A2 0.49620.48250.50360.4726 SITUATION: A 12 ft x 10 ft footing carries a total load of 300 tons. Standard penetration testwas conducted on the site. Test results were corrected for over burden pressure andcorrected N-values are listed as shown.Determine the maximum settlement if the ground water table and base of the foundation are 7ft and 4 ft below the ground surface respectively. Assume the dry and saturate unit weight ofthe sand are 115 pcf and 124 pcf respectively.Settlements of Loads on Sand (SPT)29Smas=28maximum settlement on dry sand in inchesNowest1+B.24Njowest28Smax =Xaif the ground water table is located at a depth below thebase of the footing less than the half the footings width (B/2).Xa = PP.Pa= effective overburden pressure at a depth B/2 below the footings base, assumingthe water table is not presentP. = effective overburden pressure at the same depth with water table presentq= applied pressure in tons/t?B = in feetDepth (m)Corrected N-values4.04060428044100361203914.03616.036

Given, P= 300 ton B = 10 ft Df = 7 ft

SITUATION: A 12 ftx 10 ft footing carries a total load of 300 tons. Standard penetration test was conducted on the site. Test results were corrected for over burden pressure and corrected N-values are listed as shown. Determine the maximum settiement if the ground water table and base of the foundation are 7 ft and 4 ft below the ground surface respectively. Assume the dry and saturate unit weight of the sand are 115 pcf and 124 pcf respectively. Settlements of Loads on Sand (SPT) 29 Sma= Nwt 28 maximum settlement on dry sand in inches 1+B 28 29 Nwt )if the ground water table is located at a depth below the Smax =Xa base of the footing less than the half the footings width (B/2). Xa = PP.

SITUATION: A 12 ftx 10 ft footing carries a total load of 300 tons. Standard penetration test was conducted on the site. Test results were corrected for over burden pressure and corrected N-values are listed as shown. Determine the maximum settiement if the ground water table and base of the foundation are 7 ft and 4 ft below the ground surface respectively. Assume the dry and saturate unit weight of the sand are 115 pcf and 124 pcf respectively. Settlements of Loads on Sand (SPT) 29 Sma= Nwt 28 maximum settlement on dry sand in inches 1+B 28 29 Nwt )if the ground water table is located at a depth below the Smax =Xa base of the footing less than the half the footings width (B/2). Xa = PP.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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