摘要
为研究不同破坏率条件下排水管道和河道排涝的关系,以宿迁闸站为代表站,采用年最大值法对多年降雨数据进行了选样分析,利用适线法绘制频率曲线,得出了破坏频率曲线。结果表明:管道排水设计重现期相同,破坏率随着河道排涝设计雨量减小而增大;相同降雨历时、破坏率,管道排水设计重现期随着河道排涝设计雨量的增大而增大,故认为要使管道排水与河道排涝衔接顺利,排水不发生顶托破坏,应要求河道排水设计标准更高。
In this study,the relationship between drainage pipelines and river drainage under different damage rates was studied.Taking Suqian Sluice Station as a representative station,the annual maximum value method was used to select and analyze the multi-year rainfall data,and the frequency curve was drawn by the fitting line method,and the failure frequency curve was finally obtained.Finally,it is concluded that the design return period of pipeline drainage is the same,and the damage rate increases with the decrease of the design rainfall of river drainage.With the same rainfall duration and failure rate,the design recurrence period of pipeline drainage increases with the increase of designed rainfall of river drainage.It is believed that higher design standards of river drainage are often required to ensure smooth connection between pipeline drainage and river drainage and to avoid roof support damage of drainage.
作者
白丹
Bai Dan(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200434,China)
出处
《绿色科技》
2022年第12期273-276,共4页
Journal of Green Science and Technology
基金
中国长江三峡集团公司科研项目(编号:2019HJ(11)-065(KB))。
关键词
破坏率
管道排水
河道排涝
damage rate
pipeline drainage
river drainage
