磷矿采场矿压及覆岩活动规律研究  

Research on the Activity Laws of Mine Pressure and Overburden Rock in Phosphorus Mine Quarries

作　　者：蔡鸿宇 王佳文 李小双 滕琳 王燕 李帅 Cai Hongyu;Wang Jiawen;Li Xiaoshuang;Teng Lin;Wang Yan;Li Shuai(School of Emergency Management and Safety Engineering,Jiangxi University of Science and Technology,Jiangxi,341000;School of Civil Engineering,Qilu Institute of Technology,Shandong,250000;School of Urban Construction,Changzhou University,Jiangsu,213000;China Construction 8 Urban Development Corporation,Shandong,250014)

机构地区：[1]江西理工大学应急管理与安全工程学院,江西341000 [2]齐鲁理工学院土木工程学院,山东250000 [3]常州大学城市建设学院,江苏213000 [4]中建八局城市发展公司,山东250014

出　　处：《当代化工研究》2024年第5期47-50,共4页Modern Chemical Research

基　　金：国家自然科学基金资助项目“干湿交替-爆破振动耦合下含空区高陡岩坡力学响应特征及其失稳机理研究”(项目编号:42277154);山东省高等学校“青创人才引育计划”项目“边坡安全管控与灾害预防技术创新团队”(项目编号:鲁教科函[2021]51号);山东省自然科学基金资助项目“露井复合采动下岩体响应的演化特征及其破坏机制研究”(项目编号:ZR2022ME188);济南市科研带头人工作室项目“新高校20条”(项目编号:20228108)。

摘　　要：本文以云南晋宁磷矿为工程背景,系统研究了磷矿采场矿压及覆岩活动规律。试验结果表明,在开挖过程中,采场覆岩未产生大规模破坏和沉降,主要破坏模式为局部冒落,上覆岩层和顶板是主要应力重新分布区,顶板受压破坏导致上覆岩层产生位移。试验结果可为磷矿安全开采提供理论依据,对降低磷矿开采风险有一定参考价值。This paper takes Yunnan Jinning phosphate mine as the engineering background,systematically researches the mine pressure and overburden rock activity law of phosphate mine quarry.The experiment results show that in the excavation process,the overlying rock of the quarry did not produce large-scale damage and settlement,the main damage mode is localized fall,the overlying rock layer and the roof plate are the main stress redistribution area,and the roof plate is damaged by the pressure,which leads to the displacement of the overlying rock layer.The test results can provide theoretical basis for the safe mining of phosphorus mine,and have certain reference value for reducing the risk of phosphorus mining.

关 键 词：磷矿开采 覆岩活动 应力 位移 相似理论 

分 类 号：TD[矿业工程]