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Roof Control Technology of Mining Roadway under the Influence of Advanced Supporting Pressure
Advances in Civil Engineering ( IF 1.8 ) Pub Date : 2021-06-09 , DOI: 10.1155/2021/2049755 Zhiyuan Jin 1 , Youlin Xu 1 , Tao Peng 1, 2 , Linsheng Gao 3
Advances in Civil Engineering ( IF 1.8 ) Pub Date : 2021-06-09 , DOI: 10.1155/2021/2049755 Zhiyuan Jin 1 , Youlin Xu 1 , Tao Peng 1, 2 , Linsheng Gao 3
Affiliation
In order to solve the problem of controlling the roof of the stoping roadway in 1204 fully mechanized face under the influence of advanced support pressure, according to the characteristics of the stoping roadway section, the single hydraulic prop and π-shaped steel beam were selected to verify the shrinkage of the single hydraulic support and establish mechanics. The model calculates that at least 3 single hydraulic props and at least 2 material lanes are required for the transportation lane; through the numerical simulation method, a reasonable roof control plan for the stoping roadway in the advance support section is determined, that is, 0∼ in front of the material lane. The one-beam three-column method is adopted within 30 m, and the row spacing is 0.8 m; the one-beam four-pillar method is adopted within 0–20 m of the working front of the transportation lane; and the one-beam three-pillar method is adopted within 20–30 m, and the row spacing is 0.8 m. On-site industrial test practice proved that the proposed roof control scheme is reasonable, and the roadway section can meet the actual production requirements.
中文翻译:
超前支护压力作用下的矿井巷道顶板控制技术
为解决1204综采工作面超前支护压力影响下截断巷顶控制问题,根据截断巷道段的特点,采用单液压支柱和π选用型钢梁验证单支液压支架的收缩量并建立力学。模型计算出,运输车道至少需要3个单体液压支柱和至少2个物料车道;通过数值模拟方法,确定了一个合理的超前支护路段停车巷顶控制方案,即在料道前0~。30m以内采用一梁三柱法,行距0.8m;运输车道工作前沿0~20 m范围内采用单梁四柱法;20~30 m内采用一梁三柱法,行距0.8 m。现场工业试验实践证明,提出的顶板控制方案是合理的,
更新日期:2021-06-09
中文翻译:
超前支护压力作用下的矿井巷道顶板控制技术
为解决1204综采工作面超前支护压力影响下截断巷顶控制问题,根据截断巷道段的特点,采用单液压支柱和π选用型钢梁验证单支液压支架的收缩量并建立力学。模型计算出,运输车道至少需要3个单体液压支柱和至少2个物料车道;通过数值模拟方法,确定了一个合理的超前支护路段停车巷顶控制方案,即在料道前0~。30m以内采用一梁三柱法,行距0.8m;运输车道工作前沿0~20 m范围内采用单梁四柱法;20~30 m内采用一梁三柱法,行距0.8 m。现场工业试验实践证明,提出的顶板控制方案是合理的,