1)pressure relief卸压
1.Combining the maintenance principle of pressure relief and support,the principle of pressure–relief support is interpreted with the consideration of wall rock creeping and pressure relief.根据凤凰山煤矿现场实际,分析了以往巷道支护破坏原因,结合卸压和支护的维护原则,阐述围岩蠕变卸压支护方式的原理及卸压支护参数的确定,成功地在2322工作面上回风巷进行沿空掘巷卸压支护。
2.Based on theories of the elasticity, rock mechanics, damage mechanics, seepage mechanics and ect, using theory analysis, similar simulation test, numerical Simulation, field application, the paper studies on pressure relief characteristic, move deformation, fracture developmentand seep characteristic of underlying coal-roc.本文利用弹性力学、岩体力学、损伤力学和渗流力学等相关理论,通过理论分析、相似模拟试验、数值模拟和现场试验等研究手段,系统研究上保护层开采后下伏煤岩体的卸压特征、移动变形、裂隙发育、渗流特征、下被保护层瓦斯流动规律及煤层卸压瓦斯抽采方法,其研究成果对煤与瓦斯突出矿井安全生产及煤矿的可持续发展具有重要的意义。
3.In certain altitude range, pressure relief effect happens on the coal-rock masses in the“three zones”, which makes a good and active effect to the gas control of outburst coal seams.在工作面采动影响下,采场围岩应力重新分布,上覆岩层垮落后形成垮落带、断裂带及弯曲带,在一定高度范围内,处于“三带”内的煤层能够获得卸压效应,这对上覆煤岩体内突出煤层的瓦斯治理可以起到积极的作用。
英文短句/例句
1.LOGISTRIP automatic system油船自动装卸压载系统
2.Study on Design of Unloading System of Wood-based Panel Press人造板热压机卸压机构的设计和研究
3.Reactor Containment Decompression and Filtration in Qinshan NPP Phase Ⅱ;秦山二期安全壳超压后的过滤及卸压
4.Simulation Research on the Dynamicproperty of On-Off Cartridge Valve and the Pressuer Descending Property of Unloading Cartridge Valve插装阀动特性与液压机预卸荷插装阀组卸压特性仿真研究
5.The principle and application of automatic cut-off device for pressure relief of accumulator蓄能器卸压自动截止装置原理及应用
6.Research and Application of Hydraulic Flushing Improving Permeability and Relieving Pressure Technology水力冲孔卸压增透技术的研究与应用
7.Remove volt/amp tester.拆卸电压/电流测试器。
8.hydraulic hitch system with unloading function卸荷式液压悬挂系统
9.taper coordinated oil-pressure dismantler锥度配合油压拆卸工具
10.air driven rockerloader压气式铲斗后卸装载机
11.pressure regulator of engine unloading valve发动机卸荷阀调压器
12.Remove the high pressure choke and kill hoses from the slip joint.从伸缩节上卸开高压放喷和压软管。
13.The Simulation of the Main Hydraulic Cylinder Unloading Impact on 15MN Forging Machine15MN锻造液压机液压系统卸荷冲击仿真
14.Air compressor found abnormal, dismantled, checked, repaired and reassembled.发现空压机不正常，已进行拆卸、修、复。
15.Remove turbocharger oil feed line.拆卸透平增压器输油管路。
16.Hydraulic Valve Tappet Removal/Installation Tool液压阀推杆拆卸/安装工具
17.Do not remove collar bushing with valve under pressure.在阀门处于压力状态下,不要拆卸轴环。
18.Remove the relief valve cover bolts while holding the cover down.边压住阀盖，边拆卸安全阀阀盖螺栓。
相关短句/例句
pressure release卸压
1.Application of well washing technology without pressure release in high pressure water injection well;高压注水井不卸压洗井技术的应用
3)stress-relieve卸压
1.Taking tashan Mine as a example,according to the analysis based on the Characteristics of the Cracks in Stopes,experimental research of stress-relieve gas drainage is worried about.以塔山矿为例,在采场裂隙特征分析基础上,实施采场卸压瓦斯抽放试验。
4)decompression rate卸压速率
5)stress-relief of gangue dropping放矸卸压
6)pressure relief support卸压支护
1.A technical study on pressure relief support in driving roadway along the goaf;沿空掘巷卸压支护技术研究
2.Under the I-beam steel erecting shed support in the composite roof and pressure centralized area,the pressure relief support and archor belt strengthening support are applied.在复合顶板及压力集中区域内用工字钢架棚支护方式下,采用卸压支护及锚带加强支护技术,减轻了棚子的压力,有效地控制了棚子变形,满足了支护的要求。
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。
