底端嵌固桩与滑体相互作用的物理模型试验研究  

Model study of interaction mechanism between anti-sliding piles and landslide

作　　者：魏作安[1,2,3] 李世海[2] 赵颖[2] 

机构地区：[1]重庆大学西南资源开发及环境灾害控制工程教育部重点实验室,重庆400044 [2]中国科学院力学研究所,北京100080 [3]湖南科技大学湖南省煤矿安全开采技术重点实验室,湖南湘潭411201

出　　处：《岩土力学》2009年第8期2259-2263,共5页Rock and Soil Mechanics

基　　金：国家自然科学基金(No.10772205);重庆市自然科学基金(No.2007BB0136);西部资源开发及环境灾害控制工程教育部重点实验室访问学者基金;湖南省煤矿安全开采技术重点实验室开放基金(No.200806)资助

摘　　要：抗滑桩与滑坡体的相互作用是一个复杂系统。利用专门设计的安置有光纤和电测器件的物理模型试验装置,通过改变抗滑桩的几何尺寸、布置间距以及滑体的滑移面角等有关参数,研究抗滑桩与滑坡体之间的相互作用,获得了在不同桩体几何尺寸、间距以及滑体滑移面角β等参数情况下抗滑桩的受力状况和滑体作用在抗滑桩上的滑坡推力函数q(H),进一步揭示了抗滑桩与滑体之间的相互作用机制。The interaction mechanism between anti-sliding piles and landslide mass is complex. In this paper, this interaction mechanism was investigated through physical model tests of anti-sliding piles and landslide mass, in which FBG sensors and common electric sensors were installed as measurement devices. Main parameters such as pile sizes, pile spaces and angle of sliding surface were investigated. Their relationship with the resistance force function was correlated. Some special landslide phenomena and pile bearing status were observed, and the interaction mechanism was understood.

关 键 词：岩土工程 抗滑桩 物理模型试验 滑坡灾害防治 

分 类 号：O319.56[理学—一般力学与力学基础]