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admin

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Abstract

Reinforced earth retaining wall is a new composite supporting structure comprised of reinforcement, wall sheathing and filling. Compared with traditional gravity retaining wall, the reinforced earth retaining wall is a flexible structure with better deformation compatibility and seismic behavior.Moreover, the reinforced earth retaining wall requires low foundation bearing capacity and has advantages like economical efficiency as well as better appearance which are incomparable to other structures. Therefore, it is widely used in the construction of road, water conservancy, city construction and railway.

The reinforced earth retaining wall having good seismic behavior does not mean it can resist the earthquake effect of any grade. To reinforced earth retaining wall with seismic design required in the specification, the effect of seismic force should be taken into account in design calculation. According to the current standard, in the area where seismic intensity is level six or above, the reinforced earth retaining wall should be designed to resist earthquake. If adopting pseudo-static method to calculate seismic effect, the effect of vertical seismic force should be neglected, only calculating the effect of horizontal seismic force.

This thesis gives a brief introduction to the structure, characteristics, development and application of the reinforced earth retaining wall, at the same time, analyzes its reinforcement mechanism and failure modes through the structure of the reinforced earth retaining wall. Reinforced earth is a composite structure itself, and interrelationship of each component makes it relatively complex in the working state.

Key words: Reinforced earth retaining wall; Seismic force ; Stability analysis and calculation

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?1? ?? .................................................................................................................. 1

1.1 ???????? ........................................................................................ 1

1.1.1 ???? ............................................................................................. 1

1.1.2??? .................................................................................................. 1

1.2???????????? ......................................................................... 2

1.2.1 ???????? ............................................................................. 2

1.2.2 ????????? ......................................................................... 2

1.3??????????? ............................................................................. 2

1.3.1?????? ...................................................................................... 2

1.3.2 ?????? ..................................................................................... 3

1.3.3 ???????? ............................................................................. 4

1.4 ?????????????? ................................................................ 4

1.4.1 ?? ..................................................................................................... 4

1.4.1 ????? ......................................................................................... 5

?2? ?????????? ................................................................................. 6

2.1 ???????? ........................................................................................ 6

2.1.1 ??? ................................................................................................. 6

2.1.2 ?? ..................................................................................................... 6

2.1.3 ?? ..................................................................................................... 7

2.2 ?????????? ................................................................................ 8

2.2.1 ???? ............................................................................................. 9

2.2.2 ?????? ................................................................................... 10

2.3 ?????????? .............................................................................. 11

2.4 ?????? .............................................................................................. 13

2.5 ??????????????? .......................................................... 15

?3? ??????????????? ........................................................... 16

3.1 ????????? .................................................................................. 16

3.1.2 ????? ....................................................................................... 17

3.2 ????????? .................................................................................. 18

3.2.1 ????? ....................................................................................... 18

3.2.2 ?????????????? ................................................... 21

3.2.3 ????? ....................................................................................... 22

3.2.4 ?????? ................................................................................... 23

3.2.5 ??????? ............................................................................... 23

3.2.6 ??????? ............................................................................... 23

3.2.7 ???????? ........................................................................... 24

3.2.8 ???????? ........................................................................... 24

3.2.9 ??????? ............................................................................... 25

3.2.10 ??????? ............................................................................. 26

3.3 ????????? .................................................................................. 27

3.3.1 ????????? ....................................................................... 27

3.3.2 ??????? ............................................................................... 28

3.3.3 ???????? ........................................................................... 28

?4? ??????? ........................................................................................... 30

4.1 ???? ...................................................................................................... 30

4.1.1 ???? ........................................................................................... 30

4.1.2 ???? ........................................................................................... 30

4.2???? ....................................................................................................... 31

4.2.1 ?????????? ................................................................... 31

4.2.2 ???????? ........................................................................... 32

4.3 ???????? ...................................................................................... 33

4.3.1 ???????????? ........................................................... 33

4.3.2 ?????? ................................................................................... 33

4.3.3 ????? ....................................................................................... 34

4.4 ???? ...................................................................................................... 34

4.4.2 ???? ........................................................................................... 36

4.4.3 ???? ........................................................................................... 37

4.5 ?????? .............................................................................................. 38

4.5.1 ???? ........................................................................................... 38

4.5.2 ???? ........................................................................................... 38

4.5.3 ???? ........................................................................................... 39

4.6 ??????? .......................................................................................... 39

4.7 ???????? ...................................................................................... 40

4.7.1 ???????????? ........................................................... 40

4.7.2 ???????????? ........................................................... 41

4.8 ??????? .......................................................................................... 42

4.8.1 ???????? ........................................................................... 42

4.8.2 ???????? ........................................................................... 43

4.8.3 ??????? ............................................................................... 44

4.9 ??????? .......................................................................................... 44

4.9.1 ??? ............................................................................................... 44

4.9.2 ?? ................................................................................................... 45

4.9.3 ?? ................................................................................................... 45

4.10 ??????? ........................................................................................ 45

4.10.1 ?????? ................................................................................. 45

4.10.2 ??????????? ............................................................. 46

4.11 ?? ............................................................................................................. 47

?? ............................................................................................................................. 48

???? ..................................................................................................................... 50 ?? ............................................................................................. ?????????

????????? ????

? ?

?1? ?? ................................................................................................................... 1

1.1 ????? ......................................................................................................... 1

1.2 ?????????????? ..................................................................... 2

1.2.1 ?????? ............................................................................................. 2

1.2.2 ?????? ............................................................................................. 2

1.2.3 ?????? ............................................................................................. 3

1.2.4 ?????????? ............................................................................. 3

1.2.5 ??? ......................................................................................................... 3

1.2.6 ?????? ............................................................................................. 3

1.3 ?????????? ..................................................................................... 5

?2? ?????? ................................................................................................... 7

2.1 ?????? ..................................................................................................... 7

2.2 ?????? ..................................................................................................... 8

2.3 ?????? ..................................................................................................... 9

?3? ?????? ............................................................................................... 10

3.1 ?? ................................................................................................................... 10

3.2 ?? ................................................................................................................... 10

3.3 ??? ............................................................................................................... 11

3.4 ??? ............................................................................................................... 11

3.5 ?????? ................................................................................................... 12

3.6 ???????????? ........................................................................... 12

3.6.1 ??????? ....................................................................................... 12

3.6.2 ??????? ....................................................................................... 13

3.6.3 ??????? ....................................................................................... 16

3.6.4 ??????? ....................................................................................... 17

3.6.5 ??????? ....................................................................................... 18

3.6.6 ??????? ....................................................................................... 25

3.6.7 ?????? ........................................................................................... 28

3.7 ?????? ................................................................................................... 28

3.7.1 ?????? ........................................................................................... 28

1

3.7.2 ?????? ........................................................................................... 30

3.7.2 ?????? ........................................................................................... 34

?4? ???????? ....................................................................................... 40

4.1 ?????????? ................................................................................... 40

4.2 ?????????? ................................................................................... 41

4.3 ?????????? ................................................................................... 42

4.4 ??????? ............................................................................................... 42

4.5 ????????? ....................................................................................... 43

4.6 ???? ........................................................................................................... 43

4.7 ????? ....................................................................................................... 43

4.8 ???? ........................................................................................................... 44

4.9 ?????????? ................................................................................... 45

4.10 ??????? ............................................................................................... 46

4.11 ?????? ................................................................................................... 46

?5? ???? ....................................................................................................... 48

???? ....................................................................................................................... 51

??? ........................................................................................................................... 52

? ? ....................................................................................................................... 53

??A ???? ....................................................................................................... 54

A.1 ?????? ................................................................................................... 54

A.2 ?????? ................................................................................................... 58

??B ???? ....................................................................................................... 61

B.1 ???? ........................................................................................................... 61

B.2 ??????? ............................................................................................... 61

2

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1.1?????

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??????????????20??60????????Hei Vidal???????????????????????????????????????????????????????1965??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

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1978??????????????????????????????????????20??80?????????????????????????????????????????????????????????????????????????????????????????????????????????10000??????????

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1.2 ??????????????

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???????????????????????????????????????????????????????????????????????????????????6?????????????????????????????????????????????????????????

???????????????????????????????????????????????????????????????????????????????????????????????????

??????????????????????

Abstract

Reinforced earth retaining wall is a new composite supporting structure comprised of reinforcement, wall sheathing and filling. Compared with traditional gravity retaining wall, the reinforced earth retaining wall is a flexible structure with better deformation compatibility and seismic behavior.Moreover, the reinforced earth retaining wall requires low foundation bearing capacity and has advantages like economical efficiency as well as better appearance which are incomparable to other structures. Therefore, it is widely used in the construction of road, water conservancy, city construction and railway.

The reinforced earth retaining wall having good seismic behavior does not mean it can resist the earthquake effect of any grade. To reinforced earth retaining wall with seismic design required in the specification, the effect of seismic force should be taken into account in design calculation. According to the current standard, in the area where seismic intensity is level six or above, the reinforced earth retaining wall should be designed to resist earthquake. If adopting pseudo-static method to calculate seismic effect, the effect of vertical seismic force should be neglected, only calculating the effect of horizontal seismic force.

This thesis gives a brief introduction to the structure, characteristics, development and application of the reinforced earth retaining wall, at the same time, analyzes its reinforcement mechanism and failure modes through the structure of the reinforced earth retaining wall. Reinforced earth is a composite structure itself, and interrelationship of each component makes it relatively complex in the working state.

Key words: Reinforced earth retaining wall; Seismic force ; Stability analysis and calculation

? ? ??????

?1? ?? .................................................................... 1

1.1 ???????? ........................................... 1

1.1.1 ???? ............................................. 1

1.1.2??? ............................................... 1

1.2???????????? ................................... 2

1.2.1 ???????? ..................................... 2

1.2.2 ????????? ................................... 2

1.3??????????? ..................................... 3

1.3.1?????? ......................................... 3

1.3.2 ?????? ......................................... 3

1.3.3 ???????? ..................................... 4

1.4 ?????????????? ............................... 4

1.4.1 ?? ................................................. 4

1.4.1 ????? ........................................... 4

?2? ?????????? ................................................. 6

2.1 ???????? ........................................... 6

2.1.1 ??? ............................................... 6

2.1.2 ?? ................................................. 6

2.1.3 ?? ................................................. 6

2.2 ?????????? ....................................... 8

2.2.1 ???? ............................................. 8

2.2.2 ?????? ......................................... 9

2.3 ?????????? ...................................... 10

2.4 ?????? .............................................. 12

2.5 ??????????????? ............................ 14

?3? ??????????????? .................................... 15

3.1 ????????? ........................................ 15

3.1.2 ????? .......................................... 16

3.2 ????????? ........................................ 17

3.2.1 ????? .......................................... 17

3.2.2 ?????????????? ........................ 20

3.2.3 ????? .......................................... 21

3.2.4 ?????? ........................................ 21

3.2.5 ??????? ...................................... 22

3.2.6 ??????? ...................................... 22

3.2.7 ???????? .................................... 22

3.2.8 ???????? .................................... 23

3.2.9 ??????? ...................................... 23

3.2.10 ??????? ..................................... 25

3.3 ????????? ........................................ 25

3.3.1 ????????? .................................. 25

3.3.2 ??????? ...................................... 26

3.3.3 ???????? .................................... 27

?4? ??????? ....................................................... 28

4.1 ???? .................................................. 28

4.1.1 ???? ............................................ 28

4.1.2 ???? ............................................ 28

4.2???? .................................................. 29

4.2.1 ?????????? ................................ 29

4.2.2 ???????? .................................... 30

4.3 ???????? .......................................... 30

4.3.1 ???????????? ............................ 30

4.3.2 ?????? ........................................ 31

4.3.3 ????? .......................................... 31

4.4 ???? .................................................. 32

4.4.1 ???? ............................................ 32

4.4.2 ???? ............................................ 34

4.5 ?????? .............................................. 36

4.5.1 ???? ............................................ 36

4.5.2 ???? ............................................ 37

4.5.3 ???? ............................................ 37

4.6 ??????? ............................................ 38

4.7 ???????? .......................................... 38

4.7.1 ???????????? ............................ 38

4.7.2 ???????????? ............................ 39

4.8 ??????? ............................................ 40

4.8.1 ???????? .................................... 40

4.8.2 ???????? .................................... 42

4.8.3 ??????? ...................................... 42

4.9 ??????? ............................................ 42

4.9.1 ??? .............................................. 42

4.9.2 ?? ................................................ 43

4.9.3 ?? ................................................ 43

4.10 ??????? ........................................... 43

4.10.1 ?????? ....................................... 43

4.10.2 ??????????? ............................. 44

4.11 ?? ..................................................... 45 ??? ......................................................................... 46 ???? ....................................................................... 49

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