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弥散系数是预测地下水污染的重要参数.当前国内外普遍采用发散状径向水质模型理论确定弥散系数.该理论除表达式冗长、复杂、不易使用外,且只能孤立地进行.本文提出的汇集状径向弥散理论具有表达式简单、易于推广,且可与生产中经常采用的抽水试验同步进行等长处.采用该理论除了可大大地降低试验成本外,尚可一次测定水流与水质参数.
Diffusion coefficient is an important parameter for predicting groundwater pollution. At present, divergent radial water quality model theory is commonly used to determine diffusion coefficient at home and abroad. This theory is not only lengthy, complex and difficult to use, but can only be performed in isolation. Radial dispersion theory has a simple expression and is easy to popularize, and it can be used at equal lengths with the pumping tests that are often used in production. In addition to the fact that this theory can greatly reduce the test cost, it can still measure the flow and water quality parameters once.