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影响综合机械化采煤因素分析
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作者 邹春禄 《中文科技期刊数据库(全文版)工程技术》 2016年第12期212-213,共2页
煤炭是我国非常重要的一项原料与基础能源,我国国民经济的飞速上升也离不开煤炭企业的迅速发展。在开采煤炭时,通过综合机械化开采技术的运用,能有效推进煤矿产业的建设,提升企业的经济效益,更能使煤矿开采变得更高效率、高产量、更安... 煤炭是我国非常重要的一项原料与基础能源,我国国民经济的飞速上升也离不开煤炭企业的迅速发展。在开采煤炭时,通过综合机械化开采技术的运用,能有效推进煤矿产业的建设,提升企业的经济效益,更能使煤矿开采变得更高效率、高产量、更安全、更洁净,这给煤矿开采打下了牢固的基础。随着我国经济与工业自动化控制技术的不断发展与进步,采煤时也更多运用上了机电自动化的技术,这对于现代化矿井的建设起着至关重要的作用,改善了矿井开采的工作条件,极大提升了资源采出率与煤矿开采的技术水平。 展开更多
关键词 综合机械化 采煤因素 措施
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影响综合机械化采煤因素分析
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作者 陈生体 《中文科技期刊数据库(全文版)工程技术》 2016年第10期215-215,共1页
煤炭是我国非常重要的一项原料与基础能源,在开采煤炭时,通过综合机械化开采技术的运用,能有效推进煤矿产业的建设,提升企业的经济效益,更能使煤矿开采变得更高效率、高产量、更安全、更洁净,这给煤矿开采打下了牢固的基础。对综采工作... 煤炭是我国非常重要的一项原料与基础能源,在开采煤炭时,通过综合机械化开采技术的运用,能有效推进煤矿产业的建设,提升企业的经济效益,更能使煤矿开采变得更高效率、高产量、更安全、更洁净,这给煤矿开采打下了牢固的基础。对综采工作面的工作效率进行评判的标准就在于工作面的生产效率以及各类设备的匹配程度和工作面管理,在实际的工作中很多的设备由于种种原因不能充分发挥自己的作用。基于此,本文就影响综合机械化采煤因素进行探究。 展开更多
关键词 综合机械化 采煤因素
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Research on the sudden changes and the controlling factors of deep coal mining conditions 被引量:2
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作者 虎维岳 董书宁 《Journal of Coal Science & Engineering(China)》 2008年第3期347-351,共5页
It was illustrated that the mining conditions inducing disasters changed with depth both in regularity of gradual and sudden change.The sudden change depth for different disaster conditions are different and controlle... It was illustrated that the mining conditions inducing disasters changed with depth both in regularity of gradual and sudden change.The sudden change depth for different disaster conditions are different and controlled by different factors.The high temperature and its change with depth are mainly controlled by strata structures and rock heat conductiv- ity property,the high rock stress and dynamical engineering disasters and their change with depth are mainly controlled by tectonic conditions,roof strata rock property and deep rock mechanical property,coal mine water disasters and their change with depth are mainly con- trolled by rock mechanical property of coal seam floor and regional groundwater circulation conditions,gas disaster conditions and their change with depth are mainly controlled by buried conditions of coal seam and opening conditions of geological structures.It is men- tioned that the key point for the control of deep coal mining disaster is to clearly understand the sudden change depth of different factors causing disasters. 展开更多
关键词 suddenly change controlling factor coal mining geological disaster
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The enrichment characteristics and geological controlling factors of coalbed methane occurrence in Laochang area, Yunnan Province
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作者 WU Cai-fang CHEN Zhao-ying +1 位作者 WANG Cong JIANG Wei 《Journal of Coal Science & Engineering(China)》 2012年第4期355-361,共7页
The enriched characters of methane content in the main coal seam of Yunnan's Laochang coal mine was analyzed through combined with the geologic conditions of the research area: structure type, hydrogeology condition... The enriched characters of methane content in the main coal seam of Yunnan's Laochang coal mine was analyzed through combined with the geologic conditions of the research area: structure type, hydrogeology condition, coal reservoir's macerals, ash, water content, and so on. The geology factors of controlling gas in Laochang coal mine were illustrated; and the different geology models of controlling gas of geologic condition coupling were posed. Research shows that, in the region, the methane contents of the main coal seams decrease gradually from middle to all around it; the northeast and southeast is higher than the west. In the local area, the methane content of anticline axis is higher, and the gas content is reduced to both wings and plunging crown. On macroscopic view, the distribution of methane content in coal-beds was controlled by structural type. On microscopic view, the methane content in coal-beds is mainly involved in coal reservoir's macerals, ash content, and water content. The enriched characters of CBM in the research area are mainly the result of structure-hydrogeology-petrophysics coupling controls of CBM. On the basis of above analysis, according to the distribution character of methane content in coalbeds, the research area was divided into low gas area, middle gas area, and high gas area. 展开更多
关键词 coalbed methane enrichment characteristics cotrolling factor Laochang area gas content geological condition
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Mechanics criterion and factors affecting overburden stability in solid dense filling mining 被引量:6
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作者 Sun Jian 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2017年第3期407-413,共7页
The effect of controlling strata movement in solid filling mining depends on the filling rate of the goal. However, the mechanical property of the overburden in the backfill stope and the designed size of the backfill... The effect of controlling strata movement in solid filling mining depends on the filling rate of the goal. However, the mechanical property of the overburden in the backfill stope and the designed size of the backfill mining workface should also be considered. In this study, we established a main roof strata model with loads in accordance with the theory of key strata to investigate the stability of the overburden in solid dense filling mining. We analyzed the stress distribution law of the main roof strata based on elastic thin plate theory. The results show that the position of the long side midpoint of the main roof strata failed more easily because of tensile yield, indicating that this position is the area where failure is likely to occur more easily. We also deduced the stability mechanics criterion of the main roof strata based on tensile yield criterion. The factors affecting the stability of the overburden in solid dense filling mining were also analyzed, including the thickness and elasticity modulus of the main roof strata, overlying strata loads, advanced distance and length of workface, and elastic foundation coefficient of backfill body. The research achievements can provide an important theoretical basis for determining the designed size of the solid dense filling mining workface. 展开更多
关键词 Filling mining Strata movement Stability control Influencing factors Size design
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RESEARCH ON DEEP COAL SEAM MINING FLOOR STARTA WATER BURSTING INFLUENCED FACTORS BASED ON ANALYTIC HIERACHY PROCESS
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作者 SUN Ming ZHENG Wenxiang DUAN Xiaobo 《International Journal of Technology Management》 2014年第4期135-138,共4页
Deep coal seam mining floor strata water bursting is a complicate nonlinear system, whose factors are coupling and influencing themselves. It built the analytic structure model for deep coal seam mining floor strata w... Deep coal seam mining floor strata water bursting is a complicate nonlinear system, whose factors are coupling and influencing themselves. It built the analytic structure model for deep coal seam mining floor strata water bursting, the judgment matrix was found by the expert scoring method, the contribution weights of the influenced factors were given out by the equation analytic process. The thirteen controlling factors and five main controlling factors were put award by analyzing weights, so the result was basically conform to the field practice. The expert scoring method and analytic process can convert the objective fact to the subjective cognition, so it is a method that can turn the qualitative into the quantitative. This can be relative objectively and precisely to study the question of many factors and grey box. 展开更多
关键词 deep coal seam mining floor strata water bursting expert scoring method equation analytic hierachy process controllingfactors main controlling factors
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