| Owing to concrete arch dam can adequately make use of concrete material speciality of concrete dam body, it has economical characteristic by contrast with other types of dam. Concrete arch dam is used more and more widespread because of high hyper static and good security.Cracks are widespread in concrete arch dam, which are caused by temperature, or foundation, or construction, and unreasonable designing. Most of cracks are caused by multiple factors. Origins of crack in JinKeng arch dam that are discussed in this article are variety, but the direct origin is that dam body suffers sudden fall of temperature in operating period. Studying reason deeply, the cause of crack is connected with high sensitivity of Shape. These conclusions that are said in front are educed by linear and nonlinear computational methods and abundant numerical computations. This work is a process that discusses a computational method of security re-check in arch dam.The correlation of crack and body type of JinKeng arch dam makes representative, lots of projects having similar instance. Some questions of shape optimum designing in arch dam discussed and experiences that gained from practical works about shape designing in arch dam are talked about in this article farther.At last, two examples of arch dams that are designed by author are listed, one is wide valley middle dam. The other is narrow valley high dam, these engineering all make representative. |
PDF Full Text Request