摘要
怀柔应急水源地自运行以来一直续采至今,由于连续干旱和多年的超设计规模运行,导致区内水文地质条件发生了较大变化,为保证其"应急供水"的能力,具备随时启动供水的功能,结合南水北调水源进京的机遇,从资源回补涵养和供水系统的热备运行两方面开展研究工作。在综合分析区域水文地质条件和研究多年地下水动态变化规律的基础上,利用地下水数值模型对怀柔应急水源地在不同开采条件下的回补方式和效果进行模拟,拟定了南水北调进京后区域水资源人工回补方案及应急水源地的热备运行方案,并模拟预测了水源地热备运行和地下水涵养效果,为怀柔应急水源地可持续供水提供科学依据。分析结果表明:南水北调水源进京后,怀柔应急水源地可采用夏季高峰集中供水与日常保压相结合的"集中开采"方案和日常"稳压开采"方案。
Huairou emergency water source has been continuously exploited since it began to be operated. Due to continuous drought and years of ultra-scale operation, the regional hydrogeological conditions have been changed greatly. To ensure its ability of ＂emergency water supply＂ and its function of ready-to-supply, this work has been done from the aspects of resource recovery conservation and water-supply system hot-standby operation under the circumstance of South-to-North Water Diversion into Beijing. On the basis of comprehensive study of regional hydrogeological conditions and groundwater perennial dynamic variations, it simulated the recharging ways and effects to Huairou emergency water source under different mining conditions by groundwater numerical model, made the plans of artificial recharging to regional water resource and hot-standby operation of water-supply system. It also simulated and predicted the effects of hot-standby operation and groundwater conservation, and provided the scientific basis for the sustainable water supply of Huairou emergency water source. The results showed that： at Huairou emergency water source, the centralized water supply in summer peak and the daily pressure-maintaining ＂centralized exploitation＂ and ＂stable-pressure exploitation＂ can be used after South-to-North Water Diversion into Beijing.
出处
《城市地质》
2016年第1期69-74,共6页
Urban Geology
关键词
水源地
数值模拟
地下水
水源涵养
Water source
Numerical simulation
Groundwater
Water conservation
