SITUATION 3For constructing an embankment, the soil is transported froma borrow pit area using a truck which can carry seven cubicmeters of soil at a time.PropertyBorrow AreaTruckCompacted FieldBulk Density (g/cc)1.6521.1451.815Water Content (8)8.126.0314.11Determine the quantity of soil to be excavated from theborrow pit, in ft³ for a compacted earth fill of 120 m³.8.9. Compute for the number of truck loads of soil required toobtain 102 m3 of compacted fill.

Principle to solve the problem: Volume of solid borrowed from the borrow pit = volume of solid of…

Answered: For constructing an embankment, the…

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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Q1. Answer the followinga) Convert 1700LCM of common earth to a volume in compacted measure (CCM). b) Calculate the volume of sand and gravel (in LCM) needed to fill a ditch that is 2km x 3m x 1.5m. The sand and gravel will be compacted.
A proposed embankment fill required 8000 m3 of compacted soil. The void ratio of the compacted fill is specified to be 0.6. Four available borrow pits are shown below along with the void ratios of the soil and the cost per cubic meter for moving the soil to the proposed construction site. Make the necessary calculations to select the pit from which the soil should be brought to minimize the cost. Assume Gs to be the same for all borrow-pit soil.
the excavated soil? 5.9 A proposed embankment fill requires 3500 m' of compacted soil. The void ratio of the compacted fill is specified as 0.65. Four borrow pits are available, as described in the following table, which lists the respective void ratios of the soil and the cost per cubic meter for moving the soil to the proposed construction site. Make the necessary calculations to select the y not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). I materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. ction from which the soil should be bought to minimize the cost. Assume G, pe the same at all pits. Borrow pit Void ratio Cost (S/m) 0.85 1.2 0.95 10 0.75 ABCD
30. The proposed embankment fill requires 8000m³of compacted soil. The void ratio of the compacted fill is specified as 0.70. Four borrow pits are available as described in the following table, which list the respective void ratios of the soil and the cost per cubic meter for moving the soil to the proposed construction site. Assume that the specific gravity is the same at all pits, which among the pits should be bought to minimize the cost? Borrow Pit Void Ratio Cost (P/m³) A 0.82 400 B 0.9 450 1.1 250 D 0.78 600
The particle size distribution curves for three soils - A, B and C - are shown in Figure Q-2 on page 2. a. Determine the effective size, average particle size, uniformity coefficient and coefficient of curvature for soil B. b. Classify soil A according to ASTM-CS. C. Classify soil C according to the AASHTO system. The Atterberg limits for this soil are LL = 81 and PL = 35. Using sketches and notes, outline the key features of the SPT test.
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Soil is to be excavated from a borrow pit which has a density of 1.75 gm/cc and water content of 12%. The specific gravity of soil particles is 2.7. The soil is compacted so that water content is 18% and dry density is 1.65 gm/cc. For 1000 m³ of soil in fill, estimate (i) quantity of soil to be excavated from the pit in m³, (ii) amount of water to be added.. Also, determine the void ratios of the soil in borrow pit and fill.
Q3/ Plot the grain-size distribution curve for (W7=1000 gm) of soil and the following results of mechanical analysis: Sieve 3/4" 1/2" 3/8" 3/16" #7 #14 # 25 #36 #52 #100 #200 pan NO. Sieve Diameter 19.05 12.5 9.5 4.76 2.411 1.204 0.599 0.422 0.295 0.152 0.075 (mm) Retained Weight 8 40 58 150 130 79 60 22 34 184 42 193 (gm)
Question 2 For shown particle size distributions, find coefficient of uniformity (Cu) and the coefficien curvature (C. )for each soil; BS sieves 63 pm 212am 600um 2mm 6,3mm 20mm 62mm 100 90 so 10 Gravel Fire MedumCoare Fine MedymConrse Fne Medium CoareCoobles 0.01 Clay 10 10 0.001 Particle size (mm) Percentage smallr
A proposed embankment fill requires 7500 m3 of compacted soil. The void ratio of thecompacted fill is specified as 0.7. Soil can be transported from one of the four borrowpits, as described in the following table. The void ratio, specific gravity of soil solids,and the cost per cubic meter for moving the soil to the proposed construction site areprovided in the table.a. Determine the volume of each borrow pit soil required to meet the specification ofthe embankment site.b. Make the necessary calculations to select the borrow pit which would be most costeffective.

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