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基于物理模型试验的多层滑带滑坡变形演化特征

杨登芳 胡新丽 徐楚 王强 牛李飞 张杰豪

杨登芳, 胡新丽, 徐楚, 王强, 牛李飞, 张杰豪. 基于物理模型试验的多层滑带滑坡变形演化特征[J]. 地质科技通报, 2022, 41(2): 300-308. doi: 10.19509/j.cnki.dzkq.2021.0069
引用本文: 杨登芳, 胡新丽, 徐楚, 王强, 牛李飞, 张杰豪. 基于物理模型试验的多层滑带滑坡变形演化特征[J]. 地质科技通报, 2022, 41(2): 300-308. doi: 10.19509/j.cnki.dzkq.2021.0069
Yang Dengfang, Hu Xinli, Xu Chu, Wang Qiang, Niu Lifei, Zhang Jiehao. Deformation and evolution characteristics of landslides with multiple sliding zones based on physical model test[J]. Bulletin of Geological Science and Technology, 2022, 41(2): 300-308. doi: 10.19509/j.cnki.dzkq.2021.0069
Citation: Yang Dengfang, Hu Xinli, Xu Chu, Wang Qiang, Niu Lifei, Zhang Jiehao. Deformation and evolution characteristics of landslides with multiple sliding zones based on physical model test[J]. Bulletin of Geological Science and Technology, 2022, 41(2): 300-308. doi: 10.19509/j.cnki.dzkq.2021.0069

基于物理模型试验的多层滑带滑坡变形演化特征

doi: 10.19509/j.cnki.dzkq.2021.0069
基金项目: 

中央高校基本科研业务费专项资金项目 CUGCJ1701

国家重点研发计划项目 2017YFC1501302

国家自然科学基金重点项目 41630643

详细信息
    作者简介:

    杨登芳(1996-), 女, 现正攻读土木工程专业硕士学位, 主要从事地质灾害防治研究工作。E-mail: 1308173834@qq.com

    通讯作者:

    胡新丽(1968-), 女, 教授, 博士生导师, 主要从事岩土工程数值模拟与稳定性评价方面的研究工作。E-mail: huxinli@cug.edu.cn

  • 中图分类号: P642.22

Deformation and evolution characteristics of landslides with multiple sliding zones based on physical model test

  • 摘要: 滑坡变形演化特征一直是滑坡灾害预测与防治领域急需解决的关键问题, 但对于多层滑带滑坡的变形演化特征却少有研究。以物理模型试验为手段建立了三层滑带滑坡物理试验模型, 完成了多层滑带滑坡变形演化全过程的模拟。基于PIV技术获取坡表位移数据, 通过柔性测斜仪监测滑坡深部位移, 同时布设土压力盒获取滑坡内部土压力的变化情况, 实现了多层滑带滑坡演化过程多参量数据分析。试验结果表明, 多层滑带滑坡破坏过程可分为初始、等速、加速和破坏4个阶段。不同破坏阶段滑坡的主要变形区域不同, 下层滑体受到上层滑体牵引作用, 在重力和推力作用下滑坡变形逐渐向浅层发展。变形过程中滑坡应力逐渐向滑带集中, 滑坡推力沿埋深方向呈多级梯形分布。加速变形阶段滑带处应力迅速增大, 滑坡体内产生多层应力集中带, 滑带位置推力变化与滑坡位移显著相关。

     

  • 图 1  模型框架图

    M1.浅层滑体; M2.中层滑体; M3.深层滑体; S1.浅层滑带; S2.中层滑带; S3.深层滑带

    Figure 1.  Frame diagram of the landslide model

    图 2  推力设计加载曲线

    Figure 2.  Loading curve of thrust design

    图 3  监测布置

    Figure 3.  Layout of sliding body detection

    图 4  典型监测点与加载的时间序列

    Figure 4.  Relationship between typical monitoring points and loading time sequence

    图 5  试验过程宏观变形

    Figure 5.  Curve of rate accumulative displacement

    图 6  累计位移速率曲线

    Figure 6.  Curve of rate accumulative displacement

    图 7  深部累计位移曲线

    Figure 7.  Curve of deep accumulative displacement

    图 8  相对位移-时间曲线

    Figure 8.  Curve of relative displacement -time

    图 9  相对位移速率曲线

    Figure 9.  Curve of relative displacement rate

    图 10  3层滑带滑坡后缘、中部和前部土压力深度变化曲线(括号中为推力)

    Figure 10.  Depth variation curve of earth pressure at trailing edge, middle and front

    图 11  单层滑带滑坡后缘、中部和前缘土压力深度变化[30]

    Figure 11.  Variation in earth pressure depth in the rear, middle and front of a single-layer sliding zone landslide

    图 12  不同阶段土压力分布云图

    Figure 12.  Nephogram of earth pressure distribution in different stages

    表  1  模型材料基本参数

    Table  1.   Basic parameters of model materials

    容重/(g·cm-3) 黏聚力/kPa 摩擦角/(°) 含水率/%
    滑体 1.69 20.6 21.8 8
    滑带 1.63 1.2 20.2 8
    下载: 导出CSV
  • [1] 黄强盛, 尉学勇. 思南东互通管理区大型滑坡变形机理分析与治理措施[J]. 路基工程, 2013, 39(5): 171-175. doi: 10.3969/j.issn.1003-8825.2013.05.042

    Huang Q S, Wei X Y. Analysis of deformation mechanism and treatment measures of large-scale landslide in Sinan east interchange management area[J]. Roadbed Engineering, 2013, 39(5): 171-175(in Chinese with English abstract). doi: 10.3969/j.issn.1003-8825.2013.05.042
    [2] 于贵. 向家坡大型复杂滑坡的坡体结构和变形机理[J]. 工程勘察, 2009, 37(12): 49-53. https://www.cnki.com.cn/Article/CJFDTOTAL-GCKC200912010.htm

    Yu G. Slope structure and deformation mechanism of Xiangjiapo large-scale complex landslide[J]. Engineering Investigation, 2009, 37(12): 49-53(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-GCKC200912010.htm
    [3] 向家松, 文宝萍, 陈明, 等. 结构复杂滑坡活动对库水位变化的响应特征: 以三峡库区柴湾滑坡为例[J]. 水文地质工程地质, 2017, 44(4): 71-77, 84. https://www.cnki.com.cn/Article/CJFDTOTAL-SWDG201704011.htm

    Xiang J S, Wen B P, Chen M, et al. Response characteristics of complex landslide activities to reservoir water level changes: A case study of Chaiwan landslide in the Three Gorges Reservoir area[J]. Hydrogeology and Engineering Geology, 2017, 44(4): 71-77, 84(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-SWDG201704011.htm
    [4] 朱世煜, 王宝军, 施斌, 等. 基于GIS的马家沟滑坡稳定性计算与分区[J]. 工程地质学报, 2014, 22(6): 1187-1193. https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201406028.htm

    Zhu S Y, Wang B J, Shi B, et al. GIS-based stability calculation and zoning of Majiagou landslide[J]. Journal of Engineering Geology, 2014, 22(6): 1187-1193(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-GCDZ201406028.htm
    [5] 胡新丽, 唐辉明, 李长冬, 等. 基于参数反演的保扎滑坡变形破坏机理研究[J]. 工程地质学报, 2011, 19(6): 795-801. doi: 10.3969/j.issn.1004-9665.2011.06.001

    Hu X L, Tang H M, Li C D, et al. Research on deformation and failure mechanism of Baozha landslide based on parameter back analysis[J]. Journal of Engineering Geology, 2011, 19(6): 795-801(in Chinese with English abstr act). doi: 10.3969/j.issn.1004-9665.2011.06.001
    [6] 邬爱清, 丁秀丽, 李会中, 等. 非连续变形分析方法模拟千将坪滑坡启动与滑坡全过程[J]. 岩石力学与工程学报, 2006, 25(7): 1297-1303. doi: 10.3321/j.issn:1000-6915.2006.07.001

    Wu A Q, Ding X L, Li H Z, et al. The discontinuous deformation analysis method simulates the start of the Qianjiangping landslide and the whole process of the landslide[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(7): 1297-1303(in Chinese with English abstract). doi: 10.3321/j.issn:1000-6915.2006.07.001
    [7] Qi S W, Yan F Z, Wang S J, et al. Characteristics, mechanism and development tendency of deformation of Maoping landslide after commission of Geheyan reservoir on the Qingjiang River, Hubei Province China[J]. Engineering Geology, 2006, 86(1): 37-51. doi: 10.1016/j.enggeo.2006.04.004
    [8] Xie M L, Zhao Z W H, Ju N P, et al. Landslide evolution assessment based on InSAR and real-time monitoring of a large reactivated landslide, Wenchuan, China[J]. Engineering Geology, 2020, 277: 105781. doi: 10.1016/j.enggeo.2020.105781
    [9] Lin C H, Lin C H. Evolution of the large landslide induced by Typhoon Morakot: A case study in the Butangbunasi River, southern Taiwan using the discrete element method[J]. Engineering Geology, 2015, 197: 172-187. doi: 10.1016/j.enggeo.2015.08.022
    [10] Zheng Y, Chen C, Liu T, et al. Slope failure mechanisms in dipping interbedded sandstone and mudstone revealed by model testing and distinct-element analysis[J]. Bulletin of Engineering Geology and the Environment, 2018, 77(1): 49-68. doi: 10.1007/s10064-017-1007-6
    [11] 宋英杰, 陈文强, 李长冬. 抗滑桩加固后边坡稳定性评价与桩位优化研究进展[J]. 安全与环境工程, 2016, 23(5): 43-49, 54. https://www.cnki.com.cn/Article/CJFDTOTAL-KTAQ201605008.htm

    Song Y J, Chen W Q, Li C D. Research progress of the stability evaluation of slope reinforced with stabilizing piles and optimization of plie location[J]. Safety and Environmental Engineering, 2016, 23(5): 43-49, 54(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-KTAQ201605008.htm
    [12] 黄少平, 晏鄂川, 尹晓萌, 等. 不同临空条件的层状反倾岩质边坡倾倒变形几何特征参数影响规律[J]. 地质科技通报, 2021, 40(1): 159-165. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ202101017.htm

    Huang S P, Yan E C, Yin X M, et al. Action law of geometrical characteristics parameters in the anti-dip rock slopes under different free face condition[J]. Bulletin of Geological Science and Technology, 2021, 40(1): 159-165(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ202101017.htm
    [13] Zhang S, Zhu Z, Qi S, et al. Deformation process and mechanism analyses for a planar sliding in the Mayanpo massive bedding rock slope at the Xiangjiaba Hydropower Station[J]. Landslides, 2018, 15(10): 2061-2073. doi: 10.1007/s10346-018-1041-x
    [14] 王旋, 胡新丽, 周昌, 等. 基于物理模型试验的滑坡-抗滑桩位移场变化特征[J]. 地质科技通报, 2020, 39(4): 103-108. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ202004013.htm

    Wang X, Hu X L, Zhou C, et al. Model on the displacement field characteristics of the landslide stablilizing piles[J]. Bulletin of Geological Science and Technology, 2020, 39(4): 103-108(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ202004013.htm
    [15] Yang B B, Yin K L, Xiao T, et al. Annual variation of landslide stability under the effect of water level fluctuation and rainfall in the Three Gorges Reservoir, China[J]. Environmental Earth Sciences, 2017, 76(16): 546.
    [16] 杨涛, 周德培, 罗阳明. 考虑层间作用的多层滑坡分析方法[J]. 岩石力学与工程学报, 2005, 24(7): 1129-1133. doi: 10.3321/j.issn:1000-6915.2005.07.007

    Yang T, Zhou P D, Luo Y M. A new method considering inter-layer interactions for analysis of multi-layers landslide[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(7): 1129-1133(in Chinese with English abstract). doi: 10.3321/j.issn:1000-6915.2005.07.007
    [17] 尹志光, 俸锦福, 刘腊美, 等. 向家山滑坡机理及稳定性研究[J]. 地下空间与工程学报, 2007, 3(1): 167-171. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE200701036.htm

    Yin Z G, Feng J F, Liu L M, et al. Study on the mechanism and stability of Xiangjiashan landslide[J]. Chinese Journal of Underground Space and Engineering, 2007, 3(1): 167-171(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-BASE200701036.htm
    [18] 陈力华, 靳晓光, 刘新荣, 等. 多滑面滑坡稳定性分析[J]. 地下空间与工程学报, 2008, 4(6): 1138-1141. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE200806031.htm

    Chen L H, Jin X G, Liu X R, et al. Stability analysis of landslides with multi slip surface[J]. Chinese Journal of Underground Space and Engineering, 2008, 4(6): 1138-1141(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-BASE200806031.htm
    [19] Lourenco S D N, Sassa K, Fukuoka H. Failure process and hydrologic response of a two layer physical model: Implications for rainfall-induced landslides[J]. Geomorphology, 2005, 73(1): 115-130.
    [20] 倪卫达, 唐辉明, 胡新丽, 等. 黄土坡临江I号崩滑体变形及稳定性演化规律研究[J]. 岩土力学, 2013, 34(10): 2961-2970. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201310031.htm

    Ni W D, Tang H M, Hu X L, et al. Research on deformation and stability evolution law of Huangtupo riverside slump-mass No. 1[J]. Rock and Soil Mechanics, 2013, 34(10): 2961-2970(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201310031.htm
    [21] Fan L, Zhang G C, Li B, et al. Deformation and failure of the Xiaochatou landslide under rapid drawdown of the reservoir water level based on centrifuge tests[J]. Bulletin of Engineering Geology and the Environment, 2017, 76(3): 891-900. doi: 10.1007/s10064-016-0895-1
    [22] Song J, Fan Q Q, Feng T G, et al. A multi-block sliding approach to calculate the permanent seismic displacement of slopes[J]. Engineering Geology, 2019, 255: 48-58. doi: 10.1016/j.enggeo.2019.04.012
    [23] 陈德龙, 杨长明, 王恒. 某岩质滑坡多层滑带勘查方法应用研究[J]. 工程技术研究, 2020, 5(7): 107-108. doi: 10.3969/j.issn.1671-3818.2020.07.048

    Chen D L, Yang C M, Wang H. Research on application of exploration method for multilayer slip zone of a rock landslide[J]. Engineering Technology and Application, 2020, 5(7): 107-108(in Chinese with English abstract). doi: 10.3969/j.issn.1671-3818.2020.07.048
    [24] 贺可强. 大型堆积层滑坡的多层滑移规律分析[J]. 金属矿山, 1998, 26(7): 15-18. https://www.cnki.com.cn/Article/CJFDTOTAL-JSKS807.004.htm

    He K Q. An analysis on the multilayered slide law of the large-scale accumulative landslides[J]. Metal Mine, 1998, 26(7): 15-18(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-JSKS807.004.htm
    [25] 夏浩, 雍睿, 马俊伟. 推移式滑坡模型试验推力加载方法的研究[J]. 长江科学院院报, 2015, 32(1): 112-116. doi: 10.3969/j.issn.1001-5485.2015.01.023

    Xia H, Yong R, Ma J W. Method of driving force loading in model test of landslide caused by thrust load[J]. Journal of Yangtze River Scientific Research Institute, 2015, 32(1): 112-116(in Chinese with English abstract). doi: 10.3969/j.issn.1001-5485.2015.01.023
    [26] 铁道部第二勘测设计院. 抗滑桩设计与计算[M]. 北京: 中国铁道出版社, 1983.

    The Second Survey and Design Institute of the Ministry of Railways. Design and calculation of anti-slide piles[M]. Beijing: China Railway Publishing House, 1983(in Chinese).
    [27] 曹玲, 罗先启, 程圣国. 千将坪滑坡物理模型试验相似材料研究[J]. 三峡大学学报: 自然科学版, 2007, 29(1): 37-39, 45. https://www.cnki.com.cn/Article/CJFDTOTAL-WHYC200701008.htm

    Cao L, Luo X Q, Cheng S G. Research on similar material of physical model for Qianjiangping landslide[J]. Journzl of China Three Gorges University: Natural Sciences, 2007, 29(1): 37-39, 45(in Chinese with English abstract). https://www.cnki.com.cn/Article/CJFDTOTAL-WHYC200701008.htm
    [28] 李瑞林, 石高鹏, 李军. 模型试验土体相似材料关键技术及研究现状[J]. 能源技术与管理, 2012, 18(4): 1-2, 5. doi: 10.3969/j.issn.1672-9943.2012.04.001

    Li R L, Shi G P, Li J. Key technologies and research status of soil-like materials in model tests[J]. Energy Technology and Management, 2012, 18(4): 1-2, 5(in Chinese with English abstract). doi: 10.3969/j.issn.1672-9943.2012.04.001
    [29] Baba H O, Peth S. Large scale soil box test to investigate soil deformation and creep movement on slopes by particle image velocimetry(PIV)[J]. Soil and Tillage Research, 2012, 125: 38-43. doi: 10.1016/j.still.2012.05.021
    [30] He C C, Hu X L, Tan D D, et al. Response of a landslide to reservoir impoundment in model tests[J]. Engineering Geology, 2018, 247: 84-93. doi: 10.1016/j.enggeo.2018.10.021
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