| 层状岩质边坡开挖过程的有限元模拟 |
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| 引用本文： | 江学良,曹平,杨慧.层状岩质边坡开挖过程的有限元模拟[J].岩土力学,2006,27(11):1935-1940. |
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| 作者姓名： | 江学良 曹平 杨慧 |
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| 作者单位： | 1.中南大学 资源与安全工程学院，长沙 410083；2.湖南城市学院 土木工程学院，湖南 益阳 413000 |
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| 摘 要： | 采取自编弹塑性有限元程序，在考虑岩体节理和施工爆破影响的条件下，对常－张高速公路的k135层状岩质边坡的开挖过程进行了模拟，分析了开挖过程中岩体的变形和应力状态及屈服状态，并用降低材料强度储备的有限元强度折减法，对各开挖阶段边坡的整体稳定性进行了评价。通过分析表明，k135边坡在其施工过程中是稳定的。
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| 关 键 词： | 层状岩质边坡 开挖过程模拟 弹塑性有限元 有限元强度折减法 整体稳定性分析 |
| 文章编号： | 1000-7598（2006）11-1935-06 |
| 收稿时间： | 2005-01-24 |
| 修稿时间： | 2005-01-242005-04-28 |
Simulation of stage excavation for stratified rock slope by using two-dimensional elastoplastic finite element method |
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| JIANG Xue-liang,CAO Ping,YANG Hui.Simulation of stage excavation for stratified rock slope by using two-dimensional elastoplastic finite element method[J].Rock and Soil Mechanics,2006,27(11):1935-1940. |
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| Authors: | JIANG Xue-liang CAO Ping YANG Hui |
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| Institution: | 1.School of Resources and Safety Engineering, Central South University, Changsha 410083, China) 2.School of Civil Engineering, Hunan City University, Yiyang 413000, China |
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| Abstract: | The simulation of stage excavation of the stratified rock slope of Chang-Zhang expressway is carried out by using our own two-dimensional elastoplastic finite element program,in consideration of the influence of blasting and rock joint.The rock-mass's deformation,stresses and yielding state in the excavation process are analyzed respectively.The integral safety of the high slope for every stage excavation is discussed by using the method of lowing material's strength safety factor.The results show that the slope is stable in construction process. |
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| Keywords: | stratified rock slope simulation of stage excavation elastoplastic finite element method method of lowing material's strength safety factor stability analysis |
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