多旁水库坝基帷幕灌浆质量检测

Curtain grouting quality inspection for dam foundation of Duopang Reservoir

百色市德保县多旁水库位于岩溶发育地区,是一座通过帷幕灌浆封堵地下岩溶通道形成的中型水库。采用常规钻孔压水试验结合电磁波CT探测点面结合检测技术对帷幕灌浆进行质量检测。结合压水试验结果和电磁波CT探测判断,该工程JZK3、JZK6、JZK8共3个孔帷幕灌浆质量满足设计要求,其余10孔帷幕灌浆质量不满足设计要求。

Located in a karst developed area of Debao County in Baise City,Duopang Reservoir is a medium-scale reservoir constructed by blocking the underground karst channel with curtain grouting.The quality of curtain grouting was inspected by point detection and surface detection technology of conventional borehole pressure water test combined with electromagnetic CT.The results of inspection demonstrate the quality of curtain grouting for three holes of JZK3,JZK6 and JZK8 satisfies the design requirements,while that for the rest 10 holes does not meet the design requirements.