基于矿井隧道施工地质雷达预报技术的应用研究

Application of mine geological radar forecast during tunnel construction

采用地质雷达技术对煤矿井隧道进行连续超前探测,研究地质雷达技术在煤矿井隧道施工超前预报中的工作规律。首先通过分析以往非煤矿井隧道地质雷达超前预报不良地质体的探测资料,总结出几种隧道内典型不良地质体地质雷达异常特征,并深入探讨如何结合这几种地质雷达典型异常特征来解决煤矿井隧道施工地质超前预报问题;其次以贵州六枝某煤矿井隧道地质超前预报为例,采用已总结得到的煤矿井隧道地质雷达波异常特征分别对矿井内部隧道掌子面前方岩溶溶蚀、构造节理裂隙及富水等常见的不良地质异常进行探测分析;最后通过实际隧道开挖来验证地质雷达异常分析结果的准确性,为煤矿井隧道施工提供较准确的预报信息,更好指导隧道信息化施工。

Using ground penetrating radar technology to continuous advance detection of coal mine tunnel,study of geological radar technique in coal mine tunnel construction work of advanced prediction rule.Through analysis of past non-coal mine geological radar in tunnel detection of advanced forecasting geological information summarizes several typical geological features of geological radar in tunnels,and discussed how to combine these features to solve the coal mine geological radar typical geological advance forecast during tunnel construction issues followed with six pieces of tunnel geological advanced prediction in a coal mine in Guizhou province as an example,Used coal mine well tunnel geological radar wave exception features respectively on mine internal tunnel Palm child surface ahead rock dissolved dissolution,and structure section acting fractured and the rich water,common of bad geological exception for detection analysis;last through actual tunnel excavation to validation geological radar exception analysis results of accuracy,for coal mine well tunnel construction provides more accurate of forecast information,better guide tunnel information construction.