Design Method And Experimental Research Of The Cast-in-situ Concrete Panal Reinforced Soil Retaining Wall In High-Speed Railway

Reinforced earth technology has low cost, wide range of applications, stable performance, etc.so that the technology to achieve a significant progress and broad application prospects. However, its use in high-speed railway is always less than ideal, this is for the safety of railway transport, so the application of reinforced retaining wall is relatively slowly. With the progress of reinforced earth technology, In recent years, the technology also has some application in railway embankment construction, which is a major leap for reinforced earth technology.This paper simply describes the reinforced earth technology and the development of high-speed railway both at home and abroad. Through several aspects of the assumption of retaining wall design, packing pressure calculation, cast-in-situ concrete panel design, length design of reinforced material, packaged reinforced retaining wall length of reinforced material and layer spacing design, brace section design, determine the tension stability,overall stability and so on to consider, Through the above steps of calculation and checking, you can complete the preliminary design of the cast-in-situ concrete reinforced soil retaining wall panel.Based on Qing(dao)Rong(cheng) inter-city high-speed railway rongcheng section, on-site prototype experimental study. By laying Earth pressure cell, flexible displacement meter, single-point settlement gauge, pipe cross-section of several elements. Analysis of integral the cast-in-situ concrete reinforced soil retaining wall panel that Base earth pressure,Geogrid strain situation, the subsidence of the basement,at the top of the settlement, the lateral earth pressure, the potential failure surface, etc, and install the remote data acquisition device, to conduct of the data collection, analysis and comparison of Retaining Wall after the opening.It brief introduces the PLAXIS finite element simulation software, and to use the software to choose whole the cast-in-situ concrete reinforced soil retaining wall panel as prototype to create the finite element model, and during the construction and after completion of retaining wall that the vertical earth pressure, the lateral earth pressure, Geogrid deformation, wall failure surface and so on to take numerical simulation, and after the comparative analysis with theoretical value and field data, the three will be some differences,however the results of the simulation value and the measured values is similar to a certain extent.