摘要
隧道开挖揭露的岩溶形态主要有溶管、溶槽、溶洞和暗河等,施工中需要对这些岩溶形态进行定量描述,以便根据不同形态的岩溶及其特性提出相应的开挖和支护措施。对于空溶洞,多采用一般测绘手段即可;但对于充填溶洞边界和暗河底部堆积物或深度的探测,是目前岩溶隧道施工过程中的一个棘手问题。作者采用HSP声波反射法对几个大型充填溶洞或暗河的探测实例表明,采用该方法探测充填型溶洞边界是可行的,值得在其它类似工程中参考应用。
There are some kinds of karst forms such as karst-pipes, karst-channels, karst-caves and underground-rivers discovered during tunnel construction. These kinds of karst need detail description for construction to plan drilling and supporting according to the characteristics of each karst form. It is easy to detect cavity by using ordinary surveying. But for the detection of the borders of the filled-karsts and underground rivers, it is a very difficult problem for karst tunnel construction. In this paper, the authors have done several tests to detect the boarders of filled-karsts and underground rivers by using Horizontal Sound Probing (HSP). It has been certified that it is feasible by using the method to detect the filled-karst borders and the method can be referred to by similar projects.
出处
《现代隧道技术》
EI
北大核心
2005年第3期54-58,共5页
Modern Tunnelling Technology
关键词
HSP声波反射法
充填溶洞
边界探测
Horizontal Sound Probing (HSP)
Filled-karst
Border
Detection
