An embankment is to be constructed for a certain project, as such filling materials are required to be excavated from borrow pits. The moist unit weight of the undisturbed soil is 20 kN/m3 and its water content is 10%. In order to build a 5 m high embankment with top width 2 m and side slopes 1:1, estimate the quantity of earth

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter3: Weight–volume Relationships

Section: Chapter Questions

Problem 3.24P

See similar textbooks

Related questions

Q: Compute the vertical pressure at a depth of 6 m below the ground surface at the following locations:…

A: Given data Top width = 8 m, height = 4 m, side slopes= I V : 1.5 Hor unit weight of soil, γ=21kN/m3…

Q: QUESTION 8 The slope factor for bad soil is: O 1:3 O 1:1 O 1:2 None of the answers are correct…

A: Question 8 The slope factor for bad soil is 1:1 because the soil cannot stand it the slope is more…

Q: The concrete dam shown is very long in the direction normal to the figure. The permeable soil under…

A: It is asked to find the flow rate under the dam.

Q: An embankment for a highway 30m wide and 1.5m in a compacted thickness is to be constructed from a…

A: solutionGiven dry unit weight γdry=18 KNm3water content w=11%=0.11specific gravity G=2.7void ratio…

Q: .A layer of saturated clay is 10 m thick, the lower boundary being impermeable; an embankment is to…

Q: PROBLEM No. 2 Void Ratio Soil excavated from a borrow area is being used to construct an embankment.…

Q: QI- An embankment is to be constructed over a layer of soft clay 16 m thick as shown in figure 1.…

Q: The velocity of a trapezoidal canal with a bottom width of 3.2 m and side slopes of 3H:2V is 2.2…

A: To Determine a. Flow rate, Q b. Roughness coefficient, n c. Shearing stress at the boundary of the…

Q: A soil profile consists of 6m thick clay soil over 3m thick sand soil, which in turn lies over a…

A: using concept of effective stress

Q: An embankment is to be constructed with a granular soil (bulk unit weight = 20 kN/m³) on a saturated…

Q: (c) A clay layer of 10 m thick with an average bulk unit weight y = 18.5 kN/m³ overlies a sand…

Q: 1. A 4.0 meter high embankment will be placed over a saturated soil foundation that is 13.4 meters…

Q: A rectangular channel 5.8 m wide by 1.4 m deep was laid to have a hydraulic slope of 0.001. Using n…

A: Width,B=5.8 m Depth,h=1.4 m Slope,S=0.001 n=0.013 Manning's formula of discharge- Q=A×1n×R23×S12…

Q: 4. If a soil has a submerged unit weight of 10.69 kN/m³, what will be its critical hydraulic…

A: Given data: A soil has a submerged unit weight, Y'=10.69 kNm3 Yw=9.81 kNm3 (standard value)

Q: Example 3: A flow net for flow around a single row of sheet piles in a permeable soil layer is shown…

A: given data K=5×10-3cm/secfrom images of question total head loss=5.6-2.2=3.4mno of drops Nd=6no of…

Q: A half-closed clay layer is 8m thick and it can be assumed that the coefficients of consolidation in…

A: Given data coefficients of consolidation in both the vertical and horizontal directions are the same…

Q: B) ) A river bed consists of sand layer overlying impermeable rock; the depth of water is in river…

Q: An unsupported excavation is made to the maximum possible depth in a pure clay soil having density…

Q: 4. What is the culvert bottom slope denoted as? a) sl b) SL c) So d) sL

A: The culvert bottom slope denoted as c) So Other , options doesn't exist. Correct option is C

Q: What is the cross-sectional area of the Grit chamber (rectangular) in m² required, if the average…

A: Given data: Average daily flow rate = 600 m3d =60024×60=0.4167…

Q: Refer to Problem 9.6. It is required to make an open excava- tion of 18 ft in the saturated clay. To…

Q: The following is a sketch of the proposed embankment, calculate the addition of vertical stress…

Q: the number of trips of each truck

A: Unit weight: -It is defined as the weight per unit volume of a given substance and also known as…

Q: It is required to deepen a lake to 275m over an area of 30 m x 40 m. There is water to a depth of…

A: Given: A lake has to be deepened to 2.75m over an area of 30 m x 40 m. There is water to a…

Q: An excavation has to be made in a 10 m deep clay stratum underlain by a bed of sand. In a trial…

Q: A soil profile consists of 6m thick clay soil over 3m thick sand soil, which in turn lies over a…

A: effective stress= total vertical stress- pore pressure

Q: A wide excavation is made on a site which has the following soil conditions: 0-2 m Gravel:…

A: Given data - For - 0-2 m Gravel: gsat = 21.8 kN/m3, gdry = 18.5…

Q: (a) A pit of 6.4 m deep is to be excavated in a fine sand stratum completely saturated up to the…

A: Given- excavation depth=6.4 msaturated unit weight γsat=20.3 kN/m3FOS=1.5G=2.7unit weight of water…

Q: embankment consists of clay fill for which c′ = 25 kN/m2 and φ = 27° (from consolidated undrained…

Q: 2.1.Q.1: Determine the total vertical stress, pore water pressure, and the effective stress of the…

Q: 3.24 Refer to the 15-ft high embankment shown in Figure 3.8. Embankments are generally constructed…

A: Given information:

Q: A 10 m clay stratum is overlaying a rock stratum. If water table is at the ground surface, calculate…

Q: An embankment is being built of a soil whose unit weight is equal to 18 kN/m³. The pore pressure…

A: given values- Pore pressure parameters-A=0.6B=0.8change in height 6 m to 9 m

Q: In a clayey soil having 50 kN/m² as unit cohesion and 18 kN/m³ as unit weight, an excavation is made…

A: Given data- Cohesion C=50 kN/m2Unit weight γ=18 kN/m3Taylor's Stability number Sn=0.261To…

Q: A stiff clay layer of 11.02 m thickness with a unit weight of 17.52 kN/m³ overlies a sand layer. The…

A: Given: The thickness is 11.02 m. The unit weight is 17.52 kN/m3. The depth of excavation is 8.52 m.

Q: Solve with complete solutions and explain. An embankment for a highway 30 m wide and 1.5 m in…

Q: A soil profile consists of 6 m thick clay soil over 3 m thick sand soil, which in turn lies over a…

A: (a) Before the construction of the embankment; Calculate the total stress at clay ; Total…

Q: A rectangular channel 5.8 m wide by 1.4 m deep was laid to have a hydraulic slope of 0.001. Using n…

Q: Calculate the net cut/fill for Station A, B, C and D, and draw the Mass Diagram Ordinate of the…

A: use ordinate method to calculate net cut/fill

Q: An embankment for road traffic is required to be constructed with the following dimensions : Top…

A: Solution: q= unit weight x depth=21x4 =84 kN/m2 Vertical stress= q x Iz z=6m a=8m b=20m with 1V:1.5H…

Q: The soil profile at a site consists of 3 m of sand (ym = 17.5 kN/m³, ysat = 18.9 kN/m³) underlain by…

Q: A 3 m high embankment is to be constructed as shown in the figure. If the unit weight of soil used…

A: Given data A 3m high embankment unit weight of soil used in embankment = 19KN/m3 we have to…

Q: An unsupported excavation is made to the maximum possible depth in a clay soil having Y, = 18…

A: Given data- Clay soil-unit weight γ=18 KN/m3cohesion C=100 kN/m2Angle of friction-ϕ=30oTo…

Q: Determine the value of the critical hydraulic gradient if the specific gravity of the soil is (Gs =)…

A: Given: Specific gravity, Gs = 2.67 Void ratio, e = 0.45 Hydraulic gradient, i = 0.46

Q: An embankment consists of clay fill for which c=25 kPa and angle of internal friction is 260 9from…

A: Given:- C=25 kPaϕ=26oΥ=18.64 KN/m3Z=20 m To find:- Stress at a depth of 20 m Free body diagram

Q: What is the area of cut in square metre? what is the average cut in metres? what is the volume of…

A: Grid Method is used to find the volume of cut and fill in earthwork. In grid method we divide the…

Q: An excavation is to be made in a layer of clay which is 10 m thick and underlain by a sandstone…

A: Given: The thickness of clay layer is 10 m. The saturated unit weight of clay is 21 kN/m3. The water…

Q: A river bed consists of a layer of sand 8.25 m thick overlying impermeable rock; the depth of water…

A: (a) Draw the flow net for the seepage flow. From the figure, the number of flow lines (Nf) is 6 and…

Q: B- Calculate the average permeability of a formation that consists of four beds in series, assuming:…

Question

100%

An embankment is to be constructed for a certain project, as such filling materials are
required to be excavated from borrow pits. The moist unit weight of the undisturbed soil is 20
kN/m3 and its water content is 10%. In order to build a 5 m high embankment with top width
2 m and side slopes 1:1, estimate the quantity of earth required to be excavated per meter
length of embankment. The dry unit weight required in the embankment is 17 kN/m3 with a
moisture content of 12%. Assume the specific gravity of solids as 2.65.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the ff; (a) Dry unit weight of borrow pit material.(b) Volume of the finished embankment.(c) Volume of borrow pit soil required.
An embankment for a highway 35m wide and 1.2m 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 15% and its void ratio is 0.72. the specification requires the embankment to be compacted to a dry unit weight of 18.2 kN/m3. Length of embankment is 2.5km. Assuming G = 2.7, determine the volume of borrow material required.
An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the following;(d) Volume of the borrow pit material required considering swell. (e) The number of truckloads of sandy soil required for the construction. The full capacity of each truck is 22.2m3, and local government regulations require a maximum capacity of 90%. (f) The weight of dry soil in one truckload.
An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the ff; (g) The weight of water per truckload of sandy soil. (h) The degree of saturation of the sandy soil in situ. The dry density of sand with a porosity of 0.387 is 1600 kg/m3. Find the following; (i) The void ratio of the soil. (j) The specific gravity of the soil solids.
An embankment for a highway 30 m wide and 1.3 m in compacted thickness is to be constructed from a sandy soil trucked from a borrow pit. The water content, w, of the sandy soil in the borrow pit is 17% and its void ratio, e, is 0.75. The specification requires the embankment be compacted to a dry unit weight of 19 kN/m^3. Determine, for 3 km length of embankment. Assume Gs = 2.7 a) Compute the volume (m³) of borrow material required b) solve the cost of fill if the earth fill from borrow site costs Pho 150/m³ c) calculate the volume (m³) of borrow material required is the specification required a void ratio of 0.20
An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the ff;(d) Volume of the borrow pit material required considering swell. (e) The number of truckloads of sandy soil required for the construction. The full capacity of each truck is 22.2m3, and local government regulations require a maximum capacity of 90%. (f) The weight of dry soil in one truckload.
The excavated material has a wet unit weight of 1,510 kg/ cu metre and a dry unit weight of 1,398 cu metre. The material will be used to build an embankment. According to specification, the dry unit weight of the compacted material should be 1,826 kg/ cu metre, with a water content of 12%. The net section of the embankment is 86,000 cu metre. What is the moisture content of the excavated soil? How many cu metre of excavation will be required to construct the embankment? Do we need to add water or not? If yes, what’s the volume of added water?
A rectangular channel 5.8 m wide by 1.4 m deep was laid to have a hydraulic slope of 0.001. Using n = 0.013. (a) What is its yield in cubic meter per second? (b) What savings in earth excavation could be realized by using most economical proportion? (c) What savings in lining per meter length could be realized by using most economical proportion?
A 4 m high embankment with a top width of 5 m and side slopes of 1:1, has to be constructed by compacting soil from a nearby borrow pit. The unit weight and natural moisture content of the soil are 1.8 tons/m3 and 8% respectively. Determine the quantity of water to be added to it for every kilometer of finished embankment, if the required dry density and moisture content of the embankment soil be 1.82 g/cm3 and 18%. Given G= 2.70.
A rectangular channel 5.8 m wide by 1.4 m deep was laid to have a hydraulic slope of 0.001. Using n = 0.013. 1. What is its yield in cubic meter per second? 2. What savings in earth excavation could be realized by using most economical proportion? 3. What savings in lining per meter length could be realized by using most economical proportion?
A trapezoidal embankment for a highway of 30m wide at the top,1.5m in compacted thickness with a side slope of 1:3 is to be constructed from a silty sandy GRAVEL trucked from a borrow pit. The water content in the borrow pit is 15% and its void ratio is 0.69. Truck of 15m3 capacity will be used to carry the soil from the borrow pit at the void ratio of 0.80 and at the same moisture content as the borrow pit materials. The specification requires the embankment to be compacted at a dry unit weight of 18kN/m3. Specific gravity of the soil is 2.7 and unit weight of water is 9.8kN/m3. Determine, for 500m length of embankment, the number of trips of each truck assuming 20 trucks are allocated for this activity.
An embankment for road traffic is required to be constructed with the following dimensions : Top width = 8 m, height = 4 m, side slopes= I V : 1.5 Hor The unit weight of soil under the worst condition is 21 kN/m3. The surcharge load on the road surface may be taken as 50 kN/m2. Compute the vertical pressure at a depth of 6 m below the ground surface at the following locations: (i) On the central longitudinal plane of the embankment, (ii) Below the toes of the embankment.