首页|A Discrete Element Analysis of the Sliding Friction Heat in High-Speed and Long-Runout Landslides

A Discrete Element Analysis of the Sliding Friction Heat in High-Speed and Long-Runout Landslides

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Earthquake is one of the main causes of high-speed and long-runout landslides.Generally,the heat generated in the sliding zone is significant in such devastating landslides.In this study,we establish a two dimensional slope model which includes 0.2 million elements to simulate the development of high speed and long-runout landslides using the discrete element software MatDEM.The model not only suggests that heat is produced by friction and fracturing,but also simulates the process of tension generation in cracks and the generation of a high heat zone near the sliding region.Besides,the heat field graph indicates a banded high heat belt that is related to the location of the thickest sliding body.The logarithms of the total calorific value and the highest value in the heat zone during the sliding process are linearly related to the logarithm of the landslide height.

MatDEMDiscrete element methodEnergyHeatLandslide

ZHU Yao、ZHU Chengguang、LIU Chun、LIU Hui、DENG Shang

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School of Earth Sciences and Engineering,Nanjing University,Nanjing 210046,China

Nanjing University High-tech Institute at Suzhou,Suzhou 215123,Jiangsu,China

This project was supported by the National Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu Provinceand Open Fund of National Laboratory for Marine Science and Tech

41977218BK20170393QNLM2016ORP01

2020

地震研究进展(英文)
中国地震局

地震研究进展(英文)

CSCD
影响因子：0.032
ISSN：2096-9996
年,卷(期)：2020.34(1)
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