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建于50年代的大沙河水库,坝后河床处出现严重泉涌及砂沸现象,靠近坝脚处较为严重,虽多次采取措施加固维修,坝后河床渗漏仍较大,渗流量达0.06306m~3/s。1991年对该水库工程进行设计复查、地质钻探取样,对坝体、坝基进行质量检查和渗流稳定分析,决定采用劈裂灌浆与高喷灌浆结合处理加固该坝。经处理后,渗流量减少0.063m~3/s,效果十分显著。
Dashahe Reservoir, built in the 1950s, experienced serious spring intrusion and sand boiling phenomenon at the post-dam riverbed near the foot of the dam. Although many measures were taken to reinforce and repair the seepage, the leakage of the post-dam riverbed was still still large, and the seepage volume reached 0.06306m ~ 3 / s. In 1991, the reservoir was designed to review, geological drilling sampling, dam, dam foundation for quality inspection and seepage stability analysis, decided to adopt split grouting and high jet grouting combined to strengthen the dam treatment. After treatment, seepage flow decreased 0.063m ~ 3 / s, the effect is very significant.