工程物探方法在隧道勘察中的应用

本文以陈庄隧道的工程勘察为例,讨论了运用综合工程物探方法对该隧道进行勘测的可行性,阐述了综合工程物探方法在查明风化层分层、断层、地下水分布等情况中的野外工作方法和技术,并对各物探方法所得的结果进行了单独解释和综合解释,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、塌陷等情况也作了讨论。

THE APPLICATION OF ENGINEERING GEOPHYSICAL PROSPECTING METHOD TO THE TUNNEL RECONNAISSANCE

With the engineering reconnaissance of Chenzhuang tunnel as an example, this paper deals with the feasibility of applying the integrated engineering geophysical method to the reconnaissance of this tunnel, describes field techniques of the integrated engineering geophysical prospecting ’ method in finding out geological conditions such as division of weathering bed, faults and distribution of gToundwater, and makes individual explanations and integrated explanation for results obtained by various geophysical prospecting methods. An inspection of the drilling data indicates that the effect is quite satisfactory. In addition, a discussion is given concerning the fault and collapse which are probably encountered in the process of tunnel excavation.