动压影响巷道护巷煤柱宽度优化技术研究

doi:10.19286/j.cnki.cci.2022.11.001

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Abstract

In view of the current situation that mining of No.3005 Face will affect the stability of the surrounding rock of the north wing belt roadway, in order to ensure the surrounding rock stability during and after No.3005 Face mining and ensure the safety and smooth progress of the subsequent mine production, according to the actual geological conditions of the roadway working face, the numerical simulation method was used to determine the safe and reasonable coal pillar size of the north wing belt roadway under the influence of No.3005 Face dynamic pressure to be 50 m. The industrial test showed that the soft coal of the roof and the surrounding rock of the two sides had been effectively controlled, and no roof fall, floor heave or rib spalling accident occurred during the test. The study showed that different coal pillar widths had a significant impact on the stability of the roadway, which provided a reasonable reference for the confirmation of coal pillar width in other similar cases.

Key words： dynamic pressure roadway soft rock coal pillar size supporting pressure numerical simulation

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	Song Zhiqing

Cite this article:

Song Zhiqing. Study on optimization technology of coal pillar width influenced by dynamic pressure[J]. CCI, 2022, 45(11): 1-4.

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http://www.mtyhg.com.cn/EN/10.19286/j.cnki.cci.2022.11.001 OR http://www.mtyhg.com.cn/EN/Y2022/V45/I11/1

1 ]       刘金海，姜福兴，王乃国，等. 深井特厚煤层综放工作面区段煤柱合理宽度研究[ J ]. 岩石力学与工程学报，2012，31（ 5 ）：921 - 927.
[ 2 ]       高新刚，张东华. 采空侧大变形巷道下护巷煤柱宽度优化[ J ]. 煤炭技术，2019，38（ 8 ）：29 - 32.
[ 3 ]       奚家米，毛久海，杨更社，等. 回采巷道合理煤柱宽度确定方法研究与应用[ J ]. 采矿与安全工程学报，2008，25（ 4 ）：400 - 403.
[ 4 ]       贾光胜，康立军. 综放开采采准巷道护巷煤柱稳定性研究[ J ]. 煤炭学报，2002（ 1 ）：6 - 10.
[ 5 ]       杨    科，谢广祥，常聚才. 煤柱宽度对巷道围岩稳定性影响分析[ J ]. 地下空间与工程学报，2009，5（ 5 ）：991 - 995.
[ 6 ]       李    臣，郭晓菲，霍天宏，等. 预掘双回撤通道煤柱留设及其围岩稳定性控制[ J ]. 华中科技大学学报（自然科学版），2021，49（ 4 ）：20 - 25，31.
[ 7 ]       余学义，王    琦，赵兵朝，等. 大采高双巷布置工作面巷间煤柱合理宽度研究[ J ]. 岩石力学与工程学报，2015，34（ S1 ）：3 328 - 3 336.
[ 8 ]       陈    川，马振乾，官瑞冲，等. 松软煤层托顶煤巷道煤柱宽度优化及控制技术[ J ]. 地下空间与工程学报，2020，16（ 4 ）：1 258 - 1 264.
[ 9 ]       田建设，贾金兑，朱浩宇，等. 深部高应力双巷布置工作面煤柱宽度合理性研究[ J ]. 煤炭工程，2021，53（ 4 ）：6 - 10.
[ 10 ]     张    杰，白文勇，王    斌，等. 浅埋煤层孤岛工作面区段煤柱宽度优化[ J ]. 西安科技大学学报，2021，41（ 6 ）：988 - 996.
[ 11 ]     郭    强，王    萌. 动压影响下双巷布置工作面区段煤柱合理宽度研究[ J ]. 煤炭工程，2021，53（ 12 ）：97 - 102.
[ 12 ]     赵铁林. 特厚煤层综放沿空掘巷煤柱尺寸优化研究[ J ]. 煤炭技术，2021，40（ 12 ）：5 - 9.