Font Size: a A A

Study On Integrated Control Technonlogy Of Rock Burst In Ji Xian Mine

Posted on:2012-07-02Degree:MasterType:Thesis
Country:ChinaCandidate:Y YuanFull Text:PDF
GTID:2211330368484450Subject:Safety Technology and Engineering
Abstract/Summary:PDF Full Text Request
Now Jixian mine is close to deep mining coal stage, burst phenomena often occurs and it is becoming severe day by day.But so far Ji Xian mine has not conducted a systematic study and taken effective measures on this issue.To tackle the situation, this article has done the following work:According to the investigating of practical geology and production conditions of Ji Xian mine , describing and observing dynamic phenomenon of the mine to find out its causes and the law.The pressure level of Ji Xian mine is strong shock, after doing a mechanical experiment on the 9th coal seam, recognizing the coal seam has a burst trend, while the accumulation of a lot of flexibility in the hard and thick sandstone roof is the major factor of rock burst.According to early predictions take special support, shallow hole blasting vibration, and other technical measures to getting rid of danger for Jixian mine rock burst, at the same time, using forecasting methods to test effects on getting rid of danger, and finally determining that the measures are practicable, playing a decisive role for the safety of coal production in Jixian mine.
Keywords/Search Tags:rock burst, comprehensive prediction, method of drilling bits, comprehensive getting rid of danger
PDF Full Text Request
Related items