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作 者:马昱斐 谢昊文 高成[1] MA Yufei XIE Haowen GAO Cheng(School of Hydrology and Water Recourses Hohai University, Nanjing 210098, China)
机构地区:[1]河海大学水文与水资源学院,江苏南京210098
出 处:《人民珠江》2017年第6期24-28,共5页Pearl River
基 金:国家自然科学基金青年项目(41301016);中国水利水电科学研究院流域水循环模拟与调控国家重点实验室开放研究基金(IWH R-SKL-201210)
摘 要:城市不透水地面面积的增加,使得城市内涝灾害愈加严重,而道路透水铺装对缓解这一问题具有显著的改善作用。设计了一种新型透水铺装导水结构,采用实验室试验与ABAQUS模拟相结合的研究方法,对新型透水铺装导水结构的渗透系数进行测定。结果表明,40 mm的新型透水铺装导水结构的下渗速率最大;ABAQUS模拟得,进流速度为0.005 09 m/s时,40 mm的新型透水铺装导水结构的最大渗透流速为0.036 74 m/s;在相同的实验条件下,新型透水铺装导水结构的渗透系数为0.006 36 m/s,同体积碎石透水铺装的渗透系数为0.004 56 m/s。因而该新型导水结构下渗速率大,渗透效果优于传统透水铺装。该成果为削减地面径流提供了新方法,对道路透水铺装的研究具有借鉴作用。Increasing use of impermeable pavement in urban surface caused serious waterlogging disasters. Permeable pavement has a significant effect to alleviate this problem. This paper designed a new-style water structure of permeable pavement, and used a combined method of bench-scale experiment and ABAQUS simulation for the hydraulic conductivity test. The results show that the infiltration velocity of?the new permeable pavement structure of 40 millimeters is the largest. In ABAQUS simulation, when the rate of inflow is 0. 005 09 meters per second, the maximum infiltration velocity of the new permeable pavement structure of 40 millimeters is 0. 03674 meters per second. Under the same experimental conditions, the hydraulic conductivity of the new permeable pavement is 0. 006 36 meters per second, when the same volume of macadam permeable pavement is 0. 004 56 meters per second. Therefore, the infiltration effect of the new permeable pavement structure is superior to the traditional permeable pavement. The achievements provide a new method to reduce surface runoff and have a referential role for the study of permeable pavement.
分 类 号:TV997[水利工程—水利水电工程]
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