Geotechnical Parameters Impact on Artificial Ground Water Recharging Technique for Urban Centers

Pratima Patel, Mahesh Desai, Jatin Desai

.

DOI: 10.4236/jwarp.2011.35035                

Abstract

Water scarcity is a serious problem throughout the world for both urban & rural community. Urban centers in India are facing an ironical situation of water scarcity today. This paper includes an Analytical solution, Numerical modeling, Empirical approaches, In-situ test results to predict recharge (rate) mound of the ground-water and capacity of recharge well which is essential for the proper management of suitable artificial ground-water recharge systems to maintain water balance and stop salt water intrusion. Authors have derived analytical equation for predicting growth as well as decline of the ground-water mound depending on the intensity of recharge rate qr with different value of permeability k, depth of pervious strata H and diameter of well d, also studying the effects of variation in the geotechnical parameters on water-table fluctuations. In this paper to study the impact of numerical modeling using quadratic equation for unconfined aquifer base on rainfall intensity P and a change in saturated thickness H with variation in piezometric level. Empirical approaches are for evaluation of correct value of k of an undercharged unconfined aquifer with drawdown s0, influence zone L, recharge rate qr. In-situ test results give actual correlation between value of recharging rate of well and permeability on field. Authors have verified recharging rate of installed well from all approaches. A result obtained from the various field case studies gives the validation of the derived equation. Scientific quality measures of aquifer water are also recorded.

Keywords

Unconfined Aquifer, Well Determinant – Recharge Rate & Hydraulic Conductivity, Geometrical Properties Of Aquifer, Pre Cast Octagonal Recharge Well

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	P. Pratima and M. D. Desai, “Clean Water Will be Scarce; Artificial Recharge of Aquifers: An Economical & Sustainable Solution for Future Demand,” International Perspective on Water Resources & the Environment, Singapore, 4-6 January 2011, p. 1055.
[2]	L. Huisman and T. N. Olsthoorn, “Artificial Groundwater Recharge,” Pitman Advanced Publishing Program, London, 1983.
[3]	J. W. Warner and D. Molden, “Mathematical Analysis of Artificial Recharge from Basins,” JAWRA Journal of the American Water Resources Association, Vol. 25, No. 2, 1989, pp. 401-411. doi:10.1111/j.1752-1688.1989.tb03077.x
[4]	P. Patel and M. D. Desai, “Numerical Modeling and Mathematics of Ground Water Recharging - Unconfined Aquifer,” International Conference on Advances in Concrete, Structural and Geotechnical Engineering, Pilani, 25-27 October 2009, pp. 96-104.
[5]	I. S. 5529 Part 1, “Indian Standard Code of Practice for In-situ Permeability Tests,” 1985, pp. 6-12.
[6]	O. J. Helweg and G. Smith, “Appropriate Technology for Artificial Aquifers, Ground Water,” Ground Water, Vol. 16, No. 3, 1978, pp. 144-148. doi:10.1111/j.1745-6584.1978.tb03215.x
[7]	P. Patel and M. D. Desai, “Artificial Recharge of Ground Water by Storm Water Reuse is Viable and Sustainable Solution for Better Tomorrow,” 17th Congress IAHR- -APD International Conference, Green Device Paper no.5, Auckland, 21-24 February 2010.
[8]	M. R. Hausmann, “Engineering Principles of Ground Mo- dification,” McGraw Hill, New York, 1990.
[9]	J. Bear, “Hydraulics of Ground Water,” McGraw-Hill, New York, 1979.
[10]	USBR EARTH MANUAL PART 1 & 2, “Procedure for Field Permeability Testing by the Well Permeameter Method,” 3rd Edition, Department of the Interior, Bureau of Reclamation, Denver, 1998, pp. 541-546.