rock control

mining under great height working face pillars and surrounding rock control

大采高工作面煤柱下开采与围岩控制

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surrounding rock control of intersection chamber with soft rock and large span

软岩大跨度交叉硐室围岩控制技术

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Surrounding Rock Control Theory and Application Study of the Coal Face with Greater Mining Height

大采高采场围岩控制理论及应用研究

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Shall we leave now? It's just the shank of the evening.

现在就走 吗 ?才刚天黑呢!

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mine strata pressure behavior law and surrounding rock control of the top coal caving mining face with hydraulic single props

单体支柱放顶煤工作面矿压显现规律及围岩控制

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effect of bolts on surrounding rock control

锚杆对围岩控制效果分析

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Gob Strata Behaviors and the Law of Rock Control Technology

沿空留巷矿压显现规律与围岩控制技术研究

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Numerical Simulation of Surrounding Rock Control and Temporary Supporting Technology for Large Junction

大断面交岔点围岩控制及临时支护技术模拟研究

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Mechanism and results of Surrounding Rock Control with High Resistance Full Length Bolt

高阻力全长锚固锚杆围岩控制的机理和效果

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surrounding rock control in high ranking caving coal face with net grid support

网格支架高档放顶煤工作面围岩控制

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these achievements in this thesis are of important meanings in engineering and theory for the evaluation of the stability of the surrounding rock, supporting designs, the rock pressure, and rock control.

本文的研究成果对巷道围岩稳定性评价，支护设计及矿山压力及岩层控制理论具有重要的工程实用意义和理论意义。

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Structures, sedimentary reservoirs , and source rock control petroleum accumulation process.

油气成藏作用受构造 、 沉积储层、烃源岩的控制.

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fly rock control on deep-hole explosion in opencast mining

露天深孔爆破飞石的原因分析及控制方法

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And also measure of rock control for different kinds of roadways arc proposed.

针对巷道的不同类型,探讨了相应的围岩支护控制措施.

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the surrounding rock control key and the prevent measure in the process of tunneling under the similar tunnel was proposed.

提出了同类巷道掘进过程中围岩控制的关键措施。

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surrounding rock control technology in large underground soft rock chamber

大型软岩硐室围岩控制技术

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Large hole coyote blast fly rock control

浅谈大孔径药壶爆破的飞石控制

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