煤矿井筒安全状态评价体系改进及应用  

Improvement and application of mine shaft safety evaluation system

作　　者：许延春[1] 高玉兵 李江华[1] 古文哲 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]中国矿业大学(北京)深部岩土力学与地下工程国家重点实验室,北京100083 [3]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤炭科学技术》2016年第10期95-101,共7页Coal Science and Technology

基　　金：国家重点基础研究发展计划(973计划)资助项目(2013CB227903);中央高校基本科研业务费专项资金资助项目(2011YZ08)

摘　　要：为进一步完善立井井筒安全评价体系,以兴隆庄煤矿主井、副井、东风井和西风井为例,利用改进的经验拟合法和多元统计距离判别法,2015年12月对该4个井筒的稳定情况进行了评价。结果表明:以水位降和地层压缩量为评价因素,西风井有破裂的可能性,主井稳定情况存在不确定性,副井和东风井破裂的可能性较小。为进一步确定主井的稳定性及增加评价的准确性,选取8个影响井壁稳定的主要因素作为判别因子,并收集11个已知结果的兴隆庄煤矿样本建立数学模型,运用最小距离判别法对预测样本进一步评价,发现主井在2015年12月会有破裂的可能性,该4个井筒破裂的危险程度由大到小排序依次为:西风井>主井>副井>东风井。In order to furtherly improve the evaluation system of the mine shaft,based on the mine main shaft,mine auxiliary shaft,east ventilation shaft and west ventilation shaft in Xinglongzhuang Mine as the examples,the improved experiment fitting method and the multi statistic distance judgement method were applied to evaluate the stability conditions of the four mine shafts on December,2015. The results showed that based on the water table dropping and the strata compression value as the evaluation factors,the west ventilation shaft had a possibility of cracking,the stability of the mine main shaft had an uncertainty and the mine auxiliary shaft and the east ventilation shaft had a small possibility of the cracking. In order to furtherly determine the stability of the mine main shaft and to increase the accuracy of the evaluation,there were eight main factors affected to the stability of the mine shaft liner taken as the judgement factors. There were 11 selected known results of Xinglongzhuang Mine samples applied to establish a mathematic model. The min distance judgement method was applied to the further evaluation of the predicted samples. The possibility of the cracking on the mine main shaft was found on December,2015. The danger degree of the four mine shaft broken was in a sequence from large to small and they were the west ventilation shaft,mine main shaft,auxiliary shaft,east ventilation shaft.

关 键 词：井筒失稳 井筒稳定性评价 井筒破裂 距离判别法 

分 类 号：TD262[矿业工程—矿井建设]