回采巷道锚杆支护效果评判的改进突变级数法

doi:10.16265/j.cnki.issn1003-3033.2021.03.009

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (3): 60-65.doi: 10.16265/j.cnki.issn1003-3033.2021.03.009

回采巷道锚杆支护效果评判的改进突变级数法

李京^1,2, 胡斌^**1,2 教授, 刘艳章^1,2 教授, 崔阿能^1,2

1 武汉科技大学资源与环境工程学院,湖北武汉 430081;
2 冶金矿产资源高效利用与造块湖北省重点实验室,湖北武汉 430081

收稿日期:2020-12-18 修回日期:2021-02-18 出版日期:2021-03-28 发布日期:2021-12-20
通讯作者: **胡斌(1974—),男,山东曲阜人,博士,教授,博士生导师,主要从事高边坡/隧道围岩长期稳定性分析与防控研究。E-mail:hbin74@wust.edu.cn。
作者简介:李京 (1994—),男,山西孝义人,博士研究生,主要研究方向为地下空间稳定与安全、露天高边坡稳定性等。E-mail:lijing1994@wust.edu.cn。
基金资助:
国家自然科学基金资助(U1802243,41672317);湖北省技术创新专项(重大项目)(2017ACA184)。

Improved catastrophe progression method for evaluating supporting effect of bolts in mining roadway

LI Jing^1,2, HU Bin^1,2, LIU Yanzhang^1,2, CUI A'neng^1,2

1 School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan Hubei 430081, China;
2 Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan Hubei 430081, China

Received:2020-12-18 Revised:2021-02-18 Online:2021-03-28 Published:2021-12-20

摘要/Abstract

摘要： 为综合确定多种因素影响下回采巷道的锚杆支护效果,提出评判回采巷道锚杆支护效果的改进突变级数法。首先,多层次分解影响巷道锚杆支护效果的因素,根据离差最大化法改进突变级数法中的指标重要性排序问题;然后,构建基于改进突变级数法的锚杆支护效果评判模型,计算得出巷道锚杆支护效果评判级数;最后,对20个样本进行巷道锚杆支护效果评判及实例验证,确定模型的可行性和可靠性。结果表明:样本数据的模型检验预测结果与现场巷道锚杆支护稳定性结果一致;改进支护方案后,巷道稳定性由第Ⅲ级变为第Ⅱ级,与现场监测位移结果相符,可验证改进突变级数法的合理性和可靠性。

关键词: 回采巷道, 锚杆支护, 突变级数法, 巷道稳定性, 离差最大化法

Abstract: In order to determine comprehensively bolt support effect of mining roadway under influence of various factors,an improved catastrophe progression method was proposed to evaluate supporting effect of bolts in mining roadway. Firstly, based on multi-layer decomposition of factors affecting roadway bolt support effect, index importance ranking problem in catastrophe progression method was improved by dispersion maximization method. Then, evaluation model of bolt support effect based on improved mutation progression method was constructed, and evaluation series of roadway bolt support effect was calculated. Finally, feasibility and reliability of model were confirmed by evaluating effect of roadway bolt support on 20 samples and verifying by numerical simulation. The results show that improved catastrophe progression method considers relative importance of each index. Evaluation results are accurate, which provides a new method for evaluation of bolt support effect.

Key words: mining roadway, bolt support, catastrophe progression method, roadway stability, maximizing deviation method

中图分类号:

X936

李京, 胡斌, 刘艳章, 崔阿能. 回采巷道锚杆支护效果评判的改进突变级数法[J]. 中国安全科学学报, 2021, 31(3): 60-65.

LI Jing, HU Bin, LIU Yanzhang, CUI A'neng. Improved catastrophe progression method for evaluating supporting effect of bolts in mining roadway[J]. China Safety Science Journal, 2021, 31(3): 60-65.

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回采巷道锚杆支护效果评判的改进突变级数法

Improved catastrophe progression method for evaluating supporting effect of bolts in mining roadway

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