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    廖  智
    （天津市勘察院，天津300191）

[摘要] 天津市薊縣楊莊截潛工程是天津薊縣重要的水利工程，由于年久失修，目前發(fā)現(xiàn)大壩混凝土趾板與底孔出現(xiàn)裂縫。為保證工程質(zhì)量與水利工程的正常使用，薊縣水利局已委托有關(guān)部門對(duì)部分裂縫采用垂直灌漿加固處理。為檢驗(yàn)裂縫灌漿加固后的質(zhì)量，查清大壩部分裂縫的寬度與深度，采用彈性波CT方法并結(jié)合超聲波法技術(shù)對(duì)其進(jìn)行檢測(cè)，發(fā)現(xiàn)裂縫在灌漿加固處理后仍存在空隙，并準(zhǔn)確測(cè)得裂縫的寬度與深度，本次檢測(cè)結(jié)論為工程進(jìn)一步處理起到了很好的指導(dǎo)作用。
[關(guān)鍵詞] 大壩；灌漿加固；裂縫；彈性波CT法；超聲波法
中圖分類號(hào)：TU195    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：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