Theory And Finite Element Analysis Of Shaped Steel And Cement Soil Wall Supporting Structure

Cement soil wall as a type of foundation pit supporting, because of it’s no vibration, no noise, no pollution, good sealing effect and low cost advantages, it is widely applied in the soft soil foundation excavation depth is less than 7 m. Shaped steel and cement soil wall supporting technology is a further extension and development of cement soil retaining wall. In depth and displacement requirement is not high,reinforcement steel can be added to cement retaining wall pit side, making the steel and cement soil wall together can give full play to the performance. Because the steel inserti on depth is larger than the burial depth of the cement soil retaining wall, shaped steel can not only improve the wall overturning resistance, but also can improve the slip resistance and the overall stability of cement soil retaining wall. Therefore, when designing cement wall,we can reduce the thickness of the wall in the relatively small space, can be solved by this method.In this paper, based on the domestic and foreign related research, focusing on the ory and practice is an urgent need to solve the problem, a systematic study is made on the following:Firstly, on the basis of analyzing traditional design method of cement soil retaining wall, i proposed steel buried depth, shaped steel spacing and method to check the stability of the combinated supporting structure.Secondly, using the finite element software simulation of a combination of steel and cement soil retaining wall supporting structure under conditions of deformation behavior excavation discussed cement wall thickness, depth of insertion of steel, buried deep cement walls, steel When changing the thickness of the soil stiffness were five conditions occur, the maximum horizontal displacement of the variation of cement soil wall, steel rule and section stress the stress distribution and other soil cement.Combinatied supporting structure of shaped steel and cement soil wall is a new support system, analysis and summary of this article may be for the use of a combina tion of excavation structural engineering instance has a certain reference value.