陕西省榆林市境内某高速公路主要工程地质问题及对策

Main Engineering Geological Problems and Countermeasures for an Expressway in Yulin City of Shanxi Province

通过资料收集、地质调绘、勘探、物探及室内土工试验,综合分析了某高速公路沿线的工程地质特征及水文地质条件,指出该公路沿线的特殊岩土有湿陷性黄土、膨胀岩、人工填土,主要不良地质有煤矿及小煤窑采空区、崩塌落石。针对沿线的主要工程地质问题提出了相应的工程处理措施意见,为设计、施工提供参考。

Based on the data collection,geologic surveying and mapping,exploration,geophysical prospection and laboratory geotechnical tests,the author comprehensively analyzes the engineering geological feature and hydrogeological conditions along an expressway,and points out that the special rock and soil along the expressway are the collapsible loess,expansive rock and artificial filling,and the main unfavorable geologies are the goafs of coal mine and small coal mine,and collapse and filling rocks.The relative engineering countermeasures are proposed for the main engineering geology problems along the expressway,which can be referred for the design and construction.