Hydraulic piping—theoretical and experimental findings
Hydraulic piping—theoretical and experimental findings
复制标题
液压管道——理论和实验结果
DOI：
10.1139/t77-008
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
M. Kälin
中科院分区：
文献类型：
--
作者：
M. Kälin
升压管道的安全系数被认为是一个最低标准（可能在1929年由Baumgart和Davidenkoff提出，当然在1943年由Terzaghi提出）。准则的最小条件常常被省略。本文给出了该判据与第一性原理的关系，并给出了分段均匀土和线性非均匀土的解。理论和实验证据表明，忽略最小条件会产生安全系数的上界估计，相当于假设均匀性。得出的结论是，一般情况下，均匀性假设明显偏向不安全的一面。
The safety factor for piping by heave was conceived as a minimum criterion (probably in 1929 by Baumgart and Davidenkoff, certainly in 1943 by Terzaghi). The minimum condition of the criterion is frequently omitted. This paper gives the relation of the criterion to first principles and indicates solutions for the piece-wise homogeneous and linear inhomogeneous soil. Theoretical and experimental evidence shows that the omission of the minimum condition yields upper bound estimates for the safety factor and is equivalent to assuming homogeneity. It is concluded that in general the assumption of homogeneity is significantly on the unsafe side.