贵州修文县陶家龙潭水源地水文地质特征

为了研究贵州省岩溶区水源地水文地质特征,以修文县陶家龙潭水源地为研究对象,结合水文地质测绘等调查方法及岩溶地下水的发育规律,得到其地质概况及岩溶发育影响因素、边界条件等特征。划分其隔水边界条件的依据主要为:隔水边界阻水性质、边界沿线岩溶现象发育情况、地下水出露点,并以地形分水岭为依据研究其补给边界。研究表明:水源地发育区域具有独立的水文地质单元的特征;陶家龙潭水文地质单元的发育主要受岩性和裂隙构造的影响;排泄形式主要为岩溶泉和人工开采,并最终排泄于地表河流;水源地地下水水化学类型为HCO3·SO4—Ca·Mg水,适合作为饮用水源。

Hydrogeological Characteristics of Taojialongtan Water Source Area in Xiuwen County of Guizhou

In order to study the hydrogeological characteristics of water source in the karst area of Guizhou Province , we take Taojialongtan water source area in Xiuwen country as study object .In association with investigation methods
like hydrological surveying and according to the development law of karst groundwater , we obtain the characteristics such as general geological situation , factors affecting karst development , and boundary conditions .We divide im-pervious boundary conditions according to three aspects:water blocking property of the boundary , development sit-uation of karst along the boundary , and the groundwater emergence location .Moreover on this basis , we study the recharge boundary .Results show that the development area of water source has the characteristics of an independent hydrogeological unit;meanwhile , the development of Taojialongtan hydrogeological unit is mainly influenced by li-thology and fissure structures;furthermore , discharges mainly takes the form of karst spring and artificial mining , which ultimately flows into the surface river;finally, the hydrochemistry type of Taojialongtan water source area is of HCO3 · SO4-Ca· Mg, suitable for drinking water source .