The undisturbed soil at a given borrow pit is found to have the following properties: w = 15%; y = 19.1 kN/m³; G, = 2.70. The soil from this borrow is to be used to construct a rolled fill having a finished volume of 38,500 m. The soil is excavated by means of a shovel and dumped onto trucks having a capacity of 4.80 m³ each. When loaded to capacity, these trucks are found to contain, on average, a net weight of soil and water equal to 72.7 kN. In the construction process, the trucks dump their load on the fill, the material is spread and broken up, after which a sprinkler adds water until the moisture content is equal to 18%. The soil and water are thoroughly mixed by a disc (or similar equipment) and then compacted until the dry unit weight is equal to 17.3 kN/m?.
The undisturbed soil at a given borrow pit is found to have the following properties: w = 15%; y = 19.1 kN/m³; G, = 2.70. The soil from this borrow is to be used to construct a rolled fill having a finished volume of 38,500 m. The soil is excavated by means of a shovel and dumped onto trucks having a capacity of 4.80 m³ each. When loaded to capacity, these trucks are found to contain, on average, a net weight of soil and water equal to 72.7 kN. In the construction process, the trucks dump their load on the fill, the material is spread and broken up, after which a sprinkler adds water until the moisture content is equal to 18%. The soil and water are thoroughly mixed by a disc (or similar equipment) and then compacted until the dry unit weight is equal to 17.3 kN/m?.
Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter5: Soil Improvement And Ground Modification
Section: Chapter Questions
Problem 5.5P
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Question
What should be the volume of the pit that remains in the
borrow area after all the material required for the fill has
been removed?
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