| 基于层状岩体卸荷演化的锦屏I级地下厂房洞室群稳定性与调控 |
| |
| 引用本文： | 黄书岭,王继敏,丁秀丽,邬爱清,段绍辉,卢波,胡志刚.基于层状岩体卸荷演化的锦屏I级地下厂房洞室群稳定性与调控[J].岩石力学与工程学报,2011,30(11):2203-2216. |
| |
| 作者姓名： | 黄书岭 王继敏 丁秀丽 邬爱清 段绍辉 卢波 胡志刚 |
| |
| 作者单位： | (1. 长江科学院 水利部岩土力学与工程重点实验室，湖北 武汉 430010；2. 二滩水电开发有限责任公司，四川 成都 610021) |
| |
| 基金项目： | 国家重点基础研究发展计划(973)项目(2011CB710603); 国家自然科学基金资助项目(50909007); 水利部公益性行业科研专项项目(201001009) |
| |
| 摘 要： | 锦屏I级水电站地下厂房洞室群开挖支护设计与施工控制以及整体稳定性等问题十分突出，施工期已经明显呈现出高应力、低强度应力比条件下围岩的卸荷变形与破坏特征。根据锦屏I级地下厂房层状岩体力学特性，采用考虑卸荷演化的层状岩体本构模型及其数值模拟方法，反演获得初始地应力场以及层状岩体力学参数。在此基础上，对锦屏I级地下厂房洞室群进行三维数值模拟分析，获得一些对高应力下锦屏I级水电站大型地下洞室群施工期围岩稳定与支护安全等方面的认识，提出洞室群围岩应力释放调控、松弛区承载力调控以及变形开裂调控等适时工程调控措施与建议。研究结果表明，洞室群整体开挖完成后的现场监测结果和围岩稳定现状等证实了所提出的认识和调控措施的合理性，表明层状岩体本构模型及其数值模拟分析方法能够较好地反映高应力下层状岩体中大型地下洞室群施工期的工作性状。
|
| 关 键 词： | 岩石力学锦屏I级水电站地下洞室群高地应力低强度应力比层状岩体本构模型卸荷演化工程调控 |
| 收稿时间： | 2011-03-09; |
Stability and Control for Underground Caverns of Jinping I Hydropower Station Based on Unloading Evolution of Layered Rockmass |
| |
| HUANG Shuling,WANG Jimin,DING Xiuli,WU Aiqing,DUAN Shaohui,LU Bo,HU Zhigang.Stability and Control for Underground Caverns of Jinping I Hydropower Station Based on Unloading Evolution of Layered Rockmass[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(11):2203-2216. |
| |
| Authors: | HUANG Shuling WANG Jimin DING Xiuli WU Aiqing DUAN Shaohui LU Bo HU Zhigang |
| |
| Affiliation: | (1. Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources，Yangtze River Scientific Research Institute，Wuhan，Hubei 430010，China；2. Ertan Hydropower Development Company Ltd.，Chengdu，Sichuan 610021，China) |
| |
| Abstract: | The problems including support design,construction control and overall stability of surrounding rock are very serious in the underground caverns of Jinping I hydropower station.The unloading deformation and failure characteristics of surrounding rock under the conditions of high stress and low strength stress ratio have been clearly shown during the excavation.According to the mechanical characteristics of layered rock,the initial stress field and mechanical parameters of layered rock are obtained by invers... |
| |
| Keywords: | rock mechanics Jinping I hydropower station underground caverns high geostress low strength stress ratio layered rock mass constitutive model unloading evolution engineering control measures |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩石力学与工程学报》浏览原始摘要信息 |
|
点击此处可从《岩石力学与工程学报》下载全文 |
