摘要
为研究单株植被对河道水力特性的影响,在分析河道水力特性研究方法有关文献资料的基础上,设计并进行了相关的水槽试验.研究表明,水流流量越大,同一株植被所受的水流阻力越大;流量相同时,阻力随着植被刚度的增大先增大后保持平稳;单株植被在同一流量下,作为挺水植被时比作为淹没植被时对水力特性的影响大.但总体说来,单株植被对水流产生的水力特性改变较小,经验公式的建立还需要进一步的试验才能得出.
In order to research the hydraulic characteristics influence from individual plant to channel, based on the analysis of relevant literatures on the researching methods of the hydraulic characteristics, relevant flume experiments were designed and conducted. The research indicates that the resistance rises with flow increasement. In same flow, the resistance rises and then tends to be constant with the increasement of plant rigidity; emerged plant has more influence on flow than aquatic vegetation. The hydraulic characteristics influence from individual plant is small, further experiments are needed to develop the quantitative relation.
出处
《宁夏工程技术》
CAS
2014年第1期41-44,共4页
Ningxia Engineering Technology
基金
河海大学2012创新训练计划(201205XCX025)
关键词
水生植被
单株植被
流量
植被刚度
水头损失
aquatic vegetation
individual plant
flow
plant rigidity
head loss
