复杂地质条件下多层建筑地基加固与抗变形研究

Research on Foundation Reinforcement and Deformation Resistance for Multi-storey Building under Complicated Geological Conditions

利用RFPA2D软件对不同基础选型和地基加固形式进行了分析与探讨,最终获得了满足工程需求的地基加固方式。对于承载能力相对较弱的表土,改变基础选型、选择合理的地基加固方式,可以有效的减小地基沉降量。为了防止浅层地下水通过断层导水裂隙流向采空区而造成的地表水流失,对断层采取一定的加固措施是十分必要的。相同的建筑荷载作用下,断层加固后比加固前的地表沉降量将会减小。

Different foundation selection and methods of foundation reinforcement were analyzed and discussed by using Software RFPA2D,an useful reinforcement method obtained eventually met project needs.For surface soil with relatively low bearing capacity,selecting different foundation and proper foundation reinforcement can effectively reduce the foundation subsidence.It is necessary to take some measures to reinforce the fault,so as to prevent water loss in soil surface resulting from shallow groundwater flowing into mind-out area through water-conductive fissure.Under the same building loading,the ground subsidence will be reduced after the fault is reinforced.