Recommendations on Excavations (EAB) - Deutsche Gesellschaft für Geotechnik e.V.

Page 7

4

General stipulations for analysis . . . . . . . . . . . . . . . . . . .

49

4.1 4.2 4.3 4.4 4.5 4.6 4.7

Stability analysis (R 81) . . . . . . . . . . . . . . . . . . . . . . . General information on analysis methods (R 11) . . . . . . . . Determination and analysis of embedment depth (R 80) . . . Determination of action effects (R 82) . . . . . . . . . . . . . . Modulus of subgrade reaction method (R 102) . . . . . . . . . Finite-element method (R 103). . . . . . . . . . . . . . . . . . . Analysis of the vertical component of the mobilised passive earth pressure (R 9). . . . . . . . . . . . . . . . . . . . . Analysis of the transfer of vertical forces into the subsurface (R 84) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stability analyses for braced excavations in special cases (R 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Serviceability analysis (R 83) . . . . . . . . . . . . . . . . . . . Allowable simplifications in limit states GEO 2 or STR (R 104) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . .

49 51 54 58 61 66

...

71

...

73

... ...

76 78

...

82

5

Analysis approaches for soldier pile walls. . . . . . . . . . . . . .

85

5.1 5.2 5.3

Determination of load models for soldier pile walls (R 12) . . . Pressure diagrams for supported soldier pile walls (R 69). . . . Soil reactions and passive earth pressure for soldier pile walls with free earth supports (R 14) . . . . . . . . . . . . . . . . . . . . Fixed earth support for soldier pile walls (R 25) . . . . . . . . . Equilibrium of horizontal forces for soldier pile walls (R 15) .

.. ..

85 87

.. .. ..

89 91 94

6

Analysis approaches for sheet pile walls and in-situ concrete walls . . . . . . . . . . . . . . . . . . . . . . . .

99

6.1

Determination of load models for sheet pile walls and in-situ concrete walls (R 16). . . . . . . . . . . . . . . . . . . . . Pressure diagrams for supported sheet pile walls and in-situ concrete walls (R 70). . . . . . . . . . . . . . . . . . . . . Ground reactions and passive earth pressure for sheet pile walls and in-situ concrete walls with free earth support (R 19) . . . . . . Fixed earth support for sheet pile walls and in-situ concrete walls (R 26) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

106

7

Anchored retaining walls . . . . . . . . . . . . . . . . . . . . . . . .

111

7.1

Magnitude and distribution of earth pressure for anchored retaining walls (R 42) . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis of force transfer from anchors to the ground (R 43). . . . Verification of stability at the lower failure plane (R 44) . . . . . .

111 112 113

4.8 4.9 4.10 4.11

5.4 5.5

6.2 6.3 6.4

7.2 7.3 XIV

. . . . . .

. . . . . .

99 101 103


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.