A Research into Extra-thick compound mudstone roof roadway failure mechanism and security control
نویسندگان
چکیده
منابع مشابه
Deformation mechanism and optimum design for large cross-sectional longwall installation roadway under compound roof
Both the deformation characters and the failure mode of the large cross-sectional longwall installation roadway under compound roof are becoming an emergent issue than ever before due to the rapid development of modern mining equipment. Various engineering applications have revealed that the insufficient design and inappropriate support technology are the main reasons for the fatal accidents as...
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Original scientific paper With the increase in mining depths and the occurrence of worsening conditions, deep, large-scale and rapid mining may lead to more complicated dynamic features for tunnels, making them vulnerable to dynamic disasters such as rock bursts and coal/gas outbursts with subsequent heavy damage and casualties. A three-dimensional structural mechanics model for deep stopes was...
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DHIPC (2,4-dichloro-2´-hydroxyl-4´,6´-diisoprenyloxychalcone) is a new chalconecompound. In this study, its antidepressant-like activity of compound DHIPC was evaluated bythe forced swimming test and the tail suspension test in mice. The results showed that DHIPCsignificantly reduced the immobility time for 2 h after treatment through the oral administrationat dose of 10, 20, and 30 mg/kg in th...
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ژورنال
عنوان ژورنال: Procedia Engineering
سال: 2011
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2011.11.2200