基于极限平衡法和强度折减法的某滑坡体稳定性分析
Stability Analysis of a Landslide Based on Limit Equilibrium Method and Strength Reduction Method
DOI: 10.12677/ME.2020.83029, PDF,    国家自然科学基金支持
作者: 张 苗, 姚多喜, 张 元, 车小兵, 王秉文：安徽理工大学地球与环境学院，安徽 淮南
关键词: 滑坡；理正软件；Janbu法；FLAC3D；强度折减法；稳定性分析；Landslide； Lizheng Software； Janbu； FLAC3D； Strength Reduction Method Stability Analysis
摘要: 滑坡的发生造成严重财产损失和人员伤亡，为了确保斜坡工程的安全施工和准确分析斜坡的稳定性，必须对滑坡的稳定性进行仔细的分析。分别运用极限平衡法和强度折减法计算斜坡的安全系数，对比分析滑坡体的稳定性。采用理正软件和FLAC3D作为计算工具，建立滑坡体的计算模型，运用简化Janbu法和强度折减法对其安全系数进行计算，依据《滑坡防治工程勘查规范(GBT32864-2016)》对其稳定性进行了评价。再用FLAC3D用强度折减法计算得出稳定性系数，验证所得安全系数的可靠性。研究了铜陵某滑坡体的稳定性，研究结果表明：极限平衡法和强度在折减法的斜坡稳定性计算分析上结果一致，该滑坡体整体稳定性较好。
Abstract: The occurrence of landslide causes serious property loss and casualties. In order to ensure the safe construction of slope engineering and accurately analyze the stability of slope, the stability of landslide must be carefully analyzed. In this paper, the limit equilibrium method and the strength reduction method are used to calculate the safety factor of the slope, and the stability of the land-slide body is compared and analyzed. The calculation model of landslide mass is established by using Lizheng software and FLAC3D as calculation tools. The safety factor is calculated by simplified Janbu method and strength reduction method, and its stability is evaluated according to the code for investigation of landslide prevention engineering (gbt32864-2016). Then FLAC3D is used to calculate the stability coefficient by strength reduction method to verify the reliability of the safety coefficient. The stability of a landslide mass in Tongling is studied. The results show that the calculation and analysis results of limit equilibrium method and strength in reduction method are consistent, and the overall stability of the landslide mass is good.
文章引用：张苗, 姚多喜, 张元, 车小兵, 王秉文. 基于极限平衡法和强度折减法的某滑坡体稳定性分析[J]. 矿山工程, 2020, 8(3): 213-220. https://doi.org/10.12677/ME.2020.83029

参考文献

[1] 章广成. 水位变化对滑坡稳定性的影响研究[D]: [硕士学位论文]. 武汉: 中国地质大学, 2005.
[2] Duncan, J.M. (1996) State of the Art: Limit Equilibrium and Finite-Element Analysis of Slopes. Journal of Geotechnical Engineering, 22, 577-596. [Google Scholar] [CrossRef] 
[3] Hungr, O. (1987) An Extension of Bishop’s Simplified Method of Slope Stability Analysis to Three-Dimensions. Geotechnique, 37, 113-117. [Google Scholar] [CrossRef] 
[4] Hungr, O., Salgado, F.M. and Byrne, P.M. (1989) Evaluation of a Three-Dimensional Method of Slope Stability Analysis. Canadian Geotechnical Journal, 26, 679-686. [Google Scholar] [CrossRef] 
[5] Jing, L. (2003) A Review of Techniques Advances and Outstanding Issues in Numerical Modeling for Rock Mechanics and Rock Engineering. International Journal of Rock Mechanics and Mining Sciences, 40, 283-353. [Google Scholar] [CrossRef] 
[6] 赵尚毅, 郑颖人, 时卫民, 等. 用有限元强度折减法求边坡稳定安全系数[J]. 岩士工程学报, 2002, 24(3): 343-346.
[7] 刘金龙, 栾茂田, 赵少飞, 等. 关于强度折减有限元方法中边坡失稳判据的讨论[J]. 岩土力学, 2005, 26(8): 1345-1348.
[8] 红保, 曹平, 林杭, 赵延林. 采用边坡稳定性强度折减法分析弹性应变能突变判据[J]. 中南大学学报(自然科学版), 2009, 40(4): 1054-1058.
[9] 孙聪, 李春光, 郑宏, 等. 基于软化特性的三维边坡强度折减有限元分析[J]. 岩土力学, 2014, 35(SI): 407-413.
[10] 年廷凯, 张克利, 刘红帅, 等. 基于强度折减法的三维边坡稳定性与破坏机制[J]. 吉林大学学报(地球科学版), 2013, 43(1): 178-185.
[11] 宁宇, 徐卫亚, 郑文棠. 应用离散元强度折减对复杂边坡进行稳定性分析[J]. 岩土力学, 2007, 28(SI): 569-574.
[12] 李志刚, 曹磊. 严格Janbu法不收敛原因及其改进的探讨[J]. 岩土力学, 2008, 29(4): 1053-1056.
[13] 蔡志远, 马石城, 蔡志坚. 基于C语言程序的简布法边坡稳定分析[J]. 长沙大学学报, 2012, 26(5): 20-22+25.
[14] 许冬丽, 於汝山. 三峡库区新集镇典型高切边坡破坏机理研究[J]. 路基工程, 2010(1): 42-44.
[15] 徐文杰, 胡瑞林, 岳中琦, 谭儒蛟, 李仁江, 曾如意. 虎跳峡龙蟠右岸边坡稳定性的数值模拟[J]. 岩土工程学报, 2006, 28(11): 1996-2004.
[16] 蒋鑫, 邱延峻, 凌建明. 强度折减法软件在评价边坡稳定性上之比较[J]. 地下空间与工程学报, 2008, 4(2): 302-309.
[17] 黄鸿, 王遐莽. 高速公路边坡稳定性FLAC3D分析案例[J]. 公路交通科技(应用技术版), 2014, 10(1): 83-85.
[18] 梁艳, 李同春. 边坡稳定分析有限元强度折减法失稳判据探讨[J]. 三峡大学学报(自然科学版), 2012, 34(2): 28-31.

为你推荐