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- Research on the Mechanics of the Swelling and Collapse of the Red Stratum Rock Mass in South Hunan 湘南红砂岩崩解机理研究
- red stratum rock mass 红砂岩
- Unloading rock mass mechanics II. 卸荷岩体力学2。
- The rock mass produced by an intrusive process. 侵入岩浆岩浆侵入过程中生成的岩块
- The rock mass structure can be expressed by rock stratum effect thickness influence coefficient. It is more scientific then using roof rock and sand content in the study of coal seam gas preservation. 研究表明,煤层围岩岩体结构控制了煤层瓦斯的赋存,岩体结构可用岩层效应厚度影响系数来表示,应用这一参数研究煤层瓦斯赋存比用煤层顶板岩性及含砂率更科学。
- In fact, the certain period of the "red stratum" is benefical to understand the tectonic system in the formation of Menyuan basin, it has an important meaning. 因此,尽管各家均认同其属“第三纪”无疑,但仍对其确切时代存在着较大的争论,而对其时代的确定有助于正确认识门源盆地形成时的构造背景,具有较为重要的意义。
- Simultaneously, the displacements of the rock mass were monitored. 与此同时,还对矿房围岩的变形进行了监测;
- Baste on the analysis of study contents and methods of coal faults,mechanic characteristics of rock mass in coal stratum and the theory of cause of fault formation were put forward. 本文在全面分析煤层断层研究内容、研究方法的基础上,提出加强煤系地层岩体力学性质研究、不断完善断层成因理论是煤层小断层成因预测的基础。
- A fracture or crack in a rock mass along which no appreciable movement has occurred. 裂缝,裂口岩石块中的碎片或缝隙,在其周围未发生过可被觉察到的运动
- Theory and practice of grouting drainage and anchorage of rock mass II. 岩体灌浆排水锚固理论与实践2。
- There is a large scale of dynam-relaxed rock mass lies in Daliushu dam site. 大柳树坝址区存在大面积、大范围的岩体松动破坏现象。
- Cleavage and fracture have a strong impact on blasted result for rock mass. 摘要节理裂隙对岩体爆破效果有很大的影响。
- searching coal under red stratum 红层下找煤
- The formulas of rock mass displacements and deformations are devel... 通过工程实例分析表明,理论预计结果与现场实测结果吻合。
- Accumulating sand can lead to great pressure on top of the grottoes and ponding in the rock mass. 积沙还能造成窟顶巨大压力和岩体积水。
- rock mass engineering in deep stratum 深部岩体工程
- Geologically, the rock mass of the Mogao Grottoes is semi-binder calcirudite of the quaternary sediment of very loose structure. 莫高窟岩体在地质学上属第四纪沙泥质、钙质半胶结砾岩,结构十分松散。
- Discontinuities or weakness planes are those structural features which separate intact rock blocks within a rock mass. 不连续面或弱面指在岩体内分割完整岩石的那些构造形迹。
- A rock mass of large horizontal extent bounded,especially above,by physically different material. 地层一个水平的大岩石区域,特别是在它的上面邻接的是不同物质的材料。
- The process of alternating solid rock masses is called metamorphism. 固体岩体变换的过程即所谓变质作用。