强降雨诱发作用下岩溶山体滑坡机制研究——以关岭滑坡为例

doi:10.13722/j.cnki.jrme.2022.0879

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摘要强降雨引起的岩溶地下水升降波动对我国西南岩溶山区的大型滑坡具有重要影响。为了明确的强降雨诱发作用下岩溶山体滑坡的机制，以关岭滑坡为例，结合现场野外调查，岩溶发育现象以及渗流场特征分析了关岭滑坡的成因机制。研究发现：在强降雨条件下，滑源区后部强烈的侧向补给抬高了地下水位，于基岩裂隙水区的坡体内形成高压水头，并作用于滑源区内的潜在软弱结构面上诱发了滑坡失稳，由此提出“岩溶山区二元岩体结构滑坡”的失稳模式。通过山体内地下水位线解析解耦合剩余推力法分析了多工况下滑体的稳定性，理论计算结果显示：岩溶管道介质的平均直径以及降雨强度对坡体稳定性有较大影响。当岩溶管道平均直径取值在0.15 m及以上时，坡体会于极端降雨工况下发生失稳。推导的岩溶山体地下水位线计算公式及稳定性分析方法可为岩溶山体滑坡的稳定性评价和防治工程提供有益参考。

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	李江山1
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	李滨2
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	殷跃平3
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	崔芳鹏1
	高杨2
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	万佳威2
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	李军2
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关键词 ：边坡工程, 关岭滑坡, 岩溶管道, 地下水位, 解析解, 失稳模式

Abstract：The dynamic change of karst groundwater level induced by heavy rainfall has an important effect on large landslides in karst mountainous areas in southwest China. In order to clarify the mechanism of karst landslides induced by heavy rainfall，taking Guanling landslide as an example，combined with field investigation，karst development phenomenon and seepage field characteristics，this paper analyzes the genesis mechanism of Guanling landslide，and finds that，under the condition of heavy rainfall，the strong lateral recharge at the back of the slide source area raises the groundwater level，which causes the formation of high pressure water head in the slope body of the fissure water area of bedrock and induces the landslide instability on the potential weak structure plane in the slide source area. Then，the stability of the sliding body under multiple working conditions is analyzed by means of groundwater table analytic decoupling residual thrust method. The theoretical calculation results show that the average diameter of karst pipeline medium and rainfall intensity have great influence on the stability of the slope. When the average diameter of karst pipeline is 0.15 m or above，slope instability occurs under extreme rainfall conditions. The calculation formula of groundwater level and stability analysis method derived in this paper can provide useful reference for stability evaluation and prevention of karst landslides.

Key words： slope engineering Guanling landslide karst conduit groundwater level analytical solution instability mode

引用本文:

李江山1，2，3，李滨2，3，殷跃平3，4，崔芳鹏1，高杨2，3，万佳威2，3，李军2，3. 强降雨诱发作用下岩溶山体滑坡机制研究——以关岭滑坡为例[J]. 岩石力学与工程学报, 2023, 42(6): 1497-1507.
LI Jiangshan1，2，3，LI Bin2，3，YIN Yueping3，4，CUI Fangpeng1，GAO Yang2，3，WAN Jiawei2，3，LI Jun2，3. Research on mechanism of landslides in the southwest karst mountain areas under intensive rainfall：a case study of the Guanling landslide. , 2023, 42(6): 1497-1507.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0879 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/I6/1497

[15]	GUTIÉRREZ F，PARISE M，DE WAELE J，et al. A review on natural and human-induced geohazards and impacts in Karst[J]. Earth-Science Reviews，2014，138：61-88.
[16]	仵彦卿. 地下水与地质灾害[J]. 地下空间，1999，19(4)：303-316.(WU Yanqin. Groundwater and geological hazards[J]. Underground Space，1999，19(4)：303-316.(in Chinese))
[21]	韩行瑞. 岩溶水文地质学[M]. 北京：科学出版社，2015：60-62.(HAN Xingrui. Karst hydrogeology[M]. Beijing：Science Press，2015：60-62.(in Chinese))
[9]	黄润秋，徐则民，许模. 地下水的致灾效应及异常地下水流诱发地质灾害[J]. 地球与环境，2005，33(3)：1-9.(HUANG Runqiu，XU Zeming，XU Mo. Hazardous effects of underground water and extraordinary water flow-induced geohazards[J]. Earth and Environment，2005，33(3)：1-9.(in Chinese))
[13]	姚鑫，余凯，张永双，等. “1•11”镇雄灾难性滑坡滑动机制——高孔隙度土流态化启动与滑动液化[J]. 岩石力学与工程学报，2014，33(5)：1 047-1 054.(YAO Xin，YU Kai，ZHANG Yongshuang，et al. Mechanisms of catastrophic landslide on January 11，2013，in Zhenxiong county：fluidization initiation and movement liquefaction of high porosity soil[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(5)：1 047-1 054.(in Chinese))
[4]	刘传正. 贵州关岭大寨崩滑碎屑流灾害初步研究[J]. 工程地质学报，2010，18(5)：623-630.(LIU Chuanzheng. Preliminary findings on Dazhai Landslide debris flow disaster in Guizhou province of june 28，2010[J]. Journal of Engineering Geology，2010，18(5)：623-630.(in Chinese))
[6]	毕芬芬. 中缓倾内上硬下软型边坡失稳机理物理模拟研究—以贵州关岭大寨滑坡为例[硕士学位论文][D]. 成都：成都理工大学，2013.(BI Fenfen. Physical simulation study on the formation mechanism of a medium low-angle and counter-tilt slope with rigid layers on the soft — taking the Dazhai Landslide in Guanling County of Guizhou Province as example[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2013.(in Chinese))
[14]	高浩源，高杨，贺凯. 贵州水城“7.23”高位远程滑坡冲击铲刮效应分析[J]. 中国岩溶，2020，39(4)：535-546.(GAO Haoyuan，GAO Yang，HE Kai，et al. Impact and scraping effects of the high-elevation，long-runout“7.23”landslide in Shuicheng，Guizhou[J]. Carsologica Sinica，2020，39(4)：535-546.(in Chinese))
[18]	余波. 光照水电站坝址区岩溶水文地质特征及工程影响[J]. 贵州水力发电，2005，19(1)：14-19.(YU Bo. Karst hydrogeological characteristics and engineering influence in dam site of Guangzhao Hydropower Station[J]. Guizhou Water Power，2005，19(1)：14-19. (in Chinese))
[19]	陈崇希. 岩溶管道-裂隙-孔隙三重空隙介质地下水流模型及模拟方法研究[J]. 地球科学-中国地质大学学报，1995，20(4)：361-366.(CHEN Chongxi. Study on groundwater flow model and simulation method in karst pipe-fissure-pore triple void medium[J]. Earth Sciences-Journal of China University of Geosciences，1995，20(4)：361-366.(in Chinese))
[24]	陶小虎，赵坚，陈孝兵，等. 岩溶含水层水流模型研究进展[J]. 水利水电科技进展，2014，34(2)：76-84.(TAO Xiaohu，ZHAO Jian，CHEN Xiaobing，et al. Research progress in numerical models for water flow in karst aquifer[J]. Advances in Science and Technology of Water Resources，2014，34(2)：76-84.(in Chinese))
[2]	殷跃平，朱继良，杨胜元. 贵州关岭大寨高速远程滑坡-碎屑流研究[J]. 工程地质学报，2010，18(4)：445-454.(YIN Yueping，ZHU Jiliang，YANG Shengyuan. Investigation of a high speed and long run-out rockslide-debris flow at Dazhai in Guanling of Guizhou province[J]. Journal of Engineering Geology，2010，18(4)：445-454.(in Chinese))
[12]	邢爱国. 云南头寨大型高速岩质滑坡流体动力学机理的研究[J]. 岩石力学与工程学报，2002，21(4)：614.(XING Aiguo. Study on hydrokinetics mechanism of the touzhai large high-speed rockslide in Yunnan province of China[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(4)：614.(in Chinese))
[22]	张贵金，徐卫亚. 岩溶坝区溶蚀岩体的渗透性变异研究[J]. 岩石力学与工程学，2005，24(9)：1 527-1 534.(ZHANG Guijin，XU Weiya. Study on variability of permeability of corroded rock mass in karst dam region[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(9)：1 527-1 534.(in Chinese))
[1]	朱要强. 永窝、大寨特大型滑坡-碎屑流地质灾害勘查报告[R]. 贵阳：贵州省地质环境监测院，2011.(ZHU Yaoqiang. Geological hazard investigation report of Yongwo and Dazhai landslide-debris flow[R]. Guiyang：Geological Environment Monitoring Institute of Guizhou Province，2011.(in Chinese))
[3]	YIN Y P，SUN P，ZHU J L，et al. Research on catastrophic rock avalanche at Guanling，Guizhou，China[J]. Landslides，2011，8(4)：517-525.
[5]	KANG Y，ZHAO C，ZHANG Q，et al. Application of InSAR techniques to an analysis of the Guanling landslide[J]. Remote Sensing，2017，9(10)：1-17.
[7]	胡光中. 贵州省关岭县大寨村高速滑坡启动机理研究[硕士学位论文][D]. 成都：成都理工大学，2012.(HU Guangzhong. Study on starting mechanism of Dazhai village high-speed landslide in Guanling County of Guizhou Province[M. S. Thesis][D]. Chengdu：Chengdu University of Technology，2012.(in Chinese))
[8]	易连兴. 西南岩溶山区复合水动力场滑坡影响模式——以关岭县大寨滑坡为例[J]. 水文地质工程地质，2020，47(4)：43-50.(YI Lianxing. Impact model of landslide with complex hydrodynamic field in karst mountain areas of southwest China：a case study of the Dazhai landslide in Guanling County[J]. Hydrogeology and Engineering Geology，2020，47(4)：43-50.(in Chinese))
[11]	高杨，贺凯，李壮，等. 西南岩溶山区特大滑坡成灾类型及动力学分析[J]. 水文工程与工程地质，2020，47(4)：14-22.(GAO Yang，HE Kai，LI Zhuang，et al. An analysis of disaster types and dynamics of landslides in the southwest Karst mountain areas[J]. Hydrogeology and Engineering Geology，2020，47(4)：14-22.(in Chinese))
[10]	李滨，殷跃平，高杨，等. 西南岩溶山区大型崩滑灾害研究的关键问题[J]. 水文地质工程地质，2020，47(4)：5-13.(LI Bin，YIN Yueping，GAO Yang，et al. Critical issues in rock avalanches in the karst mountain areas of southwest China[J]. Hydrogeology and Engineering Geology，2020，47(4)：5-13.(in Chinese))
[17]	邹林. 北盘江光照水电站工程地质条件综述[J]. 贵州水力发电，2003，17(1)：16-21.(ZHOU Lin. Summary of engineering geological conditions of Beipanjiang Guangzhao Hydropower Station[J]. Guizhou Water Power，2003，17(1)：16-21.(in Chinese))
[20]	XING A G，WANG G H，YIN Y P，et al. Dynamic analysis and field investigation of a fluidized landslide in Guanling，Guizhou，China[J]. Engineering Geology，2014，181：1-14.
[27]	殷跃平，张晨阳，闫慧，等. 三峡水库蓄水运行滑坡渗流稳定和防治设计研究[J]. 岩石力学与工程学报，2022，41(4)：649-659. (YIN Yueping，ZHANG Chenyang，YAN Hui，et al. Research on seepage stability and prevention design of landslides during impoundment operation of the Three Gorges Reservoir，China[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(4)：649-659.(in Chinese))
[23]	赵坚，赖苗，沈振中. 适于岩溶地区渗流场计算的改进折算渗透系数法和变渗透系数法[J]. 岩石力学与工程学报，2005，24(8)： 1 341-1 347.(ZHAO Jian，LAI Miao，SHEN Zhenzhong. Improved converting permeability coefficient method and variable permeability cofficient method for seepage calculation in karst region[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(8)：1 341-1 347. (in Chinese))
[25]	许贤良，王开松，孟利民. 流体力学[M]. 北京：国防工业出版社，2011：168-171.(XU Xianliang，WANG Kaisong，MENG Limin. Fluid mechanics[M]. Beijing：National Defense Industry Press，2011：168-171.(in Chinese))
[26]	杨杨，赵良杰，苏春田，等. 基于 CFP 的岩溶管道流溶质运移数值模拟研究[J]. 水文地质工程地质，2019，46(4)：51-57.(YANG Yang，ZHAO Liangjie，SU Chuntian，et al. A study of the solute transport model for karst conduits based on CFP[J]. Hydrogeology and Engineering Geology，2019，46(4)：51-57.(in Chinese))