摘要
抛石护岸是护岸工程中一种历史悠久、使用广泛的优良型式,而且块石作为天然材料,在未来的生态护岸中也必将继续得到大量使用。以斜坡上块石的稳定粒径为主要研究对象,选取《堤防工程设计规范》推荐公式、沙漠夫改进公式和Shields准则推导公式,分别计算它们在不同水深、坡度、流速下的计算结果,比较分析其差异,并通过安全系数对各公式的计算结果进行评价,最后对《堤防工程设计规范》推荐公式的使用提出一些建议。
Among the many types of bank protection, riprap revetment is fine style which has a long history and been used in a wide range. Moreover, as a natural material, reck block will continue to be largely used in future ecological revetment. In this paper, we choose the stable size of rock block as the main object, and select the recommended formula in ＂Code for design of levee project＂, the improved Sarmov formula and the derived formula of the Shields＇ criterion, then separately calculate the results of these formulas under different water depths, slope and flow rates. Evaluating the calculation results of each formula through the safety factor, we offer some suggestions for using the recommended formula in ＂Code for design of levee proiect＂.
出处
《浙江水利科技》
2010年第4期20-22,25,共4页
Zhejiang Hydrotechnics
基金
国家自然科学基金项目(50979071)
科技部"十一五"国家科技支撑计划重大项目(2008BAJ08B14)
科技部科技基础工作专项重点项目(2007FY110300-03)
