利用多种地基检测手段为强夯设计提供依据
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摘要
通过在某湿陷性黄土大范围回填土石方地基试夯区域利用静载荷试验、面波试验、标准贯入试验、探井试验、孔隙水压力测试、地面沉降量测试多种监测检测手段进行系列试验,检验试夯设计参数是否合理,为6 000 k N·m能级强夯的设计提供依据,也能为后期的监测、检测提供参考,为后期整个场地,乃至汾西地区的强夯设计提供依据,以确定强夯的能击、遍夯之间的间隔时间、夯击次数以及强夯点位的距离、强夯影响深度等参数,取得了良好的处理效果。
In a large range of collapsible loess foundation backfill compaction test using static load test,surface wave test,standard penetration test,borehole test,pore water pressure test,ground settlement monitoring and testing means to test various series of tests,test compaction test,design parameters are reasonable,and provide the basis for the design of 6 000 k N·m level dynamic compaction,can also provide reference for monitoring and inspection of late,late for the venue,as well as the Fenxi area of dynamic compaction and provide a basis for design,to determine the dynamic compaction can strike,over time intervals between the compaction,compaction times and tamping point distance and the effect of strong tamping depth and other parameters,obtained the treatment effect is good.
In a large range of collapsible loess foundation backfill compaction test using static load test,surface wave test,standard penetration test,borehole test,pore water pressure test,ground settlement monitoring and testing means to test various series of tests,test compaction test,design parameters are reasonable,and provide the basis for the design of 6 000 k N·m level dynamic compaction,can also provide reference for monitoring and inspection of late,late for the venue,as well as the Fenxi area of dynamic compaction and provide a basis for design,to determine the dynamic compaction can strike,over time intervals between the compaction,compaction times and tamping point distance and the effect of strong tamping depth and other parameters,obtained the treatment effect is good.
引文
[1]JGJ 79—2012,建筑地基处理规范[S].
[2]GB 50025—2004,湿陷性黄土规范[S].
[3]白冰,徐华轩,刘海波.强夯置换法处理松软土地基的若干问题研究[J].岩土力学与工程学报,2010(S1):3001-3006.
[4]崔爱明.孔隙水压力观测在高速公路软土地基处理施工中的应用[J].岩土工程界,2009(9):60-66.
[5]王铁宏,水伟厚.10 000 k N·m高能级强夯时的地面变形与孔压试验研究[J].岩土工程学报,2005(7):21-23.
[2]GB 50025—2004,湿陷性黄土规范[S].
[3]白冰,徐华轩,刘海波.强夯置换法处理松软土地基的若干问题研究[J].岩土力学与工程学报,2010(S1):3001-3006.
[4]崔爱明.孔隙水压力观测在高速公路软土地基处理施工中的应用[J].岩土工程界,2009(9):60-66.
[5]王铁宏,水伟厚.10 000 k N·m高能级强夯时的地面变形与孔压试验研究[J].岩土工程学报,2005(7):21-23.