New Technology Research Of Concrete Faced Rockfill Damconstruction In Bedding Course Area

Wall squeezing of Concrete faced rockfill dam (CFRD) is a new technique, which had come into being not long ago. Compared with the traditional technic of CFRD bedding course construction, there are lots of prominent advantages. Although there were some utilized examples, it can't meet the need of construction application, as there are only several advertising introductions. The earliest applied example of this technique is ITA dam in Brazil. As the water reserving went on, the maximum seepage was up to 1300litre per second, such phenomenon resulted in people's skeptic of the technique's availability. To research the technology of squashed wall systematically is senseful in engineering and worthy in economy for CFRD design and construction guidance.By a long period of theoretic and practical researching, I have done a lot of particular work in technique of squashed wall, relative construction equipments, concrete material of squashed wall, technology of construction, technological process, costs of construction and the influence of stress and deformation of concrete slab to the capacity of dam, then I obtain efficiency fruit and cognition primarily as follow:By independence design and try execution, outdoors experiments and debugging of equipments capacity, I have finished the fixed facility design sample of sidewall squeezing machine, managed to make capacity equivalent machine, set the main technology parameters. Basing on this, I developed sample of sidewall squeezing machine into state patented sidewall squeezing products.By engineering tryout and indoor experiments, I put forward a set of available mixing parameters for wall squeezing and reasonable cut surface pattern.By theoretical computing of numerical analogy in construction process, I put forward some persuadable comments on primary period stability of squashed wall construction, and the influence of wall squeezing to stress and deformation of concrete slab.By searching, summarizing and improving as practical project constructing, I put forward clear conception of working principle of squeezing machine, specifications of utilizing and maintenance of squeezing machine.By searching, summarizing and improving as concrete applying, I put forward the detail in bedding course area construction of wall squeezing, relative technics process and economic analysis proof of construction costs.