四川盆地红层浅层风化带裂隙水及其合理开发利用

四川盆地红层地下水为基岩浅层裂隙水,赋存于红层丘陵区的宽谷风化带中。宽谷为红层地下水的含水单元。红层地下水富集部位在宽谷的排泄区,其地貌标志是宽谷下游较窄峡口的上部,该处有不同程度的沼泽化、盐渍化。红层风化带含水介质的形成经历了中、新生代水盆的沉积作用、成岩作用和表生地质作用等漫长复杂的物理化学过程。红层干旱地区的地下水开发应采用抽水和屯水相结合的方案。

Fissure Water and Its Rational Use in Shallow Weathering Zone of Red Beds in the Sichuan Basin

Groundwater in redbeds in the Sichuan basin is shallow fissure water in the bedrock and is confined to weathering zone in broad valleys between hills.Discharge area of the groundwater is characterized by swamping and salinization to varying degrees.The formation of the aquifer underwent long-term physical and chemical process during sedimentation,diagenesis and supergenesis in the Meso-Cenozoic.Exploitation of the groundwater in redbeds should adopt scheme in combination of pumping with storing.