桥梁桩基钻孔溶洞探测与处治技术研究

发布时间：2018-03-10 05:32

  本文选题：桩基钻孔　切入点：岩溶勘测技术　出处：《长安大学》2015年硕士论文　论文类型：学位论文

【摘要】：本文通过对岩溶地区钻孔灌注桩侧(底)溶洞探测方法、岩溶地质隐患、桩基稳定性、岩溶勘测技术等研究,对岩溶地区的桩基设计、地质隐患的评价体系以及综合勘测技术等都有了更加全面的认识,并且针对出现地质隐患的位置,根据桩基的类型提出相应的处置方式,并结合工程实例进行了详细的阐述,具有较强的指导意义。在岩溶区进行勘察时,通过钻探与物探等勘察方式综合运用,可以比较准确、全面的反映出岩溶地质情况,提高设计、施工的可靠性,以避免单一勘察所提供的不确切的结果给工程带来不良的后果,确保工程达到经济合理的目的。文章中还详细概括了桩基钻孔溶洞特征,并通过各种影响因素对稳定性进行了全面的分析,还采用数值模拟的方法建模分析了建筑物基础下或路基下溶洞顶板稳定性。最后,通过对铜川市川口大桥的理论分析和工程实践的研究,归纳总结出桩侧(底)溶洞探测方法与选取,然后通过对各种溶洞处治技术的概括比较,得出切实可行的桩基钻孔溶洞处治技术与方案,具有较强的参考价值。
[Abstract]:Based on the bored piles in karst area (bottom side) detection method of karst cave, karst geological hazards, pile foundation stability, the study of karst survey technology, the design of pile foundation in karst area, the geological hazard evaluation system and comprehensive survey technology have a more comprehensive understanding, and according to the geological hazard location, according to the pile foundation the type of the corresponding disposal methods, and described in detail with an engineering example, has a strong guiding significance. The investigation in karst area, through comprehensive drilling and geophysical survey and other methods, can accurately and fully reflect the karst geological conditions, improve the reliability of design, construction, to avoid a single the survey does not provide the exact result of adverse consequences for the project, to ensure that the project achieved the economic purpose. The article also summarizes the pile with the features of karst caves ,骞堕，

本文编号：1592006