Performance of cylindrical detention pond (CDP) as depression storage under fully saturated condition
Keywords:Depression Storage, Cylindrical Detention Pond, Permeable Pavement, Storm Water Management, Fully Saturated.
Permeable pavements are a key Storm water management measure employed both to attenuate surface runoff in urban areas and to filter urban storm water pollutants. Existing permeable pavements (PP) are design with the specific percentage porosity whereby enabling excess rainwater to infiltrate through the system and acting as a depression storage at the same time. Depression storage basically refers to the volume of water trapped in the depression when the precipitation of a storm reaches the ground and filled up all the depression before it can flow over the surface. Cylindrical Detention Pond (CDP) is an alternative paving material that may alleviate many of the hydrological problems caused by urban runoff from developed areas. CDP consist of three basic component; top cover, bottom cover and hollow cylindrical at centre (300mm thickness). The hollow cylindrical has approximate 50 percent porosity from the total solid of component, which is every 1 inch (25 mm) of pavement depth can hold 0.5 inches (12.5 mm) of rain in theoretical. In this study, the depression storage rate of CDP was investigated under three different rainfall intensity scenarios which are 77mm/hr (low), 153mm/hr (medium), and 230mm/hr (heavy) respectively whereby it function to monitoring the analytical trend line. The experiment was conducted in model box in the laboratory under fully saturated condition. It found that the CDP can perform to detent the water until 180 min of excess rainfall for all 2 year ARI, 5 year ARI, 10 year ARI, 20 year ARI, 50 year ARI and 100 year ARI with different rates. The result was proved the hollow cylindrical at centre of CDP very effective in runoff volume reduction according to the different ARI trend line projection.
 D. N. Pennington, J. R. Hansel, and D. L. Gorchov, â€œUrbanization and riparian forest woody communities: Diversity, composition, and structure within a metropolitan landscape,â€ Biol. Conserv., vol. 143, no. 1, pp. 182â€“194, 2010. https://doi.org/10.1016/j.biocon.2009.10.002.
 N. A. Zakaria, A. A. Ghani, R. Abdullah, L. M. Sidek, A. H. Kassim, and A. Ainan, â€œMSMAâ€“A New Urban Stormwater Management Manual for Malaysia,â€ Int. Conf. HydroEngineering, pp. 1â€“10, 2004. https://doi.org/10.1201/b10534
 Humes, â€œStormwater detention and infiltration,â€ J. Hydrol., no. 1, 2012.
 M. Othman and M. Aminur, â€œReview of Permeable Pavement Systems in Malaysia Conditions,â€ Int. J. Sustain. Dev., vol. 2, no. 4, pp. 27â€“36, 2012.
 J. Parkinson, â€œIntegrated urban water management : humid tropics,â€ UNESCO Publ., 2010. https://doi.org/10.1201/b10534.
 M. Scholz and P. Grabowiecki, â€œReview of permeable pavement systems,â€ Build. Environ., vol. 42, no. 11, pp. 3830â€“3836, 2007. https://doi.org/10.1016/j.buildenv.2006.11.016.
 P. T. Weiss, M. Kayhanian, L. Khazanovich, and J. S. Gulliver, â€œPermeable Pavements in Cold Climates: State of the Art and Cold Climate Case Studies,â€ Mn/Rc 2015-30, no. June, p. 375, 2015.
 California Department of Transportation, â€œPervious Pavement Design Guidance,â€ 2013.
 J. Foster, A. Lowe, and S. Winkelman, â€œThe Value of Green Infrastructure for Urban Climate Adaptation,â€ Cent. Clean Air Policy, no. February, p. 52, 2011.
 E. J. Mwendera and J. Feyen, â€œEstimation of depression storage and Manningâ€™s resistance coefficient from random roughness measurements,â€ Geoderma, vol. 52, no. 3â€“4, pp. 235â€“250, 1992. https://doi.org/10.1016/0016-7061(92)90039-A.
 W. Ullah and W. T. Dickinson, â€œQuantitative description of depression storage using a digital surface model. I. Determination of depression storage,â€ J. Hydrol., vol. 42, no. 1â€“2, pp. 63â€“75, 1979. https://doi.org/10.1016/0022-1694(79)90006-4.
 T. Nehls, M. Menzel, and G. Wessolek, â€œDepression storage capacities of different ideal pavements as quantified by a terrestrial laser scanning-based method,â€ Water Sci. Technol., vol. 71, no. 6, pp. 862â€“869, 2015. https://doi.org/10.2166/wst.2015.025.
 A. Mannan, N. Bateni, and D. Mah Yau Seng, â€œPerformance of Micro-detention Pond using Precast Honeycomb Structure for Green Pavement in Housing Area Progress Report Exploratory Research Grant Scheme(ERGS) 2015(Phase 4),â€ 2015.