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。
2) 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。
补充资料：冲击波超压与动压