Research On The Erosion Mechanism Of Water Conservancy's Concrete Building And The Repair Technology In The High-lift Step Pump Station

According to the situation of the anti-erosion to the high-lift multi-stage pumping station hydrotechnics concrete structure at the west of china, we mainly research the mechanism of deterioration to concrete building and advanced the repair technology. that apply to this engineering.The corrosion mechanism of large-scale to high-lift splashes the project concrete building have been analysised, and researched the erosion medium. It's scientific to assessed the concrete anti-erosion quality of the erosion building and estimate the surplus life. According to the research of large-scale to high-lift splashes the project concrete building, educe the technique measure that increase the concrete building self-anti to the erode the function; Exploit advanced and reasonable anti-eroded preventive technique and rehabbed technique of eroded structure and has yielded some innovation results..1,In study process, the erosion problem of the serious concrete building in JingDian (GanSu province) and on the poverty reducing and pumping water irrigation project in ning xia province, through the locate investigation and analysis of experiments, A deep research of the Erosion Mechanism and the Repair Technique about the concrete building of High-lifts Water Irrigation Project to the our country western region.2,The research find irrigate area mainly erosion medium of the concrete building is sulfate,potassium chloride and natrium Drainage Water for Irrigation.Spot corrade breakdown model is dry and wet alternative area.Research math model of weather concrete building intension lose and corrade depth,which processed forecast and predict of water build's use-life.3,Through research the erosive model and mainly erosions of the water work building,we advance the repairerosion technique measure which adoption the wreath oxygen to mix with the sand syrup. To set up the structure thing to put forward a compound to increase to anticipate to improve the internal microstructural of concrete lately, Key Measure for Enhancement of Anti-erosion Performance of structure;4,Advance adopt epoxy coal tar coating the erosion lies the quality to separate the material stops the erosion the contact face of prevention technique; Go up to the underground water level and the location that the concrete building intensively arrange:for instance, gather canal holeof pump station, Put forward to adopt the automatic well to order to drain to gather together the irrigation to return to method of return the water with blind ditch, which arrestment with the rising of groundwater water level and the backlog of the erode ion.Through the research ,on the one hand we can scientifically assessed the concrete anti-erosion quality of the erosion building, and offer technology for preventing erosion. On the other hand ,we can provide the theories to anti-eroded design of the the same irrigated area of water project concrete building. So the research has realistic meaning which can prolong life of served structure, and academic value of anti-eroded design to building. And the same time , the research has the signification to anti- erosion of the national same irrigated area water project concrete building.