The Tonglu Mountain Copper Mine used an elaborate system of timbering support the working areas.
铜绿山古矿井采用符合力学原理的木框架支护技术,框外用木棍、木板作护壁,组成完整安全的井筒.
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Lastly, the paper simulates bolt timbering of the laneway along the gob.
最后, 分析模拟了沿空巷道的锚杆支护情况.
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This graduation design elaborates on the deep pits'timbering of Lijiangwan garden of Jiujiang City.
此篇毕业设计集中阐述九江市丽景湾花园的深基坑开挖支护.
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The particular system of timbering depends on the rock formations through which the tunnels pass.
采用何种支护方法取决于井巷穿过的岩层结构.
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Application of the Braced Girder and Anchored Cable in the 7518 Open-Off Cutting Timbering
桁架锚索在7518切眼支护中的应用
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MYT&115QⅡ型全方位液压锚杆钻机在矿综掘架棚-锚杆支护中的应用
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随着矿井开采规模的加强和开采向纵深方向发展,巷道围岩越来越多地呈现出软岩特性,软岩巷道的支护与维护问题更为突出。
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