透水砖堵塞机理与清洗效果试验研究  

Experimental research on plugging mechanism and cleaning effect of permeable brick

作　　者：刘晓明[1] 骆远洋 张超[1] 任鹏鹏 LIU Xiaoming;LUO Yuanyang;ZHANG Chao;RENG Pengpeng(College of Civil Engineering, Hunan University, Changsha 410082, China)

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《中国科技论文》2022年第6期647-652,680,共7页China Sciencepaper

基　　金：国家重点研发计划项目(2019YFC1904705)。

摘　　要：为了探究自然环境中不同土类对透水砖的堵塞机理及不同堵塞机理下透水砖的清洗效果,首先分析不同来源堵塞土体的特性,制备其悬浊液对透水砖进行堵塞试验,然后对透水砖进行清洗并测试清洗效果。结果表明,淤泥和粒径为10~75μm的石英粉最易导致透水砖堵塞,且清洗效果差;细砂虽易导致堵塞,但清洗后透水砖渗透性恢复效果显著;粉土不易导致堵塞,但堵塞后清洗效果差;10μm以下石英粉不易导致堵塞,且易清洗。结合各种来源土体被搬运到透水铺装场地的方式,提出了透水铺装使用场地的建议。To explore the plugging mechanism of permeable brick by different soils in natural environment and the cleaning effect of permeable brick under different plugging mechanisms,firstly,the characteristics of the soil from different sources that make the permeable brick plugged were analyzed.Then,the suspension liquid of different kinds of soil was prepared for plugging permeable bricks.Finally,permeable bricks were cleaned with their cleaning effect tested.The results show that mucky clay and quartz powder with particle size of 10-75μm are the most likely to cause plugging of permeable brick,and the cleaning effect is poor.The fine sand is also prone to plugging.The permeability of permeable brick is easily revived by cleaning.Silty sand is less likely to cause plugging than fine sand.But it is harder to clean than fine sand when permeable brick is plugged.Quartz powder is less likely to cause plugging and easier to clean.Considering the way that soil of various sources is transported to the permeable pavement site,the suggestion of using the permeable pavement site is suggested.

关 键 词：透水砖 堵塞机制 堵塞试验 海绵城市 

分 类 号：TU992[建筑科学—市政工程]