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缓倾斜层状巷道破坏过程实验研究

发表时间:2009-07-31  浏览量:1383  下载量:663
全部作者: 赵远,刘哲,胡立华
作者单位: 中国矿业大学(北京)力学与建筑工程学院
摘 要: 采用基于相似理论的地质力学模型实验对巷道在地应力作用下的变形破坏过程进行研究。尝试采用以板状单元模拟缓倾层状岩体,对徐州矿区旗山矿缓倾(8°)层状岩体的产状及结构性特征进行模拟,再现了巷道的破坏全过程。从实验过程和结果上看:模型较好地反映了实际工程岩体的产状和结构特征,初步得出了缓倾斜层状岩体受力变形破坏特征的主要表现为非对称变形和钝角破坏,这一结论对巷道稳定性控制具有重要意义。
关 键 词: 井巷工程;模型实验;单元板;缓倾岩层;非对称变形;钝角破坏
Title: The research on destruction process of gently-slant stratified surroundings of roadway
Author: ZHAO Yuan, LIU Zhe, HU Lihua
Organization: School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing)
Abstract: This paper used geomechanical model experiment based on the similarity theory to study the distortion destruction process of roadway under crustal stress function. The study has used plate-type elements to simulate the gently-slant stratified surroundings of the roadway. It has been used to simulate occurrence and constitutive characteristics of the gently-slant rock (8� in Qishan coal mine, Xuzhou mining area. The entire destruction process of roadway has been reappeared. The experiment process and the result indicate that the physical model has well reflected occurrence and structural features of the actual engineering rock mass. It has been obtained that the distortion characteristics of the gently-slant rock mainly include asymmetrical distortion and obtuse angle destruction. The conclusion has important meaning to the roadway stability control.
Key words: sinking and driving engineering; model experiment; cell board; gently-slant rock stratum; asymmetrical deformation; obtuse angle destruction
发表期数: 2009年7月第14期
引用格式: 赵远,刘哲,胡立华. 缓倾斜层状巷道破坏过程实验研究[J]. 中国科技论文在线精品论文,2009,2(14):1417-1424.
 
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