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李文溢, 杨阿敏, 周维博.平原水库渗流场模拟及渗漏量计算——以斗门水库试验段为例水资源与水工程学报[J].,2019,30(1):66-72
平原水库渗流场模拟及渗漏量计算——以斗门水库试验段为例
Seepage field simulation and leakage calculation in plain reservoir: Taking the test section of Doumen Reservoir as an example
  
DOI:10.11705/j.issn.1672-643X.2019.01.11
中文关键词:  平原水库  数值模拟  地下水渗流场  渗漏量  渗漏强度
英文关键词:plain reservoir  numerical simulation  groundwater seepage field  leakage amount  leakage strength
基金项目:陕西省水利科技项目(2018slkj-10)
作者单位
李文溢1,2, 杨阿敏1,2, 周维博1,2 (1.长安大学 环境科学与工程学院 陕西 西安 7100542.长安大学 旱区地下水文与生态效应教育部重点实验室 陕西 西安 710054) 
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中文摘要:
      以陕西省斗门水库试验段为例,通过野外取样及室内试验分析计算了库底沉积物的渗透系数,运用解析法求得了库区渗漏量和渗漏强度,采用数值法模拟了水库蓄水条件下的地下水流场变化。结果表明:库底沉积物渗透系数量级为10-3 m/d,渗漏强度约为14.97 mm/a,库区东北部渗透系数及渗漏强度较大;库区渗漏量约为7 070.05 m3/a,约占总库容的4.6‰,渗漏量变化受降水量影响较为明显;水库蓄水5年后区域地下水位整体抬升0.1~0.5 m,库区东北部地下水水力梯度明显增大,地下水流向发生偏转。
英文摘要:
      Taking the test section of Doumen Reservoir in Shaanxi Province as an example, the permeability coefficient of the sediment at the bottom of the reservoir was calculated by field sampling and laboratory test. The leakage amount and leakage strength of the reservoir area were obtained by analytical solution, and the groundwater flow field changes under reservoir water storage conditions was simulated by numerical method. The results showed that the permeability coefficient of the sediment at the bottom of the reservoir and the leakage strength were 10-3 m/d and 14.97 mm/a, respectively; and the permeability coefficient and leakage strength in the northeastern part of the reservoir area were relative large. The leakage in the reservoir area was about 7070.05 m3/a, accounting for 4.6‰ of the total storage capacity, and the leakage change was more affected by the precipitation. After five years of reservoir impoundment, the regional groundwater level rises 0.1~0.5 m, and the groundwater in the northeast of the reservoir area. The force gradient significantly increased and the groundwater flow direction deflected.
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