圆形巷道围岩流变机理分析  

Rheological Mechanism Analysis on Surrounding Rocks of Circular Roadway

作　　者：韩猛[1,2] 王连国[1] 

机构地区：[1]深部岩土力学与地下工程国家重点实验室,江苏徐州221008 [2]中国矿业大学力学与建筑工程学院,江苏徐州221008

出　　处：《煤矿安全》2012年第1期23-26,共4页Safety in Coal Mines

基　　金：国家重点基础研究发展计划(973)资助项目(2010CB226805);国家自然科学基金资助项目(50874103);江苏省自然科学基金资助项目(BK2008135)

摘　　要：以具有普遍代表意义的圆形巷道为载体,依靠Burgers流变模型,对巷道围岩弹性区、塑性软化区、塑性残余强度区流变机理进行了分析研究,推导了各区域的位移解,应力解,求出了塑性区半径范围,并通过工程实例,验证了理论推导的正确性,可为巷道的变形控制提供理论参考。In this paper,circular tunnel with the universal significance was put as the carrier,burgers rheological model was relyed,the rheological mechanism of the elastic area,plastic softening area and plastic residual strength area of surrounding rocks were analyzed,the displacement and stress of every area were found,the radius of plastic area was solved,the theoretical analysis was verified to be true through the engineering examples.It can be provided a theoretical reference for controlling the deformation of the roadways.

关 键 词：圆形巷道 围岩 流变 机理 

分 类 号：TD313.5[矿业工程—矿井建设]