胶凝堆石料强度和弹性模量随龄期变化规律研究

李 娜; 张 斌; 何鲜峰; 高玉琴

doi:10.3969/j.issn.1001-5485.2014.04.0182014, 31(04):85-88

PDF(1127 KB)

长江科学院院报 ›› 2014, Vol. 31 ›› Issue (4) : 85-88. DOI: 10.3969/j.issn.1001-5485.2014.04.0182014, 31(04):85-88

水工结构与材料

胶凝堆石料强度和弹性模量随龄期变化规律研究

李娜^{1, 2}, 张斌³, 何鲜峰^{1, 2}, 高玉琴^{1, 2}

作者信息 +

Variation of Compressive Strength and Elastic Modulus ofCSG Material with Age

LI Na^{1, 2}, ZHANG Bin³, HE Xian-feng^{1, 2}, GAO Yu-qin^{1, 2}

Author information +

文章历史 +

摘要

在胶凝堆石料单轴抗压试验基础上, 分析了胶凝堆石料抗压强度和弹性模量随龄期的发展规律, 并通过试验数据回归分析, 得出胶凝堆石料强度和弹性模量与龄期之间的相关关系。研究结果表明①胶凝堆石料抗压强度随龄期的增长而增长;②胶凝堆石料弹性模量低于一般混凝土, 且随龄期的增加而不断提高, 但在早期(14 d内)增长较快, 之后以接近斜线方式缓慢增长。该成果可为胶凝堆石料的工程(胶凝堆石坝)应用及技术设计提供参考依据。

Abstract

The variations of cemented sand and gravel(CSG) material’s compressive strength and elastic modulus against age were researched through uniaxial compression tests. The relations respectively between age and compressive strength, age and elastic modulus were obtained by regression analysis on the test data. Results showed that the compressive strength and elastic modulus of CSG material increased along with age the elastic modulus was smaller than that of ordinary concrete, and increased rapidly in the early stage(in first 14 days) before the growth slowed down. This research could be a reference for the engineering application and technical design of CSG material.

导出引用

李娜, 张斌, 何鲜峰, 高玉琴. 胶凝堆石料强度和弹性模量随龄期变化规律研究[J]. 长江科学院院报. 2014, 31(4): 85-88 https://doi.org/10.3969/j.issn.1001-5485.2014.04.0182014, 31(04):85-88

LI Na, ZHANG Bin, HE Xian-feng, GAO Yu-qin. Variation of Compressive Strength and Elastic Modulus ofCSG Material with Age[J]. Journal of Changjiang River Scientific Research Institute. 2014, 31(4): 85-88 https://doi.org/10.3969/j.issn.1001-5485.2014.04.0182014, 31(04):85-88

中图分类号： TV41

参考文献

[1] BATMAZ S. Cindere Dam - 107m High Roller Compacted Hardfill Dam (RCHD) in Turkey[C]∥Proceedings of the 4th International Symposium on Roller Compacted Concrete Dams. Madrid, Spain, November 17-19, 2003: 121-126.
[2] GURDIL A F, BATMAZ S. Structural Design of Cindere Dam[C]∥Proceedings of the 4th International Symposium on Roller Compacted Concrete Dams. Madrid, Spain, November 17-19, 2003: 439-446.
[3] 唐新军, 陆述远.胶结堆石料的力学性能初探[J]. 武汉水利电力大学学报, 1997, 30(6):15-18. (TANG Xin-jun, LU Shu-yuan. Preliminary Research on Mechanical Behaviors of Cemented Rockfill Material[J]. Journal of Wuhan University of Hydraulic and Electric Engineering, 1997, 30(6):15-18. (in Chinese))
[4] 陆述远, 唐新军.一种新坝型—面板胶结堆石坝简介[J]. 长江科学院院报, 1998, 15(2):54-56. (LU Shu-yuan, TANG Xin-jun. Brief Introduction to a New Type of Dam Called Face Plate Cementing Rockfill Dam[J]. Journal of Yangtze River Scientific Research Institute, 1998, 15(2):54-56. (in Chinese))
[5] 李永新, 何蕴龙, 乐治济.胶结砂砾石坝应力与稳定有限元分析[J]. 中国农村水利水电, 2005, (7):35-38. (LI Yong-xin, HE Yun-long, LE Zhi-ji. Analysis of the Stress and Finite Element Stability for the Cemented Sand & Gravel Dam[J]. China Rural Water and Hydropower, 2005, (7):35-38. (in Chinese))
[6] 杨首龙.CSG坝筑坝材料特性与抗荷载能力研究[J]. 土木工程学报, 2007, 40(2):97-103. (YANG Shou-long. Characteristics and Load Carrying Capacity of CSG Dam Construction Materials[J]. China Civil Engineering Journal, 2007, 40(2):97-103. (in Chinese))
[7] 何蕴龙, 彭云枫, 熊堃.Hardfill坝筑坝材料工程特性分析[J].水利与建筑工程学报, 2007, 5(4):1-6. (HE Yun-long, PENG Yun-feng, XIONG Kun. Analysis on Material Property of Hardfill Dam[J]. Journal of Water Resources and Architectural Engineering, 2007, 5(4):1-6. (in Chinese))
[8] 曾力, 李建成, 何蕴龙. Hardfill坝的发展现状综述[J]. 人民长江, 2010, 41(1):38-41. (ZENG Li, LI Jian-cheng, HE Yun-long. Summary of the Present Development of Hardfill Dam[J]. Yangtze River, 2010, 41(1):38-41. (in Chinese))
[9] SL 237—1999, 土工试验规程[S]. 北京:中国水利水电出版社, 1999. (SL 237—1999, Specification of Soil Test[S]. Beijing: China Water Power Press, 1999. (in Chinese))
[10]SL 352—2006, 水工混凝土试验规程[S]. 北京:中国水利水电出版社, 2006. (SL 352—2006, Specification of Hydraulic Concrete Test[S]. Beijing: China Water Power Press, 2006. (in Chinese))
[11]GB/T 50081—2002, 普通混凝土力学性能试验方法标准[S]. 北京:中国建筑工业出版社, 2003. (GB/T 50081—2002, Standard for Test Method of Mechanical Properties[S]. Beijing: China Architecture & Building Press, 2003. (in Chinese)).[12]石妍, 方坤河, 高钟伟. 碾压混凝土强度特性的研究[J].水力发电学报, 2006, 25(1):85-89. (SHI Yan, FANG Kun-he, GAO Zhong-wei. Research on Strength of Roller Compacted Concrete[J]. Journal of Hydroelectric Engineering, 2006, 25(1):85-89. (in Chinese))
[13]朱伯芳.再论混凝土弹性模量的表达式[J]. 水利学报, 1996, (3):89-91. (ZHU Bo-fang. On the Formula for Modulus of Elasticity of Concrete[J]. Journal of Hydraulic Engineering, 1996, (3):89-91. (in Chinese))
[14]吴梦喜, 杜斌, 姚元成, 等. 筑坝硬填料三轴试验及本构模型研究[J].岩土力学, 2011, 32(8):2241-2250. (WU Meng-xi, DU Bin, YAO Yuan-cheng, et al. Triaxial Tests and a New Constitutive Model of Hardfill Material[J]. Rock and Soil Mechanics, 2011, 32(8):2241-2250. (in Chinese))