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| 层状岩体巷道弯曲变形的有限元模拟 | |
| 引用本文： | 王启耀,蒋臻蔚,杨林德.层状岩体巷道弯曲变形的有限元模拟[J].岩土力学,2006,27(7):1101-1104. |
| 作者姓名： | 王启耀 蒋臻蔚 杨林德 |
| 作者单位： | 1. 长安大学,建筑工程学院,西安,710061 2. 长安大学,地测学院,西安,710054 3. 同济大学,地下建筑与工程系,上海,200092 |
| 基金项目： | 国家电力总公司资助项目;长安大学校科研和教改项目 |
| 摘 要： | 在缓倾斜或水平层状岩体中开挖巷道时巷道项底板弯曲变形和破坏的问题十分突出,巷道往往因这些部位发生过大变形而率先破坏,导致结构的整体失稳.根据层状岩体的特点,分析了其弯曲变形破坏的机理和条件,利用考虑偶应力的Cosserat介质理论,基于Matlab平台编制了相应的计算程序,对水平层状岩体巷道的变形特征及影响因素进行了模拟研究,结果表明Cosserat理论对层状岩体巷道的开挖模拟是适用的,而且简便. |
| 关 键 词： | 层状岩体 巷道 Cosserat介质理论 数值模拟 |
| 文章编号： | 1000-7598-（2006）07-1101-04 |
| 收稿时间： | 2004-10-09 |
| 修稿时间： | 2005-05-02 |
Numerical modeling of flexural deformation of laneway in layered rock mass |
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| WANG Qi-yao,JIANG Zhen-wei,YANG Lin-de.Numerical modeling of flexural deformation of laneway in layered rock mass[J].Rock and Soil Mechanics,2006,27(7):1101-1104. | |
| Authors: | WANG Qi-yao JIANG Zhen-wei YANG Lin-de |
| Institution: | 1.College of Civil Engineering, Chang’an University, Xi’an 710061, China; 2.College of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China; 3.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China |
| Abstract: | The problem of flexural deformation and failure of the roof of laneway is prominet when a laneway is excavated in horizontal layered rock mass. Customarily, the deformation of roof is so large that it failures first and thus leads to the whole structure collapse. According to its special characters of flexural deformation and failure mechanism, the authors write a program with Matlab based on cosserats’ theory. By using the program, the deformation character and influencing factors are studied. The result indicates that the cosserats’ theory is suitable to simulating the laneway excavating in layered rock mass; and it is simple and convenient. |
| Keywords: | layered rock mass laneway cosserats&rsquo theory numerical modeling |
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