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代家地处陕西渭北乾县、礼泉黄土台塬的西南隅。西临漆木河、南接渭河三级阶地,面积51平方公里。本区农田灌溉以地表水为主,地下水为辅,总灌水量仍不能满足需水要求。目前地下水开采强度较低,水位多年呈持续上升状态,表明地下水尚有扩采前景。为制订合理开采方案,采用有限元法评价承压水开采资源,通过试算,验证、预报实际效果较好,现作以下简介。
On behalf of the home is located in Shaanxi Weibei dry counties, Liquan Taiwan Laogen plateau southwest corner. Wood lacquer west, Weihe River south terraces, an area of 51 square kilometers. The main farmland irrigation in this area is surface water, supplemented by groundwater, and the total irrigation capacity still can not meet the water demand. At present, the strength of groundwater exploitation is relatively low, and the water level has been rising continuously for many years, indicating that there is still a prospect of expansion of groundwater. In order to formulate a reasonable exploitation plan, finite element method is used to evaluate the resources of confined water mining. The actual results are better through trial calculation, verification and forecasting. The following introduction is made as follows.