地震波CT在塑性混凝土防渗墙检测中的应用  

The Application of Seismic Wave CT to Quality Testing on Plastic Concrete Cut-off Walls

作　　者：孙文怀[1] 刘伟[1] 李长征[2,3] 张清明[2,3] 王锐[2,3] 

机构地区：[1]华北水利水电学院,河南郑州450045 [2]黄河水利科学研究院,河南郑州450003 [3]黄河水利委员会基本建设工程质量检测中心,河南郑州450003

出　　处：《华北水利水电学院学报》2013年第1期83-85,89,共4页North China Institute of Water Conservancy and Hydroelectric Power

基　　金：水利公益性行业专项资助项目(200901053)

摘　　要：针对地下隐蔽工程——塑性混凝土防渗墙的特点,采用电火花作为震源的地震波CT技术对某水利工程塑性混凝土防渗墙的质量进行无损检测,并对部分墙体进行钻孔取芯和注水试验验证.结果表明:地震波CT技术用于防渗墙质量无损检测可直观地反映墙体介质分布的连续性,并可有效地分辨墙体可能存在的质量缺陷,在防渗墙质量无损检测中具有广阔的应用前景.In view of characteristics of the plastic concrete cut-off wall in the underground engineering, the nondestructive testing on the plastic concrete cut-off walls in a water conservancy project was carried out by the seismic wave CT technology using the electric spark as the excitation source. The tests of drilling for core and water injection for parts of cut-off wails were conducted to verify the nondestructive testing. The results showed that the seismic wave CT technology used in nondestructive detection of the cut-off wall quality could intuitively reflect the continuous distribution of wall medium, and distinguish effectively the potential quality defects existing in the wall. The seismic wave CT technology will applied widely to nondestructive testing on cut-off walls.

关 键 词：塑性混凝土 质量检测 地震波CT 电火花震源 

分 类 号：P631.4[天文地球—地质矿产勘探] TV698.1[天文地球—地质学]