透水路面现场透水性测试方法比较
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摘要
现场准确测定透水路面(PP)的透水性是PP性能评价及维护的重要依据。以实验室透水混凝土(PC)试块测定结果为参照,通过试验比较了单环定水头法、单环变水头法、双环法等几种现场透水性测定方法的准确度,并进一步对透水环直径、测试水头等因素的影响进行了探讨。结果表明,现场测定PP透水系数时,测试水头在50 mm以下、内环直径在200 mm以上的双环定水头法的测定结果具有良好的准确度,可为PP现场透水性的准确测试提供借鉴。
Accurate determination of permeability coefficient of the permeable pavement (PP) is an important basis for its performance evaluation and maintenance. Based on the testing results of laboratory permeable concrete (PC) specimen,the accuracy of the three field permeability test methods,such as constant water head single-ring method,falling water head single-ring method and double-ring method,was compared,and the influence of the diameter of the ring,testing water head and other factors were further discussed. The results showed that the double-ring field permeability test method had the highest accuracy in the field determination of PP permeability coefficient when water head was less than50 mm and the inner ring diameter was above 200 mm. The results provide a good reference for the field test of PP permeability coefficient.
Accurate determination of permeability coefficient of the permeable pavement (PP) is an important basis for its performance evaluation and maintenance. Based on the testing results of laboratory permeable concrete (PC) specimen,the accuracy of the three field permeability test methods,such as constant water head single-ring method,falling water head single-ring method and double-ring method,was compared,and the influence of the diameter of the ring,testing water head and other factors were further discussed. The results showed that the double-ring field permeability test method had the highest accuracy in the field determination of PP permeability coefficient when water head was less than50 mm and the inner ring diameter was above 200 mm. The results provide a good reference for the field test of PP permeability coefficient.
引文
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[2]Liu Y,Bralts V F,Engel B A.Evaluating the effectiveness of management practices on hydrology and water quality at watershed scale with a rainfall-runoff model[J].Sci Total Environ,2015,511:298-308.
[3]Dierkes C,Kuhlmann J,Kandasamy J,et al.Pollution retention capability and maintenance of permeable pavements[A].Proceedings of the 9th International Conference on Urban Drainage[C].Portland:American Society of Civil Engineers,2002.
[4]Beecham S,Kandasamy J,Pezzaniti D.Influence of clogging on the effective life of permeable pavements[J].Water Management,2009,162(3):211-220.
[5]Li H,Harvey J,Kendall A.Field measurement of albedo for different land cover materials and effects on thermal performance[J].Build Environ,2013,59:536-546.
[6]Fassman E A,Blackbourn S.Urban runoff mitigation by a permeable pavement system over impermeable soils[J].J Hydrol Eng,2014,15(6):475-485.
[7]Lucke T,Beecham S.Field investigation of clogging in a permeable pavement system[J].Build Res Inf,2011,39(6):603-615.
[8]Li H,Kayhanian M,Harvey J T.Comparative field permeability measurement of permeable pavements using ASTMC1701 and NCAT permeameter methods[J].J Environ Manage,2013,118:144-152.
[9]黄大伟,魏姗姗,王原原,等.透水混凝土孔隙率快速检测方法[J].建材发展导向,2014(24):51-53.Huang Dawei,Wei Shanshan,Wang Yuanyuan,et al.Rapid detection method of porosity of permeable concrete[J].Development Guide to Building Materials,2014(24):51-53(in Chinese).
[10]Dougherty M,Hein M,Martina B A,et al.Quick surface infiltration test to assess maintenance needs on small pervious concrete sites[J].J Irrig Drain Eng,2011,137(8):553-563.
[11]Qin Y,Yang H,Deng Z,et al.Water permeability of pervious concrete is dependent on the applied pressure and testing methods[J].Adv Mater Sci Eng,2015.DOI:10.1155/2015/404136.
[12]李波,杨小龙.透水混凝土路面空隙维护前后堵塞物的位置与深度[J].中外公路,2013,33(6):55-58.Li Bo,Yang Xiaolong.Location and depth of pervious concrete clogging material before and after void maintenance[J].Journal of China&Foreign Highway,2013,33(6):55-58(in Chinese).
[13]马健萍.彩色透水混凝土路面工程管理实践[J].广东公路交通,2011(3):52-54.Ma Jianping.Color pervious concrete pavement project management practices[J].Guangdong Highway Communications,2011(3):52-54(in Chinese).
[14]张逆.透水路面渗水系数测试方法比较研究[J].公路交通技术,2016,32(1):6-9.Zhang Ni.Comparison and study on test methods for water permeability coefficients of permeable pavement[J].Technology of Highway and Transport,2016,32(1):6-9(in Chinese).
[15]唐益群,杨坪,王建秀,等.工程地下水[M].上海:同济大学出版社,2011.Tang Yiqun,Yang Ping,Wang Jianxiu,et al.Engineering Groundwater[M].Shanghai:Tongji University Press,2011(in Chinese).
[16]Youngs E G.Developments in the physics of infiltration[J].Soil Science Society of America Journal,1995,59(2):307-313.
[17]Montes F,Haselbach L.Measuring hydraulic conductivity in pervious concrete[J].Environ Eng Sci,2006,23(6):960-969.