兖州矿区立井井筒非采动破裂的影响因素分析  

Analysis of Factors Affecting Non-mining Failure of Mine Shaft in Yanzhou Mining Area

作　　者：盖秋凯 庞龙 沈星宇 马清明 GAI Qiu-kai;PANG Long;SHEN Xing-yu;MA Qing-ming(School of Energy and Mining Engineering,China University of Mining and Technology(Beijing),Beijng 100083,China)

机构地区：[1]中国矿业大学(北京)能源与矿业学院,北京100083

出　　处：《煤炭技术》2020年第9期40-42,共3页Coal Technology

基　　金：国家自然科学基金青年科学基金资助(51504095)。

摘　　要：为定量分析兖州矿区立井井筒非采动破裂的影响因素及其相应的影响程度,基于破裂机理与该矿区的实测资料,选取松散冲积层厚度P1、施工方法 P2、井筒净直径P3、水位降P4和冲积层压缩速率P5作为评价指标,应用进阶的主成分分析法定量评价各指标的影响程度,并给出综合防治建议。分析结果表明:各指标影响程度P4>P5>P1>P3>P2,其中P4与P5得分占总得分的81.59%,应为重点防治对象。研究成果对兖州矿区及深厚松散层下立井井筒非采动破裂防治具有一定的指导意义。In order to quantitatively analyze the influencing factors of the non-mining rupture of the shaft wellbore in Yanzhou mining area and its corresponding degree of influence, based on the fracture mechanism and the measured data of the mining area, the thickness of the loose alluvium layer P1, the construction method P2, and the net diameter of the wellbore P3 are selected, water level drop P4 and alluvial compression rate P5 are used as evaluation indexes. The principal component analysis method is used to quantitatively evaluate the influence degree of each index, and comprehensive prevention and treatment suggestions are given. The analysis results show that the impact degree of each index is P4>P5>P1>P3>P2, and P4 and P5 scores account for 81.59% of the total score, which should be the key prevention and treatment targets. The research results have certain guiding significance for the prevention and control of non-mining rupture in the vertical shaft of Yanzhou mining area and deep loose layer.

关 键 词：井筒破裂 影响因素 PCA法 定量评价 兖州矿区 

分 类 号：TD266[矿业工程—矿井建设]