Study on the Fissure Rate in the Roof Strata of Excavated Coal Seams

In the past decades,the intense excavation of coal resources in China has induced a series of severe waterrelated disasters or problems,such as water burst accidents,severe groundwater depletion and contamination.All of these problems were caused by the structural changes of roof rocks or bed rocks...

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Bibliographic Details
Published in:Acta geologica Sinica (Beijing) 2015-12, Vol.89 (6), p.2090-2090
Main Authors: Fawang, ZHANG, Li, CHEN, Hongchao, YAO, Zhantao, HAN, Long, QIAN, Liang, CHEN, Chengchao, JIANG
Format: Article
Language:English
Subjects:
围岩开挖
岩层结构
煤炭资源
突水事故
结构变化
裂隙率
采煤层
顶板岩层
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Summary:In the past decades,the intense excavation of coal resources in China has induced a series of severe waterrelated disasters or problems,such as water burst accidents,severe groundwater depletion and contamination.All of these problems were caused by the structural changes of roof rocks or bed rocks induced by coal excavation.The structure of collapsed roof rocks is generally classified into three zones：falling zone.
ISSN:1000-9515
1755-6724
DOI:10.1111/1755-6724.12622