坝基粉土液化的影响因素及防治对策

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英文篇名：Influencing Factors of Silt Liquefaction and Prevention Measures for Dam Foundation 中文刊名：水电能源科学 英文刊名：Water Resources and Power 作者：刘闻欣 ; 王德咏 ; 敖谦 ; 陈波 英文作者：LIU Wenxin1 WANG Deyong2 AO Qian3 CHEN Bo1(1.Zhejiang Design Institute of Water Conservancy and Hydroelectric Power ; Hangzhou 310002 ; China ; 2.School of Naval Architecture ; Ocean and Civil Engineering ; Shanghai Jiao Tong University ; Shanghai 200240 ; China ; 3.TGP Hydrology Bureau of Changjiang Water Resources Commission ; Yichang 443002 ; China) 中文关键词：粉土 ; 重塑土 ; 液化 ; 试验 ; 防治对策 英文关键词：silt ; reconstruction soil ; testing research ; liquefaction ; test ; prevention measures 出版日期：2010-11-25 机构：浙江省水利水电勘测设计院;上海交通大学船舶海洋与建筑工程学院;长江水利委员会三峡水文局; 年：2010 期：11 出版单位：水电能源科学

摘要

针对地处强震区中拟建的王庆坨水库坝长、坝基粉土分布广且厚极易造成砂土液化问题,对重塑粉土做了振动三轴仪试验,从地震往返作用力、固结压力、初始剪应力、干密度、土结构、颗粒组成等方面研究了粉土液化的影响程度,提出了合理、经济、可行的液化防治对策。
Wangqingtuo reservoir located meizoseismal area has characteristics of long dam and widespread silt in dam foundation,which leads to sand soil liquefaction easily.Reconstruction silt has been done experiment with vibration triaxial apparatus.The influence of cyclic acting force,confining pressure,initial shear stress,dry density,soil structure and grain composition on silt soil liquefaction is analyzed.Thus,the reasonable,feasible and economic liquefied prevention measures are proposed.

引文

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