Abstract
In coastal areas, abnormally high pressure may be caused by the tide-induced water table variation under extensive pavements, particularly during rainfall. To simulate the rainfall infiltration effects on the air permeability of asphalt pavements in coastal area, column-shaped asphalt sample was fixed in the upper part of a steel cylinder with its upper surface saturated with ponding water (depth < 5 mm) and open to the atmosphere. The cylinder’s lower part formed an air chamber. The chamber was pressurized and then the air therein was released naturally through the sample. The pressure variation with time in the chamber was recorded for analysis. Based on the Green–Ampt piston model for the surface water infiltration, an approximate analytical solution was derived to describe the pressure–time relationship in the chamber. A new parameter called the escape pressure was introduced to describe the air pressure needed for the chamber air to break through the capillary pressure induced by the ponding water. The analytical solution gave good estimations of both the escape pressures and the harmonic averages of the permeabilities of the wet and dry parts of 14 samples in the sense that excellent fittings were obtained between the observed and predicted air pressures in the air chamber. The estimated escape pressure ranges from 0.0 to 1.74 kPa. The harmonic average of the permeabilities of the wet and dry parts is 5–94% of the dry sample’s permeability.
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References
Baehr AL, Hult MF (1991) Evaluation of unsaturated zone air permeability through pneumatic tests. Water Resour Res 27:2605–2617
Baehr AL, Joss CJ (1995) An updated model of induced airflow in the unsaturated zone. Water Resour Res 31(2):417–421
Civil Engineering Office (1996) Coastal infrastructure development in Hong Kong: a review. In: Proceedings of the symposium on hydraulics of Hong Kong waters, 28–29 November 1995, Civil Engineering Office, Civil Engineering Department (Hong Kong), pp 402
Corey AT (1954) The interrelations between gas and oil relative permeabilities. Producers Monthly 19(1):38–41
Geotechnical Consulting Group (Asia) Ltd (2001) Air permeability testing. Report No. R31/6
Green WH, Ampt GA (1911) Studies on soil physics, Part I Flow of air and water through soils. J Agric Sci 4:1–24
Guo HP, Jiao JJ (2008) Numerical study of the airflow in the unsaturated zone induced by sea tides. Water Resour Res 44:W06402. doi:10.1029/2007WR006532
Hilton MJ, Manning SS (1995) Conversion of coastal habitats in Singapore: indications of unsustainable development. Environ Conserv 22(4):307–322
Hoeksema RJ (2007) Three stages in the history of land reclamation in the Netherlands. Irrig Drain 56(S1):S113–S126
Jacob CE (1950) Flow of groundwater. In: Rouse H (ed) Engineering hydraulics. Wiley, Hoboken N.J, pp 321–386
Jiao JJ, Li HL (2004) Breathing of coastal vadose zone induced by sea level fluctuations. Geophys Res Lett 31:L11502. doi:10.1029/2004GL019572
Kawamoto K, Moldrup P, Schjonning P, Iversen BV, Komatsu T, Rolston DE (2006) Gas transport parameters in the vadose zone: development and tests of Power-Law models for air permeability. Vadose Zone J 5:1205–1215
Leung WK, Li CH, Pickles AR (2007) Heaving of airfield pavement at Hong Kong International Airport. 2007 FAA Worldwide Airport Technology Transfer Conference, Atlantic City, NJ, USA, pp 1–13
Li HL, Jiao JJ (2005) One-dimensional airflow in unsaturated zone induced by periodic water table fluctuation. Water Resour Res 41:W04007. doi:10.1029/2004WR003916
Li HL, Jiao JJ, Luk M (2004) A falling-pressure method for measuring air permeability of asphalt in laboratory. J Hydrol 286:69–77
Massmann JW, Johnson L (2001) Exercises illustrating flow in porous media. Ground Water 39(4):499–503
McWhorter DB (1990) Unsteady radial flow of gas in the vadose zone. J Contam Hydrol 5:297–314
Moldrup P, Yoshikawa S, Oleson T, Komatsu T, Rolston DE (2003) Air permeability in undisturbed volcanic ash soils: predictive model test and soil structure fingerprint. Soil Sci Soc Am J 67:32–40
Nielsen P (1990) Tidal dynamics of the water table in beaches. Water Resour Res 26:2127–2134
Shan C (1995) Analytical solutions for determining vertical air permeability in unsaturated soils. Water Resour Res 31:2193–2200
Shan C (2006) An analytical solution for transient gas flow in a multiwell system. Water Resour Res 42:W10401. doi:10.1029/2005WR004737
Shan C, Falta RW, Javandel I (1992) Analytical solutions for steady state gas flow to a soil vapor extraction well. Water Resour Res 28(4):1105–1120
Springer DS, Loaiciga HA, Cullen SJ, Everett LG (1998) Air permeability of porous materials under controlled laboratory conditions. Ground Water 36(4):558–565
Stonestrom DA, Rubin J (1989) Air permeability and trapped-air content in two soils. Water Resour Res 25(9):1959–1969
Switzer C, Kosson DS (2007) Evaluation of air permeability in layered unsaturated materials. J Contam Hydrol 90:125–145
Tyner JS, Wright WC, Lee J, Crenshaw AD (2005) A dynamic air permeameter for coarse-textured soil columns and cores. Vadose Zone J 4:428–433
USGS (2007) The San Francisco Bay and Delta-An Estuary undergoing change. F. H. Nichols. http://sfbay.wr.usgs.gov/general_factsheets/change.html. Accessed 13 December 2007
Acknowledgments
This research was supported by the Research Grants Council of the Hong Kong Special Administrative Region, China (HKU 7028/05P), the National Natural Science Foundation of China (No. 40672167) and the 111 Project (B08030). We are very grateful for the helpful comments from an anonymous reviewer and Dr. James W. LaMoreaux, the Editor-in-Chief.
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Li, H., Zhang, Y. & Xia, Y. An approximate analytical solution for measuring air permeability of asphalt samples partially saturated with water. Environ Earth Sci 63, 283–290 (2011). https://doi.org/10.1007/s12665-010-0699-8
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DOI: https://doi.org/10.1007/s12665-010-0699-8