大断面煤巷锚杆支护技术现场试验

2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring Pub Date : 2011-04-11 DOI:10.1109/CDCIEM.2011.102

Yue Zhong-wen, Yang Ren-shu, Yan Zhen-dong, Han Peng-Fei, Zhang Yao-hui

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引用次数: 1

摘要

为研究大断面巷道支护设计，以晋城煤业集团赵庄矿为工程背景，开展了锚索巷道支护的现场试验研究。现场监测结果表明，相同时间，巷道巷5101的总变形量大于巷道巷5102，巷道巷5101的肋部收敛值为250mm，巷道巷5102的肋部收敛值在130mm ~ 150mm之间。上肋锚杆锚固力大于下肋，上肋围岩活动性大于下肋。顶板中部锚索锚固量大于顶板两侧锚索锚固量。顶板中部锚索锚固量在165KN ~ 168KN之间浮动，而顶板两侧锚索锚固量差异较大。地质条件是影响巷道稳定性的主要因素。研究还表明，锚索一体化支护是提高大断面巷道围岩稳定性的有效方法。

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Field Experiment on Bolt-Anchor Support Technology of Coal Roadway with Large Cross Section

In order to study the support design of large section roadway, filed experiment research of anchor- cable roadway support was carried out, with the engineering background of Zhaozhuang Mine of Jincheng Coal Industry Group. Field monitoring results indicate that, total deformation of Lane5101 is greater than Lane 5102 at the same amount of time, the ribs convergence value of Lane 5101 is 250mm, while Lane5102 is between 130mm to 150mm. The anchor¡¯s anchorage of upper rib is greater than lower rib, and the activity level of rock of upper roadway rib is greater than lower rib. The anchorage of cable at the middle of roof is larger than the sides of roof. The anchorage of cable at the middle of roof floats between 165KN and 168KN, while there is a big difference between the two sides of roof. Geological conditions are the main factors affecting the stability of roadway. The research also shows that the support of bolt and cable integration is an effective method to improve the surrounding rock stability of large section roadway.

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2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring

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