巷道掘进中最大循环进尺模拟研究
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摘要
为完善现有巷道掘进中最大循环进尺计算理论,在巷道稳定性判据的基础上,借助数值模拟的方法,对不同围岩等级、不同埋深和不同断面尺寸的巷道进行了计算分析。根据模拟结果进行数据拟合,提出了巷道顶板位移的计算方法,确定了巷道掘进中最大循环进尺。在新巨龙煤矿2305S工作面的应用取得了良好的效果,主要表现在,巷道空顶范围内未出现岩石垮落现象,巷道掘进速度由40 m/月提高到60 m/月,大大缩短了工期,为新巨龙煤矿节约资金数百万元。
In order to improve the calculation theory of maximum circulating footage in roadway excavation, based on roadway stability criterion, numerical simulation method is used to calculate roadway with different rock grades, different depths and different section sizes. According to simulation results, calculation method of roadway roof displacement is proposed, which provides basis for determining maximum cycle footage during roadway excavation. The application of 2305 S coal mining face in Xinjulong Coal Mine has achieved good results. It is mainly shown that there is no rock caving in the top area of roadway, and the speed of roadway tunneling increased from 40 m/month to 60 m/month, which greatly shortens the construction period and saves millions of yuan for Xinjulong Coal Mine.
In order to improve the calculation theory of maximum circulating footage in roadway excavation, based on roadway stability criterion, numerical simulation method is used to calculate roadway with different rock grades, different depths and different section sizes. According to simulation results, calculation method of roadway roof displacement is proposed, which provides basis for determining maximum cycle footage during roadway excavation. The application of 2305 S coal mining face in Xinjulong Coal Mine has achieved good results. It is mainly shown that there is no rock caving in the top area of roadway, and the speed of roadway tunneling increased from 40 m/month to 60 m/month, which greatly shortens the construction period and saves millions of yuan for Xinjulong Coal Mine.
引文
[1]李晓静,朱维申,陈卫忠,等.层次分析法确定影响地下洞室围岩稳定性各因素的权值[J].岩石力学与工程学报,2004,23(增2):4731-4734.
[2]常英飞.浅谈软弱围岩隧道中最优循环进尺的确定[J].北方交通,2013(12):43-47.
[3]黄振其.不同围岩条件下巷道施工的合理循环进尺研究[J].企业技术开发,2014,33(5):177-178.
[4]李波,吴立,左清军,等.复杂地质条件下特大断面隧道施工工法及其循环进尺参数的优化研究[J].安全与环境工程,2014,21(4):159-164.
[5]柏建彪,肖同强,李磊,等.巷道掘进空顶距确定的差分方法及其应用[J].煤炭学报,2011,36(6):920.
[6]朱维申,李晓静,郭彦双,等.地下大型洞室群稳定性的系统性研究[J].岩石力学与工程学报,2004,23(10):1689-1693.
[7]管俊才,柳军涛.煤矿巷道掘进的影响因素及应对措施研究[J].山西煤炭管理干部学院学报,2014,27(2):37-38.
[8]范明建.深井大断面煤巷掘进合理空顶距的确定[J].煤炭技术,2016,35(11):60-62.
[9]唐卫涛,李圣岩,刘伟,等.破碎顶板条件下巷道掘进空顶距研究[J].煤矿安全,2013,44(10):38-40.
[10]黄福波.不同围岩条件下隧道施工的合理循环进尺研究与实践[J].安徽建筑,2006(10):38-39.
[11]李达,李永生,罗占夫.复杂条件下隧道开挖循环进尺优化方法研究[J].岩土力学,2013,34(2):498.
[12]王亚玲,冯闪,张玲玲,等.循环进尺对巷道围岩稳定性影响的数值模拟分析[J].煤炭技术,2016,35(6):53-54.
[13]杨小林.隧洞开挖循环进尺的模糊分级统计法分析与研究[J].水利水电技术,2003,34(2):37-43.
[14]李廷春,张仕林,王群,等.立井破碎基岩段围岩强度及支护等级划分标准[J].湖南科技大学学报(自然科学版),2014,29(1):1-7.
[15] TB 10003-2005铁路隧道设计规范[S].
[2]常英飞.浅谈软弱围岩隧道中最优循环进尺的确定[J].北方交通,2013(12):43-47.
[3]黄振其.不同围岩条件下巷道施工的合理循环进尺研究[J].企业技术开发,2014,33(5):177-178.
[4]李波,吴立,左清军,等.复杂地质条件下特大断面隧道施工工法及其循环进尺参数的优化研究[J].安全与环境工程,2014,21(4):159-164.
[5]柏建彪,肖同强,李磊,等.巷道掘进空顶距确定的差分方法及其应用[J].煤炭学报,2011,36(6):920.
[6]朱维申,李晓静,郭彦双,等.地下大型洞室群稳定性的系统性研究[J].岩石力学与工程学报,2004,23(10):1689-1693.
[7]管俊才,柳军涛.煤矿巷道掘进的影响因素及应对措施研究[J].山西煤炭管理干部学院学报,2014,27(2):37-38.
[8]范明建.深井大断面煤巷掘进合理空顶距的确定[J].煤炭技术,2016,35(11):60-62.
[9]唐卫涛,李圣岩,刘伟,等.破碎顶板条件下巷道掘进空顶距研究[J].煤矿安全,2013,44(10):38-40.
[10]黄福波.不同围岩条件下隧道施工的合理循环进尺研究与实践[J].安徽建筑,2006(10):38-39.
[11]李达,李永生,罗占夫.复杂条件下隧道开挖循环进尺优化方法研究[J].岩土力学,2013,34(2):498.
[12]王亚玲,冯闪,张玲玲,等.循环进尺对巷道围岩稳定性影响的数值模拟分析[J].煤炭技术,2016,35(6):53-54.
[13]杨小林.隧洞开挖循环进尺的模糊分级统计法分析与研究[J].水利水电技术,2003,34(2):37-43.
[14]李廷春,张仕林,王群,等.立井破碎基岩段围岩强度及支护等级划分标准[J].湖南科技大学学报(自然科学版),2014,29(1):1-7.
[15] TB 10003-2005铁路隧道设计规范[S].