山东峄城盆地岩溶发育的基本规律及与水源地形成的关系

Basic Rule of Karstic Development and Its Relation with Water Source in Yicheng Basin of Shandong Province

摘要:

山东省枣庄市峄城水源地是个典型的北方埋藏型岩溶水水源地。峄城盆地出露的岩溶地貌有干谷、溶洞、岩溶准平原、溶蚀裂隙、溶沟、溶槽、溶痕等 ,地下岩溶形态主要为溶洞、溶蚀裂隙和溶孔 ,岩溶的发育具有层控性、水平分带和垂直分带等特点和规律。该盆地岩溶水系统的含水介质为寒武系、奥陶系的灰岩、白云岩 ,以溶隙、溶孔为主加少量小型溶洞构成了一个统一的互相连通的地下水空隙网络系统 ,为地下水的运移、储存提供了通道和空间。岩溶水流在此空隙网络系统内具有渗流性质 ,流态以层流为主 ,形成一个基本统一的单斜扇形水动力网 ,并具有统一的水化学场。该盆地分间接补给、直接补给、汇集排泄和汇集四个输导功能区。并在汇集区形成了具有供水意义的大型岩溶水水源地

Abstract:

Yicheng basin is a hidden Karst basin in south of Shandong province. Various shapes of Karst distribute over the basin and develope under the surface. In the paper, principles of the distribution and development of the Karst is further analyzed and the relationship between the water source field and the principles also discussed.