平巷掘进

pínɡ hàng jué jìn
  • Drift excavation;heading
平巷掘进平巷掘进
  1. 悬垂缆线的非线性振动平巷掘进的悬拱法

    Nonlinear Oscillations of a Suspended Cable SUSPENSION ARCH METHOD FOR DRIFTING

  2. 平巷掘进装岩运输机械系统可靠性分析

    Reliability analysis of rock-loading transport mechanical system of gallery driving

  3. 在层状岩体中平巷掘进提高炮孔利用率的探讨

    Discussion on how to improve blasting effect in drifting in stratified rocks

  4. 提高平巷掘进爆破效率的初步尝试

    An Primarily Attempt to Improve the Blasting Efficiency of Driftage

  5. 微机辅助设计在平巷掘进爆破中的应用

    The Application of Microcomputer Aided Design to Tunnel Piercing

  6. 浅孔爆破在平巷掘进中的应用

    Application of shallow hole blasting in excavation of tunnel

  7. 不稳定岩层中平巷掘进的悬拱法

    Suspension arch method of drifting in unstable strata

  8. 平巷掘进工作面圆形掏槽法

    Circular undercutting method of drift development end

  9. 平巷掘进的现状和发展

    Present State and Development of Parallel Tunneling

  10. 合理掏槽方法和爆破参数提高平巷掘进爆破率的实践

    Practice on improvement of blasting efficiency in drift excavation with reasonable cut method and blasting parameter

  11. 平巷掘进技术的发展途径

    Way to Develop the Drifting Technology

  12. 平巷掘进的悬拱法

    Suspension arch method for drifting

  13. 浅谈国内外平巷掘进现状及对我国平巷掘进工作的几点看法

    On the present situation of drifting at home and abroad and some views on drifting in our country

  14. 本文用可靠性理论,定量分析了平巷掘进装岩输机械系统的可靠性。

    The paper according the theory of reliability , quantified analysis reliability of rock-loading transport mechanical system of gallery driving .

  15. 实践证明,悬拱法是不稳定岩层中平巷掘进的有效施工方法。

    The practices showed that the suspension arch method of drifting is an effective way of drifting in unstable strata .

  16. 本文从实用出发,把微机辅助设计方法应用于平巷掘进的瀑破设计之中,收到了预期的效果。

    For practical purpose , the predetermined effect can be achieved by the application of microcomputer aided design to tunnel work designs .

  17. 本文在总结先拱后墙平巷掘进经验的基础上,根据岩石力学理论和平巷掘进原理,提出了平巷掘进的悬拱法。

    Based on the theory of rock mechanics and the principle of drifting , the author proposed the suspension arch method of drifting in unstable strata .

  18. 实践表明,采用单螺旋掏槽方式提高了平巷掘进爆破效率,取得了良好的经济效益。

    The construction practice indicated that the blasting efficiency in drift was improved and good economic benefits were obtained by the adoption of single helix cutting mode .

  19. 一般情况下,在岩石平巷掘进工作面的涌水中,在多台凿岩机集中打眼之前,固体颗粒含量最少。

    Under normal circumstances , Drifting in the rock face of the gushing water , in the concentration of multiple drill rock drill before the solids content of at least .

  20. 由于炮孔堵塞不牢和初始自由面利用不充分,井下平巷的掘进开挖爆破仍存在投入大、爆破结果欠理想等问题。

    Because of the weak borehole sealing and inadequate use of the initial free face , the higher investment and unsatisfactory blasting effect still exist in the mine tunnel excavation blasting .