卸压瓦斯带,destressing gas zone
1)destressing gas zone卸压瓦斯带
1.Width ofdestressing gas zone in coal ribs:theoretical analysis and its application煤巷两帮卸压瓦斯带宽度理论分析及应用
英文短句/例句
1.Width of destressing gas zone in coal ribs:theoretical analysis and its application煤巷两帮卸压瓦斯带宽度理论分析及应用
2.Study on the Disposed Methane Drainage Technology of Fully Mechanized Caving Face高瓦斯综放工作面卸压瓦斯抽采技术研究
3.Analysis on Mining Released Gas Sources for Surface Borehole Drilling and Gas Drainage地面钻井抽采采动卸压瓦斯来源分析
4.Extraction Mechanism of Relieved Gas from Low Permeability Seam低渗透性煤层卸压瓦斯抽采机理研究
5.Pressure releasing and gas drainage with long bore hole in roof overburden of fully mechanized caving face综放面顶板覆岩走向长钻孔卸压抽放瓦斯研究
6.The borehole must be drilled at correct place，and the gas pressure will be relieved.没有卸不了压的瓦斯，只有打不到位的钻孔。
7.Study on Technology of Surface Drillings Draining Pressure Relief Gas of Coal Seam by Protected;地面钻孔抽采被保护层卸压瓦斯技术研究
8.The Theory and Technology Study on Pressure Relief and Permeability Enhancements of the Coal Seam with High Concentration of Gas and Low Permeability高瓦斯低透气性煤层卸压增透理论与技术研究
9.Experiment on Working Seam Advanced Pressure Releasing and Gas Drainage in Shigang Mine石港煤矿本煤层超前卸压瓦斯抽采试验
10.Test on Pressure Released Blasting Applied to Seam Opening of Cross-Cut in High Gassy and Low Permeability Seam高瓦斯低透气性煤层石门揭煤卸压爆破试验
11.Pressure Relief Functional Principle of Stope Underlying Coal-Rock Mass and Application in Gas Extraction of Protected Coal Seam;采场下伏煤岩体卸压作用原理及在被保护层卸压瓦斯抽采中的应用
12.Research on Overlying Rock-Coal Failure and Deformation Caused by Mining Protecting Strata, and Relieved Methane Drainage;下保护层开采上覆煤岩变形与卸压瓦斯抽采研究
13.Study on Technology of Bores Through Coal and Rock Seams Draining Long Distance Pressure Relief Gas in Bed Plate Tunnel;底抽巷上向穿层钻孔抽放远程卸压瓦斯技术研究
14.Research on Rock Structure Evolution Caused by Mining of Protecting Strata and Relieved Methane Drainage;下保护层开采覆岩结构演化及卸压瓦斯抽放技术研究
15.Study on the Law of Mining-induced Fracture Evolution of Overlying Strata and Relieved Methane Delivery and Its Engineering Application in Fully-mechanized Top Cola Caving综放开采覆岩裂隙演化与卸压瓦斯运移规律及工程应用
16.Change Rule of Initial Speed of Gas Emission From Borehole in Outburst Coal Seam Before and After Pressure Relief突出煤层卸压前后钻孔瓦斯涌出初速度的变化规律
17.Construction Technology to Pressurized Seal High Pressure Gas and Sulphuretted Hydrogen Gas in Underground Mine煤矿井下带压封堵高压瓦斯及硫化氢施工技术
18.Application of Pressurized Cementation Sealing Technology with Casing to Gas Pressure Measurement套管带压固结封孔技术在瓦斯压力测定中的应用
相关短句/例句
relieved methane卸压瓦斯
1.Technique of drawingrelieved methane and simultaneous extraction of coal and coakbed methane;卸压瓦斯抽取及煤与瓦斯共采技术研究
3)pressure relief gas卸压瓦斯
1.This paper mainly researches on the technique of draining long distancepressure relief gas in bed plate tunnel under the circumstance of mining protective coal seam.本论文主要是针对远程下保护层开采条件下，对底抽巷上向穿层钻孔抽放远程卸压瓦斯技术进行了深入的研究。
4)relieved gas delivery卸压瓦斯运移
1.After mining in methane-rich thick seams,the law ofrelieved gas delivery in coal and rock mass is closely related to its permeability,which is influenced by the change of abutment pressure.富含瓦斯厚煤层综放开采后,煤岩体中的卸压瓦斯运移规律与其渗透性密切相关,而支承压力变化又对渗透性有很大的影响,即采场卸压瓦斯的运移规律明显受支承压力的影响。
5)relieved methane drainage卸压瓦斯抽放
6)pressure relief gas drainage卸压瓦斯抽采
延伸阅读
冲击波超压与动压
[解释]：核爆炸产生的高温、高压火球膨胀，在周围介质中形成连续向外传播的压力脉冲（或冲击波），冲击波阵面传播到空间某点时，超过周围环境大器的压力称超压；空气粒子高速随波阵面运动产生的冲击压力称动压。超压和动压都以帕斯卡（Ｐａ）为主单位。超压随时间的变化取决于爆炸威力、距爆点的距离和爆心周围的介质情况。特定地点的峰值超压一般出现在冲击波阵面到达该点的瞬间，超压在该点的持续时间称为正压作用时间。尔后，该点的压力下降到低于周围压力，称为负压，再逐渐回升到周围压力值。对人员的直接冲击伤，超压为２０—２９千帕可引器轻度伤；２９—５９千帕可导致中度伤；５９—９８千帕可造成重度伤；大于９８千帕可造成极重度伤。动压为１０—２０千帕可造成中度伤；２０—３９千帕可造成重度伤；大于３９千帕可造成极重度伤。动压的推动、抛掷和超压的挤压会造成物体变形和毁坏。
