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Lateral Displacement of Retaining Walls

Journal of Geological Resource and Engineering 2016年第6期4卷 251-256页

作者： Jose Medina nicolas sau Jestls Quintana Department of Civil Engineer and Mining University of Sonora Hermosillo Sonora 83000 Mexico

When Rankine or Coulomb theories to design of retaining wall are used, it is accepted beforehand that the retaining wall will experience a lateral displacement. This displacement is normally not calculated when a retaining wall is designed. This paper describes a method to estimate the lateral displacement of retaining walls. A practical example in the lateral displacement of a gravity retaining wall is presented.

关键词： Lateral displacement retaining wall passive earth thrust active earth thrust Rankine theory Coulomb theory.

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Lateral Earth Pressure Coefficient and Lateral Earth Pressure against Retaining Walls

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Journal of Geological Resource and Engineering 2018年第6期6卷 251-260页

作者： Jose Medina nicolas sau Qutberto Acuna Department of Civil and Mining Engineering University of SonoraHermosilloSonora 83000México

According the Coulomb earth pressure theory,it is obtained that,for normally consolidated soils,the lateral pressure coefficient of a soil at rest is equal to 1,and it is independent of the soil type,either granular or cohesive;or that the material is in a loose or compact state;hard or a soft cohesive ***,a methodology to calculate the earth pressure for intermediate states between at rest condition and the active pressure is *** addition,a methodology to calculate the earth pressure for intermediate states between at rest condition and the passive pressure is *** practical examples are presented:one for a frictionless wall;and another for a coarse *** recommendations are given for the use of the lateral earth pressure coefficient for different applications.

关键词： Lateral earth pressure at rest retaining wall active thrust passive thrust Rankine Coulomb lateral earth pressure coefficient lateral earth pressure coefficient at rest

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Stability Analysis of Piles Subjected to Lateral Load in Static and Seismic Conditions

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Journal of Geological Resource and Engineering 2013年第1期1卷 11-24页

作者： Jose Medina nicolas sau Qutberto Acuna Jesus Quintana Department of Civil Engineer and Mining University of Sonora Hermosillo Sonora 83000 Mexico

It is disclosed a method for the stability analysis of foundation piles and piers subjected to lateral loading, both static and seismic conditions. The stability analysis for stratified soil is based upon the models of foundation soil-structure interaction and the Rankine＇s theory of earth passive pressure. In addition, its application is simpler and it can be solved using a spreadsheet. The procedure described in this work can be used in homogeneous soils as in stratified soils, considers the horizontal drag forces exerted by the soil mass against the foundation during an earthquake, can be used easily in the four pile and piers boundary cases, and considers the pore pressure generated in a fine saturated soil during an earthquake or during a rapid application of the horizontal load. The solution of two examples are shown, one in static condition and one in seismic condition, detailing the procedure step by step.

关键词： Ultimate lateral resistance of piles and piers lateral bearing capacity of piles and piers piles piers soil-structureinteraction in piles and piers.

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