缝隙透水路面透水性能研究

Study on Permeability Performance of Gap Permeable Pavement

采用单一堵塞材料、复合堵塞材料来模拟缝隙透水路面堵塞过程,并用透水系数恢复率来表征缝隙透水路面透水性能恢复程度。研究结果表明,采用单一堵塞材料来堵塞缝隙透水路面时,随着堵塞材料粒径的减小,透水路面透水系数恢复率降低愈明显。根据路面实际情况,提出了透水路面透水性能恢复试验研究时复合堵塞材料组成及用量。为保证缝隙透水路面透水系数恢复率达到80%,缝隙宽度宜设置为10 mm,清理措施宜采取真空度低于-20 kPa的吸尘器清理和2～4 MPa压力水清理的双重措施。

The single clogging material and composite clogging material are used to simulate the clogging process of gap permeable pavement,and the permeability coefficient recovery rate is used to characterize the permeability performance recovery of gap permeable pavement.It is shown that as the particle size of the clogging material decreases,the permeability coefficient recovery rate of the permeable pavement decreases more obviously.According to the actual situation of the road surface,the composition and dosage of composite clogging material during the test study of permeable performance recovery are proposed.In order to ensure the permeability coefficient recovery rate of the gap permeable pavement reach 80%,the gap width should be set to 10 mm,and the cleaning measures should take double measures of vacuum cleaner cleaning with a vacuum of less than-20 k Pa and 2~4 MPa pressure water cleaning.