TY - JOUR A2 - Wu, Yong-Zheng AU - Li, Ji AU - Zhang, Rongguang AU - Qiang, Xubo PY - 2022 DA - 2022/03/18 TI - The Coal Pillar Width Effect of Principal Stress Deflection and Plastic Zone Form of Surrounding Rock Roadway in Deep Excavation SP - 1007222 VL - 2022 AB - In order to explore the influence of coal pillar width on the principal stress deflection and plastic zone form of surrounding rock in deep roadway excavation, taking 11030 working face transportation roadway of Zhaogu No.2煤矿工程背景、理论分析、数值模拟和现场检测用于研究煤柱宽度对主应力偏转和塑料区表单的影响,并实地检测和验证11030交通路周围岩石的塑料区表结果显示最大主应力偏向垂直方向,即环石挖掘路煤柱主要偏转两侧比中间顶层和楼层、煤柱边缘和煤墙位置更显眼主应力偏转影响周围岩石塑料区形态分布,导致屋顶煤柱宽度效果,双面塑料区比楼层更清晰路旁岩石主应力偏转与最大损耗区高度一致,同时,环绕岩石钻探结果基本与数值模拟中塑料区形特征一致在此基础上,提出了周围岩石加固支持计划11030工作面部交通路SN-1468-8115UR-https://doi.org/101155/20222/1007222DO-10.1155/202222/1007222JF-GeofluidsPB-HindawiKW-ER