基于红外辐射的深部磷矿岩爆机理分析及防治措施  

Mechanism Analysis and Prevention Measures of Rock Burst in Deep Phosphate Mines Based on Infrared Radiation

作　　者：朱元栩 张电吉[1,2] 吝曼卿[1,2] 彭亚利 孙郡阳 周新涛 ZHU Yuanxu;ZHANG Dianji;LIN Manqing;PENG Yali;SUN Junyang;ZHOU Xintao(School of Resources&Safety Engineering,Wuhan Institute of Technology,Wuhan,Hubei 430074,China;Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education,Wuhan,Hubei 430074,China;Hubei Xingfa Chemical Group Co.,Ltd.,Yichang,Hubei 44371l,China)

机构地区：[1]武汉工程大学资源与安全工程学院,湖北武汉430074 [2]磷资源开发利用教育部工程研究中心,湖北武汉430074 [3]湖北兴发化工集团股份有限公司,湖北宜昌市443711

出　　处：《矿业研究与开发》2024年第12期76-82,共7页Mining Research and Development

基　　金：国家磷资源开发利用工程技术研究中心开放基金项目(NECP2022-08);国家自然科学基金项目(52174085);武汉工程大学教育创新基金项目(CX2023273)。

摘　　要：随着地下磷矿开采逐渐向深部转移,岩爆作为地下施工过程中常见的地质灾害,对井下施工人员和设备造成严重安全隐患。以宜昌瓦屋Ⅳ矿段岩爆灾害为工程背景,模拟岩爆现场,利用红外辐射热成像技术,结合围岩应力-应变曲线和岩石加载破坏特征,分析岩石在不同受力阶段的岩爆孕育力学机制。结果表明,沿剪切破裂方向的高温条带是一种重要的破裂前兆,可作为岩爆预警的标志;通过岩爆临界埋深判据和基于红外辐射的岩爆分级方法,对瓦屋Ⅳ矿段发生岩爆的埋深和剧烈程度进行预测,针对不同岩爆等级制定合理的防治方案;深部磷矿岩爆的防治措施包括改善围岩物理力学性质、改善围岩应力条件、优化施工工艺及加固围岩等方法。As underground phosphate mining gradually shifts to deeper areas, rock burst, as a common geological hazard in underground construction, poses serious safety risks to personnel and equipment working underground. Taking the rock burst disaster of the Wawu Ⅳ mine section in Yichang as the engineering background, the mechanical mechanism of rock burst development under different stress stages was analyzed by simulating the rock burst site, using infrared radiation thermal imaging technology, and combining the stress-strain curve with the loading and failure characteristics of the surrounding rock. The results show that the high-temperature strip along the shear fracture direction is an important precursor to rupture and can be used as a sign of rock burst warning. A rock burst classification method based on the critical burial depth criterion and infrared radiation was used to predict the burial depth and severity of rock bursts in the Wawu Ⅳ mine section, and reasonable prevention and control plans were formulated for different rock burst levels. Prevention and control measures of rock burst in deep phosphate mine includes improving the physical and mechanical properties of surrounding rock, improving the stress conditions of surrounding rock, optimizing the construction technology and reinforcing the surrounding rock.

关 键 词：岩爆 红外辐射 岩爆机理 岩爆防治 破坏特征 

分 类 号：TD315[矿业工程—矿井建设]