The soil borrow material to be used to construct a highway embankment has a wet unit weight of 15.4 kN/m³, a water content of 9%, and the specific gravity of the soil solids is 2.67. The specifications require that the soil be placed in the fill so that the dry unit weight is 17.9 kN/m³ and the water content be held to 20%. a. How many cubic meters of borrow are required to construct an embankment having a 612, 000-m³ net section volume? b. How many gallons of water must be added per cubic meter of borrow material assuming no loss by evaporation? c. If the compacted fill becomes saturated at constant volume, what will be the water content and unit weight?

The soil borrow material to be used to construct a highway embankment has a wet unit weight of 15.4 kN/m³, a water content of 9%, and the specific gravity of the soil solids is 2.67. The specifications require that the soil be placed in the fill so that the dry unit weight is 17.9 kN/m³ and the water content be held to 20%. a. How many cubic meters of borrow are required to construct an embankment having a 612, 000-m³ net section volume? b. How many gallons of water must be added per cubic meter of borrow material assuming no loss by evaporation? c. If the compacted fill becomes saturated at constant volume, what will be the water content and unit weight?

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter16: Soil Improvement And Ground Modification

Section: Chapter Questions

Problem 16.12P

See similar textbooks

Similar questions

Problem 3: A proposed embankment fill requires 7500 m³ of compacted soil. The void ratio of the compacted fill is specified as 0.7. Soil can be transported from one of the four borrow pits, 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 are provided in the table. a. Determine the volume of each borrow pit soil required to meet the specification of the embankment site. b. Make the necessary calculations to select the borrow pit which would be most cost-effective. Borrow pit Void ratio G, Cost ($/m³) I 0.85 2.66 11 II 0.92 2.69 8 III 1.21 2.71 9. IV 0.89 2.73 10
The soil borrow material to be used to construct a highway embankmenthas a density of 1570 kg/m3, a water content of 6%, and the relative density of soilsolids is 2.65 . The specifications require the soil to be compacted to a dry density of1794 kg/m3 and the water content held to 13%.a. How many BCM are required to construct a 176,306 m3 embankment?b. How many liters of water must be added to the borrow material, on a cubic meterbasis, assuming no loss by evaporation?c. If the compacted embankment becomes saturated at constant volume, what will bethe water content and the density of the soil?
3. An embankment with a total volume of 30,000m3 is to be constructed as part of a highway project. The soil to be used in the embankment will come from a borrow pit where the average moist unit weight and water content of the soil is 17.6kN/m3 and 13% respectively. Assuming that the soil will be compacted to a dry unit weight of 18.2kN/m3 at a moisture content of 16%. a. Compute the weight of dry soil required. b. Compute the volume of borrow required. c. Compute the total quantity of water in cubic meters that must be added to the fill during compaction to bring about a desired final moisture content of 16%.
A proposed earth embankment requires 50,000 cubic meters of soil. The soil will be compacted to a void ratio of 0.75 when it is placed in the embankment. There are four available borrow pits, designated A, B, C, and D. The void ratio of the soil in each pit and the cost per cubic meter for moving the soil to the proposed construction site are shown as follows: Determine which borrow pit is the most economical.
The embankment for a highway 5097 ft long, 104 ft wide and 6 ft in compacted thickness is to be constructed from a sandy soil trucked from a borrow pit. The water content of the sandy soil in the borrow pit is 6.748% and its porosity is 0.422. The specification requires the embankment be compacted to a dry unit weight of 122.874 lb/ft3. The specific gravity is 2.588. Determine the following: a. Total weight of the soil solids, kips. b. Total volume of the soil required from the borrow pit, ft3. c. Weight of water to be added per foot length of the embankment to reach 10% moisture content, lb.Round off answers to three decimal places.
The embankment for a highway 5097 ft long, 104 ft wide and 6 ft in compacted thickness is to be constructed from a sandy soil trucked from a borrow pit. The water content of the sandy soil in the borrow pit is 6.748% and its porosity is 0.422. The specification requires the embankment be compacted to a dry unit weight of 122.874 lb/ft3. The specific gravity is 2.588. Determine the following: a. Total weight of the soil solids, kips. b. Total volume of the soil required from the borrow pit, ft3. c. Weight of water to be added per foot length of the embankment to reach 10% moisture content, lb.
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.
A proposed earth embankment requires 50,000 cubic meters of soil. The soil will be compacted to a void ratio of 0.75 when it is placed in the embankment. There are four available borrow pits, designated A, B, C, and D. The void ratio of the soil in each pit and the cost per cubic meter for moving the soil to the proposed construction site are shown as follows: Borrow Pit Void Ratio Cost (PhP/m³) A 0.85 450 1.90 250 C 0.95 350 0.70 550 Determine which borrow pit is the most economical.
For constructing an embankment, the soil is transported from a borrow area using a truck which can carry 6m³ of soil at a time. The details are as follows. Borrow Truck Field Property area (loose) (compacted) Bulk density 1.66 1.15 1.82oile (g/cc) Water 8 14 content (%) The quantity of soil to be excavated from the borrow pit, in m3 for a compacted earth fill of 100 m3 is
A proposed earth embankment requires 60,000 cubic meters of soil. The soil will be compacted to a void ratio of 0.85. Two borrow pits designated as A and B are available near the site. The void ratio of the soil in each pit and the estimated cost per cubic meter for moving the soil to the site are as shown below. Pit Void Ratio Cost ($/m3) A 1.10 5.00 B 1.80 3.70 Which will have the lowest cost to move and be the most economical to use?
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
WA road section is 1200 m long. The cut and fill areas are to be computed between the station as shown in table below, determine the net volume of cut and fill between the stations, if you know that the material in fill will be consolidate by 12 percent after compaction. Given 100 m between each station. Station 0+00 2+00 4+00 6+00 8+00 10+00 12+00 1.0 5.0 Cut Fill 4.0 2.6 7.0 2.0 9.5 0.5 2.0 End Area (m2) 3.0 8.0 6.0