透水丁坝工程设计参数的合理选择

Rational selection of the designing parameter for the permeable groin engineering

自20世纪70年代各地河务部门开始逐步试用以来,到目前透水丁坝在全国大部分河道或航道治理中都有所应用,成为一种极具发展前景的河工建筑物。本文以钢筋混凝土透水桩坝为例,通过参考实际工程经验并结合室内模型试验,对目前新型透水丁坝工程规划时透水率的选择进行了初步研究,并对透水桩坝设计方法的进展作了系统的评述,针对透水桩坝的结构特点,对设计中的关键参数的选取作了一般性的推荐,可供应用透水丁坝进行河道或航道治理时参考。同时,对目前透水丁坝在整体设计中存在的一些亟需解决的问题进行了探讨。

Since 70＇s in 20 century, some river affair bureaus started to try out gradually, the permeable groin have been applied in most of national river regulation and navigation project currently, and became a water course structure which had well-known foreground of development. This paper was taken a permeable spur of reinforced concrete as an example, by generalized the actual engineering experiences and incorporated with the model experiment, carried out the first step research on choice of permeable rate which was a part of the new type permeable groin project planning, and systematically explained the current progress of designing permeable groin, pointed to the structured characteristics of permeable groin, made the general recommendation to selecting the key design parameters, which can be supplied the reference to use permeable groin for river regulation and navigation project. At the same time, the writer discussed some key problems which still not be solved in design of permeable groin.