水上瞬变电磁勘探在西气东输工程中应用研究

Application of Transient Electromagnetic Exploration on Water to the West-to-East Gas Transmission Pipe Line Project

在河道等水域工程地质勘察工作中,用常规物探方法难以划分地层结构,确定断裂构造的位置和基岩面的起伏形态。以西气东输涪江段水上管线穿越为例,介绍了瞬变电磁勘探在水上勘探中的应用。实践证明:瞬变电磁勘探在勘探基岩及划分岩层方面效果较好。

In geological exploration in rivers and other water projects,by traditional geophysical exploration methods it＇s difficult to differentiate strata structure,determine location of faults,identify configuration of bedrock surface.In the paper take the section of West-to-East Gas Transmission Pipe Line crossing Fujiang River as an example,the application of transient electromagnetic exploration on water was presented.The practice proved that transient electromagnetic exploration has good effect in exploring bedrock and differentiating rock strata.