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- Numerical simulation of original rock stress 原岩应力的三维数值模拟研究
- The Computer Numerical Simulation of the Original Rock Stress and Laneway Wall Rock Stress 原岩应力及巷道围岩应力的计算机数值模拟
- original rock stress 原岩应力
- The original rock temperatures defined the level to which all alteration of rock temperatures must be related. 原始岩石的温度限定岩石温度的所有变化都必须关联层位。
- The Relations Between Rockburst and Surrounding Rock Stress in Underground Chambers. 地下洞室中岩爆与围岩应力的关系。
- The original rock temperatures defind the level to which all alteration of rock temperatures must be related. 岩石温度的所有变化都必然和具有原始岩石温度的层位有关系。
- Due to the effect of a flow of cool air along the rock walls, the original rock temperatures are disturbed. 由于冷空气沿岩壁流动影响,原始岩石温度受到了破坏。
- Using the elastic theory,the au-thor attempts to calculate approximately the relative change of rock stress after coalextraction. 本文试图利用弹性理论近似地计算采动后的应力相对变化。
- All experimental investigations about the geothermal conditions are based on measurements of original rock temperatures. 有关地热条件的所有实验研究都是建立在测量原始岩体温度的基础上。
- BQ method is suggested as one of favourable ways for evaluation and classification of rockmass quality in the low rock stress region. 采用岩体力学介质属性分级方法(即BQ法)对研究区引水洞、溢洪洞以及泄洪洞进口段围岩进行了岩体质量分级与评价。
- In this paper,by the monitoring of rock stress behavior around mine opening and the monitory of anchoring force,the monitoring of the bolt is realized. 本文通过对巷道围岩的变形监测、锚杆锚固力监测达到对锚杆支护质量的监测。
- Abstract: Rock stress state in situ is determined by the hydrofracturing method for rock stress measurement in a railway tunnel in northwestern Yunnan. 摘 要: 通过地应力测量,确定出工程区隧道围岩现今地壳应力状态,即原地应力的大小和方向。
- The original rock of the “Lucky Red” Sandstone is sedimentary quartzitic sandstone, which can be traced back to the Silurian period 0.438 billion years ago. 该石的原岩为沉积型石英砂岩,其形成最早可追溯至距今4.;38亿年前的志留纪时代。
- Some distribution rules of surrounding rock stress of the tunnel are summarized to provide the reasonable references to design and construction of this tunnel. 总结了该断层地段隧道围岩应力的一些分布规律,为该工程的设计和施工提供了合理的参考依据。
- Marble is the degenerative cliff that the original rock in the lithosphere forms through action of high pressure of the high temperature inside the lithosphere. 大理石是地壳中原有的岩石经过地壳内高温高压作用形成的变质岩。
- The in situ rock stress prevents the rise of confined water and water inrush for thick floor aquifuge,but for thin floor aquifuge the in situ rock stress wo... 指出对于厚底板隔水层,原岩应力起着阻止底板承压水上升和突出的作用,对于薄底板隔水层,原岩应力起着破坏底板、导致承压水突出的作用。
- The in situ rock stress prevents the rise of confined water and water inrush for thick floor aquifuge,but for thin floor aquifuge the in situ rock stress wo. 介绍了水力压裂应力测量的原理和现场测量结果,论述了煤层底板隔水层带的阻水机理和承压水沿煤层上升的机理,以及原岩应力、水压与裂隙扩展的关系。
- Whatever the straight line part of the stress-strain curve may be,it is always possible to find out the rock stress threshold by the peak value of the S-wave veloc. 试验结果表明:不论应力应变曲线上的直线部分是否明显,都可以用检测横波速度最大值的办法确定岩石的应力门槛值;并建议对求岩石泊松比的常规方法有必要进行重新调整。
- Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series. 其原岩岩石类型有火山岩,陆缘碎屑沉积岩,火山、岛弧拉斑系列或钙碱系列火山岩、蛇绿岩等。
- Most metamorphic rocks have been greatly changed and deformed that any fossils preserved in the original rocks will not be recognizable. 绝大多数变质岩曾遭受过剧烈的变化和变形,任何在原岩中保存的化石将因这种后来的变化和变形而无法辨认。