人民长江Issue(7)：26-29,40,5.DOI:10.16232/j.cnki.1001-4179.2015.07.007
提高堆石坝过渡料细颗粒含量的措施
Measures of increasing fine particle content in transition material of rock-fill dams
钟权 1杨晨光 1冷振东2
作者信息
- 1. 中国电建集团成都勘测设计研究院有限公司，四川 成都610072
- 2. 武汉大学 水资源与水电工程科学国家重点实验室，湖北 武汉430072
- 折叠
摘要
Abstract
In rock-fill dams, the transition material plays a role of filtration-prevention for the cushion material, and the fine particle content is an important assessing indicator for the gradation quality of transition material. Based on the Kuz-Ram size prediction model for explosion blocks, we analyze the influential factors to the fine particle content. And on the basis of the explosion tests in mining of transition material at Changheba Hydropower Station, we summarize the main technical measures in-creasing the fine particle content. The explosion test shows that the following measures could effectively increase the fine particle content in mining process of transition material, namely adopting high detonation velocity explosive, reducing the interval space of blasting holes moderately, selecting rational charging structures and adopting rational ignition time-differences. By adopting the presented measures, we could use the blasted stones as transition material directly, saving engineering cost effectively.关键词
过渡料/细颗粒含量/爆破/堆石坝Key words
transition material/fine particle content/explosion/rock-fill dam分类
建筑与水利引用本文复制引用
钟权,杨晨光,冷振东..提高堆石坝过渡料细颗粒含量的措施[J].人民长江,2015,(7):26-29,40,5.
