Research On Enrichment Regularity And Development Of Groundwater In The Red Beds Of Central Yunnan

Located in southwestern margin of Yangtze Plate and close to Ailaoshan Orogenic Belt, complex geo-environment as well as drought and rainless during winters and springs, the red beds of Central Yunnan groundwater's exploration and utilization is one of the most efficient methods to resist drought and relieve the drinking water problem of man-livestock. Based on groundwater's investigation and demonstration data in the red beds of Yunnan, in addition with regional hydrogeology, this paper discusses the condition of existence, groundwater enrichment regularitys and groundwater exploit techniques.1. By geological survey and study, in addition with regional hydrogeology, this paper put forward groundwater classification of the red beds of Central Yunnan. New ideas and foundations on classification of interlayered fracture aquifer were launched. According to the differences of space combination between aquifer and aquiclude, in addition with the strong and weak of the water abundance, interlayered fracture aquifer were divided into monolayer, interbeds and interlayer. This paper aim at resolving the drinking water problem of man-livestock, give consideration to the traditional standards and difference among deep well and shallow well. Standard for water abundance was established. This standard was divided into Water yield rich, medium and poor.2. Based on main factors controlling groundwater enrichment, combined with the example, This paper described the conditions and regularity of groundwater enrichment and summarized feature synthesis of water rich block from the character of the aquifer and storage regularity, the type of groundwater-bearing structure, characteristics of catchment geomorphy. On the whole, the red beds of Central Yunnan has the following features: The kinds of groundwater are complete; The kinds of groundwater-bearing structure are various; The distribution of groundwater are limited, Widely distributed interlayered fracture aquifer and dissoluble rock; Runoff conditions of groundwater circulation were good; Exploitation and utilization has a good prospect.3.Based on analysis of salt layer lithological association, petrochemical characteristics and water enrichment void'development characteristics. This paper described the characteristics of groundwater quality, water abundance'differences. Combined with the example, it discussed the enrichment regularity of saline groundwater, and freshwater'distribution characteristics.4. With YaoZhanjie Basin as an example, research indicates that dispersed minor -caliber well were used to exploit and utilize groundwater, at the same time, using pumping test'steady discharge as allowable withdrawal, which meets both the requirements of the drinking water problem of man-livestock as well as groundwater resources assured.5. Based on the research of groundwater exploration and utilization in the red beds of Central Yunnan, this paper summarized effective alternative,equipment disposition for groundwater exploration and utilization, and give a exploring study of poor quality water treatment.The achievement of this paper has gained a better understanding of the issue of the groundwater in the red beds of Central Yunnan, which can be used for groundwater detection and utilization in this area.