Damage and fracture characteristics of the dam body under the vibration load

被引：0
|
作者：
Wu Y. [1 ]
Yao Q. [1 ,2 ]
Wu B. [1 ,3 ]
Wu C. [1 ,2 ]
机构：
[1] State Key Laboratory of Water Resource Protection and Utilization in Coal Mining, National Institute of Clean and Low Carbon Energy, Beijing
[2] School of Mines, China University of Mining and Technology, Jiangsu, Xuzhou
[3] Shendong Coal Technology Research Institute, China Energy Investment, Shaanxi, Yulin
来源：
Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering | 2024年 / 41卷 / 03期
关键词：
artificial dam body; dynamic load; mine earthquake; pillar dam; underground reservoir;
D O I：
10.13545/j.cnki.jmse.2022.0551
中图分类号：
学科分类号：
摘要：
The underground reservoir in coal mines is an important means of protecting and using the water resources of coal mines in western mining areas, and the stability of water storage structure dam is the basic rating index for the safe construction and stable operation of the underground reservoirs. Based on the engineering background of 22101 underground reservoirs at the Shangwan coal mine in the western mining region, the influence of mine vibration load at different focal locations on the coal pillar dam and artificial dam of the underground coal mine reservoir is studied with theoretical analysis and numerical simulation. The results show that the range of high-stress zone, stress concentration, and the range of plastic zone in the strike direction increase significantly after the coal pillar dam and T-shaped artificial dam are loaded by the mine vibration. The effect under the vibratory load of the near-field mine is more apparent, than that in a far-field mine, especially the dam body on the facing wave. For the far-field cyclic dynamic load disturbance, only the initial disturbance considerably weakens the force of the T-type artificial dam. © 2024 China University of Mining and Technology. All rights reserved.
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页码：561 / 569
页数：8
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