茨哈峡水电站消能池高边坡变形特征及稳定性研究
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摘要
阐述了高边坡发育的地质环境,描述了高边坡变形的主要特征,这些特征主要表现为边坡上部的蠕滑拉裂及中部的倾倒变形等,根据这些特征,分析了高边坡变形破坏的潜在模式,并对潜在滑面的参数进行了试验分析及取值研究,最后结合高边坡可能遇到的各种工况条件对其稳定性进行了估算,结果表明,该边坡在天然条件及降雨条件下处于稳定状态,地震条件下处于极限平衡状态,而在泄流雨雾及降雨叠加地震条件下均将失稳破坏。
The geological conditions and main deformation characteristics of high slope are described,those characteristics mainly include creeping-crack in upper portion and the toppling deformation in middle portion of the high slope.Based on these considerations the potential failure model of the high slope is analyzed and the tests of the parameters of underlying sliding plane are carried out.The stability of the high slope is estimated and calculated according to the various natural condition possibly occurred.The results indicate that the slope will be in stable condition under natural and rainfall,in limiting equilibrium condition under earthquake,and will be in unstable state under the effect of the discharging atomization or combined the rain and earthquake.
The geological conditions and main deformation characteristics of high slope are described,those characteristics mainly include creeping-crack in upper portion and the toppling deformation in middle portion of the high slope.Based on these considerations the potential failure model of the high slope is analyzed and the tests of the parameters of underlying sliding plane are carried out.The stability of the high slope is estimated and calculated according to the various natural condition possibly occurred.The results indicate that the slope will be in stable condition under natural and rainfall,in limiting equilibrium condition under earthquake,and will be in unstable state under the effect of the discharging atomization or combined the rain and earthquake.
引文
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[2]王士天,黄润秋,李渝生.雅砻江锦屏水电站重大工程地质问题研究[M].成都:成都科技大学出版社,1998.Wang Shi-tian,Huang Rui-qiu,LI Yu-sheng.Study on the main engineering geological problems of jinping hydropower station[M].Chengdu:Chengdu university of science and technology press,1998
[3]沈军辉,赵其华,李天斌,等.官地水电站坝区缓倾角断裂成因研究[J].地质与勘探,2000,vol36(6):48-51.Shen Jun-hui,Zhao Qi-hua,Li Tian-bin,et al.The genesis of gently-dipping faults in the dam-area of Guandi hydroelectric pro-ject[J].Geology and Prospecting,2000,vo136(6):48-51.
[4]席先武,邵铁全,彭建兵,等.松动岩体边坡稳定性研究[J].煤田地质与勘探,2005,vol33(2):49-52.Xi Xiau-wu,Shao Tie-quan,Peng jian-bing,et al.Relaxed rock mass slope stability analysis[J].Coal Geol Geology&Exploration,2005,vo133(2):49-52
[5]中华人民共和国水利部.《工程岩体分级标准》(GB50218-94),中华人民共和国国家标准,1995.The ministry of water resources of the People s Republic of China,Standard for engineering classification of rock masses(GB50218-94),The national code of the People s Republic of China
[6]曾宪明,姚鹏远,肖玲,等.岩土高边坡破坏模式预测预警与防治方法研究[J].预应力技术,2007(2):12-21.Zeng Xian-ming,Yao Peng-yuan,Xiao Ling,et al.Research on method of forecast and Treatments of failure model of high slope[J].Prestress Technology,2007(2):12-21
[7]边亚东,潘洪科,胡江春,等.基于Hopfield网络的边坡破坏模式识别系统[J].矿业研究与开发,2007,vol27(2):23-25.Bian Ya-dong,Pan Hong-ke,Hu Jiang-chun,et al.Slope failure pattern recognition system based on hopfield network[J].Mining Research and Development.2007,vol27(2):23-35
[8]郝航程,朱方海.基于可拓扑理论的边坡潜在破坏模式识别方法[J].地下空间与工程学报,2007,vol3(4):698-702.Hao Hang-cheng,Zhu Fang-hai.Recognition method of potential failure mode of slope based on exteniscs theory[J].Chinese Jour-nal of Underground Space and Engineering.2007,vo13(4):698-702
[9]边亚东,张玉国,常利武.边坡变形破坏模式识别系统的实现[J].岩土工程技术,2006,vol20(3):121-123.Bian Ya-dong,Zhang Yu-guo,Chang Li-wu.Realization slope failure pattern recognition system[J].Geotechnical Engineering Techique.2006,vo120(3):121-123
[10]宋彦辉,聂德新.黄河上游某电站Ⅰ#滑坡稳定性分析[J].中国地质灾害与防治学报,2002,6(2):25-29.Song Yan-hui,Nie De-xin.Stability analysis for the No.1land-side located in a certain power station at the upper reach of Huanghe River[J].The Chinese Journal of Geological Hazard and Control.2002,6(2):25-29.
[11]伊丽娟,赵洪.曼家寨矿区边坡滑动成因与防治措施研究[J].地质与勘探,2008,vo144(6):93-96.Yi Li-juan,Zhao Hong.Causes and controlling countermeasure of landslide in the Manjiazhaimine[J].Geology and Prospec-ting,2008,vo144(6):93-96.
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