江苏连云港青湖闸设计流量及水位计算

Calculation of Design Flow and Water Level of Qinghu Gate in Lianyungang,Jiangsu Province

基于江苏连云港青湖闸安全隐患严重需拆除重建的情况,采用Mike11一维非定常水动力学模型建立河网概化模型计算水闸设计流量及水位,进而为后续除险加固设计方案提供工程规模设计依据。结果表明:本次河网模型计算河道上游水位结果较实际测量值偏低、青湖闸处水位结果较其偏高,使得计算结果偏于安全,水位流量等参数可以作为下一步规模论证的可靠依据,且能够满足青湖闸所在石安河流域50年一遇泄洪要求。

Based on the serious safety hazard of Qinghu Gate in Lianyungang,Jiangsu that needs to be demolished and reconstructed,the Mike11 one-dimensional unsteady hydrodynamic model was used to establish a generalized model of the river network to calculate the design flow and water level of the sluice.And then provide engineering scale design basis for the follow-up risk elimination and reinforcement design plan.The results show that the water level of the upstream of the river channel calculated by this river network model is lower than the actual measured value,and the water level at the Qinghu sluice is higher than it.The calculation results are biased towards safety,and parameters such as water level and flow can be used as a reliable basis for the next scale demonstration,and can meet the 50-year flood discharge requirements of the Shi'an River Basin where the Qinghu Gate is located.