摘要
从北京市交通干线13处有代表性地点的雨水口及雨水井中取得砂样,研究其粒径分布、真密度及沉降速度等沉降性能,采用标准筛分法分析其粒径分布,使用浸液法分析其真密度,使用显微设想法分析其沉降速度,获得交通干线雨水中砂粒的沉降性能基础数据,为后续雨水管道用沉砂池的设计提供基本依据。
The subject described the process of treating the sand at rainwater mouth of Beijing city traffic trunk.It described the study of the sand＇s sedimentation performance such as particle size distribution,density and settling velocity. It used standard sieve method to analyze the particle size distribution,used immersion method to analyze the true density,used the microscopic design idea to analyze the sedimentation velocity. It helped to obtain the essential data of the particles＇ settling performance and to bedding the design of grit chamber in rainwater pipe.
出处
《科学技术与工程》
北大核心
2016年第18期266-271,共6页
Science Technology and Engineering
关键词
粒径分布
真密度
沉降速度
沉降性能
particle size distribution
density
settling velocity
settling performance
