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2. Size a cantilever retaining wall to retain granular backfill with a height of 20 feet with a retained slope of 7° and the following properties: The retained soil has the following properties: yi = 123 lb/ft³ $'= 34° cı' = 0 The foundation soil has the following properties: y2 = 108 lb/ft³ $,'=13° c2' = 600 lb/ft? The wall is to have the minimum factors of safety ESoractue ES(elidine) >1 75 ESchooring

2. Size a cantilever retaining wall to retain granular backfill with a height of 20 feet with a retained slope of 7° and the following properties: The retained soil has the following properties: yi = 123 lb/ft³ $'= 34° cı' = 0 The foundation soil has the following properties: y2 = 108 lb/ft³ $,'=13° c2' = 600 lb/ft? The wall is to have the minimum factors of safety ESoractue ES(elidine) >1 75 ESchooring

Structural Analysis
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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2. Size a cantilever retaining wall to retain granular backfill with a height of 20 feet with a retained slope of 7° and the following properties: The retained soil has the following properties: y1 = 123 lb/ft $'= 34° cı'= 0 The foundation soil has the following properties: y2 = 108 lb/ft³ $,'=13° c2' = 600 lb/ft2 The wall is to have the minimum factors of safety FS(overtuming) 2 2.5 FS(sliding) 2 1.75 FS(bearing) 23 Use 150 lb/ft³ for the unit weight of concrete. Assume the cost for constructing the wall is $500.00/cubic yard (This unit rate provided includes forming, rebar, concrete, finishing, etc.). Calculate the estimated cost per foot of wall. The wall dimensions should be minimized to generate economy. Do not use a key to resist sliding. Use Rankine's earth pressure coefficients. A- Using the figure to the right, provide the dimensions to your wall below. A = B = C = в D= E = F = D. F Cost per foot of wall = $ E
Transcribed Image Text:2. Size a cantilever retaining wall to retain granular backfill with a height of 20 feet with a retained slope of 7° and the following properties: The retained soil has the following properties: y1 = 123 lb/ft $'= 34° cı'= 0 The foundation soil has the following properties: y2 = 108 lb/ft³ $,'=13° c2' = 600 lb/ft2 The wall is to have the minimum factors of safety FS(overtuming) 2 2.5 FS(sliding) 2 1.75 FS(bearing) 23 Use 150 lb/ft³ for the unit weight of concrete. Assume the cost for constructing the wall is $500.00/cubic yard (This unit rate provided includes forming, rebar, concrete, finishing, etc.). Calculate the estimated cost per foot of wall. The wall dimensions should be minimized to generate economy. Do not use a key to resist sliding. Use Rankine's earth pressure coefficients. A- Using the figure to the right, provide the dimensions to your wall below. A = B = C = в D= E = F = D. F Cost per foot of wall = $ E
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