隧道急倾斜薄煤层精准探测应用研究  

Application Research on Precise Detection of Steep Thin Seam in Tunnel

作　　者：董远浪 毛凯 DONG Yuan-lang;MAO Kai(China Merchants Chongqing Highway Engineering Testing Center Co.,Ltd.,Chongqing 400067,China)

机构地区：[1]招商局重庆公路工程检测中心有限公司,重庆400067

出　　处：《西部探矿工程》2025年第2期184-188,共5页West-China Exploration Engineering

摘　　要：为了进一步查明谭宝山瓦斯隧道急倾斜薄煤层的准确位置及其详细信息,保障该瓦斯隧道工程的安全施工,预防重大安全事故的发生并提供有效、可靠的超前地质预报探测资料。本工程采用综合地质预报的方法,首先在地质调查法为基础上采用长距离弹性反射波法中的TGP方法进行了长距离的预报探测,初步探测出了该倾斜薄煤层异常体大概位置,在初步位置确定后然后用电磁波反射法(探地雷达)进行短距离预报,准确地探测出异常位置,最后通过超前钻探法对该急倾斜薄煤层位置、产状、煤层厚度、有毒有害气体等进行了详细的探测。通过上述方法得到了该隧道急倾斜薄煤层各种属性信息,为后续设计变更、施工提供宝贵的资料,为该隧道的后续地质预报提供丰富的经验,降低工程风险,预防或减少事故发生,指导了该隧道的安全施工。In order to further investigate the accurate location and detailed information of the steeply inclined thin coal seam in the Tanbaoshan gas tunnel,ensure the safe construction of the gas tunnel project,prevent major safety accidents,and provide effective and reliable advanced geological prediction and detection data.This project adopts the method of comprehensive geological prediction.Firstly,based on the geological survey method,the TGP method in the long-distance elastic reflection wave method was used for long-distance prediction and detection,and the approximate location of the inclined thin coal seam anomaly was preliminarily detected.Then,the electromagnetic wave reflection method(ground penetrating radar)was used for short-range prediction,accurately detecting the anomaly location.Finally,detailed exploration was conducted on the location,attitude,coal seam thickness,and toxic and harmful gases of the steeply inclined thin coal seam using advanced drilling method.Through the above methods,various attribute information of the steeply inclined thin coal seam in the tunnel was obtained,providing valuable data for subsequent design changes and construction,rich experience for subsequent geological forecasting of the tunnel,reducing engineering risks,preventing or reducing accidents,and guiding the safe construction of the tunnel.

关 键 词：急倾斜薄煤层 弹性波反射法 雷达法 钻探方法 超前地质预报 

分 类 号：TD823.21[矿业工程—煤矿开采]