scholarly journals A SOLUTION OF SEISMIC EARTH PRESSURE BY THE MOHR'S CIRCLE METHOD ITS APPLICATION TO RETAINING WALL PROBLEMS

1966 ◽  
Vol 1966 (136) ◽  
pp. 25-34
Author(s):  
Matsuhei Ichihara
Keyword(s):  
Retaining Wall ◽  
Circle Method ◽  
Earth Pressure ◽  
Seismic Earth Pressure ◽  
Mohr’S Circle

scholarly journals Stability Assessment of Earth Retaining Structures under Static and Seismic Conditions

2019 ◽  
Vol 4 (2) ◽  
pp. 15
Author(s):  
Nimbalkar ◽  
Pain ◽  
Ahmad ◽  
Chen
Keyword(s):  
Retaining Wall ◽  
Earth Pressure ◽  
Accurate Estimation ◽  
Engineering Practice ◽  
Active Earth Pressure ◽  
Stability Assessment ◽  
Linear Distribution ◽  
Backfill Soil ◽  
The Stability ◽  
Seismic Earth Pressure

An accurate estimation of static and seismic earth pressures is extremely important in geotechnical design. The conventional Coulomb’s approach and Mononobe-Okabe’s approach have been widely used in engineering practice. However, the latter approach provides the linear distribution of seismic earth pressure behind a retaining wall in an approximate way. Therefore, the pseudo-dynamic method can be used to compute the distribution of seismic active earth pressure in a more realistic manner. The effect of wall and soil inertia must be considered for the design of a retaining wall under seismic conditions. The method proposed considers the propagation of shear and primary waves through the backfill soil and the retaining wall due to seismic excitation. The crude estimate of finding the approximate seismic acceleration makes the pseudo-static approach often unreliable to adopt in the stability assessment of retaining walls. The predictions of the active earth pressure using Coulomb theory are not consistent with the laboratory results to the development of arching in the backfill soil. A new method is proposed to compute the active earth pressure acting on the backface of a rigid retaining wall undergoing horizontal translation. The predictions of the proposed method are verified against results of laboratory tests as well as the results from other methods proposed in the past.

DISCUSSION ON GENERATION OF SEISMIC EARTH PRESSURE OF ABUTMENT

2018 ◽  
Vol 74 (4) ◽  
pp. I_341-I_350
Author(s):  
Kenichi SUZUKI ◽  
Hirofumi IKEMOTO ◽  
Taisuke SANAGAWA ◽  
Keita ABE ◽  
Hideaki TAKASAKI ◽  
...  
Keyword(s):  
Earth Pressure ◽  
Seismic Earth Pressure

Study of Seismic Design Method for Slope Supporting Structure of Soil Nailing

2013 ◽  
Vol 353-356 ◽  
pp. 2073-2078
Author(s):  
Tian Zhong Ma ◽  
Yan Peng Zhu ◽  
Chun Jing Lai ◽  
De Ju Meng
Keyword(s):  
Seismic Design ◽  
Calculation Method ◽  
Retaining Wall ◽  
Earth Pressure ◽  
Calculation Model ◽  
Soil Nailing ◽  
Case Record ◽  
Analysis And Design ◽  
Supporting Structure ◽  
Earthquake Action

Slope anchorage structure of soil nail is a kind of economic and effective flexible slope supporting structure. This structure at present is widely used in China. The supporting structure belong to permanent slope anchorage structure, so the design must consider earthquake action. Its methods of dynamical analysis and seismic design can not be found for the time being. The seismic design theory and method of traditional rigidity retaining wall have not competent for this new type of flexible supporting structure analysis and design. Because the acceleration along the slope height has amplification effect under horizontal earthquake action, errors should be induced in calculating earthquake earth pressure using the constant acceleration along the slope height. Considering the linear change of the acceleration along the slope height and unstable soil with the fortification intensity the influence of the peak acceleration, the earthquake earth pressure calculation formula is deduced. The soil nailing slope anchorage structure seismic dynamic calculation model is established and the analytical solutions are obtained. The seismic design and calculation method are given. Finally this method is applied to a case record for illustration of its capability. The results show that soil nailing slope anchorage structure has good aseismic performance, the calculation method of soil nailing slope anchorage structure seismic design is simple, practical, effective. The calculation model provides theory basis for the soil nailing slope anchorage structure of seismic design. Key words: soil nailing; slope; earthquake action; seismic design;

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