文献类型：期刊文献

英文题名：Catastrophe destruction process numerical simulation of deep foundation pit support system under earthquake effect

作者：Yuan, Shengli[1]; Yang, Rui[1]

第一作者：原胜利

机构：[1] Department of Civil Engineering and Architecture, Xinxiang University, Xinxiang, 453003, China

第一机构：新乡学院土木工程与建筑学院

年份：2017

卷号：32

期号：3

起止页码：875-883

外文期刊名：Revista de la Facultad de Ingenieria

收录：EI(收录号：20173003966419)

语种：英文

外文关键词：Computer simulation - Deformation - Earthquake effects - Earthquakes - Excavation - Foundations - Geophysics - Grading - Numerical models - Soils - Unloading

摘要：This paper takes deep foundation pit as an example, sums up the theory of deformation stability of deep foundation pit, the influencing factors of deformation and the related research results. With the help of modern computer modeling, the deformation law, characteristics and stress of the excavation are analyzed in detail. The excavation supporting structure of the foundation pit is found out by means of the modeling calculation. The supporting structure on the south side and the north side of the foundation pit respectively. The feasibility of the numerical simulation was verified by combining the measured data. The numerical simulation of the pile-anchor support section on the north side shows that the soil mass decreases with the distance away from the pit wall. The influence range is about 24 m, which is two times of the excavation depth. The horizontal displacement value is only half of the pile top displacement value, which indicates that the horizontal displacement of the soil body can be effectively reduced by the gravelly soil unloading. Therefore, the condition of the place where the upper soil layer in the appropriate grading, which can greatly reduce the value of the level of displacement in order to increase the safety of support structure. ? 2017 Universidad Central de Venezuela.