岩溶发育区若干濒危建筑的岩土工程治理

地溶发育区地基的稳定性以及胀缩性的分析研究得出：在岩溶发育区，除岩溶塌陷造成濒危建筑物下，地基土的失水收缩及其它多种原因均会导致地基失稳，基础下沉，造成建筑物墙柱体开裂。应用托板技术治理由岩溶塌陷造成的老建筑物开裂；对因地基土发生侧挤、流失而造成开裂的建筑物采用帷幕桩截并对流失地段灌浆加固；而因地基土暂时失水收缩而引起的局部开裂则不一定必须进行地基处理。

THE REGULATION OF GEOTECHNICAL ENGINEERING IN THE DANGEROUS-FACINGBUILDINGS WITH IN KARST AREAS

Based on analysis and research on the stability and the expansibility and shrinkage of the foundation in the karst region, the author points out: In the karst region, apart from the close hazardous bulidings caused by karst collapse, foundation instability and foundation settlement and crack of building wall-body can be caused by foundation soil shrinkage because of water loss Plate stock technique is used for the crack of older buildings caused by karst collopse; The building whose crack caused by lateral press or loss of foundation soil can be controlled by heavy curtain pile as wall as improved by growting in the loss foundation soil; The part crack of building caused by temporary water loss of foundation soil may be taken foundation treatment or not