Water migration phenomenon model in cracked concrete. II: Calibration

被引:11
|
作者
Oshita, H
Tanabe, T
机构
[1] Ghuo Univ, Dept Civil Engn, Bunkyo Ku, Tokyo 1128551, Japan
[2] Nagoya Univ, Dept Civil Engn, Nagoya, Aichi 46401, Japan
来源
JOURNAL OF ENGINEERING MECHANICS-ASCE | 2000年 / 126卷 / 05期
关键词
Calibration - Cements - Concrete aggregates - Cracks - Flow of water - Laminar flow - Leakage (fluid) - Mechanical permeability - Numerical analysis - Radioactive waste disposal - Reynolds number - Turbulent flow;
D O I
10.1061/(ASCE)0733-9399(2000)126:5(544)
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The material parameters to express the degree of discontinuity of hydraulic gradient in the developed model (Part I) are calibrated based on the sensible analysis of the experimental results, and then the applicability of the calibrated parameters is discussed. As a result: the material parameters are calibrated by the sensible analysis, and then its relevance can be confirmed by another experiment. Moreover, it can be seen that the normalized permeability of concrete as a nonhomogeneous material by the initial permeability (homogeneous material) can be regressed with three straight lines in the crack width axis with the logarithm. Then the intersection point at the crack width axis shows the critical width at which leakage will not occur, The intersection point at the last two straight lines shows the critical Reynolds number at which flow becomes laminar to turbulent according to the experimental result.
引用
收藏
页码:544 / 549
页数:6
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