边坡下滑推力矢量和法

doi:10.13722/j.cnki.jrme.2024.0248

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

Download: PDF (1533 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The determination of sliding thrust force has always been the key issue in the landslide prevention and control project. In order to solve the problem of large error in calculating sliding thrust force of complex polyline sliding body whose inclination angle change of adjacent slice is greater than 10°，the vector characteristics of forces are considered，the anti-slip force vector and sliding force vector are projected to the main sliding direction respectively，and the vector sum method for calculating the sliding thrust of slope is proposed. The distribution of the sliding thrust force along the sliding body and the safety factor can be obtained simultaneously. Comparing the proposed method and transfer coefficient method，the calculation results show that: for the slope with a circular sliding surface and a slope with a polyline sliding surface，the residual sliding thrust curves by the proposed method are in good agreement with those by transfer coefficient implicit method，which verified the rationality of the proposed method. Furthermore，the analysis results of a landslide with a complex polyline sliding surface in Chongqing show that the factor of safety by transfer coefficient implicit method is remarkably bigger than that by the limit equilibrium M-P method，and the relative error is 21.7%. However，for the proposed method in this paper，the relative error is only 0.3% to the M-P method，and the sensitivity calculation results show that the elastic parameters of soil have little influence on the calculation results of the proposed method. It can be seen that vector sum method has strong applicability to the landslide with complex slip surface whose inclination angles of adjacent slices are greater than 10°. This study confirms that the proposed method could provide a reliable design basis for anti-sliding slope engineering of complex polyline sliding surface.

Key words： slope engineering vector sum method landslide sliding thrust residual sliding thrust method transfer coefficient method strict limit equilibrium method

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2024.0248 OR https://rockmech.whrsm.ac.cn/EN/Y2024/V43/IS2/3808

[1]	李双平. 边坡稳定性分析方法及其应用综述[J]. 人民长江，2010，41(20)：12-15.(LI Shuangping. Overview on application of slope stability analysis method[J]. Yangtze River，2010，41(20)：12-15.(in Chinese))
[2]	中华人民共和国行业标准编写组. TB 10025－2019铁路路基支挡结构设计规范[S]. 北京：中国铁道出版社，2019.(The Professional Standards Compilation Group of People?s Republic of China. TB 10025－2019 Code for design on retaining structures of railway subgrade[S]. Beijing：China Railway Publishing House，2019.(in Chinese))
[3]	中华人民共和国国家标准编写组. GB 50021－2001 岩土工程勘察规范[S]. 北京：中国建筑工业出版社，2009.(The National Standards Compilation Group of People?s Republic of China. GB 50021－2001 Code for investigation of geotechnical engineering[S]. Beijing：China Architecture and Building Press，2009.(in Chinese))
[4]	中华人民共和国国家标准编写组. GB50330－2013建筑边坡工程技术规范[S]. 北京：中国建筑工业出版社，2013.(The National Standards Compilation Group of People?s Republic of China. GB 50330－2013 Technical code for building slope engineering[S]. Beijing：China Architecture and Building Press，2013.(in Chinese))
[5]	中华人民共和国行业标准编写组. SL 386—2007 水利水电工程边坡设计规范[S]. 北京：中国水利水电出版社，2007.(The Professional Standards Compilation Group of People?s Republic of China. SL386—2007 Design code for engineered slopes in water resources and hydropower projects[S]. Beijing：China Water Power Press，2007.(in Chinese))
[6]	中华人民共和国国家标准编写组. GB 51016—2014 非煤露天矿边坡工程技术规范[S]. 北京：中国计划出版社，2014.(The National Standards Compilation Group of People?s Republic of China. GB 51016—2014 Technical specification for slope engineering of non-coal open pit mines[S]. Beijing：China Planning Press，2014.(in Chinese))
[7]	刘素锦，郭明伟，刘才华. 边坡下滑推力计算的有限元法[J]. 岩石力学与工程学报，2017，36(增2)：4 054-4 065.(LIU Sujin，GUO Mingwei，LIU Caihua. Calculation of residual sliding force of slope based on finite element method[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(Supp.2)：4 054-4 065.(in Chinese))
[8]	时卫民，郑颖人，唐伯明，等. 边坡稳定不平衡推力法的精度分析及其使用条件[J]. 岩土工程学报，2004，26(3)：313-317.(SHI Weimin，ZHENG Yingren，TANG Boming，et al. Accuracy and application range of imbalance thrust force method for slope stability analysis[J]. Chinese Journal of Geotechnical Engineering，2004，26(3)：313-317.(in Chinese))
[9]	张鲁渝，郑颖人，时卫民. 边坡稳定分析中关于不平衡推力法的讨论[J]. 岩石力学与工程学报，2005，24(1)：177-182.(ZHANG Luyu，ZHENG Yingren，SHI Weimin. On slope stability by imbalance thrust force method[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(1)：177-182.(in Chinese))
[10]	方玉树. 滑坡稳定分析传递系数法若干问题探讨[J]. 工程地质学报，2007，15(5)：607-611.(FANG Yushu. Some problems in transmitting coefficient method for landslide stability analysis[J]. Journal of Engineering Geology，2007，15(5)：607-611.(in Chinese))
[11]	郭海强，李安洪，徐骏，等. 基于可靠度的传递系数法显式与隐式对应关系[J]. 岩土力学，2021，42(7)：2 015-2 022.(GUO Haiqiang，LI Anhong，XU Jun，et al. Study on corresponding relationship between explicit and implicit solutions in slope stability analysis based on reliability[J]. Rock and Soil Mechanics，2021，42(7)：2 015-2 022.(in Chinese))
[12]	徐青，陈士军，陈胜宏. 滑坡稳定分析剩余推力法的改进研究[J]. 岩土力学，2005，26(3)：465-470.(XU Qing，CHEN Shijun，CHEN Shenghong. Study on the improved residual thrust method for landslide stability analysis[J]. Rock and Soil Mechanics，2005，26(3)：465-470.(in Chinese))
[13]	童广勤，苏爱军. 改进的传递系数法[J]. 长江科学院院报，2010，27(6)：43-48.(TONG Guangqin，SU Aijun. Improved transfer coefficient method[J]. Journal of Yangtze River Science Research Institute，2010，27(6)：43-48.(in Chinese))
[14]	何木，赵其华. 基于方向角修正的改进传递系数法[J]. 地质灾害与环境保护，2010，21(1)：79-82.(HE Mu，ZHAO Qihua. Improved transfer coefficient method based on correcting direction angle[J]. Journal of Geological Hazards and Environment Preservation，2010，21(1)：79-82.(in Chinese))
[15]	李亚军，王东英. 基于强度参数非等比例相关折减的边坡下滑推力求解[J]. 水利与建筑工程学报，2016，14(5)：45-49.(LI Yajun，WANG Dongying. The solution of sliding thrust based on non-proportional associated reduction[J]. Journal of Water Resources and Architectural Engineering，2016，14(5)：45-49.(in Chinese))
[16]	曾韬睿，王林峰，朱洪州. 基于修正的传递系数法的粉土质边坡冻融稳定性分析[J]. 科学技术与工程，2019，19(9)：206-213.(ZENG Taorui，WANG Linfeng，ZHU Hongzhou. Stability analysis of freeze-thaw silty soil slope based on modified transfer coefficient method[J]. Science Technology and Engineering，2019，19(9)：206-213.(in Chinese))
[17]	赵尚毅，郑颖人，敖贵勇. 考虑桩反作用力和设计安全系数的滑坡推力计算方法—传递系数隐式解法[J]. 岩石力学与工程学报，2016，25(8)：1 668-1 676.(ZHAO Shangyi，ZHENG Yingren，AO Guiyong. Calculation method of landslide thrust considering the reaction force of piles and factor of safety-implicit solution using transfer coefficient[J]. Chinese Journal of Rock Mechanics and Engineering，2016，25(8)：1 668-1 676.(in Chinese))
[18]	李焕焕，倪万魁，陈树峰，等. 滑坡推力与安全系数计算方法适用性研究[J]. 重庆交通大学学报：自然科学版，2022，41(3)：87-92.(LI Huanhuan，NI Wankui，CHEN Shufeng，et al. Applicability study on calculation method of landslide thrust and safety factor[J]. Journal of Chongqing Jiaotong University：Natural Science，2022，41(3)：87-92.(in Chinese))
[19]	刘素锦，郭明伟，李春光. 三维边坡整体主滑方向的确定[J]. 岩土力学，2018，39(增2)：37-44.(LIU Sujin，GUO Mingwei，LI Chunguang. Determination of main sliding direction for three-dimensional slope[J]. Rock and Soil Mechanics，2018，39(Supp.2)：37-44.(in Chinese))
[20]	TAN X J，CHEN W Z，LIU H Y，et al. A unified model for frost heave pressure in the rock with a penny-shaped fracture during freezing[J]. Cold Regions Science and Technology，2018，(153)：1-9.
[21]	ZHOU Y，TAN X J，YANG D S，et al. A numerical method to consider the interaction between multiple fractures in frozen rocks based on XFEM[J]. Computers and Geotechnics，2024，(69)：106240.
[22]	李建明. 变倾角传递系数法及其在水电站滑坡分析中的应用[J]. 水电站设计，2010，26(4)：13-15.(LI Jianming. Variable inclination transfer coefficient method and its application in hydropower station landslide analysis[J]. Hydropower Station Design，2010，26(4)：13-15.(in Chinese))
[23]	易朋莹，唐红梅. 对用传递系数法求滑坡稳定系数的商榷——以万州太白岩中东段欠稳定斜坡为例[J]. 重庆交通学院学报，2004，23(1)：78-80.(YI Pengying，TANG Hongmei. Discussion about calculating the stabilization coefficient through transferring coefficient method——Wanzhou Taibaiyan middle east segment unstable slopes as the example[J]. Journal of Chongqing Jiaotong University，2004，23(1)：78-80.(in Chinese))
[24]	易朋莹，邓时义，吕涛. 传递系数法中条块间应力的探讨[J]. 工程地质学报，2012，20(04)：478-482.(YI Pengying，DENG Shiyi，LV Tao. Discussion of inter-slice action in transmitting coefficient method[J]. Journal of Engineering Geology，2012，20(4)：478-482.(in Chinese))