【摘要】 超前地质预报技术是信息化施工管理中的重要组成部分,尤其对于某些重大工程,准确、及时的地质预报具有十分重要意义。国内外的学者不断地结合新工艺、新技术,对其进行了深入研究,并已经取得了一些重要的研究成果,例如TSP,GPR等地质超前预报方法等。然而,隧道工程师根据其中的任何一种预报方法仍然不能够获得满意的预报结果。以此为研究背景,结合地质灾害预报技术的研究课题,以地面地质调查法、地质雷达、TSP三种超前地质预报技术为手段,基于系统论的观点提出和建立综合地质预报方法和思想体系。首先,讨论当前隧道超前地质预报中主要存在的问题,分析目前几种流行预报方法的优缺点和局限性;其次,建立综合超前地质预报体系,详述其实现过程,即包括定性分析和定量分析两个阶段;最后,结合广仁岭公路隧道,验证该方法的预报精度达到95%以上。该方法与其他方法相比具有更高的精度和准确性、系统性和实用性。该研究旨在为重大隧道工程提供更加有效和科学的预报方法和分析方法,为隧道信息化施工管理技术提供有意义的参考和借鉴。更多还原

【Abstract】 Technique of geological prediction ahead is one of the important parts in tunnel informational construction,especially for important projects,it is very significant with accurate and instantaneous geological prediction.Many have been studied from different angles with new techniques and methods.Lots of methods have been acquired such as ground penetrating radar(GPR) and tunnel seismic prediction(TSP).However,engineers cannot obtain satisfied results from single prediction method.Based on this background,geological prediction techniques are discussed and studied.And then,according to ground geologic survey,GPR and TSP,a synthetic geologic prediction method is put forward.The problems such as inaccurate and even improper geological prediction,which were found during geological prediction,are discussed and the merits and weaknesses of the three main methods are analyzed.The synthetic prediction method is discussed in detail.And then the realization process is put forward.Finally,the application of the synthetic geological prediction method to the geological prediction ahead of Guangrenling tunnel is illustrated.Two faults are forecasted successfully and the precision reaches 95%.更多还原