马关某渣库场区水文地质特征分析

马关县地处云贵高原南部,区内岩溶地貌发育,以峰林、岩溶洼地、谷地为主。为探讨拟建项目场区的水文地质特征,初步认识拟建工程建筑物与地下水之间的相互影响程度。对研究区开展全面的水文地质条件调查,并进行水文地质钻探、抽水试验、注水试验、包气带饱和渗透等现场试验工作。结合前人研究成果,综合得出研究区内地下水类型主要为松散岩类孔隙水、碎屑岩裂隙水和碳酸盐岩类岩溶裂隙水;区内地下水动态及补、径、排条件稳定,对工程建筑物的稳定性影响较小;出露地层的渗透性为弱-中等,且包气带具有一定厚度,渗透性低,整体防污性能较好。

ANALYSIS OF HYDROGEOLOGICAL CHARACTERISTICS OF A SLAG STORAGE AREA IN MAGUAN

Maguan County is located in the south of Yunnan Guizhou Plateau,where karst landform is developed,mainly including peak forest,karst depression and valley.In order to explore the hydrogeological characteristics of the proposed project site,the interaction degree between the proposed project building and groundwater is preliminarily recognized.Carry out a comprehensive investigation of hydrogeological conditions in the study area,and carry out hydrogeological drilling,pumping test,water injection test,saturated permeability of the vadose zone and other field tests.Combined with the previous research results,it is concluded that the groundwater types in the study area are mainly loose rock pore water,clastic rock fissure water and carbonate rock karst fissure water;the groundwater dynamics,supply,runoff and discharge conditions in the area are stable,which have little impact on the stability of the engineering buildings;the permeability of the exposed stratum is weak to medium,and the aeration zone has a certain thickness and low permeability,The overall antifouling performance is good.