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| 顺倾岩质高边坡开挖变形机理及计算 | |
| 引用本文： | 肖玉辉,李振存,段劲,韦慧,曾坚. 顺倾岩质高边坡开挖变形机理及计算[J]. 长沙理工大学学报(自然科学版), 2013, 10(2): 22-27 |
| 作者姓名： | 肖玉辉 李振存 段劲 韦慧 曾坚 |
| 作者单位： | 1. 长沙理工大学交通运输工程学院,湖南长沙410004;湖南省垄茶高速公路建设开发有限公司,湖南株洲412400 2. 长沙理工大学交通运输工程学院,湖南长沙410004;公路工程省部共建教育部重点实验室,湖南长沙410004 3. 湖南省垄茶高速公路建设开发有限公司,湖南株洲,412400 4. 长沙理工大学交通运输工程学院,湖南长沙,410004 |
| 基金项目： | 湖南省交通厅科技资助项目，公路工程省部共建教育部重点实验室开放基金资助项目 |
| 摘 要： | 为了进一步分析顺倾岩质高边坡开挖变形机理及变形计算方法，以卸荷岩体力学及弹性力学理论为基础，对顺层岩质边坡开挖前后边坡岩体的力学状态进行了分析，对边坡变形机理及变形计算方法进行了研究．研究结果表明，顺倾岩质边坡在开挖过程中岩体受力状态发生改变，岩体力学参数劣化，造成边坡发生较大变形；顺层岩质边坡变形主要由浅表松弛变形、卸荷回弹变形及顺层滑移变形组成．并以弹性力学为基础提出了边坡卸荷回弹变形的计算方法，依据能量守恒定律推导了顺层滑移变形的计算方法． |
| 关 键 词： | 顺倾岩质边坡 开挖卸荷 变形机理 位移计算 |
Mechanism and calculation research on excavation deformation of high layered dip rocky slope |
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| XIAO Yu-hui , LI Zhen-cun , DUAN Jin , WEI Hui , ZENG Jian. Mechanism and calculation research on excavation deformation of high layered dip rocky slope[J]. Journal of Changsha University of Science and Technology(Natural Science), 2013, 10(2): 22-27 | |
| Authors: | XIAO Yu-hui LI Zhen-cun DUAN Jin WEI Hui ZENG Jian |
| Affiliation: | 1(1.School of Traffic and Transportation Engineering,Changsha University of Science and Technology,Changsha 410004,China;2.Hunan Longcha Expressway Construction and Development Co.Ltd.,Zhuzhou 412400,China;3.Key Laboratory of Highway Engineering,Ministry of Education,Changsha 410004,China) |
| Abstract: | In order to analyze the deformation mechanism and deformation computing meth- od ,based on unloading rock mass mechanics and elastic mechanics,through the slope stress state analyze of initial and unloading, the deformation mechanism and deformation compu- ting method of layered dip rocky slope are studied. The results show that with excavation, the stress state of slope is changed,the mechanic parameters of rock mass is depredated and the deformation is occurred. The deformation types of layered dip rocky slope are relaxation deformation,rebound deformation and slippage deformation. Based on elastic mechanics, the rebound deformation calculation method is proposed. According to law of conservation of energy,the slippage deformation calculation method is proposed. |
| Keywords: | layered dip rocky slope excavation unloading deformation mechanism displacement calculation |
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