1. Using the boring log shown below determine the ultimate bearing capacity of a rectangularfooting having a width of 4 feet and a length of 8 feet. Standard Penetration Tests wereconducted at 5 foot intervals. The depth of footing will be 3 feet below the ground surface.Project Name:Johnson HallLocation:Birmingham, AlabamaBoring No.:В-2Date: January 4, 2019Surface Elev.:357 ftDepth(ft)MoistureN No.qu(tsf)Description4 inches of top soil(%)Commentsy = 120 pcfReddish Brown silty Clay141.2LL = 43PI = 20$ = 7°10Dark Reddish Brown silty Clay15221.31515211.6GNEBoring Terminated at 15 feetBoring Checked after24 hoursN - Standard Penetration Test NumberLL – Liquid Limitqu – Unconfined Compression Strength$ - Angle of Internal FrictionPI – Plastic IndexGNE – GroundwaterNot Encountered20

1. Using the boring log shown below determine the ultimate bearing capacity of a rectangular footing having a width of 4 feet and a length of 8 feet. Standard Penetration Tests were conducted at 5 foot intervals. The depth of footing will be 3 feet below the ground surface.

1. Using the boring log shown below determine the ultimate bearing capacity of a rectangular footing having a width of 4 feet and a length of 8 feet. Standard Penetration Tests were conducted at 5 foot intervals. The depth of footing will be 3 feet below the ground surface.

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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Question

1. Using the boring log shown below determine the ultimate bearing capacity of a rectangular
footing having a width of 4 feet and a length of 8 feet. Standard Penetration Tests were
conducted at 5 foot intervals. The depth of footing will be 3 feet below the ground surface.
Project Name:
Johnson Hall
Location:
Birmingham, Alabama
Boring No.:
В-2
Date: January 4, 2019
Surface Elev.:
357 ft
Depth
(ft)
Moisture
N No.
qu
(tsf)
Description
4 inches of top soil
(%)
Comments
y = 120 pcf
Reddish Brown silty Clay
14
1.2
LL = 43
PI = 20
$ = 7°
10
Dark Reddish Brown silty Clay
15
22
1.3
15
15
21
1.6
GNE
Boring Terminated at 15 feet
Boring Checked after
24 hours
N - Standard Penetration Test Number
LL – Liquid Limit
qu – Unconfined Compression Strength
$ - Angle of Internal Friction
PI – Plastic Index
GNE – Groundwater
Not Encountered
20

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