Article
Engineering, Environmental
Taorui Zeng, Kunlong Yin, Lei Gui, Dario Peduto, Liyang Wu, Zizheng Guo, Ye Li
Summary: This study assesses the risk associated with the Shilongmen reservoir landslide in the Three Gorges Reservoir Area (TGRA) of China. Two hazard scenarios, deformation and failure, are considered. The risk assessment framework combines finite element analyses, the limit equilibrium method, and the Monte Carlo method to evaluate the impact of reservoir water level and rainfall on landslide displacements and failure probability. The vulnerability of elements at risk is quantitatively modeled, and the expected economic losses are estimated.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Environmental Sciences
Xin Liang, Lei Gui, Wei Wang, Juan Du, Fei Ma, Kunlong Yin
Summary: This study analyzed the development pattern of the Ganjingzi landslide in the Three Gorges Reservoir area based on long-term monitoring. The results showed that the landslide exhibited a time-variable response to reservoir water fluctuation and rainfall, with evolution consisting of three stages that are sensitive to different triggers. The monitoring approaches used in this study are essential for understanding the time-variable pattern of colluvial landslides and for early warning for risk mitigation.
Article
Multidisciplinary Sciences
Hongyu Chen, Jianhua Zou, Xinghua Wang, Peng Lv, Zefu Tan, Longfei Cheng, Qiang Wei
Summary: Landslides are common geological hazards in the Three Gorges Reservoir Area (TGRA), and understanding their deformation mechanisms is crucial for prevention and control. This study focuses on the Zhangjiacitang landslide and analyzes the relationship between deformation and water level fluctuations and rainfall. The findings suggest that heavy rainfall is the main trigger for the landslide deformation, while the impact of water level changes is more complex. Monitoring during heavy rainfall and rapid water level decline periods is necessary.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Environmental
Xiaoxu Xie, Deying Li, Fasheng Miao, Liangxuan Yan, Chin Leo, Yiqing Sun
Summary: This study focuses on measures to prevent and control deep-seated colluvial landslides using the Kangjiapo landslide in China as a case study. Field investigations, monitoring, and tests were conducted to identify the characteristics and mechanisms of the landslide. The research found that the landslide deformation was not uniform and the likelihood of failure was low. The reactivation of the Kangjiapo landslide was attributed to factors such as the decline of reservoir water level, a steep sliding surface, and a sliding zone with low strength. Mitigation measures such as stabilizing piles, BeiDou Navigation Satellite System, and MEMS inclinometer were proposed to reduce the landslide risk.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Engineering, Environmental
Maolin Deng, Xiaohu Huang, Qinglin Yi, Yiliang Liu, Wu Yi, Haifeng Huang
Summary: The study shows that the deformation of the Tanjiahe landslide is affected by the reservoir water level and rainfall. The landslide exhibits significant deformation during the high reservoir water level and subsequent declining water level stages, lasting for about 7 months. Each year, the landslide displacement continues to increase, indicating potential slope instability. However, the deformation rate is gradually decreasing, and the probability of large-scale sliding is low.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Engineering, Environmental
Li Wang, Yushan Chen, Shimei Wang, Fei Guo
Summary: This study investigates the deformation mechanism of the Tanjiawan landslide in the Three Gorges Reservoir Area (TGRA) by analysing various types of monitoring data. The landslide has experienced significant deformation since 2014, with severe deformation and appeared tension cracks caused by subsequent rainfall events. The active and secondary deformation zones are defined by the slope structure and rainfall. The surface displacement of the landslide is step-like, controlled by rainfall. The deformation of the landslide leads to cracks and dominant seepage channels, with increased groundwater level and hydrodynamic pressure activating the deformation. Seismic data and soil moisture content change rate can be used for reliable early warnings of landslide instability.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Engineering, Environmental
Y. Dong, Z. Liao, J. Wang, Q. Liu, L. Cui
Summary: This paper investigates the potential sliding process of the Huangtupo landslide in the Three Gorges Reservoir area and determines the shear strengths of the soils in the sliding zone through laboratory experiments. The study reveals that retrogressive landslides are more harmful than thrust-type landslides in multi-stage landslide events, and the consequences are more severe when sliding masses share common sliding surfaces.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2023)
Article
Engineering, Geological
Chao Zhou, Ying Cao, Xie Hu, Kunlong Yin, Yue Wang, Filippo Catani
Summary: This study proposes a new method to obtain dynamic landslide hazard maps by utilizing ground deformation measured by SAR imagery. By combining spatial probability of landslide occurrence and temporal probability under different rainfall conditions, a preliminary hazard map is initialized. The final hazard map is determined by considering deformation velocities. The proposed method reduces false-negative and false-positive errors in landslide hazard mapping and provides higher accuracy.
Article
Engineering, Geological
Wengang Zhang, Wang Lu, Luqi Wang, Yanbin Ma, Qinwen Tan, Yanmei Zhang
Summary: This study proposes a numerical approach for simulating impulse waves triggered by landslides in the Three Gorges reservoir area. The approach combines a nonlinear shallow water equation and a progressive landslide model, and has been validated through simulations of a specific landslide event. The results demonstrate the feasibility of the proposed method for estimating landslide-generated waves and facilitating the prevention and mitigation of geological hazards.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2023)
Article
Engineering, Geological
Chenyang Zhang, Yueping Yin, Hui Yan, Huaxiu Li, Zhenwei Dai, Nan Zhang
Summary: This study focuses on the reactivation characteristics of ancient large-scale landslides in the Three Gorges Reservoir region and the influence of hydrological inducing factors on landslide deformation. Through the analysis of the Taping landslide, it is found that different hydrological factors have varying effects on the movements within different subzones of the landslide.
ENGINEERING GEOLOGY
(2021)
Article
Engineering, Environmental
Dengfeng Zhu, Kun Song, Jingchao Mu, Haifeng Huang, Hongjian Du, Fanzhe Xiazhuang, Chi Sun
Summary: Climate change has caused an increase in extreme rainfall and snowfall around the world, such as in the Three Gorges Reservoir area. The combination of high water levels and heavy precipitation creates a special hydrological environment, leading to geological disasters like the Yanguan landslide. Through field investigations and numerical simulations, the combined effects of high water and heavy precipitation can be analyzed and evaluated.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Zongxing Zou, Huiming Tang, Robert E. Criss, Xinli Hu, Chengren Xiong, Qiong Wu, Yi Yuan
Summary: Field observations of Shuping landslide revealed that displacement velocity is mainly influenced by reservoir level, with rainfall having a minor impact. The instability of Shuping landslide was triggered shortly after the reservoir was impounded to 135 m, with cyclical water level fluctuations causing periodic increases in displacement. Corrective transfer of earth mass from the driving section to the resisting section successfully reduced the deformation of the landslide.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2021)
Article
Engineering, Environmental
He Yang, Minggao Tang, Qiang Xu, Xianxuan Xiao, Huajin Li
Summary: This paper investigates the influence of the fluctuations in water level of the Three Gorges Reservoir on the seepage field in the slopes, and proposes a modified analytical solution to accurately determine the location of the groundwater saturation line, which is crucial for evaluating and predicting landslide stability. The relationship between water yield, permeability coefficient, and porosity of landslides in the reservoir area is studied through indoor tests, and a formula for the water yield of soil-rock mixture is proposed.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Engineering, Geological
Ye Li, Lixia Chen, Kunlong Yin, Yu Zhang, Lei Gui
Summary: This study analyzes the risk of landslide-triggered hazard chain through a case study in the Three Gorges Reservoir area, China, proposing a framework for hazard and risk identification, analysis, consequence analysis, and risk estimation. Monitoring data indicates the significant influence of reservoir level fluctuation on landslide stability. Hazard predictions are made through landslide stability calculation, run-out analysis, and tsunami propagation simulation based on defined scenarios.
Article
Environmental Sciences
Junying Cheng, Xiaoai Dai, Zekun Wang, Jingzhong Li, Ge Qu, Weile Li, Jinxing She, Youlin Wang
Summary: This study analyzed the landslide susceptibility in the Three Gorges Reservoir region of the Yangtze River using machine learning models. The results identified five categories of influencing factors and showed that SVM model performed the best in terms of generalization ability and robustness, making it suitable for real-time assessment of regional landslide susceptibility.
Article
Geosciences, Multidisciplinary
Ekrem Canli, Bernd Loigge, Thomas Glade
Article
Geography, Physical
Elmar M. Schmaltz, L. P. H. Van Beek, Thom A. Bogaard, Sabine Kraushaar, Stefan Steger, Thomas Glade
EARTH SURFACE PROCESSES AND LANDFORMS
(2019)
Article
Environmental Sciences
Li De-ying, Sun Yi-qing, Yin Kun-long, Miao Fa-sheng, Thomas Glade, Chin Leo
JOURNAL OF MOUNTAIN SCIENCE
(2019)
Article
Engineering, Environmental
M. J. Stumvoll, E. Canli, A. Engels, B. Thiebes, B. Groiss, T. Glade, J. Schweigl, M. Bertagnoli
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2020)
Article
Engineering, Geological
Juan Du, Thomas Glade, Tsehaie Woldai, Bo Chai, Bin Zeng
ENGINEERING GEOLOGY
(2020)
Article
Engineering, Geological
Yu Zhang, Deying Li, Lixia Chen, Kunlong Yin, Lili Xiao, Xiaolin Fu, Thomas Glade, Chin Leo
ENGINEERING GEOLOGY
(2020)
Editorial Material
Geosciences, Multidisciplinary
James Goff, Harsh K. Gupta, Thomas Glade
Article
Geography, Physical
Stefan Steger, Elmar Schmaltz, Thomas Glade
Article
Green & Sustainable Science & Technology
Valentina Gallina, Silvia Torresan, Alex Zabeo, Andrea Critto, Thomas Glade, Antonio Marcomini
Article
Environmental Sciences
Qigen Lin, Ying Wang, Thomas Glade, Jiahui Zhang, Yue Zhang
Article
Engineering, Geological
Juan Du, Kunlong Yin, Thomas Glade, Tsehaie Woldai, Bo Chai, Lili Xiao, Yang Wang
ENGINEERING GEOLOGY
(2020)
Article
Geography, Physical
Stefan Haselberger, Lisa-Maria Ohler, Robert R. Junker, Jan-Christoph Otto, Thomas Glade, Sabine Kraushaar
Summary: This study investigated small-scale biogeomorphic interactions on proglacial slopes by setting up erosion plots along a plant cover gradient. The results showed that there were two significant declines in geomorphic activity when plant cover exceeded 30% and 75% respectively. Analysis of vegetation composition and environmental conditions revealed the impact of high-magnitude geomorphic events on the environment and species communities.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Engineering, Geological
Juan Du, Xushan Shi, Bo Chai, Thomas Glade, Zhengpeng Luo, Li Zheng, Bo Liu
Summary: This study investigates the progressive failure mechanism of translational rockslides and proposes an analytical method based on force and energy equilibrium to evaluate their stability and displacement. The method is validated using a real case study and it is found that hydrostatic pressure and shear surfaces are the primary impetus for accelerated deformation and failure development.
Article
Chemistry, Multidisciplinary
Hongwei Jiang, Yuanyao Li, Chao Zhou, Haoyuan Hong, Thomas Glade, Kunlong Yin
APPLIED SCIENCES-BASEL
(2020)
Article
Multidisciplinary Sciences
Yu Zhang, Deying Li, Lixia Chen, Kunlong Yin, Lili Xiao, Xiaolin Fu, Thomas Glade, Chin Leo