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人工示踪技术可较为准确地估算地下水渗透流速的大小,本文提出在地下水含盐度较高的滨海地区利用淡水作为间接示踪剂进行钻孔内水体置换,通过电导率试验采集电导数据并进行数据分析估算地下水渗透流速的大小,并推导了理想化条件下的地下水渗透流速的计算公式。在工程中进行了原位测试试验,试验结果表明该方法能较好的估算高盐度滨海地区地下水渗透流速的大小。
Artificial tracer technology can accurately estimate the size of groundwater infiltration velocity. In this paper, we propose to use fresh water as an indirect tracer in the coastal areas with high salinity of groundwater to conduct borehole water displacements. Conduct conductance tests to collect conductance data and conduct Data analysis estimates the infiltration velocity of groundwater, and deduces the calculation formula of groundwater infiltration velocity under ideal conditions. The in situ test was carried out in the project. The experimental results show that this method can better estimate the infiltration velocity of groundwater in high salinity coastal area.