重庆忠县泔井滑坡物性特征及稳定性研究
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摘要
通过对泔井滑坡的工程(以钻探方法为主)地质勘察评价,对滑坡的物理力学性质及其稳定性有了较为系统的认识:①滑坡体的物质成分主要为粉质粘土加碎、块石;②潜在滑移带均由粉质粘土组成;③对滑坡体和滑移带土的物理力学性质用表格形式进行阐述;④对滑坡体发生滑动的影响因素进行了系统分析;⑤采用传递系数法对滑坡体分多种工况条件进行了稳定性系数和推力计算;⑥结论:在天然状态下,滑坡的稳定系数为1.35,处于稳定状态;在暴雨状态下,加之库区水位达175m时稳定系数为1.01~1.05,滑坡处于欠稳定状态;而在175m回落至145m的过程中加暴雨及地震作用下,稳定系数为0.97~0.98,这时的滑坡处于不稳定状态。
Through geology investigating and evaluating the Gan jing slope(mainly by drilling),we have systemetic knowledge about the physiced mechanical properties and the stabilities of the slope slide.①The main component of the landslide is silty clay add detritus and rubbles.②The latent slip band is all formed with silty clay.③The physics mechanics property of the landslide body and the slip band soil were listed in tables.④System etically analyzed the influence factors of landslide body.⑤Adopt to deliver the coefficient method and divide various work conditions to calculate the stability coefficient and buck force.⑥The conclusion is: the natural state,the landslide body stability coefficient is 1.35,is in the stable state;under the condition of the continuous high strength rain,and the water level up to 175 meters,the landslide body stability coefficient is 1.01～1.05,the landslide is not stable enough;When the water level drop from 175m to 145m,and rain-storm and the earthquake,the landslide body stability coefficient is 0.97～0.98,the landslide body is in the unsteady state.
Through geology investigating and evaluating the Gan jing slope(mainly by drilling),we have systemetic knowledge about the physiced mechanical properties and the stabilities of the slope slide.①The main component of the landslide is silty clay add detritus and rubbles.②The latent slip band is all formed with silty clay.③The physics mechanics property of the landslide body and the slip band soil were listed in tables.④System etically analyzed the influence factors of landslide body.⑤Adopt to deliver the coefficient method and divide various work conditions to calculate the stability coefficient and buck force.⑥The conclusion is: the natural state,the landslide body stability coefficient is 1.35,is in the stable state;under the condition of the continuous high strength rain,and the water level up to 175 meters,the landslide body stability coefficient is 1.01～1.05,the landslide is not stable enough;When the water level drop from 175m to 145m,and rain-storm and the earthquake,the landslide body stability coefficient is 0.97～0.98,the landslide body is in the unsteady state.
引文
[1]杨克俭,陈定方,刘世凯,等.三峡滑坡仿真系统中的设计与实现[J].计算机辅助工程,1998,(2):65-68.
[2]曾旭平,王场平,李明福.GPS测定垂直位移在三峡滑坡监测中的实现[J].人民长江,2004,32(6):6-8.
[3]翁纪昌,李文智,王鑫,等.镇安场变形体特征及稳定性评价[J].地质调查与研究,2003,26(4):250-253.
[4]杨克俭.三峡滑坡碣航分析系统中3DGIS的设计与实现[J].交通科技,2005,5(总182):28-30.
[5]付治国,靳拥护.三峡地区石柱县陶家坝滑坡体物性特征及稳定性研究[J].地质调查与研究,2005,28(3):170-171.
[6]李振宇,李俊丽,唐辉明,等.一种应用于三峡滑坡探测的新方法—SNMR法[J].CT理论与应用研究,2005,14(1):57-63.
[7]杨克俭,刘舒燕,陈定方,等.三峡滑坡仿真系统中的关键技术[J].计算机仿真,1999,16(2):1-5.
[8]许向宁.三峡库区奉节县向家淌滑坡防治方案研究[J].中国地质灾害及防治学报,2004,15(2):27-31.
[2]曾旭平,王场平,李明福.GPS测定垂直位移在三峡滑坡监测中的实现[J].人民长江,2004,32(6):6-8.
[3]翁纪昌,李文智,王鑫,等.镇安场变形体特征及稳定性评价[J].地质调查与研究,2003,26(4):250-253.
[4]杨克俭.三峡滑坡碣航分析系统中3DGIS的设计与实现[J].交通科技,2005,5(总182):28-30.
[5]付治国,靳拥护.三峡地区石柱县陶家坝滑坡体物性特征及稳定性研究[J].地质调查与研究,2005,28(3):170-171.
[6]李振宇,李俊丽,唐辉明,等.一种应用于三峡滑坡探测的新方法—SNMR法[J].CT理论与应用研究,2005,14(1):57-63.
[7]杨克俭,刘舒燕,陈定方,等.三峡滑坡仿真系统中的关键技术[J].计算机仿真,1999,16(2):1-5.
[8]许向宁.三峡库区奉节县向家淌滑坡防治方案研究[J].中国地质灾害及防治学报,2004,15(2):27-31.
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