平推式滑坡成因机制及其稳定性评价

doi:10.13722/j.cnki.jrme.2018.1251

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (583 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Translational landslide is a unique in the types of landslide that very often produces devastating consequences as its concealment. Latest studies and surveys results showed us the cause of Zhuozishi landslide in Kaixian，Chongqing City. We in this respect have built a new model for the translation landslide and have modified the formula previously used for stability measurement. The theoretical and experimental application of the model showed that the sliding force and the anti-sliding force of the landslide have been increased by the layered sedimentation of the soft and hard inter-phase rock bed. This resulted in the translational landslide in respect to lower water level or even lighter rainfall. The possibility of average error of the conventional stability coefficient is ranged up to 32.27% due to the stepped/layered formation of the bed rock. The new and modified formula is more objective in respect of considering the role of staircase subsidence. During the evaluation regarding the safety of Zhuozishi landslide，the coefficient of stability which was based on the new modified formula was reduced to 1.031 from 1.179 which is reliable and very much consistent with the actual and concrete observation results. It was find out through the result that the stepped settlement caused an increased sliding force which can be termed as the key factor in the assessment and evaluation of stability of translational landslide. It is therefore，suggested that for ensuring the accuracy of the safety assessment and evaluation of the translational landslide on the soft-hard interlaced rock strata，the variation and difference between the sliding and anti-sliding forces，primarily caused by stepped and layered subsidence，must be taken into consideration.

Key words： slope engineering translational landslide genetic mechanism stepped settlement safety evaluation

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	DU Yan1
	XIE Mowen1
	WU Zhixiang1
	LIU Qiuqiang2
	HE Zheng1

Cite this article:

DU Yan1,XIE Mowen1,WU Zhixiang1, et al. Genetic mechanism about translational landslide and its safety evaluation[J]. , 2019, 38(S1): 2871-2880.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.1251 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/IS1/2871

[1] 张倬元，王士天，王兰生. 工程地质分析原理[M]. 北京：地质出版社，1994：315–337.(ZHANG Zhaoyuan，WANG Shitian，WANG Lansheng. Principles of engineering geological analysis[M]. Beijing：Geological Publishing House，1994：315–337.(in Chinese)) [2] HART M W. Bedding-parallel shear zones as landslide mechanisms in horizontal sedimentary rocks[J]. Environmental and Engineering Geoscience，2000，6(2)：95–114. [3] MIKO? M，?ETINA M，BRILLY M. Hydrologic conditions responsible for triggering the Sto?e landslide，Slovenia[J]. Engineering geology，2004，73(3)：193–213. [4] 殷坤龙，简文星，周春梅，等. 万州区近水平地层滑坡和堆积体成因机制与防治工程研究[R]. 武汉：中国地质大学，2005.(YIN Kunlong，JIAN Wenxing，ZHOU Chunmei，et al. Study on genetic mechanism and control method of landslides and accumulation body in horizontal bedded in Wanzhou[R]. Wuhan：China University of Geosciences，2005.(in Chinese)) [5] 范宣梅. 平推式滑坡成因机制与防治对策研究[硕士学位论文][D]. 成都：成都理工大学，2007.(FAN Xuanmei. Study on genetic mechanism and control method of translational gliding landslide[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2007.(in Chinese)) [6] 赵勇，许模，赵红梅. 平推式滑坡后缘启动水头探讨[J]. 人民长江，2011，42(17)：32–36.(ZHAO Yong，XU Mo，ZHAO Hongmei. Discussion on starting water head in trailing edge of translational landslide[J]. Yangtze River. 2011，42(17)：32–36.(in Chinese)) [7] 赵权利，孙红月，王智磊，等. 承压水对平推式滑坡的作用分析[J]. 岩石力学与工程学报，2012，31(2)：596–602.(ZHAO Quanli，SUN Hongyue，WANG Zhilei，et al. Influence of confined water on translational landslide[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：596–602.(in Chinese)) [8] 方贻立，马明，李聪，等. 平推式滑坡致灾机制与减灾方法研究进展[J]. 长江科学院院报，2013，30(12)：20–27.(FANG Yili，MA Ming，LI Cong，et al. Research advances in translational landslide?s mechanism and risk mitigation[J]. Journal of Yangtze River Scientific Research Institute，2013，30(12)：20–27.(in Chinese)) [9] 肖建国，罗永康，贾志宏，等. 平推式滑坡形成条件与防治措施[J]. 四川地质学报，2015，35(4)：596–600.(XIAO Jianguo，LUO Yongkang，JIA Zhihong，et al. Forming conditions and control of translational gliding landslide[J]. Acta Geologica Sichuan，2015，35(4)：596–600.(in Chinese)) [10] 涂园. 平推式滑坡承压水模型研究[J]. 岩石力学与工程学报，2018，37(9)：2 110–2 119.(TU Yuan. Study on the artesian water model of translational landslide[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(9)：2 110–2 119.(in Chinese)) [11] TIRANTI D，RABUFFETTI D，SALANDIN A，et al. Development of a new translational and rotational slides prediction model in Langhe hills(north-western Italy) and its application to the 2011 March landslide event[J]. Landslides，2013，10(2)：121–138. [12] MULLER J R，MARTEL S J. Numerical models of translational landslide rupture surface growth[J]. Pure and Applied Geophysics，2000，157(6/8)：1 009–1 038. [13] ZHAO Y，XU M，GUO J，et al. Accumulation characteristics，mechanism，and identification of an ancient translational landslide in China[J]. Landslides，2015，12(6)：1 119–1 130. [14] 吕美君，晏鄂川，程江涛. 近水平岩层滑坡启动的临界水柱高度分析[J]. 岩土力学，2008，29(1)：207–211.(Lü Meijun，YAN Echuan，CHENG Jiangtao. Study on critical depth of fracture water for nearly horizontal strata landslide[J]. Rock and Soil Mechanics，2008，29(1)：207–211.(in Chinese)) [15] ZHANG M，YIN Y，HUANG B. Mechanisms of rainfall-induced landslides in gently inclined red beds in the eastern Sichuan Basin，SW China[J]. Landslides，2015，12(5)：973–983. [16] 郭晓光，黄润秋，邓辉，等. 平推式滑坡多级拉陷槽形成过程及成因机制分析[J]. 工程地质学报，2013，21(5)：770–778.(GUO Xiaoguang，HUANG Runqiu，DENG Hui，et al. Formation and mechanism analysis of multi-level rift though in translational sliding landslide[J]. Journal of Engineering Geology，2013，21(5)：770–778.(in Chinese)) [17] 唐然，许强，吴斌，等. 平推式滑坡运动距离计算模型研究[J]. 岩土力学，2018，39(3)：1 009–1 019.(TANG Ran，XU Qiang，WU Bin，et al. Study on sliding distance calculation method of sub-horizontal translational landslides[J]. Rock and Soil Mechanics，2018，39(3)：1 009–1 019.(in Chinese)) [18] 俞伯汀，孙红月，尚岳全，等. 浙江下山滑坡特征及稳定性分析[J]. 岩石力学与工程学报，2006，25(增1)：2 875–2 881.(YU Boting，SUN Hongyue，SHANG Yuequan，et al. Characteristics and stability analysis of Xiashan Landslide in Zhejiang province[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.1)：2 875–2 881.(in Chinese)) [19] 王磊，李滨，高杨，等. 大型厚层崩滑体运动特征模拟研究：以重庆武隆县羊角场镇大巷危岩为例[J]. 地学前缘，2016，23(2)：251–259.(WANG Lie，LI Bin，GAO Yang，et al. Run-out prediction of large thick-bedded unstable rock：A case study of Daxiang unstable rock in Yangjiao town，Wulong county，Chongqing[J]. Geoscience Frontiers，2016，23(2)：251–259.(in Chinese)) [20] 赵建军，肖建国，向喜琼，等. 缓倾煤层采空区滑坡形成机制数值模拟研究[J]. 煤炭学报，2014，39(3)：424–429.(ZHAO Jianjun，XIAO Jianguo，XIANG Xiqiong，et al. Failure mechanism numerical simulation of mining landslide with gentle bedding coal strata[J]. Journal of China Coal Society，2014，39(3)：424–429.(in Chinese)) [21] PETLEY D N，BULMER M H，MURPHY W. Patterns of movement in rotational and translational landslides[J]. Geology，2002，30(8)：719–722. [22] SIMPSON D W. Seismicity changes associated with reservoir loading[J]. Engineering Geology，1976，10(2/4)：123–150. [23] CHAI B，JIANG B，DU J，et al. Diagrammatize movement disintegration patterns of bedding rockslide[J]. Environmental Earth Science，2016，75(4)：323.