基岩面倾角对沿其滑动的土坡后缘裂缝特征的影响研究

doi:10.3724/1000-6915.jrme.2024.0672

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

Download: PDF (3616 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The position of the trailing edge crack is often the location of the boundary of the trailing edge in a soil landslide. This paper aims to explore the effect of bedrock-surface inclination on the characteristics of the trailing edge crack in a soil landslide sliding along the bedrock surface. Twelve laboratory tests on trailing edge cracks in soil landslides along the bedrock surface are first conducted. A theoretical approach for calculating the position of the trailing edge crack is then proposed. The theoretical approach is finally applied to calculate the positions of trailing edge cracks in twelve laboratory landslides and two field landslides. The results show that the inclinations of the trailing edge cracks in the twelve laboratory tests range from 63.7° to 78.1°. As the bedrock-surface inclination increases，the failure mode of the trailing edge crack transitions from predominantly tensile failure to predominantly shear failure，resulting in a corresponding decrease in the inclination of the trailing edge crack. The proposed theoretical approach treats the landslide as a stressed body，with the slip surface divided into two parts：the bottom slip surface and the steeper trailing edge crack surface. The bottom slip surface exhibits shear failure. In contrast，the trailing edge crack surface exhibits tensile failure and shear failure at positions near and far from the slope surface，respectively. For both laboratory and field landslides，the overall deviation of the trailing edge crack positions calculated by the theoretical approach from the measured positions is not significant. The results of this study help to accurately locate the trailing edge crack in the landslide.

Key words： slope engineering soil landslide trailing edge crack bedrock surface tensile failure shear failure slip surface

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	RAO Yunkang1
	2
	YANG Tao2
	CHEN Huailin2
	ZHANG Zhe2

Cite this article:

RAO Yunkang1,2,YANG Tao2, et al. Effect of bedrock-surface inclination on characteristics of trailing edge crack in soil landslide sliding along the bedrock surface#br#[J]. , 2025, 44(4): 989-1000.

URL:

https://rockmech.whrsm.ac.cn/EN/10.3724/1000-6915.jrme.2024.0672 OR https://rockmech.whrsm.ac.cn/EN/Y2025/V44/I4/989

]	李鹏，苏生瑞，马驰，等. 堆积层-基岩接触面滑坡的形成机制——以祖师庙滑坡为例[J]. 吉林大学学报：地球科学版，2017，47(5)：1 471-1 479.(LI Peng，SU Shengrui，MA Chi，et al. Formation mechanism of landslides with accumulationlayer-bedrock contact surface：taking zushimiao landslide as an example[J]. Journal of Jilin University：Earth Science，2017，47(5)：1 471-1 479.(in Chinese))
[2]	吴博，赵法锁，王雷，等. 黄土-基岩滑坡滑带土特性及其演化过程[J]. 煤田地质与勘探，2018，46(4)：129-134.(WU Bo，ZHAO Fasuo，WANG Lei，et al. Physical and mechanical properties of slip zone soil in loess-bedrock landslides and its evolutionary process[J]. Coal Geology and Exploration，2018，46(4)：129-134.(in Chinese))
[3]	饶云康，富海鹰，杨涛. 堆积层滑坡偏角比预警模型[J]. 岩石力学与工程学报，2024，43(10)：2 540-2 551.(RAO Yunkang，FU Haiying，YANG Tao. Early warning model of deflection angle ratio for accumulation landslides[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(10)：2 540-2 551.(in Chinese))
[4]	谭新平，徐张建. 陕北环境地质条件脆弱区黄土滑坡的勘察与治理[J]. 工程地质学报，2007，15(增1)：507-512.(TAN Xinping，XU Zhangjian. Investigation and remediation of loess slides in geo-environmentally fragile zones of Northern Shaanxi[J]. Journal of Engineering Geology，2007，15(Supp.1)：507-512.(in Chinese))
[5]	王国强，关峰，吴道祥，等. 宁国市中溪滑坡成因及稳定性分析[J]. 煤田地质与勘探，2004，(5)：43-46.(WANG Guoqiang，GUAN Feng，WU Daoxiang，et al. Stability and forming mechanism of the Zhongxi landslide in Ningguo City[J]. Coal Geology and Exploration，2004，(5)：43-46.(in Chinese))
[6]	李麟玮，吴益平，苗发盛，等. 基于变分模态分解与GWO-MIC-SVR模型的滑坡位移预测研究[J]. 岩石力学与工程学报，2018，37(6)：1 395-1 406.(LI Linwei，WU Yiping，MIAO Fasheng，et al. Displacement prediction of landslides based on variational mode decomposition and GWO-MIC-SVR model[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(6)：1 395-1 406.(in Chinese))
[7]	RAO Y，CHEN H，YANG T，et al. Experiments and analytical method for landslide scarp caused by water-induced weakening of basal sliding zone[J]. Acta Geotechnica，2024，(19)：5 873-5 890.
[8]	张强，郑艳妮，贾朝军，等. 复杂水库调度及降雨条件下堆积体滑坡离心试验研究[J]. 岩石力学与工程学报，2023，42(10)：2 427-2 440.(ZHANG Qiang，ZHENG Yanni，JIA Chaojun，et al. Centrifugal experimental study on accumulation body landslides under complex reservoir operation and rainfall conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2023，42(10)：2 427-2 440.(in Chinese))
[9]	李江，许强，张继，等. 横向拖拽式滑坡形成机制及三维稳定性评价研究[J]. 岩石力学与工程学报，2023，42(增2)：4 152-4 161.(LI Jiang，XU Qiang，ZHANG Ji，et al. Study on formation mechanism and three-dimensional stability evaluation of lateral drag landslide[J]. Chinese Journal of Rock Mechanics and Engineering，2023，42(Supp.2)：4 152-4 161.(in Chinese))
[10]	RAO Y，ZHANG Z，YANG T，et al. A new theoretical model to locate the back scarp in landslides caused by strength reduction in slip zone soil[J]. Computers and Geotechnics，2023，159：105410.
[11]	RAO Y，CHEN H，YANG T，et al. Positions of rear scarps in retrogressive shallow soil landslide triggered by water weakening[J]. Bulletin of Engineering Geology and the Environment，2023，82(9)：367.
[12]	SPENCER E，TECH M S C. A method of analysis of the stability of embankments assuming parallel inter-slice forces[J]. Geotechnique，1967，17(1)：11-26.
[13]	朱大勇，李焯芬，姜弘道，等. 基于滑面正应力修正的边坡安全系数解答[J]. 岩石力学与工程学报，2004，23(16)：2 788-2 791.(ZHU Dayong，LEE C F，JIANG Hongdao，et al. Solution of slope safety factor by modifying normal stresses over slip surface[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(16)：2 788-2 791.(in Chinese))
[14]	MORGENSTERN N R，PRICE V E. The analysis of the stability of general slip surfaces[J]. Geotechnique，1965，15(1)：79-93.
[15]	郭明伟，李春光，刘艳章，等. 对《“矢量和法”抗滑稳定计算模型的力学概念错误》一文的回应[J]. 岩土工程学报，2022，44(9)：1 760-1 762.(GUO Mingwei，LI Chunguang，LIU Yanzhang，et al. Reply to “Mechanical concept errors in anti-sliding stability computational model of vector sum method”[J]. Chinese Journal of Geotechnical Engineering，2022，44(9)：1 760-1 762.(in Chinese))
[16]	雷军，肖世国. 考虑滑体中锚拉力扩散效应的锚固边坡稳定性分析方法[J]. 岩土工程学报，2019，41(9)：1 724-1 730.(LEI Jun，XIAO Shiguo. Stability analysis method for anchored slopes considering stress dispersion effect in sliding mass due to anchor tensile forces[J]. Chinese Journal of Geotechnical Engineering，2019，41(9)：1 724-1 730.(in Chinese))
[17]	SUN G，CHENG S，JIANG W，et al. A global procedure for stability analysis of slopes based on the Morgenstern-Price assumption and its applications[J]. Computers and Geotechnics，2016，80：97-106.
[18]	GUO J，XU M，ZHAO Y. Study on reactivation and deformation process of XierGuazi ancient-landslide in Heishui Reservoir of Southwestern China[C]// 12th International IAEG Congress. Torino，Italy：Springer，2014：1 135-1 141.
[19]	GUO J，XU M，ZHANG Q，et al. Reservoir regulation for control of an ancient landslide reactivated by water level fluctuations in Heishui River，China[J]. Journal of Earth Science，2020，31(6)：1 058-1 067.
[20]	杨文璐. 黄土丘陵区滑坡空间分布规律及稳定性评价——以志丹县为例[硕士学位论文][D]. 西安：西北大学，2019.(YANG Wenlu. The spatial distribution and stability evaluation of landslides in loess hilly region——Taking Zhidan County as an example[M. S. Thesis][D]. Xi?an：Northwest University，2019.(in Chinese))