摘要
本文从原型观测资料、填筑土料同基岩接触面抗渗强度的室内模拟试验以及渗流计算三方面进行了陆浑大坝安全分析。结果表明:目前大坝的运行状态是正常的,水库在缓慢蓄水过程中,截水槽原施工中存在的薄弱地带可以得到渗透加固,截水槽中的填土与岩石结合面的抗渗比降均可达50以上,为设计洪水位下可能出现的水力比降的7.4倍。大坝今后有条件投入正常运行。
Up to now, the Luhun Dam has been taken into account as a dangerous dam due to existing frail part of cut-off wall during construction. The author evaluated the safety of the present dam if it is put into normal operation, based on safety analy sis of prototype observation, results of indoor simulated test on piping resistance and seepage calculation. The results showed that, the present dam is in the normal operation, original frail part of cut-off wall could be consolidated during the slow storage of the reservoir, and the piping resistance of the junction surface of cut-off trench rises up to 50, which is 7.4 times of possible hydraulic gradient under the design flood level of the reservoir. So it is possible to be put into normal.ope ration in the future.
出处
《人民黄河》
CAS
北大核心
1990年第5期12-16,共5页
Yellow River
