重庆山区土石混填地基强夯加固深度的确定  

Determination on Reinforcement Depth of Dynamic Compaction for Foundation Filled with Soil-aggregate Mixtures in Chongqing Mountainous Areas

作　　者：董倩[1,2] 孔凡林[2] 赵宝云[1] 

机构地区：[1]重庆科技学院建筑工程学院,重庆市401331 [2]重庆市建筑科学研究院,重庆市400020

出　　处：《勘察科学技术》2012年第5期16-19,共4页Site Investigation Science and Technology

基　　金：重庆市自然科学基金项目(CSTC;2010BB0333);重庆市建设科技计划项目(城科字2011第(2-12)号)

摘　　要：在分析重庆山区土石混填地基强夯加固机理的基础上,结合工程实际探讨了各种强夯加固深度确定方法的有效性、合理性。分析结果表明:对于山区土石混填地基,孔隙比测量、室内击实试验等方法单一现场试验检测评价方法可靠性低、成本高,只有综合采用瑞雷波、荷载板和动力触探法才是经济、适用、可靠的检测评价法。Based on the analysis of dynamic compaction mechanism in soil-aggregate mixtures foundation,the validity and rationality of several methods to determine the reinforcement depth of dynamic compaction is studied in the practice engineering.The analyzed results show that it is unfeasible for test porosity ratio measurement and indoor compaction test using single in-situ test method for soil-aggregate mixtures foundation in mountainous areas,because a single in-situ test evaluation method has high cost and low reliability.Only to evaluate the reinforcement effect by applying Rayleigh waves,static load test and dynamic penetration test comprehensively is a reliable and economic method.

关 键 词：强夯 地基 土石混合料 有效加固深度 加固效果评价 

分 类 号：TU472[建筑科学—结构工程]