Pre-Reinforcement Technology in Broken Roof Side Condition

Yu San Shen; Li Jun Zeng

doi:10.4028/www.scientific.net/AMM.215-216.681

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 215-216Pre-Reinforcement Technology in Broken Roof Side...

Pre-Reinforcement Technology in Broken Roof Side Condition

Abstract:

The roof side broken brings serious security risks in the construction in coal mine. The geological structure of faults and folds that encountered in coal mine and the affect of abutment pressure in the goaf creat roof side broken. If in the way of reinforced support to control the surrounding rock, it is difficult to achieve the expected security. Especially if the roof side broken appears in the mining gateway, controlling the surrounding rock by the way of reinforced support causes waste of materials and the supporting effect is limited. So, combined with the distribution of abutment pressure of the surrounding rock in broken roadway, starting from the nature change of the surrounding rock, through injection of Malisan to change the broken condition of surrounding rock, the broken roadway is effectively.under control.

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Periodical:

Applied Mechanics and Materials (Volumes 215-216)

Pages:

681-684

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.215-216.681

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Online since:

November 2012

Authors:

Yu San Shen, Li Jun Zeng

Keywords:

Malisan, Roof Side Broken, Surrounding Rock Control

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References

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