Mechanism of the rib spalling and the controlling in the very soft coal seam
Mechanism of the rib spalling and the controlling in the very soft coal seam
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发表时间：
2007
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通讯作者：
Wang Jia-chen
中科院分区：
文献类型：
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作者：
Wang Jia-chen
研究了肋骨剥落和详细控制的机制，并提出控制肋骨剥落的主要工程方法是降低煤壁压力并增加煤壁的剪切强度。技术和增加支撑的抵抗力可以减轻煤墙的压力。可以通过煤层水输液来提高煤墙的固定强度。它们是防止有效的工程方法肋骨剥落。快速的煤墙前进和适当的低壁高度也对墙壁稳定性也有利。
Studied the mechanism of the rib spalling and controlling in detail,and proposed that main engineering way of controlling the rib spalling was to decrease coal wall pressure and increase the shear strength of the coal wall.The following research results are obtained: the top coal caving technique and increasing the resistance of the support can reduce the pressure on the coal wall.The cohesion and shear strength of the coal wall may be increased by means of the coal wall water infusion.They are effective engineering ways to prevent the rib spalling.The quickly coal wall advance and proper low wall height are also advantageous to the wall stability.