廖  智
    （天津市勘察院，天津300191）

[摘要] 天津市蓟县杨庄截潜工程是天津蓟县重要的水利工程，由于年久失修，目前发现大坝混凝土趾板与底孔出现裂缝。为保证工程质量与水利工程的正常使用，蓟县水利局已委托有关部门对部分裂缝采用垂直灌浆加固处理。为检验裂缝灌浆加固后的质量，查清大坝部分裂缝的宽度与深度，采用弹性波CT方法并结合超声波法技术对其进行检测，发现裂缝在灌浆加固处理后仍存在空隙，并准确测得裂缝的宽度与深度，本次检测结论为工程进一步处理起到了很好的指导作用。
[关键词] 大坝；灌浆加固；裂缝；弹性波CT法；超声波法
中图分类号：TU195    文献标识码：A    文章编号：1002-848X(2011) S2-0334-04

Application of integrated geophysical method in inspection of dam cracking size and grouting effect
Liao Zhi
( Tianjin Institute of Geotechnical Investigation ＆Surveying, Tianjin 300191,  China)

Abstract: Tianjin Jixian Yangzhuang sectional dive project is the important water conservancy project construction, because oflong years out of repair, now find concrete dam toe slab and clamping cracks. To ensure the engineering quality and the normal use of water conservancy, the Jixian Water Conservancy Bureau had been entrusted the relevant departments for part of crack by the grouting reinforcement. For examining the fracture grouting in quality, the dam section of crack width and depth was found out, elastic wave CT method combined with ultrasonic technique was used to detect the grouting strengthening. It is concluded that the fracture gaps still exist, and crack width and depth are accurately determined. The test conclusion has played a very good directive function for engineering further treatment.
Keywords: dam; grouting reinforcement; crack; elastic wave CT method; ultrasonic method detect