32 Result(s)
within
Jia-Wen **e
Civil Engineering
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Article
Overtop** Failure Process and Core Wall Fracture Mechanism of a New Concrete Core Wall Dam
Concrete core wall dams have emerged as a cost-effective alternative to the reconstruction of old dams. However, the flooding mechanism and flood line of these dams differ significantly from traditional earth ...
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Article
A quantitative optimization method for rockfall passive nets on high-steep slopes: case study of the Feishuiyan slope
Rockfall poses a formidable threat to the ongoing fast-paced construction of large-scale projects in uninhabited areas in high mountain valleys. In this study, an optimization method for arranging passive nets...
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Article
Gravitational Failure Occurrence and Evolution of Rock Slopes Due to Dam Construction: A Case Study of Three Reservoirs in Southwest China
The spatial distribution pattern, DSGSD characteristics and influence of the controlling factors of reservoir rock landslides were analyzed in Southwest China.
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A Method for Automatic Assessment of Rockfall Susceptibility Based on High-Resolution Point Clouds
Typical rockfall analysis requires detailed discontinuity measurements; however, the use of conventional contact approaches can be challenging on cliffs. In this study, a novel automatic method for rockfall su...
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Automatic discontinuity identification and quantitative monitoring of unstable blocks using terrestrial laser scanning in large landslide during emergency disposal
Fast and accurate assessment of slope topography and geological information and understanding of slope deformation evolution are of great significance in emergency investigation and monitoring of landslides. I...
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Article
A novel approach for slope stability evaluation considering landslide dynamics and its application to reservoir landslide
A novel and robust slope stability evaluation method based on energy method and radial slices method (RSM) is proposed and validated in terms of strength parameter sensitivity and determination of the critical...
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Article
DEM-SPH simulation for the formation and breaching of a landslide-dammed lake triggered by the 2022 Lushan earthquake
When lakes are dammed by earthquake-induced landslides, they can pose a significant threat to communities and infrastructure both downstream and upstream. To improve means for disaster prevention and mitigatio...
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Risk Assessment and Mitigation Evaluation for Rockfall Hazards at the Diversion Tunnel Inlet Slope of **chuan Hydropower Station by Using Three-dimensional Terrestrial Scanning Technology
Rockfall is a major geological disaster that frequently occurs on rock slopes in alpine and gorge regions and poses a significant threat to life and property in areas exposed to rockfall hazards. In this study...
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Preliminary analysis of a landslide-dammed lake induced by two consecutive earthquakes on June 1, 2022, Sichuan Province, China
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Article
Transport process and mechanism of the Hongshiyan rock avalanche triggered by the 2014 Ludian earthquake, China
The Hongshiyan rock avalanche is a remarkable landslide disaster with approximately volume of 12 × 106 m3, triggered by the 2014 Ms. 6.5 Ludian earthquake in Yunnan Province, China. This study conducted a compreh...
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Article
Numerical estimation of landslide-generated waves at Kaiding Slopes, Houziyan Reservoir, China, using a coupled DEM-SPH method
The intrusion of debris avalanches into reservoirs frequently occurs in mountainous regions and is a complex solid-fluid interaction. A coupled discrete element method (DEM) and smooth particle hydrodynamics (...
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Article
Influence of size gradation on particle separation and the motion behaviors of debris avalanches
Debris avalanches have complex structures due to the internal discreteness of fragmentation events. From a meso perspective, a debris avalanche is essentially a collection of debris particles of various sizes....
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Article
Numerical simulation of landslide-generated waves during the 11 October 2018 Baige landslide at the **sha River
Landslides at river embankments can block watercourses, imperiling the safety of vessels and downstream hydropower stations. The Baige landslide, which occurred on 11th October 2018, is taken as an example to ...
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Article
Geological Survey and Unstable Rock Block Movement Monitoring of a Post-Earthquake High Rock Slope Using Terrestrial Laser Scanning
Local topography and structural features of discontinuities have a great effect on the movement characteristics and failure mechanisms of the unstable rock blocks of the rock slope. By taking full advantage of...
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Article
Granular Effects on Depositional Processes of Debris Avalanches
Debris avalanches generally have massive mobility and extensive deposited area, which have strong relation to the granular effect. The granular effect is an outcome from the interaction (based on frictional me...
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Article
Preliminary analyses of a catastrophic landslide occurred on July 23, 2019, in Guizhou Province, China
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Article
Mass movement and formation process analysis of the two sequential landslide dam events in **sha River, Southwest China
The formation of the landslide dam is believed to be case-specific and closely related to the dynamics of failure mass movement and river bed topography. This study focuses on two massive landslides, which blo...
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Monitoring of displacement evolution during the pre-failure stage of a rock block using ground-based radar interferometry
As a typical abrupt geological hazard, rockfalls are widely distributed and occur frequently. It is often difficult to predict the occurrence, and therefore record and monitor the whole failure process of rock...
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Article
A Further Improved Maximum Tangential Stress Criterion for Assessing Mode I Fracture of Rocks Considering Non-singular Stress Terms of the Williams Expansion
Previous studies showed that the modified maximum tangential stress (MMTS) criterion considering two stress terms (containing r−1/2 and r1/2) of the well-known Williams series expansion can better assess the mode...
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Article
New Permeable Structure for Controlling Debris Flows in the Wenjiagou Gully
Aimed to control debris flows more effectively, we attempt to develop a new structure called a “slo** roof grill dam”, which consists of guidance walls, separation grills and lateral deposit areas. A series ...
