You've been tasked with deriving a site-specific shrinkage factor for earthwork planning on your firm's current project. You have completed a test pit (shallow excavation of quantifiable volume) in the planned on-site borrow area. The excavated earth was loaded into dump trucks and weighed at a nearby truck scale, to measure the total moist weight of the earth removed from the test pit. The rectangular cuboid-shaped test pit had side dimensions of 10 ft by 6 ft by 3 ft, and contained a total excavated earth moist mass of 10.35 tons. The owner's geotechnical investigation report contains a laboratory test report indicating that the on- site borrow soil will attain a moist unit weight of 130.0 pcf (i.e., lbs/CF), when compacted to the minimum allowable compaction specification. 8. What is the on-site borrow soil's bank unit weight (nearest 1 lbs/BCY)? 9. What is the anticipated % net decrease in volume for the on-site borrow soil in a compacted condition (nearest 0.1%)? 10. If the project requires 1850 BCY of bank excavation, what does that volume represent in terms of compacted embankment volume, to the nearest 1 CCY?

You've been tasked with deriving a site-specific shrinkage factor for earthwork planning on your firm's current project. You have completed a test pit (shallow excavation of quantifiable volume) in the planned on-site borrow area. The excavated earth was loaded into dump trucks and weighed at a nearby truck scale, to measure the total moist weight of the earth removed from the test pit. The rectangular cuboid-shaped test pit had side dimensions of 10 ft by 6 ft by 3 ft, and contained a total excavated earth moist mass of 10.35 tons. The owner's geotechnical investigation report contains a laboratory test report indicating that the on- site borrow soil will attain a moist unit weight of 130.0 pcf (i.e., lbs/CF), when compacted to the minimum allowable compaction specification. 8. What is the on-site borrow soil's bank unit weight (nearest 1 lbs/BCY)? 9. What is the anticipated % net decrease in volume for the on-site borrow soil in a compacted condition (nearest 0.1%)? 10. If the project requires 1850 BCY of bank excavation, what does that volume represent in terms of compacted embankment volume, to the nearest 1 CCY?

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

Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.

Question

You've been tasked with deriving a site-specific shrinkage factor for earthwork planning on your firm's
current project. You have completed a test pit (shallow excavation of quantifiable volume) in the
planned on-site borrow area. The excavated earth was loaded into dump trucks and weighed at a
nearby truck scale, to measure the total moist weight of the earth removed from the test pit. The
rectangular cuboid-shaped test pit had side dimensions of 10 ft by 6 ft by 3 ft, and contained a total
excavated earth moist mass of 10.35 tons.
The owner's geotechnical investigation report contains a laboratory test report indicating that the on-
site borrow soil will attain a moist unit weight of 130.0 pcf (i.e., lbs/CF), when compacted to the
minimum allowable compaction specification.
8. What is the on-site borrow soil's bank unit weight (nearest 1 lbs/BCY)?
9. What is the anticipated % net decrease in volume for the on-site borrow soil in a compacted
condition (nearest 0.1%)?
10. If the project requires 1850 BCY of bank excavation, what does that volume represent in terms
of compacted embankment volume, to the nearest 1 CCY?

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