loose wall rock

 
  • 松散围岩

Loose wall rock的用法和样例:

例句

  1. Wall rock is a special medium of underground engineering and its stability affects directly production and safety.
    摘要围岩是地下工程类特殊的介质,其稳定性直接影响到生产和安全。
  2. The paper carefully analyzes bolt supporting system, and measures the parameters of coal wall rock in Fuxin diggings.
    本文对锚杆支护理论进行了系统分析,并对阜新矿区煤巷围岩的参数进行了实验测定。
  3. Secondly, simulation elicits wall rock transmogrification under the different coal pillar and different stress.
    其次模拟研究分析了留设煤柱宽度不同时以及地应力大小不一时沿空巷道围岩变形情况,得到了一些认识;
  4. The results show that both ore body and wall rock have weak or strong rockburst proneness.
    结果表明,该矿矿体和围岩均具有发生弱或强烈岩爆的倾向性。
  5. The main wall rock alterations of the Kangshan goldfield are silication,sericitization,carbonicacidation and pyritization.
    康山金矿田围岩蚀变主要为硅化、绢云母化、碳酸盐化及黄铁矿化。

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