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- The contrast of theory calculation and test results verifies the rationality of joint rigidity model of prefabricated arc board of freezing shaft wall. 通过理论计算与试验结果的对比,验证了冻结井预制弧板井壁接头刚度模型的合理性。
- Cement injection of perforating holes in a frozen pipe is a wholly -new technology for consolidating shaft wall rock and stopping water of frozen shafts in coal mines. 冻结管射孔注浆是在对石油输油井射孔技术和地面注浆技术进行研究的基础上,开发出的一种用于煤矿冻结井筒围岩加固和堵水的全新技术。
- high - strength freezing shaft wall 高强冻结法井壁
- freeze shaft wall 冻结段
- Variety rules of concrete strain of outer shaft wall were carried out based on in-situ measurement during freeze sinking of Longgu Mine auxiliary shaft. 摘要通过龙固副井冻结凿井期现场实测,获得了龙固副井外层井壁混凝土应变的变化规律。
- Study on mechanical characteristics of reinforced concrete arc shaft wall in frozen shaft 冻结井钢筋混凝土弧形板井壁力学特性研究
- freezing shaft wall 冻结井壁
- mine freezing shaft wall 冻结井壁
- The security of freezing wall is the key problem of freezing shaft sinking in deep alluvium. 冻结壁的安全性是深厚冲积层中冻结凿井的关键问题。
- Disposal of shaft wall accretion and hearth accumulation of 2500 m~3 BF at Maanshan Iron & Steel Co.,Ltd. 马钢2500m~3高炉炉墙结厚与炉缸堆积的处理
- The stress formula of shaft wall is obtained, and an example is persuasively analyzed. 分析研究表明导致立井壁破坏的主要原因是井壁负摩擦力和温度应力。
- The distributing rule of additional forces of compressible shaft wall is given by numerical analysis and model test. 摘要通过数值分析和模型试验研究,揭示了竖向可缩性井壁附加力分布规律。
- The paper inquires into the function princile and influnce factors of pressure-releasing slot in shaft wall and analyzes its application results in harnessing cracred shaft wall. 探讨了井壁卸压槽的作用机理及影响因素,分析了卸压槽在破裂井壁治理工程中的应用效果。
- The setting optimization principle of compressible tie-in is brought forward;and it has important guidance meaning to design compressible shaft wall reasonably. 提出的可缩接头设置优化原则,对科学、合理地设计竖向可缩性井壁具有重要的指导意义。
- Research on freezing pressure in deep thick alluvium is in great need with the increase in depth of frozen shaft. 随冻结法凿井深度的增加,我国对深厚冲积层冻结井冻结压力分布的研究需求已经十分迫切。
- Based on the discussion of hydrogeological condition of the fouth aquifer of Cenozoic Erath-em and the weathered zone of bedrock in Linhuan mining area, the cause of shaft wall damage is analysed. 本文着重讨论了临涣矿区新生界松散层中第四含水层(以下简称四含)及其下基岩风化带的水文地质条件.
- The shutters thumped the wall in the wind. 在风中百叶窗砰砰地碰在墙上。
- The government has introduced a wage freeze. 政府已宣布要冻结工资。
- And the properties and amplitude of stress of rock mass in the back of shaft wall at the bottom are related with l ayout of working face, mining sequence, and distance of the working face to shaf t. 观测结果表明:井筒上部壁后岩体在铅垂方向上受张应力影响,而井筒底部壁后岩体应力的大小和性质与工作面的布置方式、开采顺序以及井筒与工作面的相对位置有关。
- Some fruits don't freeze well at all. 有些水果根本就不能冷藏。
