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| 碾压混凝土拱坝双向相邻诱导缝断裂试验与分析 | |
| 引用本文： | 黄志强,王学志,沈新普,宋玉普. 碾压混凝土拱坝双向相邻诱导缝断裂试验与分析[J]. 水利学报, 2010, 41(2) |
| 作者姓名： | 黄志强 王学志 沈新普 宋玉普 |
| 作者单位： | 1. 沈阳工业大学建筑工程学院,辽宁,沈阳,110024;大连理工大学海洋与近海工程国家重点实验室,辽宁,大连,116024 2. 辽宁工业大学土木工程系,辽宁,锦州,121001 3. 沈阳工业大学建筑工程学院,辽宁,沈阳,110024 4. 大连理工大学海洋与近海工程国家重点实验室,辽宁,大连,116024 |
| 基金项目： | 碾压混凝土坝诱导缝断面等效强度研究，高碾压混凝土坝诱导缝的等效强度及优化布置研究，碾压混凝土层面水力破坏过程实验及数值分析 |
| 摘 要： | 针对碾压混凝土拱坝诱导缝双向相邻布置结构的力学问题,进行了不同削弱度的碾压混凝土试件轴拉试验。根据试验结果,考虑双向相邻诱导缝的影响,得到了用于诱导缝断裂分析的双参数等效强度的修正系数。对沙牌碾压混凝土拱坝的诱导缝双向相邻布置结构进行了计算分析,计算结果反映了诱导缝的双向相邻布置对其等效强度的影响,说明坝体中诱导缝的双向相邻布置在温度应力场的作用下更容易开裂。 |
| 关 键 词： | 碾压混凝土拱坝 双向相邻诱导缝 双参数断裂理论 应力强度因子 等效强度 |
Experiment and analysis on fracture of bilateral adjacent induced joints in RCC Arch Dam |
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| HUANG Zhi-qiang. Experiment and analysis on fracture of bilateral adjacent induced joints in RCC Arch Dam[J]. Journal of Hydraulic Engineering, 2010, 41(2) | |
| Authors: | HUANG Zhi-qiang |
| Abstract: | For studying the mechanical characteristics of bilateral adjacent induced joints in RCC arch dam,a series of RCC axial tension tests with different degree of weakening were carded out. According to the experimental results, considering the impact of bilateral adjacent induced joints, the correction factor of equivalent strength with double parameters, for analyzing the fracture of inducing joints, were obtained.The relative equivalent strength of bilateral adjacent induced joints structure of Shapai RCC arch dam were calculated, the result reflected the impact of bilateral adjacent induced joints on strength. The result also explained that the crack of bilateral adjacent induced joints was more easily under the action of temperature stress. |
| Keywords: | roller compacted concrete(RCC)arch dam bilateral adjacent induced joints double parameter fracture theory stress intensity factor(SIF) equivalent strength |
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