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Research on Some Factors on Working Performance of High Arch Dam

Author: LiuYi
Tutor: ZhangGuoXin
School: China Water Conservancy and Hydropower Research
Course: Hydraulic structures
Keywords: Real work of high arch dam behavior Summer closure grouting Installments pouring Dam heel stress Causes of Cracks
CLC: TV642.4
Type: PhD thesis
Year: 2007
Downloads: 328
Quote: 1
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The state of the real work of the high arch is a very ambitious topics at the forefront of the field of hydraulic structures . This report combined with the the Laxiwa engineering and Little Bay project specific issues , using the finite element simulation method to carry out the alpine region of high arch dam closure grouting the real stress state in summer , staging pouring , Arch and impoundment Gaogong dam work state of the studies of high arch dams stress factors and the real stress of the dam early concrete and cracks causes based on observed data . The main contents include : 1) the state of the real work of the high arch . 2) developing a finite element direct reaction method , and applied to the Gravity Dam Stability Analysis and arch the arch abutment reaction force , this approach in the process of solving internal forces can effectively reduce the finite element calculation grid and method dependence. 3) using the finite element simulation method to study the impact of the alpine region in summer closure grouting the real stress state of high arch dam , that the summer closure grouting will cause the surface of high-stress problems, analyze the causes of the high surface stresses , and put forward for of engineering measures . 4 ) studied the impact of grid size , water pressure reservoir basin upstream cracks and other factors on the dam heel stress and internal force . 5) installments pouring , staging Arch stage impoundment of high arch dam stress distribution , the dam heel stress and internal force , foundation anti - force . 6) based on observed data , using the finite element simulation method feedback follow-up study of early small arch concrete true stress and the crack causes the problem , discuss the basis of temperature difference between day and night temperature , consolidation grouting elevation , foundation unloading elevation and other factors cracks , and discusses the high arch dam early concrete stress analysis should consider many factors . Included in this report I post-doctoral research during most of the research work to another part of the work due to poor correlation with the subject , only a brief part of the postdoctoral period in charge of and participation in scientific research work \

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CLC: > Industrial Technology > Hydraulic Engineering > Water control,hydraulic structures > Dams > Concrete dam > Arch dam
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