摘要
对山东省高唐县尹固规划水源地群井开采条件下承压水位的变化进行了数值模拟。预测结果表明,在抽水量30 000m3/d的情况下,开始抽水的5年内,井内承压水位下降速度较快,之后下降速度趋缓,10年后降至埋深50m左右;而开采的影响范围将逐渐扩大。因此尽管规划水源地可以满足日供水量30 000m3/d的规划要求,但从长远考虑,还是应当以开发浅层地下水为主,深层地下水为辅。
: The dynamic change of water pressure in confined aquifer under exploitation of wells is simulated in the planned well field in Gaotang County of Shandong Province. The result shows that under the exploitation of 30,000 cubic meters water per day,the water pressure head in the wells will drop rapidly in the first 5 years. Then the dropping velocity will slow down with the pressure head dropping to 50m under ground surface after 10 years of exploitation. However,the scope being influenced by exploitation will develop gradually. Therefore,although the requirement for the exploitation of 30,000m3/d can be met in a certain period in the planned well field,the shallow groundwater should be exploited mainly with the confined groundwater as supplement with the consideration of sustainable water exploitation.
出处
《水文》
CSCD
北大核心
2001年第2期25-27,共3页
Journal of China Hydrology
关键词
地下水
数值模拟
群井抽水
承压水头
日供水量
开采
: groundwater; numerical simulation; pumping by wells; confined water head