高填方填筑体压实效果检测与分析
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摘要
首先对工程施工工艺分原地基处理和填筑体压实两部分进行了阐述。然后针对填方工程的施工质量进行了试验检测,通过静力荷载试验、标准贯入试验与瑞雷波波速试验对压实土的压实度与地基承载力进行了检测,并进行了结合分析。结果表明:静载试验与标准贯入试验均验证了填筑体处理后的地基承载力与密实程度能够满足设计要求,并且标准贯入试验的击数与静力荷载试验得到的土体变形模量之间存在一定函数关系。瑞雷波波速试验的结果同样验证了压实土的处理效果满足设计要求并与其他试验结果相吻合。
Foundation reinforcement technique and filling compaction technique were elaborated respectively.Afterwards,load test,SPT test and Rayleigh wave velocity test were applied to verify the compaction effect.Analysis of the test results shows that,load test and SPT test both verified the compaction effect and bearing capacity of the filling soil.And there are certain relationship between the impact times of the SPT test and deformation modulus obtained from load test.Rayleigh wave velocity test also verified the reinforcement effect,and the test results coincide with other tests.
Foundation reinforcement technique and filling compaction technique were elaborated respectively.Afterwards,load test,SPT test and Rayleigh wave velocity test were applied to verify the compaction effect.Analysis of the test results shows that,load test and SPT test both verified the compaction effect and bearing capacity of the filling soil.And there are certain relationship between the impact times of the SPT test and deformation modulus obtained from load test.Rayleigh wave velocity test also verified the reinforcement effect,and the test results coincide with other tests.
引文
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[2]赵振东,赵翔宇.高能级强夯处理碎石土地基的应用研究[J].工程勘察,2011,39(10):29-32.
[3]彭振斌,王继华,陈安,等.地基强夯效果的综合评价[J].无损检测,2005,27(6):324-326.
[4]肖媛媛.浅层地基冲击碾压处置的试验研究及颗粒流模拟[D].上海:同济大学,2007.
[5]赵帅军,陆新,孙发鑫,等.冲击碾压联合强夯分层填筑压实试验研究[J].工程勘察,2014,42(12):19-23.
[6]冯世进,水伟厚,梁永辉.高能级强夯加固粗颗粒碎石回填地基现场试验[J].同济大学学报(自然科学版),2012,40(5):679-684.
[7]徐平,乐金朝,刘忠玉,等.高填方路堤强夯效果的现场检测及三维有限元模拟[J].工程地质学报,2009,17(2):268-273.
[8]陈华,尹健民,肖国强,等.瞬态瑞雷波法检测堆石体地基的强夯效果[J].岩石力学与工程学报,2001,20(S1):1897-1899.
[9]胡庆贺,陈丽琴,孙彪,等.冲击碾压法在山皮石垫层处理中的试验研究[J].中外公路,2011,31(4):35-37.
[10]郑颖人,李学志.强夯加固软黏土地基的理论与工艺研究[J].岩土工程学报,2000,22(1):21-25.
[11]郭成超,乐金朝,黄江华.探地雷达法检测强夯效果的试验[J].物探与化探,2010,34(6):836-838.
[12]刘玉华.强夯法在土石混填路基中的应用及夯实效果检测[J].黑龙江交通科技,2009,32(5):66-67.