基于FLAC的李雅庄煤矿回采巷道顶板离层规律分析

Roof Separation Laws Analysis for Mining Roadway of Liyazhuang Coal Mine Based on FLAC

摘要: 利用有限差分数值计算软件FLAC^3D对李雅庄220工作面回采巷道情况进行了模拟，建立数值计算模型，详细分析了8种锚杆支护方法中对应顶板离层值的变化情况及顶板离层值随不同支护锚固参数的变化规律，确定了巷道支护设计参数，提高了现场对顶板离层控制设计的合理性与可靠性。
- 数值模拟 /
- 锚杆支护 /
- 顶板冒落 /
- 离层分析 /
- 回采巷道
Abstract: This study uses the finite difference software FLAC^3D to simulate the situation of mining roadway at Liyazhuang 220 working face. The study establishes a numerical calculation model, and detailedly analyzes 8 kinds of bolt supporting method corresponding to the roof separation value and the change laws of roof separation value changing with different parameters of anchoring. The roadway support design parameters are determined, an the rationality and reliability design of roof separation control is improved.
- numerical simulation /
- bolt support /
- roof caving /
- separation analysis /
- mining roadway

[1]	李树忱,李树才.断续节理岩体破坏过程的数值方法及工程应用[M].北京:科学出版社,2007.
[2]	蔡美峰.岩石力学与工程[M].北京:科学出版社,2002.
[3]	宋广太,魏锦平,张榜雄.煤巷围岩锚固技术与工程实践[M].北京:煤炭工业出版社,2006.
[4]	池永,周健,康景灏.锚杆支护煤巷稳定性模拟分析[J].矿冶工程,2002,22(1):39-41.
[5]	姜晨光,郭同兵.基于灰色系统理论的矿山采后地面沉降预测[J].中国矿山工程,2006,35(3):33-35.
[6]	刘长武, 郭永峰.锚网(索)支护煤巷顶板离层临界值分析[J].岩土力学,2003,24（增刊）:231-234.
[7]	刘波,韩彦辉.FLAC原理、实例与应用指南[M].北京:人民交通出版社,2005.
[8]	袁亮.深井巷道围岩控制理论及淮南矿区工程实践[M].北京:煤炭工业出版社,2006.
[9]	耿献文,马全礼.矿山压力测控技术[M].徐州:中国矿业大学出版社,2002.