摘要
本文以陈庄隧道工程勘察为例,讨论了运用综合工程物探方法进行隧道勘测的可行性,阐述了查明风化层分层、断层、地下水分布等的野外工作方法和技术,并对各种物探方法所得的结果进行了单独解释和综合解释,从而避免了单一物探方法的多解性,提高了解释结果的可靠性,经钻孔资料验证,效果良好。另外,对在隧道开挖过程中可能遇到的断层、塌陷等情况也做了讨论。
The integrated engineering geophysical method for solving the problems of hydrogeology and engineering survey is being paid more attention to. However, the multiple interpretation about the single geophysical method reduces the reliability of its results, and causes the application of this method to be limited in a certain field. Adopting the integrated engineering geophysical method may avoid these shortcomings, and it has such advantages as less investment and high efficiency. The synthetical analysis interpretation of the data about the engineering geophysical prospecting and the hydrogeological engineering survey can save the well drilling expense greatly, and provide more information about the underground situations in a larger field. So it can fully show the abvantages of the geophysical exploration method, and ensure the reliability of its results. In this paper, taking the engineering survey of the Chenzhuang tunnel as an example, the authors have discussed the feasibility to surveying the Chenzhuang tunnel by the integrated engineering geophysical method. They expound the field working technique and skills of the integrated engineering geophysical method by which they find weathering layers, faults and ground water distributions. Every geophysical exploration result has been interpreted individually and synthetically. They avoided the multiple explanation of the single geophysical method and heightened the reliability of the intepreted results. The borehole data show that the results are very reliable. Besides, this paper has also discussed the faults and subsidence that might be subjected during digging the tunnel.
关键词
隧道
物探
综合解释
tunnel, engineering geophysics, integrated interpretation