| 强溶蚀带岩溶地基稳定性研究 |
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| 引用本文： | 刘宏,赵跃平,邬相国,王丹辉,赵瑞峰. 强溶蚀带岩溶地基稳定性研究[J]. 矿业研究与开发, 2011, 0(3): 35-39 |
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| 作者姓名： | 刘宏 赵跃平 邬相国 王丹辉 赵瑞峰 |
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| 作者单位： | 喀斯特环境与地质灾害防治教育部重点实验室;中国建筑西南勘察设计研究院; |
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| 基金项目： | 贵州省优秀青年科技人才培养专项资金项目(黔科合人字2009-23) |
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| 摘 要： | 强溶蚀带岩溶地基是指在基础传递的荷载作用影响范围内发育众多的溶蚀裂隙和溶孔组成,且在一定深度部位往往发育有较大溶洞的地基。根据线溶蚀率和面溶蚀率相结合的方法,采用椭圆形溶孔来模拟强溶蚀带中的溶蚀裂隙和溶蚀空间的力学效应,并根据塑性区分布形态特征和位移量值相结合的方法来进行稳定性评价。昆明新机场航站区强溶蚀带岩溶地基稳定性分析结果表明,当溶蚀率小于15%时,对岩溶地基稳定性影响较小,溶蚀率为15%～25%时影响中等,溶蚀率大于25%时,影响较大。
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| 关 键 词： | 强溶蚀带 岩溶地基 稳定性分析 |
Stability Analysis on Intensively Soluted Karst Ground |
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| LIU Hong,ZHAO Yueping,WU Xiangguo,WANG Danhui,ZHAO Ruifeng. Stability Analysis on Intensively Soluted Karst Ground[J]. Mining Research and Development, 2011, 0(3): 35-39 |
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| Authors: | LIU Hong ZHAO Yueping WU Xiangguo WANG Danhui ZHAO Ruifeng |
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| Affiliation: | LIU Hong1,ZHAO Yueping2,WU Xiangguo2,WANG Danhui1,ZHAO Ruifeng1(1.Key Laboratory of Karst Environment & Geohazard Prevention,Ministry of Education,Guiyang,Guizhou 550003,China,2.China Southwest Geotechnical Investigation & Design Institue,Chengdu,Sichuan 610081,China) |
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| Abstract: | Intensively soluted karst ground is defined to the ground densely develpoed soluted cracks and caves in the depth of load effect accompanying with some large caves at the bottom.One-dimensional ratio between the intensively soluted rock length and the drilled depth,and two-dimensional ratio between the intensively soluted rock area and the drilling investigated section area,Mechanic effects of the soluted cracks and caves are simulated by many small ellipses' model.The stability of the intensively soluted k... |
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| Keywords: | Intensively soluted rock Karst ground Stability analysis |
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