The Study Of Design And Construction Technology Of Duoer Hydroelectric Power Station Main Buildings

Duoer hydroelectric power station project scale is IV and is small (I) project, the Main building of this project rank: 4 levels. This article concentrated on the analysis, the research and the summary of design and the construction technology of main building spillway and the concrete face-lab rock-fill dam of Duoer hydroelectric power station.Limited by geology and terrain, the trough of the project spillway have to design to the trough of the curve form. When current of water through curve, it is compelled Centrifugal force and trough wall disturbance and to change flows direction , so that it causes the water surface slope gap of the outer wall and Inner wall , if current of water is rapid stream , it makes impulse wave. Through 1:40 hydraulic overall model, this topic has conducted the experimental study and the theoretical analysis to fluent characteristic of Duoer hydroelectric power station spillway curve rapid stream. Through many kinds of plans build optimization, used the plan of complex curve and fan-shaped horizontal bottom-slope to solve well current of water problem of Duoer hydroelectric power station spillway. According to experimental evidence , the biggest water surface difference of Left and right frontier wall is 0. 25m in the condition of normal flood level , and it is 0. 34m in the condition of abnormal flood level. And the flow pattern of the curve has the great improvement.The concrete face-lab rock-fill dam has so many merits , for example, the security is well, the construction is convenient, the construction cost is low , that emphasized by engineering day by day. At present it has became the first choice dam of the domestic and foreign many projects. However, this kind of dam design and construction based on experience, therefore, How to calculatethe stress and the strain of the face-lab rock-fill dam is the extremely issue concerned by engineering.This article uses the finite element procedure through the level appraisal. Because the builds dam material of the rock-fill dam is non-linear ,so its stress and the strain also are non- linear. Therefore the computation has used the E~B model. It used the contact unit to., simulated between the face-lab and subsoil , and used the seam unit to simulated seam of between the face-lab and toe-lab and between the face-lab and the defend wave wall . It has carried on the two-dimensional finite element analysis in construction time and sluice , and has obtained the quite reasonable computed result, and put forward some advice according to the computed result.Duoer hydroelectric power station project position area lies the warm temperate zone, the mountain rusticity marquis characteristic is obvious, the diurnal temperature difference is big, the climate is dry. According to similar project construction experience .This paper has studied on warm controls and prevent the crack of thin face-lab, the toe-board, high toe-wall of Duoer hydroelectric power station rock-fill dam.The article carries on the comprehensive elaboration in spillway build optimization design > concrete face-lab rock-fill dam design -. face-lab construction , and so on.