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土石坝在施工过程中会在大坝心墙中产生超静孔隙水压力。对于高土石坝,施工期心墙防渗体内产生的超静孔隙水压力难以有效消散,因此坝体内部可能会出现较高的孔隙水压力。结合监测资料分析了填筑料的含水量和施工进度对心墙内孔隙水压力的影响。坝体内的高孔隙水压力对大坝的稳定性和安全性会产生重要影响。因此,加强施工期孔隙水压力的监测与分析工作,对于指导施工与设计,保证大坝的安全具有重要意义。
Earth-rock dam in the construction process will generate excess pore water pressure in the core wall of the dam. For high earth-rockfill dam, it is difficult to effectively dissipate the excess pore water pressure generated in the impervious core wall during construction, so high pore water pressure may appear inside the dam body. Combined with the monitoring data, the influence of water content and construction schedule on pore water pressure in the core wall was analyzed. The high pore water pressure in the dam will have a significant impact on the dam’s stability and safety. Therefore, to strengthen the monitoring and analysis of pore water pressure during construction is of great significance for guiding the construction and design and ensuring the safety of the dam.