Research progress on the formation mechanism and risk assessment method of river blocking induced by landslide
WU Hao1，2，3，NIAN Tingkai3，SHAN Zhigang2
(1. Institute of Mountain Hazards and Environment，Chinese Academy of Sciences，Chengdu，Sichuan 610041，China；
2. PowerChina Huadong Engineering Corporation Limited，Hangzhou，Zhejiang 310014，China；3. School of Civil
Engineering，Dalian University of Technology，Dalian，Liaoning 116024，China)
Abstract：In recent years，a large number of landslides blocking rivers induced by earthquake and extreme climate occurred frequently，seriously threatening the safety of people?s life and property and infrastructure in the basin. However，the current understanding of the formation mechanism of landslides blocking river is still not comprehensive，which is worth further research. Based on typical cases of landslide blocking river since the 21st century，the general process and main characteristics of landslide blocking river are deeply analyzed. In view of large scale of landslide blocking river，the necessary conditions for the formation of landslide river blocking and the meso-mechanism of fluid-soil coupling in the process of river blocking are revealed from three aspects of theoretical analysis，physical model test and numerical simulation respectively. Hazard assessment of landslide blocking river mainly include distinguishing of river blocking，evaluation of the landslide dam stability and assessment of dam failure hazard. However，there is no unified standard form for distinguishing of river blocking. The material and structure characteristics of the landslide dam have not been considered in the stability evaluation of the dam. The physical mechanism of the mathematical model for predicting peak discharge of dam-break flood still needs to be further revealed. Based on the limitations of the current research，four key issues that should be focused on in the study of landslide blocking river are prospected：(1) Study on the accumulation structure and prediction model of landslide damming induced by debris-avalanche considering the influence of fragmentation；(2) Physical and numerical simulation methods of evolution process of landslide blocking river；(3) Hazard assessment method of landslide blocking river based on the state of landslide material；(4) Early warning factors and key monitoring and early warning technologies for landslide dams. The results provide useful reference for the prediction of landslide blocking river disaster chain，emergency geological treatment of landslide dam and regional disaster prevention and mitigation planning in mountain and ravine region.
吴 昊1，2，3，年廷凯3，单治钢2. 滑坡堵江成坝的形成演进机制及危险性预测方法研究进展[J]. 岩石力学与工程学报, 2023, 42(S1): 3192-3205.
WU Hao1，2，3，NIAN Tingkai3，SHAN Zhigang2. Research progress on the formation mechanism and risk assessment method of river blocking induced by landslide. , 2023, 42(S1): 3192-3205.
[1] 柴贺军，刘汉超，张倬元. 滑坡堵江的基本条件[J]. 地质灾害与环境保护，7(1)：41–46.(CHAI Hejun，LIU Hanchao，ZHANG Zhuoyuan. The main conditions of landslide dam[J]. Journal of Geological Hazards and Environment Preservation，1996，7(1)：41–46.(in Chinese))
[2] COSTA J E，SCHUSTER R L. The formation and failure of natural dams[J]. Geological Society of America Bulletin，1988，100：1 054–1 068.
[3] EVANS S G，HERMANNS R L，STROM A，et al. Natural and artificial rockslide dams[M]. Berlin：Springer Science and Business Media，2011：1–20.
[4] LIU W，CARLING P A，HU K，et al. Outburst floods in China：A review[J]. Earth-Science Reviews，2019，197：102895.
[5] 刘 威，何思明. 金沙江沃达潜在滑坡诱发灾害链成灾过程数值模拟[J]. 工程科学与技术，2020，52(2)：1–9.(LIU Wei，HE Siming. Numerical simulation of the evolution process of disaster chain induced by potential landslide in Woda of Jinsha river basin[J]. Advanced Engineering Sciences，2020，52(2)：1–9.(in Chinese))
[6] DAI F C，LEE C F，DENG J H，et al. The 1786 earthquake-triggered landslide dam and subsequent dam-break flood on the Dadu River，southwestern China[J]. Geomorphology，2005，65：205–221.
[7] 柴贺军，刘汉超，张倬元. 中国滑坡堵江事件目录[J]. 地质灾害与环境保护，1995，6(4)：1–9.(CHAI Hejun，LIU Hanchao，ZHANG Zhuoyuen. The catalog of Chinese landslide dam events[J]. Journal of Geological Hazards and Environment Preservation，1995，6(4)：1–9.(in Chinese))
[8] 殷跃平. 汶川八级地震地质灾害研究[J]. 工程地质学报，2008，16(4)：433–444.(YIN Yueping. Researchs on the geo-hazards triggered by Wenchuan earthquake，Sichuan[J]. Journal of Engineering Geology，2008，16(4)：433–444.(in Chinese))
[9] 中华人民共和国行业标准编写组. SL 450—2009 堰塞湖风险等级划分标准[S]. 北京：中国水利水电出版社，2009.(The Professional Standards Compilation Group of People?s Republic of China. SL 450—2009 Standard for Classification of Risk Grade of Landslide Lake[S]. Beijing：China Water and Power Press，2009.(in Chinese))
[10] 中华人民共和国行业标准编写组. SL/T 450—2021 堰塞湖风险等级划分及应急处置技术规范[S]. 北京：中国水利水电出版社，2021.(The Professional Standards Compilation Group of People?s Republic of China. SL 451—2009 Technique guideline for emergency disposal of landslide lake[S]. Beijing：China Water and Power Press，2021.(in Chinese))
[11] 年廷凯，吴 昊，陈光齐，等. 堰塞坝稳定性评价方法及灾害链效应研究进展[J]. 岩石力学与工程学报，2018，37(8)：1 796–1 812. (NIAN Tingkai，WU Hao，CHEN Guangqi，et al. Research progress on stability evaluation method and disaster chain effect of landslide dam[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(8)：1 796–1 812.(in Chinese))
[12] FAN X M，DUFRESNE A，SUBRAMANIAN S S，et al. The formation and impact of landslide dams-State of the art[J]. Earth- Science Reviews，2020，203：103116.
[13] ZHENG H C，SHI Z M，SHEN D Y，et al. Recent advances in stability and failure mechanisms of landslide dams[J]. Frontiers in Earth Science，2021，9：659935.
[14] 殷跃平，王文沛. 高位远程滑坡动力侵蚀犁切计算模型研究[J]. 岩石力学与工程学报，2020，39(8)：1 513–1 521.(YIN Yueping，WANG Wenpei. A dynamic erosion plowing model of long run-out landslides initialized at high locations[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(8)：1 513–1 521.(in Chinese))
[15] 王玉峰，林棋文，李 坤，等. 高速远程滑坡动力学研究进展[J]. 地球科学与环境学报，2021，43(1)：164–181.(WANG Yufeng，LIN Qiwen，LI Kun，et al. Review on rock avalanche dynamics[J]. Journal of Earth Science and Environment，2021，43(1)：164–181.(in Chinese))
[16] 黄润秋，许 强. 中国典型灾难性滑坡[M]. 北京：科学出版社，2008：1–4.(HUANG Runqiu，XU Qiang. Catastrophic landslides in China[M]. Beijing：Science Press，2008：1–4.(in Chinese))
[17] 戴兴建，殷跃平，邢爱国. 易贡滑坡–碎屑流–堰塞坝溃坝链生灾害全过程模拟与动态特征分析[J]. 中国地质灾害与防治学报，2019，30(5)：1–8.(DAI Xingjian，YIN Yueping，XING Aiguo. Simulation and dynamic analysis of Yigong rockslide-debris avalanche-dam breaking disaster chain[J]. The Chinese Journal of Geological Hazard and Control，2019，30(5)：1–8.(in Chinese))
[18] 邓建辉，高云建，余志球，等. 堰塞金沙江上游的白格滑坡形成机制与过程分析[J]. 工程科学与技术，2019，51(1)：9–16.(DENG Jianhui，GAO Yunjian，YU Zhiqiu，et al. Analysis on the formation mechanism and process of Baige landslides damming the upper reach of Jinsha River，China[J]. Advanced Engineering Sciences，2019，51(1)：9–16.(in Chinese))
[19] CAI Y，CHENG H，WU S，et al. Breaches of the Baige Barrier Lake：Emergency response and dam breach flood[J]. Science China Technological Sciences，2020，63：1 164–1 176.
[20] 许 强，郑 光，李为乐，等. 2018年10月和11月金沙江白格两次滑坡–堰塞堵江事件分析研究[J]. 工程地质学报，2018，26(6)：1 534–1 551.(XU Qiang，ZHENG Guang，LI Weile，et al. Study on successive landslide damming events of Jinsha River in Baige Village on October 11 and November 3，2018[J]. Journal of Engineering Geology，2018，26(6)：1 534–1 551.(in Chinese))
[21] ERMINI L，CASAGLI N. Prediction of the behaviour of landslide dams using a geomorphological dimensionless index[J]. Earth Surface Processes and Landforms，2003，28：31–47.
[22] TACCONI S C，SEGONI S，CASAGLI N，et al. Geomorphic indexing of landslide dams evolution[J]. Engineering Geology，2016，208：1–10.
[23] 王珊珊，童立强，郭兆成，等. 基于河长——坡降指数的滑坡堵江事件自动识别[J]. 工程地质学报，2017，25(2)：511–519.(WANG Shanshan，TONG Liqiang，GUO Zhaocheng，et al. Automatic identification of landslide dams using stream length-gradient index[J]. Journal of Engineering Geology，2017，25(2)：511–519.(in Chinese))
[24] CHEN K T，CHEN X Q，NIU Z P，et al. Early identification of river blocking induced by tributary debris flow based on dimensionless volume index[J]. Landslides，2019，16：2 335–2 352.
[25] WU H，NIAN T K，CHEN G Q，et al. Laboratory-scale investigation of the 3-D geometry of landslide dams in a U-shaped valley[J]. Engineering Geology，2020，265：105428.
[26] DAL SASSO S F，SOLE A，PASCALE S，et al. Assessment methodology for the prediction of landslide dam hazard[J]. Natural Hazards and Earth System Sciences，2014，14(3)：557–567.
[27] SHI Z M，WANG Y Q，PENG M，et al. Landslide dam deformation analysis under aftershocks using large-scale shaking table tests measured by videogrammetric technique[J]. Engineering Geology，2015，186：68–78.
[28] JIANG X G，WORMAN A，CHEN P，et al. Mechanism of the progressive failure of non-cohesive natural dam slopes[J]. Geomorphology，2020，363：107198.
[29] JIANG X G，WEI Y. Erosion characteristics of outburst floods on channel beds under the conditions of different natural dam downstream slope angles[J]. Landslides，2020，17：1 823–1 834.
[30] ZHONG Q M，CHEN S S，SHAN Y. Prediction of the overtopping-induced breach process of the landslide dam[J]. Engineering Geology，2020，274：105709.
[31] DU C，LING-KAN Y，SUBHASHSAGAR S，et al. Damming of large river by debris flow：dynamic process and particle composition[J]. Journal of Mountain Science，2014，11：634–643.
[32] 郑鸿超，石振明，彭 铭，等. 崩滑碎屑体堵江成坝研究综述与展望[J]. 工程科学与技术，2020，52(2)：19–28.(ZHENG Hongchao，SHI Zhenming，PENG Ming，et al. Review and prospect of the formation mechanism of landslide dams caused by landslide and avalanche debris[J]. Advanced Engineering Sciences，2020，52(2)：19–28.(in Chinese))
[33] WANG Y F，XU Q，CHENG Q G，et al. Spreading and deposit characteristics of a rapid dry granular avalanche across 3D topography：experimental study[J]. Rock Mechanics and Rock Engineering，2016，49：4 349–4 370.
[34] 王玉峰，许 强，程谦恭，等. 复杂三维地形条件下滑坡–碎屑流运动与堆积特征物理模拟实验研究[J]. 岩石力学与工程学报，2016，35(9)：1 776–1 791.(WANG Yufeng，XU Qiang，CHENG Qiangong，et al. Experimental study on the propagation and deposit features of rock avalanche along 3D complex topography[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(9)：1 776–1 791. (in Chinese))
[35] ZHOU Y，SHI Z M，ZHANG Q，et al. Damming process and characteristics of landslide-debris avalanches[J]. Soil Dynamics and Earthquake Engineering，2019，121：252–261.
[36] LIAO H M，YANG X G，LU G D，et al. Experimental study on the formation of landslide dams by fragmentary materials from successive rock slides[J]. Bulletin of Engineering Geology and the Environment， 2019，79：1 591–1 604.
[37] CROSTA G B，DE BLASIO F V，DE C M，et al. Modes of propagation and deposition of granular flows onto an erodible substrate：experimental，analytical，and numerical study[J]. Landslides，2017，14：47–68.
[38] NIAN T K，WU H，LI D Y，et al. Experimental investigation on the formation process of landslide dams and a criterion of river blockage[J]. Landslides，2020，17：2 547–2 562.
[39] WU H，ZHENG D F，ZHANG Y J，et al. A photogrammetric method for laboratory-scale investigation on 3D landslide dam topography[J]. Bulletin of Engineering Geology and the Environment，2020，79： 4 717–4 732.
[40] NIAN T K，ZHANG Y J，WU H，et al. Runout simulation of seismic landslides using discontinuous deformation analysis(DDA) with state-dependent shear strength model[J]. Canadian Geotechnical Journal，2020，57：1 183–1 196.
[41] 徐文杰，陈祖煜，何秉顺，等. 肖家桥滑坡堵江机制及灾害链效应研究[J]. 岩石力学与工程学报，2010，29(5)：933–942.(XU Wenjie，CHEN Zuyu，HE Bingshun，et al. Research of river-blocking mechanism of Xiaojiaqiao landslide and disasters of chains effects[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(5)：933–942.(in Chinese))
[42] LIU W，HE S M. A two-layer model for simulating landslide dam over mobile river beds[J]. Landslides，2016，13：565–576.
[43] LIU W，JU N，ZHANG Z，et al. Simulating the process of the Jinshajiang landslide-caused disaster chain in October 2018[J]. Bulletin of Engineering Geology and the Environment，2020，79： 2 189–2 199.
[44] HU Y X，YU Z Y，ZHOU J W. Numerical simulation of landslide-generated waves during the 11 October 2018 Baige landslide at the Jinsha River[J]. Landslides，2020，17：2 317–2 328.
[45] SHAN T，ZHAO J. A coupled CFD-DEM analysis of granular flow impacting on a water reservoir[J]. Acta Mechanica，2014，225：2 449.
[46] ZHAO T，DAI F，XU N W. Coupled DEM-CFD investigation on the formation of landslide dams in narrow rivers[J]. Landslides，2017，17：189–201.
[47] WANG W，CHEN G，ZHANG Y，et al. Dynamic simulation of landslide dam behavior considering kinematic characteristics using a coupled DDA-SPH method[J]. Engineering Analysis with Boundary Elements，2017，80：172–183.
[48] NIAN T K，WU H，TAKARA K，et al. Numerical investigation on the evolution of landslide-induced river blocking using coupled DEM-CFD[J]. Computers and Geotechnics，2021，134：104101.
[49] NIAN T K，LI D Y，LIANG Q H，et al. Multi-phase flow simulation of landslide dam formation process based on extended coupled DEM-CFD method[J]. Computers and Geotechnics，2021，140：104438.
[50] 崔 鹏，何易平，陈 杰. 泥石流输沙及其对山区河道的影响[J]. 山地学报，2006，24(5)：539–549.(CUI Peng，HE Yipin，CHEN Jie. Debris flow sediment transportation and its effects on rivers in mountain area[J]. Journal of Mountain Science，2006，24(5)：539–549.(in Chinese))
[51] DONG J J，TUNG Y H，CHEN C C，et al. Logistic regression model for predicting the failure probability of a landslide dam[J]. Engineering Geology，2011，117：52–61.
[52] PENG M，ZHANG L M. Breaching parameters of landslide dams[J]. Landslides，2012，9：13–31.
[53] 单熠博，陈生水，钟启明. 堰塞体稳定性快速评价方法研究[J]. 岩石力学与工程学报，2020，39(9)：124–136.(SHAN Yibo，CHEN Shengshui，ZHONG Qiming. A rapid evaluation method of landslide dam stability[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(9)：124–136.(in Chinese))
[54] SHAN Y B，CHEN S S，ZHONG Q M. Rapid prediction of landslide dam stability using the logistic regression method[J]. Landslides，2020，17：2 931–2 956.
[55] NASH T R. Engineering geological assessment of selected landslide dams formed from the 1929 Murchison and 1968 Inangahua earthquakes[M. S. Thesis][D]. Christchurch：University of Canterbury，2003.
[56] 陈生水，陈祖煜，钟启明. 土石坝和堰塞坝溃决机理与溃坝数学模型研究进展[J]. 水利水电技术，2019，50(8)：27–36.(CHEN Shengshui，CHEN Zuyu，ZHONG Qiming. Progresses of studies on failure mechanism and numerical dam failure model of earth-rockfill dam and landslide dam[J]. Water Resources and Hydropower Engineering，2019，50(8)：27–36.(in Chinese))
[57] ZHONG Q M，WANG L，CHEN S S，et al. Breaches of embankment and landslide dams-State of the art review[J]. Earth-Science Reviews，2021，216：103597.
[58] 石振明，周明俊，彭 铭，等. 崩滑型堰塞坝漫顶溃决机制及溃坝洪水研究进展[J]. 岩石力学与工程学报，2021，40(11)：2 173–2 188. (SHI Zhenming，ZHOU Mingjun，PENG Ming，et al. Research progress on overtopping failure mechanisms and breaching flood of landslide dams caused by landslides and avalanches[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(11)：2 173–2 188. (in Chinese))
[59] 石振明，马小龙，彭 铭，等. 基于大型数据库的堰塞坝特征统计分析与溃决参数快速评估模型[J]. 岩石力学与工程学报，2014，33(9)：1 780–1 790.(SHI Zhenming，MA Xiaolong，PENG Ming，et al. Statistical analysis and efficient dam burst modelling of landslide dams based on a large-scale database[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(9)：1 780–1 790.(in Chinese))
[60] ZHOU M J，ZHOU G G D，CUI K F E，et al. Influence of inflow discharge and bed erodibility on outburst flood of landslide dam[J]. Journal of Mountain Science，2019，16：778–792.
[61] CHANG D S，ZHANG L M. Simulation of the erosion process of landslide dams due to overtopping considering variations in soil erodibility along depth[J]. Natural Hazards and Earth System Sciences，2010，10：933–946.
[62] FAN X M，TANG C X，WESTEN C J，et al. Simulating dam-breach flood scenarios of the Tangjiashan landslide dam induced by the Wenchuan Earthquake[J]. Natural Hazards and Earth System Sciences，2012，12：3 031–3 044.
[63] ZHANG L M，XIAO T，HE J，et al. Erosion-based analysis of breaching of Baige landslide dams on the Jinsha River，China，in 2018[J]. Landslides，2019，16：1 965–1 979.
[64] ZHONG Q M，CHEN S S，WANG L，et al. Back analysis of breaching process of Baige landslide dam[J]. Landslides，2020，17：1 681–1 692.
[65] PATHAK K R，SUZUKI K，KADOTA A，et al. Mechanism of natural dam collapse formed in a steep slope channel and simulation[J]. Proceedings of Hydraulic Engineering，2004，48：907–912.
[66] MIZUYAMA T，SATOHUKA Y，OGAWA K，et al. Estimating the outflow discharge rate from landslide dam outbursts[C]// Proceedings of the Interpraevent International Symposium on Disaster Mitigation of Debris Flows，Slope Failures and Landslides. [S. l.]：[s. n.]，2006：365–377.
[67] AWAL R，NAKAGAWA H，BABA Y，et al. Numerical and experimental study on landslide dam failure by sliding[J]. Annual Journal of Hydraulic Engineering，JSCE，2007，51：7–12.
[68] DAVIES T，MANVILLE V，KUNZ M，et al. Modeling landslide dam break flood magnitudes：Case study[J]. Journal of Hydraulic Engineering，2007，133：713–720.
[69] YAN J，CAO Z X，LIU H H，et al. Experimental study of landslide dam-break flood over erodible bed in open channels[J]. Journal of Hydrodynamics，Ser B，2009，21：124–130.
[70] CHOU H T，LEE C F. Falling process of a rectangular granular step[J]. Granular Matter，2011，13：39–51.
[71] GREGORETTI C，MALTAURO A，LANZONI S. Laboratory experiments on the failure of coarse homogeneous sediment natural dams on a sloping bed[J]. Journal of Hydraulic Engineering，2010，136：868–879.
[72] 罗利环，黄 尔，吕文翠，等. 堰塞坝溃坝洪水影响因素试验[J]. 水利水电科技进展，2010，30(5)：1–4.(LUO Lihuan，HUANG Er，LV Wencui，et al. Experimental study on influence factors for dam-break flood of barrier dams[J]. Advances in Science and Technology of Water Resources，2010，30(5)：1–4.(in Chinese))
[73] 邓明枫，陈宁生，胡桂胜，等. 松散及弱固结堰塞体溃坝形式与流量过程[J]. 水利水电科技进展，2011，31(1)：11–14.(DENG Mingfeng，CHEN Ningsheng，HU Guisheng，et al. Outburst patterns and discharge process for weakly consolidated and loose barrier dams[J]. Advances in Science and Technology of Water Resources，2011，31(1)：11–14.(in Chinese))
[74] NIU Z P，XU W L，LI N W，et al. Experimental investigation of the failure of cascade landslide dams[J]. Journal of Hydrodynamics，Ser B，2012，24：430–441.
[75] 张大伟，权 锦，何晓燕，等. 堰塞坝漫顶溃决试验及相关数学模型研究[J]. 水利学报，2012，43(8)：979–986.(ZHANG Dawei，QUAN Jing，HE Xiaoyan，et al. Experimental and numerical investigation on overtopping breaching of barrier dam[J]. Journal of Hydraulic Engineering，2012，43(8)：979–986.(in Chinese))
[76] 杨 阳，曹叔尤. 堰塞坝溃决机理试验研究[J]. 水利学报，2012，43(增2)：60–67.(YANG Yang，CAO Shuyou. Experimental study on breach growth mechanisms of natural barrier dams[J]. Journal of Hydraulic Engineering，2012：43(Supp.2)：60–67.(in Chinese))
[77] OKEKE A C，WANG F W，MITANI Y. Influence of geotechnical properties on landslide dam failure due to internal erosion and piping[C]// SASSA K，CANUTI P，YIN Y，ed. Landslide Science for a Safer Geoenvironment：Targeted Landslides. [S. l.]：Springer International Publishing，2014：623–631.
[78] REGMI R K，LEE G，JUNG K. Analysis on failure of slope and landslide dam[J]. KSCE Journal of Civil Engineering，2013，17： 1 166–1 178.
[79] XU F G，YANG X G，ZHOU J W，et al. Experimental research on the dam-break mechanisms of the Jiadanwan landslide dam triggered by the Wenchuan earthquake in China[J]. Scientific World Journal，2013，2013：272363.
[80] ZHOU G G D，CUI P，CHEN H Y，et al. Experimental study on cascading landslide dam failures by upstream flows[J]. Landslides，2013，10：633–643.
[81] CHEN H Y，CUI P，ZHOU G G D，et al. Experimental study of debris flow caused by domino failures of landslide dams[J]. International Journal of Sediment Research，2014，29(3)：414–422.
[82] CHEN S C，LIN T W，CHEN C Y. Modeling of natural dam failure modes and downstream riverbed morphological changes with different dam materials in a flume test[J]. Engineering Geology，2015，188：148–158.
[83] SHARIF Y A，ELKHOLY M，CHAUDHRY M H，et al. Experimental study on the piping erosion process in earthen embankments[J]. Journal of Hydraulic Engineering，2015，141(7)：04015012.
[84] 徐富刚，杨兴国，周家文. 堰塞坝漫顶破坏溃口演变机制试验研究[J]. 重庆交通大学学报：自然科学版，2015，34(6)：79–83.(XU Fugang，YANG Xingguo，ZHOU Jiawen. Experimental study on dyke evolution mechanism in dam-break process of landslide dam[J]. Journal of Chongqing Jiaotong University：Natural Science，2015，34(6)：79–83.(in Chinese))
[85] ZHAO W，CHEN X，YOU Y，et al. Dam-break characteristics of landslide dams with different types of open channel discharge sections[J]. Environmental Earth Sciences，2015，74：5 331–5 340.
[86] DO X K，KIM M，NGUYEN H P T，et al. Analysis of landslide dam failure caused by overtopping[J]. Procedia Engineering，2016，154：990–994.
[87] DO X K，REGMI R K，NGUYEN H P T，et al. Study on the formation and geometries of rainfall-induced landslide dams[J]. KSCE Journal of Civil Engineering，2017，21：1 657–1 667.
[88] JIANG X G，CUI P，CHEN H Y，et al. Formation conditions of outburst debris flow triggered by overtopped natural dam failure[J]. Landslides，2016，14：821–831.
2023, Vol. 42 
