| 采动影响下采区上覆岩层层间剪切滑移模型分析 |
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| 引用本文： | 刘东燕,孙海涛,张艳.采动影响下采区上覆岩层层间剪切滑移模型分析[J].岩土力学,2010,31(2):609-614. |
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| 作者姓名： | 刘东燕 孙海涛 张艳 |
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| 作者单位： | 1.重庆大学 土木工程学院，重庆 400044；2.煤炭科学研究总院重庆研究院，重庆 400037 |
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| 基金项目： | 国家重大基础研究发展计划项目(973)，国家自然科学基金重点项目，国家科技支撑计划课题，国家自然科学基金青年基金项目 |
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| 摘 要： | 采动影响下采区上覆岩层将发生剧烈的调整，产生水平和垂直方向的位移。由于煤系岩层具有明显的分层性，这使得通过均匀介质或者松散体理论获得的岩层位移具有很大的局限性。建立了承受非均匀荷载的等效复合岩梁模型，并对上覆岩层的层间剪切滑移进行描述，且通过数值模拟和工程实例对模型进行了验证分析。结果表明，该模型是适合描述采区上覆岩层层间剪切滑移规律的。
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| 关 键 词： | 层间滑移 复合岩梁 剪切破坏 |
| 收稿时间： | 2008-06-26 |
A model of shear slipping of overlying strata under mining disturbance |
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| LIU Dong-yan,SUN Hai-tao,ZHANG Yan.A model of shear slipping of overlying strata under mining disturbance[J].Rock and Soil Mechanics,2010,31(2):609-614. |
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| Authors: | LIU Dong-yan SUN Hai-tao ZHANG Yan |
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| Institution: | 1. College of Civil Engineering, Chongqing Univesity, Chongqing 400044, China; 2. Chongqing Branch, Chinese Coal Research Institute, Chongqing 400037, China |
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| Abstract: | Under the mining disturbance the overlying strata will get a great adjustment; and displacements in the vertical and horizontal orientations occur. The characteristics of layers in coal geology overlying strata make the strata slipping displacement not reasonable which gained based on the homogeneous medium or loosening medium theory. So a complex rock beam model is set up to analyze the overlying strata shear slipping; and a numerical simulation for an engineering example is given to demonstrate the correctness of the model. The results show that the model is reasonable and feasible. |
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| Keywords: | strata slipping complex rock beam shear failure |
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