International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2569

Full Length Research Paper

The effectiveness of using a recharge well to mitigate flood measured in a physical model

Lawal Abdul Qayoom Tunji1, Ab Aziz Abdul Latiff2, Dwi Tjahjanto3 and Shatirah Akib3*      
1Faculty of Civil Engineering, Universiti Malaya (UM), Malaysia. 2Faculty of Civil Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Malaysia. 3Faculty of Civil Engineering, Universiti Tecknologi Malaysia (UTM), Malaysia.  
Email: [email protected]

  •  Accepted: 20 July 2011
  •  Published: 02 October 2011


A structural method that involves the use of a recharge well to mitigate flood in a flat area is adopted as a mitigation method for this research. The determination of the effectiveness of this method was carried out by simulating storm-water accumulation in a reduced scaled physical model. The physical model had a rainfall simulator fitted to a sand tank which contained soil materials of different grain size and different coefficient of permeability. Size of the sand tank is 100 cm  60 cm × 40 cm and a perforated pipe of 3.5 cm are fixed in the model to simulate recharge well. By varying the rainfall intensity and rainfall duration a relationship was established between the rainfall characteristics and movement of storm-water into the ground.  An average of 43.3% increase in recharge rate was observed when the model was tested with the recharged well as compared to a condition in which recharge well is not present. The reduction in rainwater when the recharge well exists is 6.07% of the total rainwater.


Key words: Physical model, recharge well, groundwater, flood, rainfall simulator.