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- On the basis of the investigation,with the rockmass mechanics and numerical simulation, the mechanism of roof falling of stope and mined out area on a large scale are discussed compendiously. 根据近几年对石膏矿山的现场调查,结合岩体力学的相关理论和数值模拟技术,对石膏矿采场顶板冒落及大规模采空区顶板冒落机理作了简要探讨,据此提出了预防采空区冒落的措施。
- Eraluating the mined out area is one of effective and dependable ways for exploring placer gold. 指出以过采区为依据寻找砂金矿可靠性大，风险度小，是行之有效的途径之一。
- The technical measures of the filling of mined out area employed in Dazhuangzi Gold Mine were introduced and an assumption to improve it further was put forward. 文中叙述了大庄子金矿井下采空区充填工艺,介绍了充填过程中的技术措施,并提出了进一步改进设想。
- Spacial location of mined out areas can be tested,which will guide next designing work. 通过现场钻探验证,揭示采空区的空间位置,对下步设计工作具有指导意义。
- After the whole area had been mined out,all the miners have left. 整个地区的矿全都挖光后，所有的矿工就都离开了这里。
- After the whole area has been mined out, all the miners have left. 整个地区的矿全都挖光后，所有的矿工就都离开了这里。
- mined out area 采空区
- he geological hazards by abandoned coal mine woring in Mentougou region is very serious.In this region,high-resolution earth resistivity method has been used to detect the old mined out area. 针对门头沟区采空灾害十分严重的情况，采用二维自动地电阻率方法进行探测。
- The Navy likely will phase out large mine sweepers, but it will need ships to deploy the robotic systems, he said. 海军可能将逐步退出大型水雷,但会需要船只部署机器人系统他说。
- Statistical analysis of the character of acoustic emission for nonlinear dynamical damage in mined out areas supported by composite rock materials 岩石基复合材料支护采空区动力失稳声发射特征统计分析
- Keywords Mine areas;mined out areas;complicated physical exploration;drilling;Zhangqiu in Jinan city;Yuegongqiao; 矿区;采空区;综合物探;钻探;月宫桥;济南章丘;
- Large mining equipment cannot be operated on narrow benches. 大型采矿设备不能在窄台阶上操作。
- The chief purser assigns out area of responsibility. 乘务长给我们分配责任区域。
- Large mining claims are segregated into smaller claims. 大规模的采矿要求被分割为更小一些的要求。
- I rest under shade trees and dug out areas. 我在树荫下休息并掘地。
- mined out areas 采空区
- The lead-zinc resources related to the Qianlishan granite body in the Dongpo orefield has been mined out. 东坡矿田内与千里山岩体有关的铅锌矿产资源已近枯竭,必须对这些矿区的深部进行成矿预测,寻找可接替矿产资源。
- The company is possessed a large mine abounding with 200,000 tons of mirabilite ore,rich in ore sources and high in quality. 公司拥有一座年提升钙芒硝矿20万吨的大型矿山，矿区资源丰富，矿石品味极高。
- Rippol has also launched a new content section called “Buzzy” which are videos that were data mined out of social networks. 朋友没搭理这个不要脸的人，没几天书出来了，推荐语上赫然写着这句话，而且署名是朋友的名字。
- mining out area 采空区
