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注浆抬升地表是地下工程施工中控制地层和邻近建筑物沉降的常用方法。从注浆抬升作用机理出发,阐述了止浆墙在地层注浆抬升中的作用,根据单浆泡均匀扩张模式,采用FLAC3D有限差分程序,建立了含止浆墙的注浆抬升数值模型,分析了止浆墙刚度与厚度变化对土层抬升效应的影响。工程应用表明,利用止浆墙注浆是建筑物沉降控制和基础抬升的有效方法。
Grouting to raise the surface is a common method for controlling the settlement of subterranean structures and the settlement of buildings in underground engineering. Based on the mechanism of grouting uplift, the function of the grouting wall in grouting uplift was expounded. According to the uniform expansion mode of single grout, the finite element program FLAC3D was used to establish the numerical model of grouting uplift with grouting wall. Influence of Stirring Wall Stiffness and Thickness Change on Soil Uplift. Engineering application shows that the use of grouting wall grouting is an effective method of settlement control and foundation lifting.