碳酸盐岩无黏性高填方地基加固关键技术与现场试验研究  

Key Technology and Field Test Research of High Embankment Foundation in Karst Carbonate Rock Area

作　　者：杨振杰 朱军 王鸿 吴斌 付君宜 YANG Zhenjie;ZHU Jun;WANG Hong;WU Bin;FU Junyi(Guizhou Zhengye Engineering and Investment Incorporation Limited, Guiyang, Guizhou 550005, China;Guizhou Karst Foundation Engineering Technology Research Center, Guiyang, Guizhou 550005, China)

机构地区：[1]贵州正业工程技术投资有限公司,贵州贵阳550005 [2]贵州省岩溶地基工程技术研究中心,贵州贵阳550005

出　　处：《施工技术》2018年第13期25-28,共4页Construction Technology

基　　金：贵州省科技计划项目(黔科合机字[2011]4002号)

摘　　要：通过现场碾压及夯击试验,研究各施工工艺对碳酸盐岩块石填方地基加固效果。检测结果表明,强夯加固方法对碳酸盐岩填方地基有明显效果,采用2遍夯形成4m×4m网格,分别为4 000kN·m与3 000kN·m能级。在强夯不能处理的区域,采用振动碾压进行辅助处理。加固后的地基能够满足上部建筑物的承载力要求。This paper studied reinforcement effect of carbonate rock mass embankment construction technology through the field rolling and compaction test. The experimental result shows that dynamic compaction for carbonate rock foundation reinforcement effect is obvious,and dynamic compaction adopts two times of dynamic compaction to form 4 m × 4 m grid. Vibrating compaction is used to deal with foundation when dynamic compaction can＇t be processed. The reinforced foundation can meet the bearing capacity of the upper building.

关 键 词：地基 碳酸盐岩 高填方 加固 试验 施工技术 

分 类 号：TU753[建筑科学—建筑技术科学]