砂土的地震液化分析与防护
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摘要
运用理论分析和实践对比的方法,系统研究了砂土地震液化的危害、产生的机理、形成条件以及判别标准。研究认为砂土液化与砂土的相对密度、粒径大小、成分、级配组成、密度、饱水砂层的成因、时代、埋藏条件以及地震等因素有关,并且需满足一定的条件才能产生砂土液化现象。同时给出了剪应力法、标贯试验法、静力触探法等常见的液化判别方法。最后从建筑场地的选择、地基的改良、基础形式的选择及砌置深度等方面提出了具体的砂土液化防治措施与方法。
The paper systematically analyzes sands seismic liquefaction hazard、mechanism、conditions of forming and distinguishable criterion through theoretical analysis and practical contrast. It concludes that seismic liquefaction relates to relative density、size of particle、component、grade of particle、density、cause of full water sands formation、age、embedding condition and earthquake.It will happen under certain conditions. It gives distinguishable methods, such as shearing strength method、standard penetration test method、cone penetration test method. Finally the paper puts forwards material preventing seismic liquefaction methods, such as building site selection、ground reinforce、shape selection and embedding depth of foundation.
The paper systematically analyzes sands seismic liquefaction hazard、mechanism、conditions of forming and distinguishable criterion through theoretical analysis and practical contrast. It concludes that seismic liquefaction relates to relative density、size of particle、component、grade of particle、density、cause of full water sands formation、age、embedding condition and earthquake.It will happen under certain conditions. It gives distinguishable methods, such as shearing strength method、standard penetration test method、cone penetration test method. Finally the paper puts forwards material preventing seismic liquefaction methods, such as building site selection、ground reinforce、shape selection and embedding depth of foundation.
引文
[1]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1981.
[2]杨位.地基及基础[M].北京:中国建筑工业出版社,1998.
[3]陈希哲.土力学地基基础[M].北京:清华大学出版社,1989.
[4]高振世,朱继澄,唐九如,等.建筑结构抗震设计[M].北京:中国建筑工业出版社,1997.
[5]虞海珍,李小青,邬旭.高速公路路基砂土液化处理[J].交通科技,2006(8),4:80~82.
[6]李空军,杨勇新,林建华,等.饱和砂土液化机理分析及其抗液化措施[J].基建优化,2006(6),3:83~85.
[2]杨位.地基及基础[M].北京:中国建筑工业出版社,1998.
[3]陈希哲.土力学地基基础[M].北京:清华大学出版社,1989.
[4]高振世,朱继澄,唐九如,等.建筑结构抗震设计[M].北京:中国建筑工业出版社,1997.
[5]虞海珍,李小青,邬旭.高速公路路基砂土液化处理[J].交通科技,2006(8),4:80~82.
[6]李空军,杨勇新,林建华,等.饱和砂土液化机理分析及其抗液化措施[J].基建优化,2006(6),3:83~85.
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