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Study On Three-dimensional Dynamic Regularity Of The Stope Support Load On Longwall Face

Posted on:2011-11-06Degree:MasterType:Thesis
Country:ChinaCandidate:M Y LiuFull Text:PDF
GTID:2121360305971591Subject:Mining engineering
Abstract/Summary:PDF Full Text Request
2~# coal seam 10201 mechanized mining working face is the first face in SDIC of Tashan coal mines. In order to better grasp the 2~# seam regularity of the support load distribution, seek the safe operation of powered support and guide the follow-up face of manufacturing layout. On the SDIC 10201 working face of Tashan coal mines pressure observation. In this paper, SDIC 10201 working face of Tashan coal mines 2~# coal seam as a typical project,through on-site drilling and sampling,and conduct laboratory experiments to determine the 2~# coal seam and its roof and floor rock parameters of physical and mechanical properties. According to longwall face mining conditions, to determine pressure observation implementation. As a result of more than 700m continuous observations received a large number of pressure observation raw data. This article on the basis of measured pressure data mine 2~# coal seam 10201 fully mechanized coal face hydraulic end support to the resistance of rock pressure curve. Focus on a detailed analysis of three-dimensional dynamic stope roof pressure distribution. The main conclusions in this paper are as follows:1,By SDIC of Tashan 2~# coal seam mechanized mining working face pressure observation, using 3dsmax software to modeling and analyze three-dimensional dynamic regularity of the stope support load distribution,to mining stress on basic theoretical research and to make supplementary guidance practice.2,Initial pressure on the roof to determine the three-dimensional dynamic distribution. Roof has been pressure on the dynamic three-dimensional distribution of a series of important ideas and knowledge. The initial draw three-dimensional dynamic stope roof pressure distribution of the law has the "Orthogonal Veinlike mountains" features.3,In engineering applications,identified SDIC of Tashan coal mines 10201 working face Face step away from the top first collapse;roof weighting step and to compressive strength; to determine the type of roof level. To prevent major disasters,and guidance on-site roof to provide a scientific basis for production. 4,Used the Uroica infrared data acquisition system to pressure observation. on longwall face pressure observation data analysis, focus on the Roof dimensional dynamic pressure distribution.5,According to dynamic analysis,dynamic roof pressure distribution of support load, the end of each measuring point support resistance Mine Roof Pressure Curve and three-dimensional dynamic pressure distribution map from different observation view research and analysis, the last of the papers of Buzu and 3dsmax software in Mining Engineering in prospected. and the lack of thesis and 3dsmax software application in mining engineering prospected.
Keywords/Search Tags:Stope, Longwall Face, Mine pressure observation, roof pressure, pressure regularity, Three-Dimensional Distribution
PDF Full Text Request
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