Kinematic process of the catastrophic landslide through investigation and numerical simulation

Chia Ming Lo; Yen Hsiang Lin; Lun Wei Wei; Wei Kai Huang; Tien Yao Cheng; Ming Lang Lin; Jia Jyun Dong; Chyi Tyi Lee

Kinematic process of the catastrophic landslide through investigation and numerical simulation

Chia Ming Lo^*, Yen Hsiang Lin, Lun Wei Wei, Wei Kai Huang, Tien Yao Cheng, Ming Lang Lin, Jia Jyun Dong, Chyi Tyi Lee

^*Corresponding author for this work

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents results of a case study on the Hsiaolin catastrophic landslide, including its kinematic process and the geometry of deposition. Based on geomorphologic analysis, the landslide initiated in thick, multi-aged colluvium soils at the headwaters of a small stream upslope of Hsiolin village. A three dimensional discrete element program, PFC3D was used to model interaction between the landslide and the Hsiaolin village. The landslide converted from debris and rock slide to debris avalanche during the kinematic process. The predicted velocity of initial motion was about 5~10 m/sec from source area. Then the predicted velocity was higher than 30 m/sec on steep terrain, a velocity which permitted the debris to cross Qishanxi stream and destroyed downstream village.

Original language	English
Pages (from-to)	231-243
Number of pages	13
Journal	Journal of the Chinese Institute of Civil and Hydraulic Engineering
Volume	24
Issue number	3
State	Published - Sep 2012

Keywords

Catastrophic landslide
Discrete element method
Geomorphologic analysis

Cite this

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title = "Kinematic process of the catastrophic landslide through investigation and numerical simulation",

abstract = "This paper presents results of a case study on the Hsiaolin catastrophic landslide, including its kinematic process and the geometry of deposition. Based on geomorphologic analysis, the landslide initiated in thick, multi-aged colluvium soils at the headwaters of a small stream upslope of Hsiolin village. A three dimensional discrete element program, PFC3D was used to model interaction between the landslide and the Hsiaolin village. The landslide converted from debris and rock slide to debris avalanche during the kinematic process. The predicted velocity of initial motion was about 5~10 m/sec from source area. Then the predicted velocity was higher than 30 m/sec on steep terrain, a velocity which permitted the debris to cross Qishanxi stream and destroyed downstream village.",

keywords = "Catastrophic landslide, Discrete element method, Geomorphologic analysis",

author = "Lo, {Chia Ming} and Lin, {Yen Hsiang} and Wei, {Lun Wei} and Huang, {Wei Kai} and Cheng, {Tien Yao} and Lin, {Ming Lang} and Dong, {Jia Jyun} and Lee, {Chyi Tyi}",

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TY - JOUR

T1 - Kinematic process of the catastrophic landslide through investigation and numerical simulation

AU - Lo, Chia Ming

AU - Lin, Yen Hsiang

AU - Wei, Lun Wei

AU - Huang, Wei Kai

AU - Cheng, Tien Yao

AU - Lin, Ming Lang

AU - Dong, Jia Jyun

AU - Lee, Chyi Tyi

PY - 2012/9

Y1 - 2012/9

N2 - This paper presents results of a case study on the Hsiaolin catastrophic landslide, including its kinematic process and the geometry of deposition. Based on geomorphologic analysis, the landslide initiated in thick, multi-aged colluvium soils at the headwaters of a small stream upslope of Hsiolin village. A three dimensional discrete element program, PFC3D was used to model interaction between the landslide and the Hsiaolin village. The landslide converted from debris and rock slide to debris avalanche during the kinematic process. The predicted velocity of initial motion was about 5~10 m/sec from source area. Then the predicted velocity was higher than 30 m/sec on steep terrain, a velocity which permitted the debris to cross Qishanxi stream and destroyed downstream village.

AB - This paper presents results of a case study on the Hsiaolin catastrophic landslide, including its kinematic process and the geometry of deposition. Based on geomorphologic analysis, the landslide initiated in thick, multi-aged colluvium soils at the headwaters of a small stream upslope of Hsiolin village. A three dimensional discrete element program, PFC3D was used to model interaction between the landslide and the Hsiaolin village. The landslide converted from debris and rock slide to debris avalanche during the kinematic process. The predicted velocity of initial motion was about 5~10 m/sec from source area. Then the predicted velocity was higher than 30 m/sec on steep terrain, a velocity which permitted the debris to cross Qishanxi stream and destroyed downstream village.

KW - Catastrophic landslide

KW - Discrete element method

KW - Geomorphologic analysis

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M3 - Article

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SN - 1015-5856

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JO - Journal of the Chinese Institute of Civil and Hydraulic Engineering

JF - Journal of the Chinese Institute of Civil and Hydraulic Engineering

IS - 3

ER -

Kinematic process of the catastrophic landslide through investigation and numerical simulation

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Keywords

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