【摘要】 以页岩的不良工程性质和围岩分级依据为基础,探讨公路隧道页岩浅埋段的超前地质预报方法的优化组合.通过比较国内外现有的各种超前地质预报方法的优缺点,提出了以TSP法和双频激电法为主、根据工程项目的等级适当考虑采用探地雷达作为补充的一套组合方案.而在某些特别复杂地段建议采用水平钻探加以验证.应用这套方案在常(德)—张(家界)高速公路第十合同段的关口垭隧道进行了一次科研试验,对预报结果进行详细的处理和分析后,给施工单位提出了相应的施工建议.后期的跟踪调查结果表明,试验成果与实际情况基本吻合,给予了施工正确的指导,达到了试验目的.更多还原

【Abstract】 Based on the bad engineering property of shale and the basis of rock body classification,discuss the best combination of all kinds of advanced geological prediction method which is applicable to shale region.After contrasting the advantage and disadvantage of every method,the combination of TSP203 and induced polarization is more reasonable.In some special complicated regions,geology radar and horizontal drill can be as the assistance means.We have made an experiment in GuanKouYa tunnel by this way.After analyzing the forecast result detailedly,some relevant construction advice are brought forward.And the actual result certificate that the forecast result is very accurate.Provided the basis of science for the construction unit.更多还原