| 大型地下水封洞库施工顺序优化 |
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| 引用本文： | 郭伟.大型地下水封洞库施工顺序优化[J].长沙理工大学学报(自然科学版),2012,9(3):30-35. |
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| 作者姓名： | 郭伟 |
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| 作者单位： | 湛江国储石油基地有限责任公司,广东廉江,524400 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用侧压系数法对某大型地下水封洞库地应力进行了反演分析,运用回归反演的初始地应力场对储油主洞室进行了施工开挖分层及施工顺序的优化分析.分析结果表明,储油主洞室分三层和分四层两种开挖方式对岩体位移和塑性区分布范围影响都不大;跳挖开挖方式优于平行开挖和依次开挖方式,在施工工期许可的条件下宜按照跳挖开挖方式进行,各洞室开挖掌子面间距宜控制在40m以上.
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| 关 键 词： | 地下水封油库 施工顺序 稳定性 |
Excavation sequence analysis of underground water-seal petroleum storage caverns |
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| GUO Wei.Excavation sequence analysis of underground water-seal petroleum storage caverns[J].Journal of Changsha University of Science and Technology:Natural Science,2012,9(3):30-35. |
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| Authors: | GUO Wei |
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| Institution: | GUO Wei(Zhanjiang National Petroleum Reserve Base Co.,Ltd.,Lianjiang 524400,China) |
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| Abstract: | A method of side pressure coefficient of describing geostatic stress is used to invert initial ground stress.Based on measured data of initial ground stress,the side pressure coefficient is obtained by regression analysis.The excavation sequence and construction method of underground petroleum storage caverns are simulated by using numerical method.The result shows that the deformation and plastic zone of rock mass are nearly the same under two ways of excavation: three-layer excavation and four-layer excavation.The separate excavation way is superior to the parallel and successive excavation way.The space between of working faces should be greater than 40 m. |
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| Keywords: | underground water-seal petroleum storage caverns excavation sequence stability |
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