Volume : IV, Issue : VI, June - 2015

EVALUATION OF SETTLEMENT AND LOAD CARRYING CAPACITY OF FOOTING WITH MICROPILES ON SAND

B. Vani, Dr. P. D. Arumairaj

Abstract :

 Micropiles are small diameter cast insitu reinforced grouted piles and it has been effectively used in many applications of ground improvement. It increases the load carrying capacity of soil and reduces the settlement. It is used in strengthening existing foundations. In this study, the effect of Micropiles on the load carrying capacity of footing resting on sand is studied. The effect of Micropiles is investigated by conducting experimental model studies. The parameters involved in this study include pile length and pile spacing. Load test was carried out on a model footing resting on sand with and without Micropiles. Load test trial is repeated for footing on micropiles with varying lengths of 10, 20 and 30 times the diameter and spacing 5, 4, 3, 2 times the diameter. The load–settlement behavior of each case is compared. Optimum length and optimum spacing for the micropiles are determined. It is observed that the effect of micropiles in the peripheral of footing resists lateral displacement of soil underneath the footing. The micropiles beyond significant depth becomes redundant.

Keywords :

Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

B.Vani, Dr.P.D.Arumairaj Evaluation of Settlement and Load Carrying Capacity of Footing with Micropiles on Sand International Journal of Scientific Research, Vol : 4, Issue : 6 June 2015

Number of Downloads : 1209

References :