a. A new road 18 m wide is under construction in flat terrain. Excavation to the sub-grade istaken to a depth of 600 mm below the ground surface. In order to stockpile the excavatedmaterial for later re-use you are required to stockpile the fill in two conical stockpiles. Theexcavated material is common fill and is dry with an angle of repose of 31° and a swellfactor of 27%. Determine the size of each conical stockpile required for an excavation thatis 40 m in length for the full width of the new road.b. If each stockpile is limited to a maximum height of 3m, what length of roadway should theexcavated?

Answered: Image /qna-images/answer/f488c5a0-587b-445f-b131-208862b19239.jpg

Answered: a. A new road 18 m wide is under…

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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An approach road for a bridge needs 60000 m3 of soil compacted to a void ratio of 0.7. There are two borrow pits A and B from where the required soil can be taken and transported to the site. The borrow pit A has void ratio 0.85 and borrow pit B has void ratio 0.95. If the cost of excavation of soiland transportation is Rs. 20/10 m3for area A and Rs. 22/10 m3for area B, which of the borrow area is more economical? G=2.67
You have been hired as a project Engineer for a development company in Namugongo to build 610 housing units. Since the original ground is low, you need fill material to raise the ground level. Your estimated fill requirements are 700,000m3 with a void ratio of 0.46. the insitu material at the borrow pit has a void ratio of 0.39 where as the material dumped in trucks has a void ration of 0.71. How many trucks will you need, if each truck carries 10m3? i will need all the work outs in full and well explained
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
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?
3. Three boreholes (BH) along a proposed road intersection are shown in Figure la and b. The soils in each borehole were classified using ASTM-CS. Sketch a soil profile along the center line. BH ВН 2 BH 3 100 m 100 m (a) Plan El: 100.2 El: 99.5 E1: 102.7 SP ML CH 10 SP-SM 15 - GP-GM ВН 2 ВН З 20 ВН 1 (b) Borehole soil Figure 1 Depth (m)
= Construction of an embankment needs 400,000 yd3 of fill. The fill should be compacted to at least 88% of the standard Proctor maximum dry density obtained in the lab, which is gammad_d,max : 128 pcf, but the contractor plans to exceed that by 2% to ensure passing quality control. The fill may be obtained from two companies (A and B) with the following profiles. Company A Distance from borrow pit to embankment: 25 miles Cost of haul ($/yd3-mile): 0.50 Cost of fill material ($/yd3): 1.50 Borrow soil moisture content: 16% Specific gravity of solids: 2.70 Degree of saturation: 70% Company B Distance from borrow pit to embankment: 30 miles Cost of haul ($/yd3-mile): 0.40 Cost of fill material ($/yd3): 1.40 Borrow soil moisture content: 18% Specific gravity of solids: 2.65 Degree of saturation: 58% The total cost of haulage by company A (million $) The total cost of haulage by company B (million $) The relative compaction, CR, should account for the contractor's plan to exceed the minimum…
(c) Giver the end area of cut and fill of soil as in Table Q4(c). If the material bulks after excavation about 10% and shrink 12%. Given, distance between chainage is 100 m. Draw the mass haul diagram and estimate how much excess cut or fill is required.
.(a)Propose the basic concept of penetration test of bitumen. Discuss the penetration value used in different areas and its limitation. .(b) Does the penetration test value has any impact on other bitumen tests values? If yes , explain
The cross section at station 2+60 has a cut area of 9 ft² and a fill area of 4 ft² and the cross section at station 3+00 has a cut area of 7 ft² and a fill area of 8 ft². What is the volume (yd) of fill between these stations? Assume no swell or compaction. Round to the nearest hundredths. Response Feedback: A V=L- fill +A 54 2+60 3+00
Q1.(b) Does the penetration test value has any impact on other bitumen tests values? If yes , explain.
Why does the smooth-drum rollers are not well suited for compacting earth fill?
Q5-A proposed earth dam requires 7500 m³ of compacted soil with relative density of 94%, maximum void ratio of 0.73, minimum void ratio of 0.4 and specific gravity (Gs)= 2.67. Two borrow pits are available as described in the following table. Choose the best borrow pit with a minimum cost. Borrow Pit A B Degree of saturation % 82 100 Moisture content % 18.43 24.34 Cost ($/m³) 10 5

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