| 振冲挤密碎石桩在高速公路软基处理中的应用 |
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| 引用本文： | 李 睿,张海霞,孟小萍.振冲挤密碎石桩在高速公路软基处理中的应用[J].甘肃地质学报,2011(2):69-72. |
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| 作者姓名： | 李 睿 张海霞 孟小萍 |
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| 作者单位： | 甘肃煤田地质局;甘肃煤炭地质勘查院;甘肃省交通服务公司;陕西恒通工程咨询有限责任公司试验检测中心; |
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| 摘 要： | 以青兰高速公路富县段某段软基处理为例,从振冲挤密碎石桩的加固机理和主要设计内容入手,通过对复合地基的动力触探和静载试验结果分析,得出碎石桩不但提高了地基的承载力,增加了桩间土的强度,减少了地基沉降,而且消除或减轻了地基的液化,使复合地基承载力达到了设计要求,并为以后在高速公路建设中的软基处理提供了参考资料。
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| 关 键 词： | 挤密碎石桩 软土路基 动力触探 静载试验 |
Treatment for Soft Foundation in Highways with Vibro-compacted Macadam Pile |
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| LI Rui,ZHANG Hai-xia and MENG Xiao-ping.Treatment for Soft Foundation in Highways with Vibro-compacted Macadam Pile[J].Acta Geologica Gansu,2011(2):69-72. |
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| Authors: | LI Rui ZHANG Hai-xia and MENG Xiao-ping |
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| Institution: | LI Rui1,ZHANG Hai-xia2,MENG Xiao-ping3(1.Gansu Institute of Coal Geology and Exploration,Gansu Provincial Bureau of Coal Geology,Lanzhou 730000 China,2.Transport Services Company of Gansu Province,Lanzhou 730030,China,3.Shanxi Hengtong Engineering Consulting Co.Ltd,Xi'an 710075,China) |
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| Abstract: | Taking the examples of the treatment for a soft foundation reinforced with vibro-compacted macadam pile in Qingdao-Lanzhou expressway in Shanxi Province,the testing results of the composite ground is studied.The reinforcing mechanism and design for the macadam pile is discussed,the results of static loading test and heavy dynamic penetration test for composite ground of a soft foundation is analyzed.It is found that the reinforcing method,which uses densification by macadam pile to consolidate the soft foun... |
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| Keywords: | vibro-compacted macadam pile soft foundation heavy dynamic penetration test static loading test |
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