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2016 Vol.32, Issue 5 Preview Page
Effect of Bedding Layer and Clogging on Drainage Capacity of Pervious Sidewalk Block in Unsaturated Condition

노반 및 공극 막힘 현상에 따른 투수성 보도블록의 불포화 상태에서의 배수 성능에 관한 실험적 연구

Dawa Seo1
,
Tae Sup Yun2*
서 다와1
,
윤 태섭2*
1Graduate Student, Dept. of Civil and Environmental Engrg., Yonsei Univ.
2Associate Prof., Dept. of Civil and Environmental Engrg., Yonsei Univ.
1연세대학교 토목환경공학과 석사과정
2연세대학교 토목환경공학과 부교수
*교신저자. *Corresponding Author. 
31 May 2016. pp. 37-48
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Abstract

This study aims to figure out the behavior of runoff and drainage of pervious sidewalk block in actual construction environment by experiments. The specimens with surface layer and bedding layer are subjected to the drainage test by considering unsaturated condition and unique rainfall condition in urban areas. The repeated drainage test and clogging test were conducted with time intervals, and 3D X-ray CT image analysis and evaporation test were carried out for a quantitative analysis of drainage test. The results present that the spatial distribution of pores by evaporation for time intervals induces runoff. Especially, the bedding layer under the block is significantly critical in overall hydraulic behavior such as drainage and evaporation compared to the surface layer. Moreover, the sediments in pores promote the change in pores by evaporation and this induces deteriorated drainage capacity which is hard to recover. In addition, it is revealed that the maximum runoff height grows as the drainage capacity declines depending on the pre-wetting condition.

Keywords
Pervious sidewalk block
Surface layer
Bedding layer
Drainage capacity
Runoff

본 연구는 실제 시공 환경에서 투수성 보도블록의 표면 유출 및 배수 특성을 알아보고자 하였으며, 표층 및 노반을 포함한 시편을 대상으로 불포화 상태에서 도심 내 우수 조건을 고려한 배수 실험을 진행하였다. 일정한 시간 간격을 두고 반복적인 배수 실험 및 공극 막힘 실험이 시행되었으며, 정량적 분석을 위하여 3D X-ray CT 이미지 분석 및 증발 실험을 시행하였다. 실험 결과, 시간 간격 동안 발생한 증발로 인해 공극 내 물이 공간적으로 재분포되어 표면 유출을 야기시키는 것으로 나타났다. 특히, 공기에 노출되어 있는 표층보다 시편 하부에 위치한 노반의 공극 변화가 투수성 보도블록의 배수, 증발 등 전체적인 수리학적 거동을 크게 저하시켰다. 또한 공극 내 침전물은 증발로 인한 변화를 증진 시키며, 이 때 저하된 배수 성능은 쉽게 회복되지 않는 것으로 나타났다. 그리고 선행우수조건에 의하여 배수 성능이 저감되면서 최대 표면 유출 높이가 증가하는 것으로 나타났다.

References
1
1.Korea Meteorological Administration (2014), http://www.kma.go.kr/ weather/climate/extreme_daily.jsp? type=hour_pre&mm=7&x=10&y=6.
2
2.KS (Korean Industrial Standards) (2014), “Concrete interlocking block for side walk and road”, KS F 4419, Seoul, Korea.
3
3.KS (Korean Industrial Standards) (2010), “Standard test method for compressive strength of concrete”, KS F 2405, Seoul, Korea.
4
4.KS (Korean Industrial Standards) (2000), “Standard test method for flexural strength of concrete”, KS F 2408, Seoul, Korea.
5
5.Seoul Metropolitan Facilities Management Corporation (2013), “Designing and building manual of sidewalk”, Seoul, Korea.
6
6.Chindaprasirt, P., Hatanaka, S., Chareerat, T., Mishima, N., and Yuasa, Y. (2008), “Cement Paste Characteristics and Porous Concrete Properties”, Construction and Building Materials, Vol.22, No.5, pp.894-901.
7
7.Deo, O., Sumannasooriya, M., and Neithalath. N. (2010), “Permeability Reduction in Pervious Concretes Due to Clogging: Experiments and Modeling”, Journal of Materials in Civil Engineering, 10.1061/ (ASCE) MT.1943-5533.0000079, 741-751.
8
8.European Commission (2013), “Community Research and Development Information Service, FLOODPROBE (Technologies for the cost- effective flood protection of the built environment).” http://cordis. europa.eu/result/rcn/53190_en.html
9
9.Haselbach, L. (2010), “Pervious Concrete Testing Methods”, Low Impact Development 2010: Redefining Water in the City, California, U.S., pp.180-192.
10
10.Huang, B., Wu, H., Shu, X., and Burdette, E. G. (2010), “Laboratory Evaluation of Permeability and Strength of Polymer-modified Pervious Concrete”, Construction and Building Materials, Vol.24, No.5, pp.818-823.
11
11.Interpave (2010), “Permeable pavement (Guide to the design, con-struction and maintenance of concrete permeable block pavements edition 6)”, The Precast Concrete Paving and Kerb Association, U.K.
12
12.Jongman, B., Hochrainer-Stigler, S., Feyen, L., Aerts, J. C., Mechler, R., Botzen, W. W., Bouwer, L. M., Pflug, G., Rojas, R., and Ward, P. J. (2014), “Increasing Stress on Disaster-risk Finance due to Large Floods”, Nature Climate Change, Vol.4, No.4, pp.264-268.
13
13.Kevern, J. T., Schaefer, V. R., Wang, K., and Suleiman, M. T. (2008), “Pervious Concrete Mixture Proportions for Improved Freeze- thaw Durability”, Journal of ASTM International, Vol.5, No.2, pp.1-12.
14
14.Kevern, J., Wang, K., Suleiman, M., and Schaefer, V. (2005), “Mix design development for pervious concrete in cold weather climates”, The Mid-Continent Transportation Research Symposium, Ames, IA.
15
15.Lee, M. and Hong, J. H. (2015), “Estimating Damage Costs of Natural Disasters in Korea”, The 5th Congress of the East Asian Association of Environmental and Resource Economics, Taipei, Taiwan.
16
16.Lehmann, P., Assouline, S., and Or, D. (2008), “Characteristic Lengths Affecting Evaporative Drying of Porous Media”, Physical Review E, Vol.77, No.5, pp.056309.
17
17.Maupin Jr, G. W. (2000), “Investigation of test methods, pavements, and laboratory design related to asphalt permeability”, Virginia Transportation Research Council, Report No. VTRC 00-R24, Virginia, U.S.
18
18.National Center for Atmospheric Research (NCAR) (2001), “Extreme Weather Sourcebook 2001: Economic and Other Societal Impacts Related to Hurricanes, Floods, Tornadoes, Lightning, and Other U.S. Weather Phenomena”, http://sciencepolicy.colorado.edu/source book/data.html
19
19.NCDENR (2007), “Stormwater Best Management Practices”, North Carolina Department of Environment and Natural Resources, Division of Water Quality, Water Quality Section, North Carolina, U.S.
20
20.Neithalath, N., Weiss, J., and Olek, J. (2006), “Characterizing enhanced porosity concrete using electrical impedance to predict acoustic and hydraulic performance”, Cement and Concrete Research, Vol.36, No.11, pp.2074-2085.
21
21.Paine, J. (1992), “Portland cement pervious pavement construction”, Concrete Construction, Vol.37, No.8, pp.655-658.
22
22.Perkins Jr, F. M. (1957), “An Investigation of the Role of Capillary Forces in Laboratory Water Floods”, J. Petrol. Technol., Vol.9, No.11, pp.49-51.
23
23.Santamarina, J. C., Klein, K. A., and Fam, M. A. (2001), “Soils and waves: particulate materials behavior, characterization and process monitoring”, Wiley, New York. U.S.
24
24.Smith, D. R. (2000), “Permeable Interlocking Concrete Pavements”, Interlocking Concrete Pavement Institute, Washington, D.C. U.S.
25
25.Shokri, N., Lehmann, P., and Or, D. (2010), “Evaporation from layered porous media”, J. 490 Geophys. Res., 10.1029/2009JB006743, 115(B6).
26
26.Shokri, N. and Or, D. (2011), “What determines drying rates at the onset of diffusion controlled stage‐2 evaporation from porous media?”, Water Resources Research, 47(9). doi: 10.1029/2010WR010284
27
27.Tennis, Paul, D., Leming, Michael, L., and Akers, David, J. (2004), “Pervious Concrete Pavements”, EB302.02, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, U.S.
28
28.Tong, B. (2011), “Clogging effects of portland cement pervious concrete”, Ph.D thesis, Iowa State University, Iowa, U.S.
29
29.Wanielista, M. and Chopra, M. (2007), “Performance assessment of Portland cement pervious pavement”, Report, Stormwater Management Academy, University of Central Florida, Florida, U.S.
30
30.Weizu, G. and Freer, J. (1995), “Patterns of surface and subsurface runoff generation”, IAHS Publications-Series of Proceedings and Reports-Intern Assoc Hydrological Sciences, 229(1995), pp.265-274.
31
31.Yang, J. and Jiang, G. (2003), “Experimental study on properties of pervious concrete pavement materials”, Cement and Concrete Research, Vol.33, No.3, pp.381-386.
32
32.Yiotis, A. G., Tsimpanogiannis, I. N., Stubos, A. K., and Yortsos, Y. C. (2006), “Pore-network Study of the Characteristic Periods in the Drying of Porous Materials”, Journal of Colloid and Interface Science, Vol.297, No.2, pp.738-748.
Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 32
  • No :5
  • Pages :37-48
  • Received Date : 2016-03-25
  • Revised Date : 2016-04-25
  • Accepted Date : 2016-05-09
  • DOI :https://doi.org/10.7843/kgs.2016.32.5.37
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