swing_anchor english catalog(042407)

8/6/2019 Swing_anchor English Catalog(042407)

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SW-RCD Ancho

SW-PCD Ancho

SW-PTF Ancho

www.swanchor.com


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First, we thank all of you who have cared for and encouraged SAMWOO.

SAMWOO was established on Oct. 22nd, 1993, and has continued to endeavor to become the

best company in connection to Ground Anchors. Through our consistent development of ground

anchor and various tests, we are endeavoring to enable safer and economically efficient con-

struction, based on perfect quality management.

We obtained the ISO 9001 international certificate for the first time in the nation, in the

design/production and additional services field for ground anchors. We are equipped with out-

standing R&D abilities as a small size business, having a R&D department, Venture enterprise

certificate, and INNOBIZ certificate, and became the representative company in the Korean

Anchor industry by obtaining various certifications that prove our advanced management

performance, marketability, and future potential.

SAMWOO is ceaselessly endeavoring to grow into a world class company from the

leading enterprise in the Korean anchor industry, instead of being satisfied with the pre-

sent status, through various overseas business activities, such as establishing a branch

in Vietnam and business partnerships with foreign construction companies. We are real-

izing our vision of distributing the Korean anchor technology around the world.

Everyone, including individuals and companies who conduct designing, construction, auditing,

and supervising regarding the ground anchors!

Here we are, the best for any work regarding anchors. The SAMWOO family can solve any

problems you may have. If there is a need to design and install ground anchors in the moon,

SAMWOO will take care of it.

President's Message

SAMWOO was established on Oct. 1993, and has continued to endeavor to become the best company in connection to Ground Anchors

during the past 15 years. We are producing quality anchor products, satisfying our customers, through ceaseless research development

and quality improvement efforts.

As the leading company in the Korean anchor market, SAMWOO is making all possible efforts to grow into a first class company in the

global anchor industry, never once being satisfied with the current status.

Value proposition for the customers, Value reflection for the customers,

Value realization for the customers

SAMWOO Anchor Technology President

KIM JEONG - RYEOL


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SAMWOOAnchor Technology

President's Message, Company Introduction & History

Ground AnchorIntroduction and Application of Ground Anchor

Classification and Characteristics of Ground Anchor

SW-RCD Anchor SystemSW-RCD Anchor Product Information and Removal Principle

SW-RCD Anchor Process and Achievement

SW-PCD Anchor SystemSW-PCD Anchor Product Information

SW-PCD Anchor Process and Achievement

SW-PTF Anchor SystemSW-PTF Anchor Product Information

SW-PTF Anchor Process and Achievement

Anchor Test, Laboratory and Quality Management

R&D, Official Certification and Rough Map

02~

04~

06~

10~

14~

18~

20~

www.swanchor.co

1993. 10 Establishment of SAMWOO Engineering

Ltd.

1995. 4 Establishment of the ground anchor

system production factory

1995. 6 Establishment of SAMWOO Corporation

1997. 9 Constructed an additional ground anchorsystem production line

1998. 9 Obtained venture enterprise

certificate

2000. 6 Obtained ISO 9001 certificate

2001. 5 Established research &

development department

2002. 5 Exported ground anchor system

production line (China)

2005. 3 Won the National Tax Service Director

Award

2005. 7 Constructed new factory

2005. 10 Selected as a prospective small business

2005. 11 Constructed an additional production

factory

2006. 8 Opened the branch in Vietnam

2006. 12 Obtained the technically innovative small

enterprise (INNOBIZ)

Company History



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PermanentWall

PermanentTieback

TemporarySheeting

SoilExistingBuilding

Temporary

Tieback

TemporarySheeting

FutureStation

Tower

PermanentTiedown

ExistingDam

PermanentTiedown

Floor Slab

Tension inAnchor

Uplift

Bridgeabutment Slope

protection

Anchor

Ground AnchorGround Anchor

Ground anchor is a system that stabilizes the struc-

ture against excessive transformation, or displace-

ment by fixing a highly strong tension member such

as the P.C. strand to both sides of the inner ground

and the structure and applying Pre-Stress. Ground

anchors are widely used to stabilize structures at var-

ious domestic and overseas construction and engi-

neering sites with its outstanding economical quality

and constructability for the past 50 years since its

commercialization.

Application of the ground anchor- Sheeting when constructing the excavationat a construction site

- Supplementation and stabilization of the cut section

for new road construction or additional construction

- Stabilization of slope

- Stabilization and supplementation of stone masonry

and revetment

- Lift up resistance for structures under ground water level

- Stabilization and supplementation of tunnel pit mouths

- Stabilize structures and foundations against earthquakes

- Stabilization of tower type structures such as steel power transmission towers

- Stabilization of foundations of bridges, such as suspension bridges

Ground Anchor

Ground anchors can be classified by their types of fixation ground, installation direction, grouting method, term of usage, and supporting method.

The most common classification is as shown in the table below. Based on the term of use, anchors used to temporarily support temporary walls

or grounds are called temporary anchors, and those used to resist load for long terms of two years or more, and that are related to the remaining

period of the structure, are called permanent anchors.

Also, anchors can be classified into frictional type anchors that are supported by the friction of the grout and the ground, ground pressure type

anchors that acquire anchoring force with the passive resistance of the ground using ground pressure boards or piles, and complex type anchors

that are a combination of the above two types, based on the supporting method of the fixation ground. Frictional type anchors can also be classi-

fied into tensile type anchors and compressive type anchors based on the load application method to the grout. Lastly, compressive type

anchors can be classified into load concentrative type anchors and load distributive type anchors depending on the distribution of the load.

Classification of Ground Anchors

Application of the ground anchor

Groundanchor

Permanent anchor

Underground type anchor

Removable anchor

Tensile type anchor

Compressive type anchor Load concentrat ive type anchor

Load distributive type anchor

Temporary anchor

Frictional type anchor

Ground pressure type anchor

Complex type anchor

04

Classification by theterm of use

Classification based onthe supporting methodof the fixation ground


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Comparison by the Characteristics of Each Anchor Type

www.swanchor.com SAMWOO

1) InitialLoading

LoadingBond Length

ResidualBond Stress

2) ProgressiveLoading

3) UltimateLoading

BondStress

1) InitialLoading

LoadingBond Length

ResidualBond Stress

2) ProgressiveLoading

3) UltimateLoading

BondStress

InitialLoading

LoadingBond Length

InitialLoading

InitialLoading

BondStress

Vicinity friction distribution graph

(Figure A)


(Figure B)


(Figure C)

Tensile type anchor

The drawbacks of tensile type anchors are that a

progressive destruction occurs due to the jacking

crack in the grout and creeps due to load concentra-

tion, greatly reducing the load. Therefore, as in the

vicinity friction distribution graph(Figure A), the

load transference distribution is as shown in curve

1) at the initial point when the load is applied,

which changes into curve 3) due to the above men-

tioned reasons with the progress of time, reducing

the load.

Also, as shown in the load change diagram(Figure

1), load curve is expected in designing by apply-

ing jacking force to the grout mass, but in fact,

since the load concentration sector exceeds the ulti-

mate pull-out force of the subject ground, the curve

is loosened to that load curve , resulting in load

curve . The main cause of this is the decrease of

the local friction due to load concentration.

Load concentrative type anchor

Compressive type anchors use PE coated P.C.

strands, generating compressing force on the grout

by fastening the strand to a separate fixation object.

The load decrease due to creeps is small compared

to that of the tensile type anchor, but highly strong

grouts should be used, and the drawback is that it

cannot acquire the necessary anchoring force in rel-

atively soft grounds. Also, as for the compressing

force applied to the grout, the load concentration is

generated at the front end as shown in the loadchange diagram(Figure 2), which may crush the

grout. Also, another drawback is that it must be

fixed to a rock bed that has high confining pressure,

or that the drilling diameter increases when

attempting to apply a load that exceeds the ultimate

resistance. Load concentrative type anchors may

also generate load decrease (load change

diagram => => ) in the case of the tensile type

and moreover, cause sudden load decrease due to

compression destruction. As shown in the vicinity

friction distribution graph(Figure B), in the case of

load concentrative type anchors, the load transfer-

ence changes from 1) to 3), decreasing the load.

Load distributive type anchor

To compensate for the drawbacks of the tensile

type and load concentrative type anchors, an

extreme load concentration must not occur at the

fixation ground and the grout mass, use a PE coate

P.C. strand that does not generate confinement of

the free anchor length, and the application of the

allowed anchoring force according to the ground

conditions be easy. To achieve this, the load-dis-

tributive-compressive type anchor is developed

recently and is being used. In this case, the load isdiffused and applied to the various parts of the

anchor body, having less impact on the grout

strength, and being able to secure necessary ancho

ing force in relatively soft grounds. This type can

have strong loads in normal and sand grounds as in

rock beds

Using load distributive type anchors, as shown in

the load change diagram(Figure 3) and the vicinity

friction distribution graph(Figure C), the load is

diffused before being applied to the ground, mini-

mizing load decrease and maintaining the initial

load distribution regardless of time.

Load change diagram

(Figure 2)

Load change diagram

(Figure 3)

Load change diagram

(Figure 1)


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SW-RCD AnchorSW-RCD AnchorSW-RCD Anchor System

SW-RCD- 50

SW-RCD- 80

SW-RCD-110

SW-RCD-140

4

6

8

10

74.8

112.2

149.6

187.0

63.6

95.4

127.2

159.0

44.88

67.32

89.76

112.20

57.24

85.86

114.48

143.10

2

3

4

5

TypeNo. of P.C. Strand

(12.7mm)Ultimate strength

(Tus)Yield strength

(Tys)Allowable force

(0.6Tus)Jacking force

(0.9Tys)No. of

Anchor body(ea)

SW-RCD anchor's detailed part photograph

SW-RCD Anchor System Structure / Specification

06

The strong points of using anchors for constructions in urban centers include effective construction management and shortening of the construc-

tion period, but this also caused serious problems, due to the difficulties in removing the tension members in later construction works or when

issuing usage permits for nearby areas. Especially, the strength per cross section of P.C. strands that are used as tension members are about six

times stronger than normal steel rods, which makes it very difficult to remove the stands buried in the ground, causing much loss of excavation

equipments and drilling equipments due to the anchors used at the nearby construction sites. Therefore, a removable anchor was developed to

enable the removal of the P.C. strands according to the construction process after completing the excavation process, which is now being widely

used.

The SW-RCD anchor system, a compressive-distributive type removable anchor that can be removed after usage, is a representative anchor

product developed and commercialized by SAMWOO for the past years. SAMWOO had obtained numerous patents for this product, and since

this product can be removed by man force without requiring cranes or backhoes such as the existing U-Turn anchors, it is a removable anchor

system that is most efficient in various aspects, such as time, space and cost.


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When fixing the SW-RCD anchor, the removal screw is located at the upper groove of the wedge, and the strand is completely bound at

this point.

After completing the construction and when removing the strand, the confining force is dissolved by cutting the head part of the anchor, and

strand , wedge , and removal screw has weak confining forces.

Then, by rotating strand , the removal screw moves to the removal net inside of the upper head cap, and the wedge also moves.

Therefore, the strand is freed from confinement, and removed.

Removal Principle of the SW-RCD Anchor

Jacking andfixation

Strand cutting,wedge moved

Strand rotationwedge

opening

Strandremoval

Fixation Strand cutting and rotation Strand removal

SW-RCD anchor removal order



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SW-RCD AnchorSW-RCD AnchorSW-RCD Anchor System Process

Machinerycarry-in

Machineryinstallation

Drilling First groutingPulling outthe casing

Secondinsertion (Airpressure orfilling grout) Curing

Anchor factory processing assembly

Repeated work

Anchor

insertion

PreparationTemporary

hole

Grout facility installation

Jacking andfixationProof test

Head & wedgeinstallation

Head partprocessing

Machinerycarry-out

Constructionprocess

Disassembly of the temporaryfacilities and removal of the strand

Repeated work

08

SW-RCD Removable Anchor Construction Order

Casing

Pre-grouting after drilling Anchor insertion Pressurized grouting

Strand removal

Removal

Grout

Anchor

Disassembly of wale andcutting the strand

Jack

Jacking and fixation

1. Take care not to tear or damage the P.E. tube that surrounds the P.C. strand. The grout going into the tube and cured grout can be a main cause of making removal difficult.

2. Take care to prevent the anchor from being twisted when inserting. Excessive twisting can make grout curing with the P.E. tube pressing the strand, making the rotation and

removal of the P.C. strand difficult.

3. When jacking the strands, precisely check the load-displacement and immediately stop jacking when an excessive displacement occurs. Excessive jacking can make the anchor

body crush the grout, and the crushed grout strongly presses the tube, making the removal of the P.C. strand difficult.

4. When conducting oxygen cutting to remove the strand, leave at least 20cm, that is, a removable length. Cutting too short can make strand rotation difficult.

5. Avoid soiling the anchor body with dirt or alien substances when moving the anchor body at the site. It is difficult to secure anchoring force, not being able to apply compression to

the grout.

6. Take care to prevent the destruction of the drilled hole when inserting the anchor body. It is difficult to secure anchoring force and the grout is yet not filled in.

SW-RCD Anchor System - Guideline


9/22

SW-RCD anchor system, the removable anchor system that has obtained many domestic and foreign patents, was first commercial-

ized in 2001, and has huge achievement which reaches 3,240,000m for the past 6 years. It is the most widely used removable

anchor system in Korea.

Major Achievements on SW-RCD Anchor System in Korea


SsangyongConstruction Co.Ltd.

Kyunghee Kung's Achim, Naesu-dong,Jongno-gu, Seoul

SK Construction,POSCO

Venture town 1, 2, Boondang,Gyeonggi-do

SK ConstructionCo.Ltd.

SK HUB SKY construction, Busan

POSCOConstruction Co.Ltd.

Starcity, Kunkook University,Gwangjin-gu, Seoul

DaewooConstruction Co.Ltd.

Project 901, Subway line 9, Seoul

Lotte ConstructionCo.Ltd.

Lotte Mixed-use Apartment,Hwanghak-dong, Seoul

POSCOConstruction Co.Ltd.

Dongbaek Juneve Shopping Mall,Yongin, Gyeonggi-do

Lotte Construction

Co.Ltd. Citypark, Yongsan, Seoul

DaewooConstruction Co.Ltd.

Daewoo Apartment, Shindorim, Seoul

Daelim/Hyundai/HyundaiIndustrial Development

Jamsil complex 1, Redevelopment,Seoul

DaedukConstruction

Mixed-use apartment, Samsan-dong,Incheon

SungwonConstruction

Sungwon Leciel Sangbong-dong, Seoul

ShindongaConstruction

2-2B Gongduk station, IncheonInternational Airport Railway

Daelim Industry,GS Construction

Block Ga, Da, Dongnam LogisticsBuidling, Jangji Complex, Seoul

29,088

29,204

26,441

26,538

89,372

29,910

34,977

42,991

39,805

29,166

33,188

35,290

31,154

85,683

Primecontractors

Construction titleTotal

length


10/22

Outstanding corrosion protection process

Block: Separately confines the strands with Grips,

maximizing the performance of the strands

Tension member: general strand and coated strand, perfect

corrosion resistance (grease) and protection with the

H.D.P.E Hose

Compressive distributive type system

Minimizes the creep due to load by not applying concentrated

load to the ground

Prevents free anchor length confinement by perfectly

protecting the tension member

The allowed anchoring force can be adjusted according to

the ground conditions

SW-PCD AnchorSW-PCD Anchor

SW-PCD anchor system is a compressive-distributive type permanent

anchor, developed and commercialized by SAMWOO. Unbonded

P.C. strands are used as tension members, having outstanding corro-

sion and rust protection. The block also has sealing structure that has

outstanding corrosion protection.

SW-PCD permanent anchor system separately confines the strands

with grips to maximize the performance of the strands, and since it

does not apply concentrated load to the ground, being a compres-

sive-distributive type anchor, it can minimize the creep due to the

load, and also, the allowed anchoring force can be adjusted accord-

ing to the ground condition.

Also, since its fixation location is flexible, it can secure the necessary

load easily as well as re-tension, even if the bearing plate or block

subsides due to the lack of the supporting force of the main floor.

SW-PCD Anchor System

10


11/22

SW-PCD Anchor System Structure / SpecificationTo strengthen the merits of the compressive-distributive type anchor, we separately confined the strands bound to the block. Such separated

confining system is a system that bounds the insert to the inside of the Grip, assembles the strand, and completely bounds by pushing it into

the device with a small diameter.

Tension member Grip(Fitting) Insert Haed Cap Grip Block


SW-PCD- 50

SW-PCD- 85

SW-PCD-110

SW-PCD-140

4

6

8

10

74.8

112.2

149.6

187.0

63.6

95.4

127.2

159.0

44.88

67.32

89.76

112.20

57.24

85.86

114.48

143.10

2

3

4

5



(Tus)Yield strength



(0.9Tys)No. of

Anchor body(ea)

12.7mm P.C. Strand - KS D 7002 SWPC 7B (Low Relaxation)

SW-PCD- 80

SW-PCD- 120

SW-PCD-160

SW-PCD-200

4

6

8

10

106.4

159.6

212.8

266.0

90.4

135.6

180.8

226.0

63.84

95.76

127.68

159.60

81.36

122.04

162.72

203.40

2

3

4

5



(Tus)Yield strength



(0.9Tys)No. of

Anchor body(ea)

15.2mm P.C. Strand - KS D 7002 SWPC 7B (Low Relaxation)

Separate discussion is required for specifications other than the standard load


12/22

Machinerycarry-in


Drilling First insertionPulling-outthe casing

Secondinsertion Curing

Anchor factoryprocessing assembly

Repeated work

Anchor

insertion


hole



Blockinstallation

Head partprocessing

Head part protectionCon's construction

Next stepprocessing Completion

Repeated work Corrosion-protection process

SW-PCD AnchorSW-PCD AnchorSW-PCD Anchor System Process

SW-PCD Permanent Anchor Construction Order

12

Block installation Jacking and fixationAnchor head part finishingand next step processing

Grout

Grouting

Anchor

Anchor insertionDrilling

Casing

1. Take care not to tear or damage the strand coating. If the strand corrodes through the damaged part, it is difficult for the permanent anchor to fully perform its role.

2. Avoid soiling the anchor body with dirt or alien substances when moving the anchor body at the site. It is difficult to secure anchoring force, not being able to apply

compression to the grout.

3. Take care to prevent the destruction of the drilled hole when inserting the anchor body. It is difficult to secure anchoring force, for the grout is yet not fil led in.

SW-PCD Anchor System - Guideline


13/22

SW-PCD anchor system, a corrosion-protection permanent anchor system, was first commercialized in 2003, and is most widely used

for various permanent purposes such as supplementation and stabilization of cut sections at new road or additional construction sites,

stabilization of slope, supplementation of revetment, stabilization of tunnel pit mouths, and lift up resistance based on its outstanding

constructability and economic efficiency.

Major Achievements on SW-PCD Anchor System in Korea


Hyundai ConstructionCo.Ltd.

Yeonnam Elementary School,Mabook-li, Yongin

HyundaiConstruction Co.Ltd. Military Mutual Aid Association apart-ment, Mabook-li, Gusung, Yongin

ChungdoConstruction

Road (Ori road) transference,Gwangmyeong~Anyang

Daelim IndustryCo.Ltd.

Nambumin-dong, Busan

Sambu ConstructionCo.Ltd.

Project 11, Yeoju~Gumi, Central inland

Samsung Corp.Co.Ltd.

Land construction, additional buildings forSamsung Precision Chemicals, Ulsan

Yongsan DistrictOffice

Road expansion, Huam-dong, Yongsan

Kumho ConstructionCo.Ltd.

Project 4, Daegu~Busan Highway

Samrim Construction,Taean E&C

STX Joseon Project D-04,Jinhae~Busan

GangsanConstruction Co.Ltd.

Underground Pedestrian road, Dongbaecomplex, Yongin, Gyeonggi-do

KyeryongConstruction Co.Ltd.

Underground road, Dongbae complex,Yongin, Gyeonggi-do

Korea HighwayManagement Corp.

Project 2, Donghaw Highway,Kangwondo

AmcoHyundai Mobis Western Office, Paju,

Gyeonggi-do

6,835

14,314

4,858

10,041

75,816

5,334

7,722

7,237

5,316

6,366

11,465

6,280

8,442

Primecontractors

Construction titleTotal

length


14/22

SW-PTF AnchorSW-PTF Anchor

SW-PTF anchor system is a tensile-frictional type permanent anchor system, which has been widely used in Korea and overseas, with suffi-

cient research results and application history. It has outstanding corrosion and rust protection, and is used for various permanent purposes

such as lift up resistance, supplementation and stabilization of cut sections at new load and additional construction area, stabilization of slope,

supplementation of walls, and stabilization of tunnel pit mouths based on its advanced quality obtained through standard production process.

There are two types according to the form of the Nose-con; an open type and a closed type.

SW-PTF Anchor System

SW-PTF Anchor (Closed Type) SW-PTF Anchor (Open Type)

14


15/22

SW-PTF Anchor System Structure / Specification

Separate discussion required for specifications in the table


SW-5-4 74.8 63.6 44.9 57.2

SW-5-5 93.5 79.5 56.1 71.6

SW-5-6 112.2 95.4 67.3 85.9

SW-5-7 130.9 111.3 78.5 100.2

SW-5-8 149.6 127.2 89.8 114.5

SW-5-9 168.3 143.1 101.0 128.8

SW-5-10 187.0 159.0 112.2 143.1

SW-5-11 205.7 174.9 123.4 157.4

SW-5-12 224.4 190.8 134.6 171.7SW-5-13 243.1 206.7 145.9 186.0

SW-5-14 261.8 222.6 157.1 200.3

SW-5-15 280.5 238.5 168.3 214.7

SW-5-16 299.2 254.4 179.5 229.0

SW-5-17 317.9 270.3 190.7 243.3

SW-5-18 336.6 286.2 202.0 257.6

SW-5-19 355.3 302.1 213.2 271.9

SW-5-20 374.0 318.0 224.4 286.2

SW-5-VAR. VAR. VAR. VAR. VAR.

TypeUltimate strength

(Tus)Yield strength



(0.9Tys)

12.7mm P.C. Strand - KS D 7002 SWPC7B (Low Relaxation)

SW-6-4 106.4 90.4 63.8 81.4

SW-6-5 133.0 113.0 79.8 101.7

SW-6-6 159.6 135.6 95.8 122.0

SW-6-7 186.2 158.2 111.7 142.4

SW-6-8 212.8 180.8 127.7 162.7

SW-6-9 239.4 203.4 143.6 183.1

SW-6-10 266.0 226.0 159.6 203.4

SW-6-11 292.6 248.6 175.6 223.7

SW-6-12 319.2 271.2 191.5 244.1

SW-6-13 345.8 293.8 207.5 264.4

SW-6-14 372.4 316.4 223.4 284.8

SW-6-15 399.0 339.0 239.4 305.1

SW-6-16 425.6 361.6 255.4 325.4

SW-6-17 452.2 384.2 271.3 345.8

SW-6-18 478.8 406.8 287.3 366.1

SW-6-19 505.4 429.4 303.2 386.5

SW-6-20 532.0 452.0 319.2 406.8

SW-6-VAR. VAR. VAR. VAR. VAR.

TypeUltimate strength

(Tus)Yield strength



(0.9Tys)

15.2mm P.C. Strand - KS D 7002 SWPC7B (Low Relaxation)


16/22

Machinerycarry-in


Drilling First insertionPulling-outfhe casing

Secondinsertion Curing

Anchor factory processing assembly

Repeated work

Anchor

insertion


hole



Blockinstallation

Head partprocessing

Next stepprocessing Completion

Repeated work Corrosion-protection process

Head part protectionCon's construction

SW-PTF AnchorSW-PTF AnchorSW-PTF Anchor System Process

16

SW-PTF Anchor Construction Order

1. Avoid soiling the anchor body's external duct with dirt or alien substances when moving the anchor body at the site. It is difficult to secure anchoring force.

2. Take care not to damage the duct (Water proof and corrosion protection is difficult)

3. Conduct induced drainage to maintain the underground water level lower than the mat's bottom, to prevent underground water leakage into the sleeve. If underground water leaks,

water-proof quality is difficult to achieve.

4. Take caution in the falling speed, to prevent strong falling into the drilled hole when inserting the anchor. If the Nose-con is damaged due to the shock caused by falling into the

drilled hole, external grouting and securing the anchoring force become difficult.

SW-PTF Anchor System - Guideline

Block installation

Drilling Anchor insertion

Jacking and fixation Anchor head part finishingand next step processing

Grouting

CasingAnchor

Grout


17/22


18/22

Anchor TestAnchor Test

SAMWOO began anchor tests in 1998, first in the anchor industry, and has been conducting various anchor tests over

hundreds of times domestically and overseas during the past 10 years, including performance tests, proof tests, creep

tests, and Lift-Off Tests. Our accruing technologies and know-how is contributing to the development of related

industries, and is being the foundation of development and producing better anchor products.

Anchor Test Service

18

Performance Test

Elastic and Residual Movement

Proof Test

Extended Creep Test

Test Types and Methods

Lift-Off Test

Lift-off test is conducted to confirm the tension of the ground anchor that has already

been fixed. Refer to the test result as data for the malignance of the tension.

Creep Test

Creep tests are conducted to judge whether the load has been decreased due to

the anchor's creep (relaxation of the strand, creep of the grout, ground, bonded

anchor length), and its purpose is in determining the creep's tendency than

quantitatively judging it. Extended creep test takes a long time (about 8 hours).

This test is for measuring the creep transformation of the anchor, and is required

for anchors built into clay grounds that have plasticity indexes of 20 or more, and

liquid limits of 50 or more.

Proof Test

Proof tests are conducted to prove and evaluate the fact that the performances

of all the anchors are fit for the site condition.

Performance Test

Pull-out test : pull-out tests are conducted to investigate and prove the

ground conditions proposed in the design conditions, used materials, the qual-ity of the anchor based on the safety rate, and the preciseness of the design

before actual anchor construction.

Jacking test : Jacking tests are conducted to anchors installed under condi-tions identical to that of actually applied anchors, and are jacked to the actual

load level. The test is conducted until the fact that stabilization in the allowed

scope has been achieved is proved, regarding the anchor jacking or creep

destruction.


19/22

SAMWOO has a production factory, comprising two production buildings, one office, and one laboratory and dormitory

(a total of four buildings) in a 1.7 acre land in Gimpo city, Gyeonggi-do. We apply standardized production processes and

semi-automated processes, and have a total of four production lines, including two RCD lines for the production of

SW-RCD anchor system, one PCD line for SW-PCD anchor systems, and a PTF line for SW-PTF anchor systems.

Production Facility

Laboratory and Quality Management


SAMWOO periodically conducts self-governed quality management tests to provide high quality products to the customers,

performing various tests for the improvement of the anchor quality and the development of new products, such as the strand

yield and break test, wedge grip test, high pressure waterproof test, real model test board, and compression strength test, with

the various test equipments at the separate test room in the factory.


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Research & DevelopmentResearch & Development

SAMWOO has been conducting various academic-industrial joint researches for the improvement of the anchor

system's performance and the development of the anchoring technology, and is contributing to the technical

development of the related industries through such R&D activities.

Research & Development

20

Korea Ground Engineering Association. Dissertation Anthology VOL. 16, NO3, p145~155

Development and Performance Evaluation of Compressive Type Anchors Korea Ground Engineering

Association 2001 Spring, Academic Conference, Dissertation Anthology, p339~346

Problems of and Improvement for General Temporary Anchors Korea Ground Engineering

Association 2003 Spring, Academic Conference, Dissertation Anthology, p545~552

A Study on the Pull-Out Characteristics of the Permanent Anchor Hanyang University,

Industrial Graduate School, Master's Degree Thesis, p2~12

SW-RCD Anchor System Manual Samwoo Geotech Co.Ltd.

Development of Inclination Supplementation Technology Using

Compressive-Distributive Type Anchors Project 2005

SAMWOO holds numerous domestic and overseas patents through its ceaseless R&D efforts at

the R&D department, and obtained many certifications such as the ISO 9001, venture enterprise

certification, and INNOBIZ, being acknowledged of its efforts for product and technology

development as well as quality management.

Official Certifications


21/22www.swanchor.com SAMWOO


Youngdungpo road

WooriBank

Jaeil Bank

Dangsan Park

Youngdungpo District

Office

Seoul-IncheoHighway

Exit 2,YoungdungpoDistrict Office

Station

Olympics RoadDangsan road


Samwoo Geotech Co.Ltd. Main Office

Ganghwa

Ganghwa Bridge downstream of Limjin River

Moonsu Mt.

Masong1.3km

3km

Downstreamo

fHanRiver

Hasung-myeon

Gimpo CC

Hasung ThreewayTaesan Family park

Magok Crossroad

Olympics RoadGimpo/Seoul

SAMWOO will further contribute to the development of the anchor technology in Korea

based on its 15 years of technical know-how as an anchor specialist, and endeavor to

widely spread the outstanding qualities of the Korean anchor technology.

Reference

1.Ground Anchor Technology Association(1996), Ground anchormethod design guidelines, Ground Anchor TechnologyAssociation,

2.Nak-gyung Kim, Wan-suh Park(2000), Load Transfer of GroundAnchors in Clay, Academic Conference, Dissertation Anthology,VOL. 16, NO3

3.Nak-gyung Kim, Sung-gyu Kim(2001), Development andPerformance Evaluation of Compression Type Anchors, KoreaGround Engineering Association 2001 Spring AcademicConference, Dissertation Anthology

4.Sung-gyu Kim (2001), Study on the load transference of compres-

sion type ground anchors, University of Sungkyunkwan, GradulateSchool, Master's Degree Thesis

5.Sung-gyu Kim, Nak-gyung Kim, Jeong-ryul Kim (2003), Problemsof and Remedies for General Temporary Anchors Korea GroundEngineering Association 2003 Spring Academic Conference,Dissertation Anthology

6.Young-chul Suck(1998), A Study on the Pull-Out Characteristics ofthe Permanent Anchor Hanyang University, Industrial GraduateSchool, Master's Degree Thesis

7.Sang-duk Lee(1997), Soil Test - Principles and Methods-, Sairon

8.Samwoo Geotech Co.Ltd. (2001), SW-RCD Anchor SystemManual, Samwoo Geotech Co.Ltd.

9.Korea Industrial Standard (1995), PC strand and PC strand, KS D7002, Korea Industrial Standard Association

10.Korea Ground Engineering Association (1992), Excavation andSheeting method, Korea Ground Engineering Association

11.AASHTO(1990), 'Tieback specifications', AASHTO-AGC-ARTBATask Force 27

12.Kim, N. K. (2000). Load Transfer on Ground Anchors inWeathered Soils, Proceedings of Improvement Techniques,September 25-26, Singapore, 2000.9.

13.Civil Engineering Department Hong Kong(1989), "ModelSpecification for Prestressed Ground Anchors"

14.FHWA-IF-99-015(1999), "Ground Anchors and AnchoredSystems"

15.L Hobst & J. Zajlc(1983), "Anchoring in Rock and Soil", ELSEVI-ER SCIENCE PUBLISHERS

16.Petros P. Xanthakos, "Ground Anchors and Anchored Structures"

Main Office_ 257-4(Youngsam Building, 3rd floor),Dangsan-Dong, 3 Ga, Youngdeungpo-Gu, Seoul

TEL. 02) 2679-2380 / FAX. 02) 2634-6912

Factory _ 641-1 Guijeon-Li, Tongjin-Eup, Gimpo, Kyunggi-Do

TEL. 031) 996-1451 / FAX. 031) 996-1455

Samwoo Geotech Co.Ltd.

Gimpo Factory


Gimpo Factory


Gimpo Factory


Gimpo Factory


Gimpo Factory


Gimpo Factory


Gimpo Factory


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Head Office_ 150-803, Youngsam Bldg, Dangsan-Dong 3 Ga 257-4,

Youngdeungpo-Gu, Seoul, Korea

Tel. 82-2-2679-2380 / Fax. 82-2-2634-6912

Factory_ 415-862, 641-1, Guijeon-Li, Tongjin-Eup, Kimpo-City,

Kyunggi-Do, Korea

Tel. 82-31-996-1451 / Fax. 82-31-996-1455

Vietnam Branch_ Unit 201 2F 180-182 Ly Chinh Thang, F9, Q3, HCMC

Tel. 84-8-290-5242 / Fax. 84-8-290-5243

swing_anchor english catalog(042407)

Documents