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虎盘水电站大坝竣工后，经过第１次寒流后产生了４条裂缝。经过分析其形成的原因是多方面的，主要可能是环境温差、温控措施、约束条件、间歇施工、间断养护、保温条件、宝库施工、水泥用量、骨料性质等。自采用机械压力灌浆后，漏水现象逐渐消失，水库运行至今再未发现异常。
After completion of the dam of the Hepan Hydropower Station, it produced 4 cracks after the first cold current. After analysis of its formation for many reasons, the main may be the temperature difference, temperature control measures, constraints, intermittent construction, intermittent conservation, thermal insulation conditions, treasurer construction, cement consumption, aggregate properties. After the mechanical pressure grouting, the phenomenon of water leakage gradually disappeared, so far no abnormalities have been found in the operation of the reservoir.