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通过对坝地高粱、玉米耐淹实验资料的计算分析,初步了解了坝地土壤的入渗特征:坝地入渗率的大小与淹水深度呈正相关;坝地从初渗到稳定入渗所需时间,清水为48小时,洪水为168小时;其稳定入渗率,清水为0.17~0.24mm/min,洪水为0.017~0.023mm/min。上述计算成果为坝地防洪保收和设计淤地坝的放水建筑物提供了依据。
Through the calculation and analysis of the inundation data of sorghum and maize in dam site, the infiltration characteristics of the soil in the dam site are preliminarily understood: the infiltration rate of the dam site is positively correlated with the depth of submergence; from initial seepage to stable infiltration It took 48 hours for fresh water and 168 hours for flood. The steady infiltration rate was 0.17-0.24mm / min for clear water and 0.017-0.023mm / min for flood. The above calculation results provide basis for dam flood control and drainage design of silt dam.