Stabilization of a highway with piles in a landslide area

2004 ◽  
pp. 1697-1700
Author(s):  
C Anagnostopoulos ◽  
K Georgiadis
Keyword(s):  
Landslide Area

Bohyně in Děčín district - the largest landslide area in the Czech Republic

2017 ◽  
Author(s):  
Oldřich Krejčí ◽  
Vladimíra Krejčí ◽  
Petr Kycl ◽  
Martin Paleček ◽  
Jan Rybář
Keyword(s):  
Czech Republic ◽  
Landslide Area ◽  
The Czech Republic

scholarly journals A method for predicting shallow landslide area in managed and unmanaged forests

2017 ◽  
Vol 10 (2) ◽  
pp. 92-99
Author(s):  
Chie KUROIWA ◽  
Shinya HIRAMATSU ◽  
Taijiro FUKUYAMA
Keyword(s):  
Shallow Landslide ◽  
Landslide Area

scholarly journals Underground Temperature Survey in and around the Landslide Area (7)

Landslides ◽  
1974 ◽  
Vol 11 (3) ◽  
pp. 23-31
Author(s):  
Atsuo TAKEUCHI
Keyword(s):  
Landslide Area ◽  
Area 7

scholarly journals Development Trend and Stability Analysis of Creep Landslide With Obvious Slip Zone Under Rainfall-Taking Xinchang Xiashan Basalt Slope as an Example

2022 ◽  
Vol 9 ◽  
Author(s):  
Chunyan Bao ◽  
Lingtao Zhan ◽  
Yingjie Xia ◽  
Yongliang Huang ◽  
Zhenxing Zhao
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Stability Analysis ◽  
Soil Layer ◽  
Heavy Rain ◽  
Development Trend ◽  
Sliding Surface ◽  
Landslide Area ◽  
Finite Element Software ◽  
Sliding Zone

The creep slope is a dynamic development process, from stable deformation to instability failure. For the slope with sliding zone, it generally creeps along the sliding zone. If the sliding zone controlling the slope sliding does not have obvious displacement, and the slope has unexpected instability without warning, the harm and potential safety hazard are often much greater than the visible creep. Studying the development trend of this kind of landslide is of great significance to slope treatment and landslide early warning. Taking Xiashan village landslide in Huishan Town, Xinchang County, Zhejiang Province as an example, the landslide point was determined by numerical simulation in 2006. Generally, the landslide is a typical long-term slow deformation towards the free direction. Based on a new round of investigation and monitoring, this paper shows that there are signs of creeping on the surface of the landslide since 2003, and there is no creep on the deep sliding surface. The joint fissures in the landslide area are relatively developed, and rainfall infiltration will soften the soft rock and soil layer and greatly reduce its stability. This paper collects and arranges the rainfall data of the landslide area in recent 30 years, constructs the slope finite element model considering rainfall conditions through ANSYS finite element software, and carries out numerical simulation stability analysis. The results show that if cracks appear below or above the slope’s sliding surface, or are artificially damaged, the sliding surface may develop into weak cracks. Then, the plastic zone of penetration is offset; In the case of heavy rain, the slope can unload itself under the action of rainfall. At this time, the slope was unstable and the landslide happened suddenly.

scholarly journals A Typical Basalt Platform Landslide: Mechanism and Stability Prediction of Xiashan Landslide

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Yongliang Huang ◽  
Zhiwei Sun ◽  
Chunyan Bao ◽  
Man Huang ◽  
Anyuan Li ◽  
...  
Keyword(s):  
Rainfall Intensity ◽  
Influencing Factor ◽  
Heavy Rain ◽  
Element Model ◽  
Maximum Tensile Stress ◽  
Natural State ◽  
Landslide Area ◽  
Rainfall Frequency ◽  
Geological Conditions ◽  
Rainfall Statistics

The Xiashan landslide, which is classified as a typical basalt platform landslide, is the most massive landslide in Zhejiang Province, China. Once sliding occurs, it will pose a severe threat to the life and property of downstream residents and the nearby section of Hangzhou-Taizhou Expressway. On the basis of the geological conditions, present situation, and latest monitoring data of the landslide, this study finds that rainfall is the main influencing factor, and the creep mode is the main prediction mode of its subsequent deformation. The rainfall statistics of the landslide area in the past 30 years show that the rainfall and rainfall frequency in the landslide area display an increasing trend. The probability of heavy rain with rainfall intensity of 100–250 mm/day in the landslide area is very high. On this basis, combined with the numerical analysis method, a finite element model of the slope considering rainfall and groundwater conditions is constructed to analyze the causes and failure mechanism of this landslide comprehensively. Results indicate that the maximum tensile stress at the top of the trailing edge under the natural state is 5.10 MPa, which is very close to the saturated tensile strength of rock mass. Thus, tensile cracks are easily generated and developed, thereby causing the failure mode to be the hydraulic driving type. Also, with the increase in rainfall intensity, the slope plastic strain increases and the slope plastic zone develops and extends until it is completely penetrated. When the rainfall intensity is more than 200 mm/day, the slope safety factor is close to unity, and the slope approaches a failure condition. Therefore, the landslide should be controlled through water treatment and integrated with engineering measures.

scholarly journals Optical Crackmeter for Retaining Wall in a Landslide Area Using Computer Vision Technology

2021 ◽  
Vol 33 (3) ◽  
pp. 995
Author(s):  
Yu-Chin Chen ◽  
I-Hui Chen ◽  
Jun-Yang Chen ◽  
Miau-Bin Su
Keyword(s):  
Computer Vision ◽  
Retaining Wall ◽  
Landslide Area ◽  
Computer Vision Technology

scholarly journals 3D ESTIMATION OF SLOW GROUND MOTION USING INSAR AND THE SLOPE ASPECT ASSUMPTION, A CASE STUDY: THE PUNCAK PASS LANDSLIDE, INDONESIA

2019 ◽  
Vol IV-2/W5 ◽  
pp. 623-630
Author(s):  
N. H. Isya ◽  
W. Niemeier ◽  
M. Gerke
Keyword(s):  
Continuous Monitoring ◽  
Nearest Neighbor ◽  
Primary Objective ◽  
Ground Movement ◽  
Slope Aspect ◽  
Main Body ◽  
Landslide Area ◽  
Phase Filter ◽  
Active Landslide

<p><strong>Abstract.</strong> The Indonesian Centre of Volcanology and Geological Hazard Mitigation classified the Ciloto district as one of the most landslide prone areas in Indonesia. Some evidence of ground movement and the landslide failures occurred in recent years. Thus, continuous monitoring is necessary for supporting the precautions of an upcoming landslide. This study applies Small Baselines - Slowly Decorrelated Phase Filter (SDPF) for InSAR processing both for the ascending and the descending data. The primary objective is to generate horizontal and vertical components of InSAR results from two different tracks and slope aspect information in order to retrieve a projection to the northward direction. We used the available Sentinel-1 SAR data from 2014 until 2018. Combination of two orbits is approached by the surface and the nearest-neighbor gridding method. The 3D components were examined at the Puncak Pass, Ciloto, an active landslide area. For the case study area, it appeared that soil materials transferred slowly from the top of main body landslide to the accumulated zone near to the buildings owned by a local resort. The cumulative 3D displacements for three years were computed for the depleted zone: it moved &amp;minus;47, 23, &amp;minus;10 mm for dU, dE and dN, respectively. Meanwhile, the accumulated zone was considered having the up-lift motion to maximum 43, &amp;minus;13, 7 mm, respectively.</p>

Sign in / Sign up

Export Citation Format

Share Document