【摘要】 通过一系列室内试验,测定透水砖在特定试验条件下的渗透系数,并分析其变化特征及成因。结果表明,由于城市雨水径流悬浮物含量高,导致透水砖在使用一段时间以后便会出现明显的堵塞问题,严重时可失去透水功能。进一步研究使用表面沉积物清除方法对透水砖透水性能的改善效果,结果表明,维护措施对透水砖渗透性能的恢复有一定作用,但处理效果有限。更多还原

【Abstract】 Laboratory experiments were carried out to determine the permeability coefficient of permeable bricks under specific experimental conditions. And an analysis of its changing characteristics and causes was made. The results show that the permeable brick will have obvious blockage after being used for a period of time,and will loss the infiltration capacity in severe cases due to high suspended matter content in the urban rainwater runoff. Further experiments were made to probe the effects of improved permeability of permeable brick by surface sediment cleaning method. The results show that this method has a certain recovery effect,but the effect is limited.更多还原