强发育岩溶地基下基础处理方案综合分析研究

Comprehensive Analysis and Research of Foundation Treatment Scheme Under Strongly Developed Karst Foundation

通过分析研究某在建项目场区桩基处理实例,总结出常用独立基础,条形基础开挖遇半岩半土的处理措施,同时对遇到检测桩基异常的情况,可通过“钻孔孔位复核-绘制检测孔示意图-物探验证-判别孔施工勘察-判别岩溶发育情况-综合推荐处理方案”的处理步骤对问题进行综合分析。可根据岩溶的发育程度选择不同的处理方式,做到既能保证安全和质量,又节省建设成本。

By analyzing the pile foundation treatment example of a project site under construction,this paper summarizes the common treatment measures for the excavation of independent foundation and strip foundation with half rock and half soil.At the same time,in case of abnormal pile foundation detection,The problems can be comprehensively analyzed through the processing steps of“drilling hole location recheck-drawing schematic diagram of testing hole-geophysical exploration verification-discriminant hole construction investigation-discriminant karst development-comprehensive recommended treatment scheme”.Different treatment methods can be selected according to the development degree of karst,so as to ensure safety and quality and save construction cost.