钻孔地震CT技术在岩溶精细探测中的应用  

Application of borehole seismic CT detection in karst investigation

作　　者：陈煊 胡树林 张光耀 左勖 刘金彪 

机构地区：[1]中国石油集团工程设计有限责任公司华北分公司勘察事业部,河北任丘062522

出　　处：《工程勘察》2014年第2期86-91,98,共7页Geotechnical Investigation & Surveying

摘　　要：在岩溶的勘察中,利用钻孔地震CT技术的高分辨率,可有效地查清地下岩溶的发育及空间展布情况,用于指导拟建构(建)筑物后期的设计与施工,从而有效地避免岩溶对工程质量的影响,提高工作效率,节约成本。本文主要论述了钻孔地震CT技术的工作原理、观测系统设计、野外工作方法及几个重要参数的选择。结合工程的实际应用和详细分析,总结了钻孔地震CT技术的工作流程及其对岩溶探测的精度问题。In the investigation of karst, high resolution borehole seismic CT method could effectively find out the karst development and space distribution which would guide the design and construction, ensure the construction quality and save the cost. This paper mainly discusses the working principle of borehole seismic CT technology, the observation system design, fieldwork operation method and parameter selection. Combined the practical application and detailed analysis, the working process of borehole seismic CT technology and its precision problem of karst are summarized.

关 键 词：钻孔地震CT 岩溶 层析成像 观测系统 

分 类 号：P631.4[天文地球—地质矿产勘探]