水资源与水工程学报2023，Vol.34Issue(6)：147-155,163,10.DOI:10.11705/j.issn.1672-643X.2023.06.18
工程尺度堆石混凝土抗压性能试验研究
Experimental study on compressive properties of rock-filled concrete at engineering scale
摘要
Abstract
As the height of the constructed rock-filled concrete(RFC)dam continues to increase,higher requirements are put forward for the performance indicators of the dam.To understand the actual compres-sive behavior of RFC dams,indoor laboratory tests on the compressive performance of RFC at engineering scale(side length of 900 mm or above)were carried out.In this paper,cubic specimens of self-compacting concrete(SCC)and RFC with a side length of 900 mm were made,and the laboratory test method of com-pressive properties of RFC at engineering scale was explored.The results show that it is feasible to make cu-bic specimens with a side length of 900 mm using the mould made of steel plate with a thickness of 10 mm.Both SCC and RFC cubic specimens showed"X"-shaped failure pattern,and there were three types of fail-ure in RFC cubes,namely the failure of SCC,the failure of SCC and rockfill interface,and the failure of rockfill.The compressive strength of RFC and SCC cubic specimens with a side length of 900 mm was 76%and 67%of that of standard cubic specimens respectively;however,that of RFC cubic specimens was 12.50%higher than that of SCC cubic specimens.This indoor test method not only enriched the test data of RFC at engineering scale,but also provided a reference for subsequent mechanical tests as well as the de-sign and construction of rock-filled concrete dams.关键词
工程尺度/自密实混凝土/堆石混凝土/抗压性能/室内试验Key words
engineering scale/self-compacting concrete(SCC)/rock-filled concrete(RFC)/compressive property/laboratory test分类
建筑与水利引用本文复制引用
罗滔,颜景,张天祺,金峰,周虎,周琦莙..工程尺度堆石混凝土抗压性能试验研究[J].水资源与水工程学报,2023,34(6):147-155,163,10.基金项目
国家自然科学基金青年项目(51909223) （51909223）
国家自然科学基金重点项目(52039005) （52039005）
陕西省青年科技新星项目(2022KJXX-85) （2022KJXX-85）
清华大学水圈科学与水利工程全国重点实验室开放基金项目(sklhse-2023-C-04) （sklhse-2023-C-04）
