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- The stability of stope wall rock and obsturator is a key issue for the safty of the second stage minimg in Jinchuan no.2 digging. 金川二矿区深部开采过程中采场围岩及充填体的稳定性是二期安全生产中的关键技术问题。
- The mechanical researches showed that reducing length or increasing width of stope were propitious to improve stability of backfill and to lower filling cost. 高阶段充填体力学研究表明:缩短采场长度和增大采场宽度有利于充填体稳定性和降低充填成本。
- In this paper, based on the theory of extenics, the matter-element model for the stability evaluation of stope roof of the underground mine is established and the stability of No. 92 orebody in TongKeng mine of DaChang is evaluated. 利用该理论建立了地下矿山采场顶板稳定性评价的物元模型,对大厂铜坑矿92号矿体实际采场顶板稳定性进行了评价。
- During the process of underground mining,the stabilization of stope roof is the basement of normal and productive mining. 金属矿地下开采过程中,采场顶板稳定是矿山正常、高效回采的前提。
- Room-and-pillar method is used for mining in most gypsum mines,and a top gypsum layer with a certain thickness in stope is reserved to keep the roof stabilization of stope. 大多数石膏矿山采用房柱法开采,通过在采场中保留一定厚度的石膏层来维护顶板的稳定性,护顶层是影响采空区稳定性的重要因素之一。
- Therefore,it can greatly improve stability of stopes and help to extend the application of large-diameter longhole mining method to enhance qualities of drilling. 因此,提高凿岩质量,能够大大改善采场的稳定性,有利于继续推广应用大直径深孔采矿法。
- Research on the Stability of Stope in the North Edge of Fengshan Copper Mine 丰山铜矿北缘采场稳定性研究
- The government has taken a measure to maintain the stability of prices. 政府已经采取了措施以确保物价稳定。
- The war could threaten the stability of the region. 战争可能会影响到这个地区的稳定。
- Special winch can keeps the stability of the rig. 特殊的卷扬机构,有效保持施工的稳定性。
- Study on the Stability of Lidocaine Cream Co. 复方利多卡因乳膏稳定性研究。
- STUDY ON STABILITY OF STOPE IN ROOM HIGH-LEVEL LARGE-DIAMETER LONGHOLE MINING IN ANQING COPPER MINE 安庆铜矿矿房高阶段大直径深孔采矿采场稳定性研究
- Second, stability of the grain market. 第二,粮食市场安定。
- The stability of affairs is very serious. 事态非常严重。
- This paper introduces the method of slope adjustment of stope face. 文章介绍了回采工作面的调斜方法。
- The stability of GDH to heat and pH were studied. 并对其热稳定性及酸碱稳定性进行了研究。
- Hight stability of size shrinkage. 尺寸收缩稳定性高.
- The stability of Gardenia red pigment was studied. 本文对栀子红色素做了较为全面的稳定性研究。
- Objective Improving stability of Enoxacin cream. 目的提高依诺沙星乳膏稳定性。
- Collapse of stope roofs is one of disasters occurring at underground mines. 矿山采场顶板冒落是地下矿山开采中常见的灾害。