利用地震波CT 技术精细化探测隧洞间岩溶构造

大坝与安全 ›› 2014 ›› Issue (1): 57-.

利用地震波CT 技术精细化探测隧洞间岩溶构造

蔡连初，缪念有

1.浙江华东工程安全技术有限公司，浙江杭州，310014；2.华东勘测设计研究院有限公司，浙江杭州，310014）

收稿日期:2013-08-01 出版日期:2014-03-01 发布日期:2014-03-01
作者简介:蔡连初（1969- ），男，汉族，湖南湘潭人，高级工程师，长期从事工程地质勘探和地质超前预报工作。

Fine detection of Karst structure by seismic CT technology

CAI Lian-chu and MIAO Nian-you

Received:2013-08-01 Online:2014-03-01 Published:2014-03-01

摘要/Abstract

摘要： 地震波CT技术主要用于二维空间探测，为查明某水电工程隧洞间围岩的溶蚀构造，布置多组交叉地震波CT探测剖面，利用二维地震波CT技术反演得到隧洞间围岩波速的空间分布，然后用专门的绘图软件绘制三维波速等值面并形成三维实体图形。根据三维实体图形中低波速围岩的空间分布，分析判断溶蚀构造的形态，从而实现对岩溶构造的精细化探测。

关键词: 地震波CT, 岩溶构造, 三维精细探测

Abstract: The seismic CT detecting technology is mainly used in two-dimensional space. To find out the Karst structure in the surrounding rock between the tunnels at a hydropower project, sets of crossing seismic CT detecting section were arranged and 2-d seismic CT technology was applied to detect the spatial distribution of wave velocity in the surrounding rock between the tunnels. Followed, a special drawing software rendering 3-d contour surface of wave velocity was adopted to form a 3-d materialized view. By analysis of the spatial distribution of low wave velocity, the Karst structure can be obtained.

Key words: seismic CT, Karst structure, 3-D fine detection

蔡连初¹，缪念有². 利用地震波CT 技术精细化探测隧洞间岩溶构造[J]. 大坝与安全, 2014, 0(1): 57-.

CAI Lian-chu and MIAO Nian-you. Fine detection of Karst structure by seismic CT technology[J]. dam, 2014, 0(1): 57-.