chuong 0 (2-d turtorial) - ly thuyet co ban

7/25/2019 Chuong 0 (2-D Turtorial) - Ly Thuyet Co Ban

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PLAXISPLAXIS

Presented ByPresented By

NguyenNguyen MinhMinh TamTam

BBMN #MN #$$A C&NA C&N''N MN MNGNG

KHOA KKHOA K))THUTHU,,T XY DT XY D..NGNG

October 2008October 2008


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"#$"#

"#$"#

2

ChapterChapter 11

CCcc TTnhnh N0ngN0ng CC33aa Ch67ngCh67ng TrTrnhnh PlaxisPlaxis 22--DD

ChapterChapter 2288ng Sung Su::tt VaVa==BiBi>>nn D@D@ngng TrongTrong #:#:tt

ChapterChapter 33ngng X6X6AAThThatat NN6B6Bcc vv KhngKhng ThThatat NN6B6Bcc

ChapterChapter 44CCcc MM HHnhnh TrongTrong PlaxisPlaxis

Chapter 5Chapter 5

PlaxisPlaxis 33--DD


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N#n mng cng trnh xy d'ng dn d*ng v cng

nghi,p: mng C7n, mng b0ng, mng b, mng c-c,h/Co su, t61ng ch4n, s61n d/c, cng trnh trnC7t y8u c x9 l (gia t;i tr6ak@ thuCt),

N#n mng cng trnh cDu C61ng: hDm b tng c/tthp, n#n C61ng, n#n san l7p, m/ tr* cDu,

N#n mng cng trnh c;ng cng trnh biEn: b1 k,mng c-c Ci cao, mng c-c ch>u t;i tr-ng ngang,

N#n mng cng trnh thGy l=i: CCp b tng c/t thp,hH chIa, CCp C7t,

NG DNG DJJNGNG

3

1


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4

1

Shield Tunnelling, TBM

NATM

NG DNG DJJNGNG


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5

1 NG DNG DJJNGNG


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6

1 NG DNG DJJNGNG


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7

1 NG DNG DJJNGNG


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8

1 NG DNG DJJNGNG


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9

1 NG DNG DJJNGNG


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10

1 NG DNG DJJNGNG


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11

1 NG DNG DJJNGNG


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12

1 NG DNG DJJNGNG


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1. Ci CDt ch67ng trnh

2. C:u trc ch67ng trnh: GEm c 4 modul

- Plaxis Input

- Plaxis Calculations

- Plaxis Output

- Plaxis Curves

GIGILLI THII THINNU CH/&NG TRNH PLAXISU CH/&NG TRNH PLAXIS1


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NHNHPPNG #NG #QQC TC TNH HNH HPPU HIU HINNU CU CSSA PLAXISA PLAXIS

1. Xem xt sGt67ng tc giHa k>t c:u v nInC:t

2. M phJng bi ton theo qu trnh thi cng (StagedConstruction)

3. Tnh ton theo thKi gian (cM k>t)

4. XcCNnhplGc n6Bc lP rQng

5. Tnh ton dng th:m6. Tnh ton bi ton tSi trTngCUng

7. C-Phi Reduction Technique

mequilibriuforneeded

availableimum

S

S

FS

max=

rnr

n

c

c

FS

tan

tan

+

+=

8. T@o l6Bi dV dng

1


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2

15

TTTTO M HNHO M HNH


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2

16

TTTTO M HNHO M HNH


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2

17

TTTTO M HNHO M HNH

PhWn tXdWm, bSn (plate)


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2

18

TTTTO M HNHO M HNH

Parameter Name Value Unit

Type of behaviour

Normal stiffness

Flexural rigidityEquivalent thickness

Weight

Poisson's ratio

Material

type

EAEI

d

w

Elastic

12106

0.12106

0.346

8.3

0.15

-

kN/m

kNm

2

/mm

kN/m/m

-


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2

19

TTTTO M HNHO M HNH


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2

20

TTTTO M HNHO M HNH

Lin k>t c3a thanh


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2

21

TTTTO M HNHO M HNH


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2

22

TTTTO M HNHO M HNH

VSi CNa kY thu[t (geotextiles) v bWu neo vHa xi m0ng (Grout anchor)


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2

23

TTTTO M HNHO M HNH

l

l

FEA

=

F: lGc ko C\t trnC7n vN chiIu rUng

l: chiIu di gin di

l: chiIu di m]u thX


Normal stiffness EA 1105 kN/m


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2

24

TTTTO M HNHO M HNH

Thanh chMng (anchor)

2


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2

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TTTTO M HNHO M HNH

2


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2

26

TTTTO M HNHO M HNH

2


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2

27

TTTTO M HNHO M HNH


Type of behaviour

Normal stiffnessSpacing out of plane

Maximum force

Material type

EALs

Fmax

Elastic

2105

2.5

11015

-

kNm

kN

2 T


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2

28

TTTTO M HNHO M HNH

2 TTTO O M HNH


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2

29

TTTTO M HNHO M HNH

#6^c thGc hi_n`staged construction c3a Calculation

2 TTTTO M HNHO M HNH


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2

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TTTTO M HNHO M HNH

PhWn tXti>p xc (interface)



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2

31

TTTTO M HNHO M HNH



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2

32

TTTTO M HNHO M HNH



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2

33

TTTTO M HNHO M HNH



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2

34

TTTTO M HNHO M HNH



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2

35

TTTTO M HNHO M HNH

Neutralkn = 100 ksoilks = 0

Impermeablekn = 0.001 ksoilks = 0

Drainkn = 100 ksoilk

s= 100k

soil



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2

36

TTTTO M HNHO M HNH

Plaxis 8.2 in Calculation phase



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2

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TTTTO M HNHO M HNH

Tunnel



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TTTTO M HNHO M HNH



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2

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TTTTO M HNHO M HNH



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2

40

TTO N



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2

41

TT



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2

42

TT



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2

43



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2

44

Cc thng sM v[t li_u



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Dilatancy cut offDilatancy cut off

2



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46

Soil Test



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Cc thng s ban $%u



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50



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Boundaries



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Initial Conditions



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sin1=oK



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1. M hnh Mohr-Coulomb (Dao)

CCC M HNH #C M HNH #UUTT3


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1. M hnh Mohr Coulomb (Dao)

2. M hnh Hardening-Soil

3. M hnh Soft-Soil (Cam-clay)4. M hnh Soft-Soil-Creep (8ng xXtheo thKi gian)

NGNG XX99 CCGGAA##77TT4


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1. Khng That n6Bc

2. That n6Bc

3. Non porous: Ck khng thot n6Bc vBi p lGc n6Bc lPrPng khng pht sinh

CalculationCalculation5


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Staged Construction



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0,02



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Sensitive Analysis and Parameters Variation

5 CalculationCalculation


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OutputOutput6


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OutputOutput6


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OutputOutput6


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CurveCurve7


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DynamicsDynamics8


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DynamicsDynamics8Loads & Boundary Conditions


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DynamicsDynamics8Absorbent Boundary


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DynamicsDynamics8


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DynamicsDynamics8


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DynamicsDynamics8Earthquakes


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DynamicsDynamics8

Dynamic Parameters


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DynamicsDynamics8

Rayleigh v


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DynamicsDynamics8

TN


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8.x

DynamicsDynamics8

7.2


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8.x

DynamicsDynamics8Dynamic Loads


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DynamicsDynamics8


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DynamicsDynamics8


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DynamicsDynamics8


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DynamicsDynamics8


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DynamicsDynamics8


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DynamicsDynamics8


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chuong 0 (2-d turtorial) - ly thuyet co ban

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