装药爆炸作用下地下拱形结构等效静载研究  

Equivalent Static Loads of the Underground Arched Structures Subjected to Charge Explosions

作　　者：王斌[1] 宋二祥[1] 周健南[2] 

机构地区：[1]清华大学土木工程系,北京100084 [2]解放军理工大学工程兵工程学院,南京210007

出　　处：《地下空间与工程学报》2007年第6期1157-1161,1175,共6页Chinese Journal of Underground Space and Engineering

基　　金：中国博士后基金一等资助项目(20060400065)

摘　　要：分析研究了影响装药爆炸作用下拱形地下结构等效静载大小的两个主要因素——岩石震塌拱高度和落石速度,得出了岩石震塌拱高度随地下拱形结构覆盖层厚度增加而呈线性递减的规律,以及落石速度随覆盖层厚度增加而呈指数衰减的规律,并对等效静载随岩石覆盖层厚度的衰减进行了量化分析。研究结论对于相关科研及工程实践具有重要参考价值。The arching height of the peeled rocks and the velocity of the falling rocks,which mainly affect the equivalent static load on the underground arched structure under charge explosions,were analyzed,respectively.It is concluded that the arching height of the peeled rocks decreases linearly with the increase of the cover thickness of underground arched structure,while the velocity of the falling rocks decreases exponentially.The quantitative relationship between the equivalent static load and the rock cover thickness were also analyzed.The conclusions provide important references for the relevant theoretical research and engineering practice.

关 键 词：地下结构 结构设计 计算方法 装药爆炸 

分 类 号：O383[理学—流体力学]