Guizhou Branch Of The Aluminum Red Mud Karst Leakage And Prevention Research

In Guizhou areas, karst is very developed. With the development of economic construction, the karst area's engineering construction projects are getting more and more. Therefore, the karst engineering geological problems caused such as karst seepage, karst foundation of stability and so on receive people's more and more attention. At present, although domestic and foreign experts and scholars have researched a lot in karst developmental condition, cause, mechanism, type, influencing factor, karst topography landform, karst collapse and so on, and have achieved many achievements, the research of karst seepage and anti-seepage project is still weak.The article is focused on the research of red mud yard of Guizhou Branch of Chinalco, which is located nearby the axle center of Ma Jiasi anticline of proximate grade structure of Guiyang-Zunyi north and south structure belt and is a typical seal crosswise karst depression. Influenced by Baiyanguan fault and F3 fault, the karst growth is very intense. In the peak clump, it distributes fragmentarily a series of karst ditch, ponor, skylight, silo and so on which constitutes extremely complex network of groundwater seepage. The water level is heigher 120-200 meters than Changchong valley land which is over the west side of yard. From the hydrogeological point, groundwater's relationship among the yard water level, the valley land and the neighbouring valley land is excretion, showing the karst growth's convenience for this area, but bringing the red mud leakage's prevention enormous difficulty in the yard. The environment geologe investigation research indicated that the red mud yard has karst leakage question, which has obvious effct to the peripheral environment. It becomes the daily concern of the government and public. Therefore, the problem is too urgent to avoid enhancing the research and resolution.This article using relative new basic theory of karst geology and karst engineering geology analysis method and detection techniques based on field investigation, exploration and testing, that has conducted in-depth research to this red mud yard's karst and made the following key results: (1) Through researching karst developmental discipline and characteristic in the area macroscopically, I obtain that karst growth is comprehensively controlled by the factors of formation lithology, geologic structure, ground water, karst effect and so on, and different combinations of various factors form different karst phenomena.(2) It provides important scientific basis to construct this red mud yard through comprehensive investigation, engineering geology characteristic analysed and studied, karst shape characteristic elaborated, karst growth characteristic and discipline summarized and elaborated.(3) The influence has made the forecasting evaluation to the leakage based on experiment and the type, way and direction of karst leakage in this area.(4) It has new understanding to the karst basic theory. At present, theory and method used karst evaluation is nearly all based on the level cave pattern. It's very meaningful for karst investigation evaluation and karst ground treatment by systematically researching project karst in the area which will change the viewpoint that regarded simply the karst phenomena in the drilling as the caves in the past(5) I think it's practical and feasible for measure administering karst leakage, through analyzing and researching it and the rerult, and the administering result is great. Simultaneously, it also indicates that only through the synthesis method on scientifically and seriously investigation, study, analysis and summary, avoiding the disadvantage factor, making full use of the advantage factor, verifing the carbonate karst area's engineering geology and hydrogeological conditions, using the reasonable design proposal, choosing appropriate material, and adopting the feasible construction method, it could get well leakage treatmental rerult.In brief, the results have not only direct guiding significance and practical value to the later project of red mud yard of Guizhou Branch of Chinalco and other local engineering construction, but also the universal significance and the promoted value to the common karst area. Therefore, this article has important theoretical and practical significance.