基于抽采监控数据的自动测定瓦斯抽采半径研究  

Study on automatic determination method of gas extraction radius based on monitoring data

作　　者：邹云龙[1,2] 宋志强[1,2] 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037

出　　处：《能源与环保》2017年第6期8-12,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家"十三五"重点研发计划(2016YFC0801404);重庆市"科技创新领军人才支持计划"(CSTCKJCXLJRC14);中国煤炭科工集团有限公司科技创新基金(2013ZD002)

摘　　要：瓦斯抽采半径测定是矿井瓦斯治理的主要依据之一。针对压降法、气体示踪法测定瓦斯抽采半径实测时间长、工艺复杂、不能适用于全矿井的难题,采用瓦斯计量溯源理论,根据同一抽采支路抽采监控数据的变化特征,追踪溯源研究各区段抽采钻孔长度、抽采时间与抽采量之间的二次叠加关系,建立了瓦斯抽采计量二次叠加函数,成功求得单位钻孔长度瓦斯抽采规律,实现了利用瓦斯抽采监控数据直接测定瓦斯抽采半径。该方法在潞安集团司马煤业3号煤层1206辅助进风巷道应用后,测得的抽采半径与矿井采用压降法测得的抽采半径相近,证明了方法的可靠性。该技术的研究使得煤矿瓦斯抽采半径可以快速、实时测定,为矿井"一面一策"瓦斯治理技术的落实提供了技术支撑。Radius of gas extraction measurement is one of the main basis of mine gas manageof gas tracer method to determine the gas extraction from the measured time is long,the craft is complex and cannot be used throughout the problem in all of mine. Using gas measurement trace ability theory ^according to the same extraction branch extraction change char-acteristics of monitoring data, through the analysis on the two folding relationship of the length of drillingquanlity of each regions,and the two folding function for the calculation of gas drainage was established. The rules of gas drainage of unit drilling length was achieved successfully, which has implemented measuring the radius of gas extraction directly by using monitoring da-ta. The method was applied in 1206 auxiliary intake tunnel in No. 3 coal seam of Sima Coal Industrgas drainage radius was similar to the results gained by pressure drop method’which has proved the reliability of the method. The re-search of this technolooy makes the gas drainage radius of coal mine can be achieved rapidly and be measured in time,and provided technical support for the implementation of ＂corresponds to a strateg of a working face＂ about coal mine gas control technology.

关 键 词：抽采监控数据 瓦斯抽采半径 抽采时间 自动测定 叠加函数 

分 类 号：TD712.6[矿业工程—矿井通风与安全]