Shaanxi Institute of Geo-Environment Monitoring

通过对榆神府矿区烧变岩、烧变岩含水层的调查,论述了烧变岩分布,含水层储水结构及补、径、排条件。烧变岩地下水接受大气降水和萨拉乌苏组地下水的越流补给,以下降泉形式排泄。烧变岩含水层特点是分布面积和含水层厚度都较小,但富水性强,钻孔抽水试验最大单位涌水量88.67L/(s·m),渗透系数最大可达1 631.30 m/d。煤炭开采前,区内有烧变岩泉405处,其中流量小于1 L/s的325处,总流量59.458 L/s;流量1~10 L/s的64处,总流量142.115 L/s;流量大于10 L/s的16处,总流量564.610 L/s;这些泉多分布于沟谷沿岸,部分烧变岩泉受采煤影响流量衰减或干涸。烧变岩含水层地下水的水质多为HCO3—Ca·Mg或HCO3—Ca型,矿化度最大0.299 g/L,水质良好,是榆神府矿区宝贵的生态水源。

with the investigation on the burnt rock and burnt rock aquifer in 'ushenfu Mlining Area,the paper stated the burnt rock ditribution and the water storagestructure of the aquifr as well as the r fling runof nd drainage condtions.The underground water of bunt rock wouldreceive the atmospheric preciptation and thecross fiow refiling of the underground water from Salawasu Formation and would drain with the descending springs. The aquiter feaures of the bunt ck would be asmall distribufion area and the thin thickness ofthe aquifer,but the water abundance was strong.The maximun untf wate infow of a hole pumping test as 8.67L/(sm) and the permeablity co.ficient could be 1 631.30 m / d in maxinum. Before the coal developed.in Yvushenf uMining Ae.there were 4 5 bunmtrck sprin:s.Ameng hem,there were 325 spings with a water fowlss than 1 Li s for each spring and the total water fow was 59.458 L/ s.There were b4 sorings with a water fiow of 1 ~ 1OL/ s and the total water fiow was 142.115L/ . There were 16 spings with a water fovw igher than 10 L / s.the total water fiow was 564.610L/ s,those springs mosty located along the vall ys and banks and some burnt rock spring affected by the coal mining were to be dry in water fow ordry: The waer qualityof the undergroundwater in the burnt rock aquifer mostly was HCO3—Ca Mg or HCO3—Ca wate,the mineralization degree was 0.2s giL in maximun.The water quality was exceent and would be the valuable ecologic water resources in Yushenfu Mine Area.

国家重点基础研究发展计划(973计划)资助项目(2013CB227901)；陕西省科学技术推广计划资助项目(2011TG-01)；陕西省公益性地质调查资助项目(2013020101)；