Observations Analysis And Safety Evaluation Of Concrete Face Rock-fill Dam

CFRD is rock-fill for the supporting structure, and in the upper reaches of the surface of the concrete slab installed impervious structure of a rock-fill dam. Compared with the traditional earth dam, with less investment, safe, reliable and easy to construction period is short, adaptability, etc..And after years of scientific research and construction practice their technology has become mature and is now very competitive and the future of application-Pa. However, the dams were still at the design stage experience, no mature design theory, has been largely based on the experience together analogy works to be carried out. Based on in-depth data analysis and evaluation to determine whether abnormal observation facilities reliable, Recognition dam operation and promptly found the abnormal reaction of dam and hidden dangers. Only in this way can we maximize the benefits of monitoring data, to truly play the role of monitoring the safety of the dam design, construction, safe operation of services. This study focused on CFRD, the work done are:(1) Analysis of CFRD faced rock-fill and the deformation mechanism and the factors comprehensively expounded on the rock face and the deformation characteristics.(2) According CFRD deformation characteristics and the settlement mechanism, rock-fill dam with the process of settlement clear phased period and the settlement of differences in laws. This paper used to be sub-legal, using two different regression curve fitting rock-fill dam construction period Operation of two stages of the settlement, the establishment of the corresponding prediction models.(3) Using the comparative method, the mapping method, eigenvalue statistics and other methods, the White River CFRD the measured data analyzed. Drawing of the long process of physical lines, curves, evaluation of the actual operation rock-fill dam behavior. Settlement statistical model used for the simulation analysis, validation of the model in the White River CFRD Applicability.(4) Construction of the White River CFRD storage process simulation and finite element analysis. Analysis of dam construction and water at different stages of deformation, and a comparative analysis of the measured results of the observation.