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APPLICATION OF PILE

FOUNDATION TECHNOLOGIES IN

TRANSPORT CONSTRUCTION

IN VIETNAM

PROF. DR. NGUYEN VIET TRUNG

DR. TRAN VIET HUNG

UNIVERSITY OF TRANSPORT AND COMMUNICATIONS

CONTENTS

OVERVIEW

APPLICATION OF LARGE DIMENSION BORED PILE FOUNDATION IN VIETNAM

APPLICATION OF LARGE DIMENSION STEEL PIPE PILE FOUNDATION IN VIETNAM

CONCLUSIONS

1

2

3

4

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OVERVIEW

In Vietnam, dimension of piles from 1000 – 2000 mm

were applied not only for bridge construction but also

for building construction.

Large dimension piles were applied in many big bridge

projects such as Can Tho bridge, Thanh Tri bridge,

Nhat Tan bridge, etc.

The first bored pile dimension of 2500mm was applied

at Can Tho bridge, the first steel pipe sheet pile

(D1200mm) foundation was applied at Nhat Tan bridge.

���� The application of them in Vietnam will be discussed

in this presentation.

SOME APPLICATION OF PILE FOUNDATION TECHNOLOGIES IN

TRANSPORT CONSTRUCTION IN VIETNAM

APPLICATION OF LARGE DIMENSION

BORED PILE FOUNDATION IN VIETNAM

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OVERVIEW OF CANTHO BRIDGE

OVERVIEW OF CANTHO BRIDGE

North Pylon South Pylon

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INSTALLATION OF BORED PILES D = 2500MM

Bored Piles Drilling Works L=92m

Reverse Circulation Drilling (RCD)

Machine

North Pylon

North Pylon

INSTALLATION OF BORED PILES D = 2500MM

Rebar Cage Installation

South Pylon

North Pylon

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BORED PILES CONCRETE WORKS

North Pylon

South Pylon

DRILLING MONITORING FOR BORED PILES ULTRA

SONIC TEST (KODEN TEST)

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INTEGRITY TEST FOR BORED PILES

INTEGRITY TEST RESULTS FOR BORED PILES

VELOCITY PROFILE

0m

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

95.42000 2500 3000 3500 4000 4500 5000

Apparent Velocity [m/s]

Relative EnergyLow High

To check the integrity of

bored pile concrete

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BORED PILE LOADING TEST BY OSTERBERG CELL

Soil Profile & Positions of Multi-

Osterberg Cells

Total Jacks Capacity P=10,000

ton

BORED PILE LOADING TEST

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INSTALLATION OF OSTERBERG CELL IN REBAR CAGE

Installation of O-Cell

CONVENTIONAL LOADING TEST BY CONCRETE BLOCKS

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LOADING STEPS OF OSTERBERG CELL TEST

LOADING-DISPLACEMENT CURVE OF OSTERBERG CELL

TEST

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NORTH PYLON PILE CAP EXCAVATION & PILE HEAD

TREATMENT

NORTH PYLON PILE CAP REBAR INSTALLATION WORKS

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SOME APPLICATION OF PILE FOUNDATION TECHNOLOGIES IN

TRANSPORT CONSTRUCTION IN VIETNAM

APPLICATION OF LARGE DIMENSION

STEEL PIPE PILE FOUNDATION IN

VIETNAM

PROJECT – THANHTRI BRIDGE

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PROJECT – NHATTAN BRIDGE

OVERVIEW OF NHATTAN BRIDGE

A Total of 8.293 km

Phu Thuong IC at Tay HoVinh Ngoc IC at Dong Anh

11000

MNNN:+2.33

MNTK:+13.67

Bearing Stratum48743

33

000

8200

8200

33200

78

40

0

8000 3000

32

41

07

840

0

32

41

0

16891

13

50

0

Estimated Steel Pipe Sheet Pile Foundation Steel Pipe Sheet Pile Foundation

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STEEL PIPE SHEET PILE FOUNDATION

- 1.2m diameter steel pipe sheet piles – interlocking joints

- About 118 piles per foundation

- Exterior piles are used as cofferdam

- Embedment elevation varies -30m to -40.5m

§¤

NG

AN

HH

µ N

éI

8446101351158210135

48743

8446

12297

8200

12297 10874

16891

4346

4346 8 Bea d Wid t h

D165.2

Bea d Wid t h8

D1200

PIPE INTERLOCKING JOINT DETAIL

Fil l ed

11

Co n c r et e

D1200

DESIGN DESIGN -- PROCEDUREPROCEDURE

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DESIGN MODELDESIGN MODEL

Efficiency of Joints

DESIGN MODELDESIGN MODEL

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FOUNDATION OF MAIN SPANFOUNDATION OF MAIN SPAN

LONGITUDINAL DIRECTIONLONGITUDINAL DIRECTION

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TRANSVERSE DIRECTIONTRANSVERSE DIRECTION

STEEL PIPE SHEET PILE FOUNDATION DESIGN

SPECIFICATION IN VIETNAM

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CONCLUSIONS

1) Large dimension piles can be applied for long span

bridges in Vietnam.

2) New steel pile sheet pipe foundation can be applied

for deep foundations in Vietnam.

The design specification: TCCS 03/2012 – TCĐBVN