| dc.description.abstract | The flosishing ecomony has brought populos. People stare to change the rainwater to the idea of preventing the flood and controlling the flood as quickly as possible in the past, Revise for the goodwill with water and avoid the flood gradually.As the urbanization has raised bringing population concentration and artificial land, let impermeability area has been increased. Which decrease natural plant blanket , and reduce rainfall to infiltrate under ground.Urbanization increased the heat source producing and energy consuming.It changed the thermal balance, forming heat island effect. The simple and concrete way to improve city of climate use the ’’permeable pavement ’’The method of the permeable administer a lot of years in America ,Europe and Japan .Taiwan is still under study. Public Construction Sommission Executive Yuan promote permeable pavement was completed.It will be measured continuously in
the future.
At sindian city, we make four type of permeable pavement experiment zone.At laboratory, the coefficient of permeability was all above 10-3cm/sec, and the average of water-holding is 18 cm.We had gathered the data for last one and half years, find that permeable concrete perform the best e for water-holding capacity.The second one is permeable asphalt. We find out that brick and permeable brick, show no difference. The permeable brick couldn’t work might be that the permeable brick blocked seriously.From the data of heat island effect, we find out the main relation between sunshine and environmental temperature. The relation between ground temperature and sunshine is negative coefficient (R=-0.7).The relation between water content and environmental
temperature is negative coefficient (R=-0.7).The reduce environmental temperature for Permeable pavement. The comparison with concrete pavement, permeable asphalt can lower 2-3℃, brick can lower 4-5℃, permeable brick can lower 3-4℃,permeable concrete can lower 3-4℃. By GPR map we determinedthat, it was agitated obviously between surface and subbase. Observing the environmental noise, permeable concrete and permeable asphalt can reduce 2-3 dB.The result show that the permeable pavement couldn’’t reduce comfortability rapidly, but could be improved Based on the research findings listed above, permeable pavement perform well, we can analyses the cost in the future. To judge the difference between permeable pavement and traditional one. | en_US |