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动水压力型滑坡是三峡水库运行过程中重要的地质灾害类型，其坡体结构松散、孔隙比大、渗透性强，滑体渗透性在不同方向上呈现明显差异。为研究渗透各向异性对动水压力型滑坡变形响应规律的影响，以三峡库区白家包滑坡为研究对象，采用渗透系数比值kx/ky表征渗透各向异性，系统分析了不同滑体渗透系数比值kx/ky和库水位下降速率v作用下滑坡地表位移和变形滞后时间的变化规律。研究结果表明：(1)随渗透系数比值kx/ky增大，滑坡前部浸润线抬升，坡体内外水头差同步增大，指向坡外的动水压力相应增强。(2)当库水位下降速率保持不变时，滑体渗透系数比值越大，滑坡地表位移和变形滞后时间越大；当0.1
Landslides induced by hydrodynamic pressure constitute significant geological hazards during the operation of the Three Gorges Reservoir.Due to their loose structure, high void ratio, and strong permeability, the sliding mass exhibits pronounced permeability anisotropy.To investigate the influence of permeability anisotropy on the deformation response of hydrodynamic pressure-induced landslides, the Baijiabao landslide in the Three Gorges Reservoir area is studied.The permeability coefficient ratio kx/ky is used to characterize permeability anisotropy.The variations in landslide surface displacement and time lag under different permeability coefficient ratios kx/ky and reservoir drawdown rates v are systematically analyzed.The results are as follows:(1) As the ratio of hydraulic conductivities kx/ky increases, the phreatic line in the front part of the landslide rises, the hydraulic head difference inside and outside the landslide mass increases simultaneously, and the seepage force directed outward from the slope increases accordingly.(2)At constant v, higher kx/ky ratios increase both surface displacement and deformation hysteresis time.When 0.1
[1]殷坤龙，朱良峰.滑坡灾害空间区划及GIS应用研究[J].地学前缘，2001, 8(2):279-284.YIN K L, ZHU L F. Landslide hazard zonation and application of GIS[J]. Earth Science Frontiers, 2001, 8(2):279-284.
[2]许强，汤明高，徐开祥，等.滑坡时空演化规律及预警预报研究[J].岩石力学与工程学报，2008, 27(6):1104-1112.XU Q, TANG M G, XU K X, et al. Research on space-time evolution laws and early warning-prediction of landslides[J].Chinese Journal of Rock Mechanics and Engineering, 2008, 27(6):1104-1112.
[3]YIN Y, HUANG B, ZHANG Q, et al. Research on recently occurred reservoir-induced Kamenziwan rockslide in Three Gorges Reservoir, China[J]. Landslides, 2020, 17(8):1935-1949.
[4]卢书强，易庆林，易武，等.库水下降作用下滑坡动态变形机理分析——以三峡库区白水河滑坡为例[J].工程地质学报，2014, 22(5):869-875.LU S Q, YI Q L, YI W, et al. Study on dynamic deformation mechanism of landslide in drawdown of reservoir water level—Take Baishuihe landslide in Three Gorges Reservoir area for example[J]. Journal of Engineering Geology, 2014, 22(5):869-875.
[5]TANG M, XU Q, YANG H, et al. Activity law and hydraulics mechanism of landslides with different sliding surface and permeability in the Three Gorges Reservoir Area, China[J]. Engineering Geology, 2019, 260:105212.
[6]WANG S, PAN Y, WANG L, et al. Deformation characteristics, mechanisms, and influencing factors of hydrodynamic pressure landslides in the Three Gorges Reservoir:A case study and model test study[J]. Bulletin of Engineering Geology and the Environment, 2021, 80(4):3513-3533.
[7]KAFLE L, XU W J, ZENG S Y, et al. A numerical investigation of slope stability influenced by the combined effects of reservoir water level fluctuations and precipitation:A case study of the Bianjiazhai landslide in China[J]. Engineering Geology, 2022, 297:106508.
[8]LUO F, ZHANG G, MA C. On the soil slope failure mechanism considering the mutual effect of bedrock and drawdown[J]. International Journal of Geomechanics, 2021,21(2):04020247.
[9]朱赛楠，殷跃平，黄波林，等.三峡库区大型单斜顺层新生滑坡变形特征与失稳机理研究[J].工程地质学报，2021, 29(3):657-667.ZHU S N, YIN Y P, HUANG B L, et al. Deformation characteristics and instability mechanism of large monoclinal layered neogenic bedrock landslide in Three Gorges Reservoir area[J]. Journal of Engineering Geology, 2021, 29(3):657-667.
[10]冉爱民，杨威，彭嘉畅，等.库水位降速对缓倾角堆积层滑坡稳定性的影响[J].安全与环境工程，2024, 31(3):198-205.RAN A M, YANG W, PENG J C, et al. Influence of declining rate of reservoir water level on the stability of gently inclined colluvial landslide[J]. Safety and Environmental Engineering, 2024, 31(3):198-205.
[11]彭建兵，王启耀，庄建琦，等.黄土高原滑坡灾害形成动力学机制[J].地质力学学报，2020, 26(5):714-730.PENG J B, WANG Q Y, ZHUANG J Q, et al. Dynamic formation mechanism of landslide disaster on the Loess Plateau[J]. Journal of Geomechanics, 2020, 26(5):714-730.
[12]汤明高，李松林，许强，等.基于离心模型试验的库岸滑坡变形特征研究[J].岩土力学，2020, 41(3):755-764.TANG M G, LI S L, XU Q, et al. Study of deformation characteristics of reservoir landslide based on centrifugal model test[J]. Rock and Soil Mechanics, 2020, 41(3):755-764.
[13]檀梦皎，殷坤龙，付智勇，等.降雨及库水位影响下麻地湾滑坡地下水响应特征分析[J].中国地质灾害与防治学报，2022,33(1):45-57.TAN M J, YIN K L, FU Z Y, et al. Analysis on groundwater response characteristics of Madiwan landslide under the influence of rainfall and reservoir water[J]. The Chinese Journal of Geological Hazard and Control, 2022, 33(1):45-57.
[14]王佳，朱鸿鹄，叶霄，等.考虑时滞效应的库区滑坡位移预测——以新铺滑坡为例[J].工程地质学报，2022, 30(5):1609-1619.WANG J, ZHU H H, YE X, et al. Prediction of reservoir landslide displacements considering time lag effect—A case study of the Xinpu landslide in the Three Gorges Reservoir area,China[J]. Journal of Engineering Geology, 2022, 30(5):1609-1619.
[15]高晨曦，刘艺梁，薛欣，等.三峡库区典型堆积层滑坡变形滞后时间效应研究[J].工程地质学报，2021, 29(5):1427-1436.GAO C X, LIU Y L, XUE X, et al. Study on deformation lag time effect of typical colluvial landslide in Three Gorges Reservoir area[J]. Journal of Engineering Geology, 2021, 29(5):1427-1436.
[16]李维娜.三峡库区动水压力型堆积层滑坡动态变形响应及渗透性研究[D].武汉：中国地质大学（武汉），2023.LI W N. Study on Dynamic Deformation Response and Permeability of Hydrodynamic Pressure Colluvial Landslide in Three Gorges Reservoir[D]. Wuhan:China University of Geosciences(Wuhan), 2023.
[17]YEH H F, TSAI Y J. Analyzing the effect of soil hydraulic conductivity anisotropy on slope stability using a coupled hydromechanical framework[J]. Water, 2018, 10(7):905.
[18]LIU L L, HAN H, HUANG S Y, et al. Combined influence of rotated transverse anisotropy in mechanical parameters and hydraulic conductivity of soils on reliability evaluation of an unsaturated slope under rainfalls[J]. Computers and Geotechnics, 2024, 165:105938.
[19]袁俊平，蔺彦玲，丁鹏，等.裂隙诱导各向异性对边坡降雨入渗的影响[J].岩土工程学报，2016, 38(1):76-82.YUAN J P, LIN Y L, DING P, et al. Influence of anisotropy induced by fissures on rainfall infiltration of slopes[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(1):76-82.
[20]YU S, REN X, ZHANG J, et al. Seepage, deformation, and stability analysis of sandy and clay slopes with different permeability anisotropy characteristics affected by reservoir water level fluctuations[J]. Water, 2020, 12(1):201.
[21]顾玉明，袁云星，李希琨.降雨条件下土体各向异性渗透对边坡稳定性的影响[J].中国安全生产科学技术，2023, 19（增刊1）:43-49.GU Y M, YUAN Y X, LI X K. Influence of soil anisotropic infiltration on slope stability under rainfall conditions[J].Journal of Safety Science and Technology, 2023, 19(S1):43-49.
[22]邱鹏，张珂锋.在库水位骤降及降雨条件下各向异性土坡孔压与安全系数的变化[J].石河子大学学报（自然科学版），2020,38(1):51-57.QIU P, ZHANG K F. Numerical simulation of seepage stability of anisotropic soil slope under coupled rainfall with sudden drop of reservoir water level[J]. Journal of Shihezi University(Natural Science), 2020, 38(1):51-57.
[23]师文豪，杨天鸿，于庆磊，等.层状边坡各向异性岩体渗流-应力耦合模型及工程应用[J].岩土力学，2015, 36(8):2352-2360.SHI W H, YANG T H, YU Q L, et al. Seepage-stress coupling model of anisotropic rock mass of stratified slope and its engineering application[J]. Rock and Soil Mechanics, 2015, 36(8):2352-2360.
[24]REN F, MA G, FU G, et al. Investigation of the permeability anisotropy of 2D fractured rock masses[J]. Engineering Geology, 2015, 196:171-182.
[25]尚敏，廖芬，马锐，等.白家包滑坡变形与库水位、降雨相关性定量化分析研究[J].工程地质学报，2021, 29(3):742-750.SHANG M, LIAO F, MA R, et al. Quantitative correlation analysis on deformation of Baijiabao landslide between rainfall and reservoir water level[J]. Journal of Engineering Geology,2021, 29(3):742-750.
[26]BASAK P. Soil structure and its effects on hydraulic conductivity[J]. Soil Science, 1972, 114(6):417-422.
[27]GERMER K, BRAUN J. Determination of anisotropic saturated hydraulic conductivity of a macroporous slope soil[J].Soil Science Society of America Journal, 2015, 79(6):1528-1536.
[28]汤明高，杨何，许强，等.三峡库区滑坡土体渗透特性及参数研究[J].工程地质学报，2019, 27(2):325-332.TANG M G, YANG H, XU Q, et al. Permeability and parameters of landslide bodies in Three Gorges Reservoir area[J]. Journal of Engineering Geology, 2019, 27(2):325-332.
[29]刘艺梁，唐玄，许方党，等.基于滑体渗透性与库水变动的滑坡变形滞后规律研究[J].地质科技通报，2022, 41(6):105-112.LIU Y L, TANG X, XU F D, et al. Landslide deformation hysteresis regularity based on permeability of landslide and reservoir water change[J]. Bulletin of Geological Science and Technology, 2022, 41(6):105-112.
[30]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 Y P, ZHANG C Y, YAN H, 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.
[31]陈勇，叶润青，申清峰，等.动水压力型滑坡不利因素组合及作用机制试验研究[J].自然灾害学报，2025, 34(1):75-84.CHEN Y, YE R Q, SHEN Q F, et al. Experimental research on adverse factors combination and action mechanism of seepage-driven landslide[J]. Journal of Natural Disasters,2025, 34(1):75-84.
[32]唐辉明，鲁莎.三峡库区黄土坡滑坡滑带空间分布特征研究[J].工程地质学报，2018, 26(1):129-136.TANG H M, LU S. Research on the spatial distribution of slip zone of Huangtupo landslide in Three Gorges Reservoir area[J]. Journal of Engineering Geology, 2018, 26(1):129-136.
[33]HOU T S, XU G L, ZHANG D Q, et al. Stability analysis of Gongjiacun landslide in the three Gorges Reservoir area under the action of reservoir water level fluctuation and rainfall[J].Natural Hazards, 2022, 114(2):1647-1683.
[34]郭璐，贺可强，周云，等.水库型滑坡复合水动力增载位移响应比物理预测模型及其应用[J].工程地质学报，2022, 30(5):1561-1572.GUO L, HE K Q, ZHOU Y, et al. Physical prediction model and application of compound hydrodynamic displacement response ratio with dynamics increment in reservoir landslide[J]. Journal of Engineering Geology, 2022, 30(5):1561-1572.
[35]罗世林，刘华亮，蒋建清.库水—降雨作用下靠椅状基覆面堆积层滑坡响应机理[J].清华大学学报（自然科学版），2024,64(8):1336-1346.LUO S L, LIU H L, JIANG J Q. Coupled influence of reservoir water and rainfall on the response mechanism of accumulated landslides with chair-like interfaces between sliding masses and bedrock[J]. Journal of Tsinghua University(Science and Technology), 2024, 64(8):1336-1346.
[36]汪发武，宋琨.库水位涨落条件下不同结构边坡的变形破坏机制分析——以千将坪滑坡和树坪滑坡为例[J].工程地质学报，2021, 29(3):575-582.WANG F W, SONG K. Analysis of deformation and failure mechanism of bank slopes with different structures under reservoir water level fluctuation—Taking Qianjiangping landslide and Shuping landslide as examples[J]. Journal of Engineering Geology, 2021, 29(3):575-582.
基本信息:
DOI：10.13578/j.cnki.issn.1671-1556.20250651
中图分类号:P642.22;TV697.23
引用信息:
[1]刘艺梁,朱前,李永奕,等.考虑渗透各向异性的动水压力型滑坡变形响应规律[J].安全与环境工程,2026,33(01):56-68.DOI:10.13578/j.cnki.issn.1671-1556.20250651.
基金信息:
国家自然科学基金项目（41807294）; 防灾减灾湖北省重点实验室开放基金项目（2025KJZ02）; 湖北省交通运输厅科技项目（2023-121-4-2）; 湖北省科技计划（2025CSA068）; 三峡大学土木与建筑学院科研创新基金项目（2024SSCX003）
2026-02-09
2026-02-09
2026-02-09