"三软"中厚煤层,three-soft"middle thick seam
1)three-soft"middle thick seam"三软"中厚煤层
1.Analysis on coal quality at light mining face in “three-soft”middle thick seam;“三软”中厚煤层轻放回采煤质问题分析
2)three-soft thick seams三软厚煤层
英文短句/例句
prehensive Gas Drainage Technology of Fully Mechanized Mining Face in Seam with Soft Roof,Soft Coal and Soft Floor三软厚煤层综采工作面瓦斯综合抽采技术
2."Three soft" in thick Coal Comprehensive mechanization mining stent selection of importance“三软”中厚煤层综采支架选型的重要性
3.Research and Application on Synthesis Technology of Extinguishing and Preventing Fire in Mechanized Caving Face of Three-soft Coal Seam“三软”易燃厚煤层自然火灾综合防治技术研究
4.Application of Fully Mechanized Mining Technology with Caving of Roof Coal in "Three Soft" Large Clined Angle Thick Coal Seam Mining综采放顶煤技术在“三软”大倾角厚煤层开采中的应用
5.The anchor net supporting application in high seam tunneling of Sanyuan coal industry锚网支护在三元煤业厚煤层巷道掘进中的应用
6.Gateway Support Modes and Parameter Optimization of Fully Mechanized Top Coal Caving Mining Face in Soft and Thick Seam软厚煤层综放工作面巷道支护形式与参数优化
7.Technology of Gas Outburst Elimination,Gas and Coal Dust Management with Water Injection in Coal Seam at Coal Face in "Three Soft" Coal Seam“三软”煤层采煤工作面煤层注水消突治理瓦斯、煤尘技术
8.Selection of Hydraulic Powered Top Coal Caving Support and Three Equipment Matching Applied to Deep Inclined Seam with Soft Roof,Soft Coal and Soft Floor大倾角三软煤层放顶煤支架选型及三机配套
9.Study on Key Technologies of Reasonable Mining in the Condition of Soft Coal, Thick-hard Roof and Contiguous Seams;软煤、厚硬顶板、极近距离煤层合理开采关键技术研究
10.Analogue Simulation Research on Roof Moving Rule of Two Soft and One Hard and Largely Inequality Depth Coal Seam in Yunmei No.1 Coal Mine云煤一矿两软一硬大厚差煤层顶板活动规律研究
11.Research on mining technology of combined mining at large inclined angle "three soft" coal seam“三软”煤层大倾角综采回采工艺研究
12.Light Drills Digs "Three soft" Coal Bed Coal Lane Tunneling Application轻型钻掘机在“三软”煤层煤巷掘进中的应用
13.Application of big-obliquity angle mining in three-soft seam in Shitai Coal Mine“三软”煤层大倾角开采在石台煤矿的应用
14.Deep "three soft" measures inclined roadway open seam of cosl-process research of technologies深部“三软”煤层斜井措施巷揭煤防突技术研究
15.Fully Mechanized Top Coal Caving Mining Technology in Combined Seams with Close Distance and with Soft Roof,Soft Coal and Soft Floor in Guobei Mine涡北煤矿近距离三软煤层合并综放开采技术
16.Research and Application of Strengthening Technology at Coal Roadway Crossing Point in "Three Soft" Coal Seam“三软”煤层煤巷交岔点加固技术研究与应用
17.Application of Coal-bearing Formation Rock Depositional Features in Three-soft Coal Seam含煤岩系沉积特征在“三软”煤层中的应用
18.Application of Triangular Drilling Rod to Gas Drainage Borehole Drilling in Medium Soft Seam三棱钻杆在中软煤层顺层瓦斯抽排钻孔的应用
相关短句/例句
three-soft thick seams三软厚煤层
3)soft thick seam软厚煤层
1.In order to solve the support difficulties of the mining gateway for the fully mechanized top coal caving mining face insoft thick seam of Zhenchengdi Mine,the numerical simulation was applied to the optimized study on the mining gateway support mode and the support parameters.为解决镇城底矿软厚煤层综放开采工作面巷道支护难题,采用数值模拟对巷道支护方式与支护参数进行了优化研究,分析了工字钢、锚杆与锚索等不同支护形式对巷道围岩变形、应力分布及塑性区范围的影响,得出了采用锚网带与锚索支护软煤巷道的优化支护参数,并进行了现场试验,验证了所选择支护参数的可行性。
4)"three soft" unsteady thick coal seam"三软"不稳定厚煤层
5)medium-thickness and high-thickness seams中厚厚煤层
6)medium-thick seam中厚煤层
1.Selection of minning technology,support method and parameters ofmedium-thick seam is introduced.介绍了中厚煤层一次采全高的回采工艺、支护方法和具体参数的选择,即工作面回采时不留底煤,增加煤炭回收率,对支柱布置形式进行改进,并在理论上进行安全系数验算。
延伸阅读
3300mm中厚板轧机(上海第三钢铁厂)3300mm中厚板轧机(上海第三钢铁厂)3300mm中厚板轧机(上海第三钢铁厂)
