Karst Aquifer Permeability Tensor 3d Applications

This article according to the Baoshan area surface karst and the depth portion fracture's computation statistics, summarized the Permeability tensor each principal permeability change regularity.To analyse the factor that can control the change of seepage tensor, and contrast room permeability test's result with theoretical calculation value, then, it can inferre the depth portion tensor's three dimensional computation equation.The article research results apply in the production practice area, it must surpass adjusts the senate to gain the Permeability tensor method, and it save the traditional experiment expense, has remarkable economical effect.In the karst aquifer permeability controlling factor research area, this article think the permeability tensor's the aeolotropic degree and the faulted structure has the direct relations. When the karst water-bearing stratum permeability receives the master control break's influention is small, in that time,the aeolotropic degree is highest; On the contrary, when the influention that master control break to karst water-bearing stratum permeability is bigger, its aeolotropic degree will change to low degree, and gradually develop to the isotropic medium direction; Moreover in the karst water-bearing stratum, the ground water excretion area's permeability is best.In the research aspect of Permeability tensor along with the rule that related to the burying depth change, the research discovery depth portion seeps the tensor and does not have the rule which reduces along with the burying depth enlarge, it different with the traditional concept; And discoverery the ground water saves groudwater's change in the karst aquifer according to the stratification, and it has the close relationship with the region geostructure.The reseach results used in the baoshan xiyi lead-zinc mine's wells up the water volume forecast model and AnNing Longshan ore's draining water unwater quantity forecast model, it will disduss the theory's serviceability in different structure category and in the different stratum。Looking from the actual project mining situation, this method can enhance the precision of model, and it will have excellent actual effect.