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- Keywords safety;grunting;rock strata control;separating location; 安全;注浆充填;岩层控制;离层位置;
- Keywords Ground pressure;Rock strata control;Support;Depressurization; 地压;岩层控制;支护;卸压;
- rock strata control 岩层控制
- To expose(rock strata)by erosion. 剥蚀因腐蚀而露出(石层)
- To expose(rock strata) by erosion. 剥蚀因腐蚀而露出(石层)
- A horizontal dislocation, as of a rock stratum, at a fault. 水平断层不正常的岩层水平变位或断错
- A horizontal dislocation,as of a rock stratum,at a fault. 水平断层不正常的岩层水平变位或断错
- To lie at an angle to the horizontal plane, as a rock stratum or vein. 下沉从地平线下降,如岩石层或岩脉
- An aquifer is a water-bearing rock stratum such as sandstone and chalk. 地下蓄水层是一些有水的岩石层, 如沙岩和白垩岩。
- The results show that the key strata control the emergence, development and space-time distribution of the overburden bed separations and fractures. 结果证明:覆岩关键层对离层及裂隙的产生、发展与时空分布起控制作用。
- Strata control system belongs to grey system because its position, structure and boundary condition are difficult to describe precisely. 岩层控制系统的状态、结构和边界条件难以精确描述,属本征性灰色系统。
- FU Qiang,WU Jian.Research on the drawing technology of thinner top-coal in longwall sublevel caving mining[J].Ground Pressure and Strata Control,2000,17(3):2-6. [7]富强;吴健.;顶煤较薄煤层综放开采放煤工艺研究[J]
- A broad tract of land in which the rock strata are tilted toward a common center. 盆地岩层向共同的中心倾斜的广大陆地区域
- Another possibility could be that measurements may not yet have been taken from the correct rock strata. 也还有其他的可能,就是目前尚未针对正确的岩层量测数据。
- Regularity of rock strata movement will be changed by effect of geodynamic underground mining. 在地质动力的作用下,矿山地下开采正常的岩层与地表移动规律将发生变化,甚至会发生突变灾害。
- The downward inclination of a rock stratum or vein in reference to the plane of the horizon. 下沉矿层或岩石相对水平面的向下倾斜。
- TBM )A tunnel boring machine ( TBM ) is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. 全断面隧道鉆掘机是一种被用来挖掘隧道的机器,他穿越不同的土层及石层用一个圆形的部分穿越。
- Red clastic rock strata are widely distributed in a lot of the Mesozoic and Cenozoic downfaulted basins in the eastern part of Qinghai. 摘要青海东部诸多中新生代断陷盆地中广泛分布着陆生红色碎屑岩地层。
- Vertical stress makes rock stratum reforming voussoir beam, horizontal in-situ stress is the main source to cause the voussoir beam crushed. 竖直方向地应力使顶板岩层形成铰接拱结构,水平地应力是拱铰压碎的主要力源。
- The major factors that affect the stability of the structure are rotational angle of the voussoir beam, ratio of length and height, rock type and height of carrying rock strata. 本文以开采后岩层移动实测的形态曲线为基础,建立了断裂岩块间的铰合关系,进一步证明了“砌体梁”力学模型是层状矿体开采后岩层的基本结构形式。