| 开巷初期临时支护压力预测的新方法 |
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| 引用本文： | 王永岩 段克信. 开巷初期临时支护压力预测的新方法[J]. 煤炭学报, 1999, 24(5): 461-465 |
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| 作者姓名： | 王永岩 段克信 |
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| 作者单位： | 辽宁工程技术大学力学与工程科学系!辽宁阜新123000 |
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| 摘 要： | 应用边界罚单元（ 弹簧元） 与有限元相结合， 计算了开巷初期巷道周边应力集中的大小及其分布状态， 把复杂的边界条件转化为增加一个新单元（ 边界弹簧元） 的问题来处理， 并使新单元在结构上和原有单元处于同等地位， 为开巷初期预测临时支护压力， 进行临时支护的设计提供了参考．
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| 关 键 词： | 围岩压力 巷道支护 有限元 边界罚单元 |
A new prediction method of the pressure of early temporary support |
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| WANG Yong yan,DUAN Ke xin. A new prediction method of the pressure of early temporary support[J]. Journal of China Coal Society, 1999, 24(5): 461-465 |
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| Authors: | WANG Yong yan DUAN Ke xin |
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| Abstract: | Combined the boundary punition element (spring element) with the finite element and stress distribution around the periphery of a tunnel in the initial period of tunnel excavation are calculated.With boundary spring element,complicated boundary condition can be changed into another guestion added with a new element that is on the same position as original elements.It presents a new way for pressure prediction of early pressure of temporary support which is an important reference of support design in the initial period of tunnel excavation. |
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| Keywords: | ground pressure tunnel support concentration stress finite element boundary punition element |
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