In the soil illustrated in the picture below, a 60-foot-long drilled pile is to be built using the open hole method. The pile will be 24 inches in diameter, and the bottom will be 60 inches in diameter. The soil conditions are homogeneous. Determine the allowable downward load capacity using a method. (The soil is in dry condition) (All the measurements are in feet) -1.5 Stiff silty clay Y = 105 lb/ft³ Su=1600 lb/ft² Stiff silty clay y = 108 lb/ft³ =1400 lb/ft2 Very Stiff silty clay y = 109 lb/ft³ Su = 4000 lb/ft² 12 25 23

In the soil illustrated in the picture below, a 60-foot-long drilled pile is to be built using the open hole method. The pile will be 24 inches in diameter, and the bottom will be 60 inches in diameter. The soil conditions are homogeneous. Determine the allowable downward load capacity using a method. (The soil is in dry condition) (All the measurements are in feet) -1.5 Stiff silty clay Y = 105 lb/ft³ Su=1600 lb/ft² Stiff silty clay y = 108 lb/ft³ =1400 lb/ft2 Very Stiff silty clay y = 109 lb/ft³ Su = 4000 lb/ft² 12 25 23

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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Concept explainers

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

Question

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In the soil illustrated in the picture below, a 60-foot-long drilled pile is to be built using the open
hole method. The pile will be 24 inches in diameter, and the bottom will be 60 inches in diameter.
The soil conditions are homogeneous. Determine the allowable downward load capacity using a
method. (The soil is in dry condition) (All the measurements are in feet)
-1.5
Stiff silty clay
Y = 105 lb/ft3
Su =
1600 lb/ft²
Stiff silty clay
Y = 108 lb/ft³
Su 1400 lb/ft²
T
Very Stiff silty clay
y = 109 lb/ft³
Su = 4000 lb/ft²
12
25
23

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