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Support Technology of Small Coal Pillar Goaf-side Gateway for Fully Mechanized Top Coal Caving Mining Face in Deep Mine

Meng Fan-wu

Open publisher page 1 citations

Abstract

In order to make a rational layout of the mining gateway in deep mining blocks under the complicated geological conditions and according to the seam deposit conditions of the No.7354 fully mechanized top coal caving mining face in Kongzhuang coal Mine,the papa analyzed the support pressure distribution conditions of the mining gateway and the failure features of the surrounding rock deformation,set up the rational size of the shallow coal pillars to protect the mining gateway and had a bolt-steel mesh-anchor combined support design of the mining gateway with the small coal pillars along the goaf.The site observations showed that the bolt-steel mesh-anchor combined support with a good result would not only ensure the safety and stability during the gateway services period,but could also improve the coal mining recovery rate.

About this research paper

What this paper is about

In order to make a rational layout of the mining gateway in deep mining blocks under the complicated geological conditions and according to the seam deposit conditions of the No.7354 fully mechanized top coal caving mining face in Kongzhuang coal Mine,the papa analyzed the support pressure distribution conditions of the mining gateway and the failure features of the surrounding rock deformation,set up the rational size of the shallow coal pillars to protect the mining gateway and had a bolt-steel mesh-anchor combined support design of the mining gateway with the small coal pillars along the goaf.The site observations showed that the bolt-steel mesh-anchor combined support with a good result would not only ensure the safety and stability during the gateway services period,but could also improve the coal mining recovery rate.

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Available abstract

In order to make a rational layout of the mining gateway in deep mining blocks under the complicated geological conditions and according to the seam deposit conditions of the No.7354 fully mechanized top coal caving mining face in Kongzhuang coal Mine,the papa analyzed the support pressure distribution conditions of the mining gateway and the failure features of the surrounding rock deformation,set up the rational size of the shallow coal pillars to protect the mining gateway and had a bolt-steel mesh-anchor combined support design of the mining gateway with the small coal pillars along the goaf.The site observations showed that the bolt-steel mesh-anchor combined support with a good result would not only ensure the safety and stability during the gateway services period,but could also improve the coal mining recovery rate.

Key concepts: Mining engineering, Coal mining, Gateway (web page), Coal, Longwall mining, Engineering, Pillar, Face (sociological concept)

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Support Technology of Small Coal Pillar Goaf-side Gateway for Fully Mechanized Top Coal Caving Mining Face in Deep Mine — Research Paper | ScholarLens