童亭煤矿矿副井井筒变形及地面沉降监测
本文选题：井筒 + 预测 ； 参考：《安徽理工大学》2016年硕士论文
【摘要】：煤炭作为我国的主要能源,在国民经济的发展中发挥着重要的作用,随着国家对煤矿产业结构的调整,既需要对老矿区进行维护也要对在建矿区加强监测,不断提高煤矿的产量和效率。因此如何合理的对井筒进行实时有效的监测就显得尤为重要,同时也要研究其内在的基本规律以便于提前预测。本文分析了立井井筒的受力和井壁的混凝土破坏准则,从而进一步研究井筒的变形并对其监测。结合童亭煤矿的工程项目,在跨越整个井壁上对称布置2个水平共8个井壁混凝土变形监测点(每个水平对称布置4个测点),用以监测井壁在第四含水地层段的竖向位移变化特征,以便获得“四含”段的井壁竖向压缩量的变化数据；地面人工观测童亭矿区工广范围内的地面沉降量随时间的变化趋势,结合井壁竖向压缩监测的结果,为从理论上阐明童亭矿区的井壁变形与地面沉降的发生机理提供基础数据；观测矿区各含水层(主要是四含)水位变化特征,获得含水层水位变化与相应井壁竖向应力变化和地面沉降之间的相关联数据,为井筒安全的预测预报提供监测数据。综合上述的数据来研究童亭煤矿副井井筒的地面变形规律。
[Abstract]:As the main energy of our country, coal plays an important role in the development of national economy. With the adjustment of the industrial structure of coal mine, it is necessary to maintain the old mining area and to strengthen the monitoring of the mining area under construction. Increasing the output and efficiency of coal mines. Therefore, how to reasonably monitor the wellbore in real time and effectively is particularly important. At the same time, it is necessary to study the basic law of wellbore in order to predict ahead of time. In this paper, the stress on the shaft and the concrete failure criterion of the shaft wall are analyzed, and the deformation of the shaft is further studied and monitored. Combined with the project of Tongting Coal Mine, Two horizontal and eight horizontal concrete deformation monitoring points are arranged symmetrically across the entire shaft lining (each horizontal symmetrical arrangement of 4 measuring points) to monitor the vertical displacement characteristics of the shaft lining in the fourth water-bearing formation, In order to obtain the variation data of vertical compression of shaft wall in "four containing" section, and to observe the variation trend of land subsidence with time in Tongting mining area, combined with the result of vertical compression monitoring of shaft wall, In order to provide basic data for explaining theoretically the occurrence mechanism of shaft wall deformation and ground subsidence in Tongting mining area, and to observe the water level variation characteristics of each aquifer (mainly four contents) in the mining area, The correlation data between aquifer water level change and vertical stress change of shaft wall and land subsidence are obtained, which can provide monitoring data for wellbore safety prediction. Based on the above data, the surface deformation of auxiliary shaft in Tongting Coal Mine is studied.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD32
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