1. Describe the purpose of soil stabilization and discuss at least three methods of achieving soil stabilization. 2. How does soil stabilization affect highway construction 3. How is track modulus expressed? State the factors affecting it and give the values of at least one of these factors for the tracks in our country.
Q: Q1 (a)Describe the term DESIGN VEHICLE. Briefly explain the factors that influence DESIGN VEHICLE…
A: 1(a). Design vehicle:-any vehicle which is designed to fulfil the needs of people and provide safe…
Q: Following table shows the prediction in the traffic of the road for a design period. Which one is…
A:
Q: Explain the importance of Traffic Impact Assessment.
A:
Q: A grassy drainage area is paved with asphalt. What happens to the time of concentration? 1.…
A: By paving the drainage area with asphalt, the time of concentration will decrease, since the water…
Q: II. Identification. Identify the following terms 1. a little covered opening in a floor, pavement,…
A: It is asked to identify the terms for given explanation
Q: K factor represents proportion of AADT occurring during the ..... ..........
A: AADT is mainly the average daily traffic in the middle of the year dealing with the number of road…
Q: Suppose a road passes through a reclaimed land and an existing land, what is the main concern…
A: The process of making lands suitable for more intensive use such as drainage , cultivation ,…
Q: Q: In your opinion as a (roads & bridges engineer) to design high traffic areas or urban. what is…
A: The pavement in transportation engineering is categorized as flexible pavement and rigid pavement,…
Q: What is percentage of gravel of soil A
A: Given,
Q: A) What are the effects of slums B) how can the formation of slums be prevented.
A: A.) The effects of slums are :- Absence of amenities: The Surrounding area of slums is lacking in…
Q: Q2: Results from a traffic survey required for a planned new flexible pavement construction revealed…
A: The design traffic is given by: T=∑TC×Y×P TC=365×F×G×W×10-6 msa Where, TC = Weighted annual traffic…
Q: What is PIEV analysis in Highway engineering?
A:
Q: Listen Which of the following types of roadways would have the lowest values for maximum…
A:
Q: Please solve this question. Subject: Transportation engineering Fillet Radius Problem (Airport…
A: Given ?=50.4 ft, ?=40.5 ft, ?=25.5 ft design group III (110.3 ft wingspan) (Table 6-2) centerline…
Q: 1. Based on Telford, pavement depth is about 25 - 35 cm in two layers. 2. The horizontal and…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: What are the disadvantages of transporting LCQ2 through pipelines?
A: The disadvantages of transporting through pipelines are:
Q: A contractor has compacted the base course for a new road and found that the mean value of the test…
A: We will use formula for density.
Q: A pavement designer has arrived at a design traffic of 100 million standard axles for a newly…
A: Given data- 100 million standard axles,design life=15 years,4500 vehicles/day,traffic growth=8%, To…
Q: What is the role of geological investigations in roads and highways? Elaborate your answer.
A: Each civil engineering project entails the use of the ground and its properties. Geological data is…
Q: Describe the purpose of soil stabilization and discuss at least three methods of achieving soil…
A: Soil stabilization is a procedure in which special soil is proportioned/added or removed or some…
Q: Q1) A rural 4-lane highway is to be built between two towns. Select the binder performance grade to…
A: We have to select a select the binder performance grade to meet the Super pave criteria for a…
Q: Which of the following is not a Marginal Element of Highway? Curbs Gutter Shoulder Guard Rails
A: Gutter is not a marginal Element of road.
Q: Exercise 3: Calculate the design traffic in million standard axle (MSA) and commercial vehicles per…
A:
Q: Q4/ An 6 lane divided highway is to be constructed on a new alignment. Traffic volume forecasts…
A:
Q: Q4/ An 6 lane divided highway is to be constructed on a new alignment. Traffic volume forecasts…
A: Given Design life = 20 yrs , traffic growth= 0.04 AADT= 8000 number of lanes= 6
Q: and strengthen an 39. It is propose existing 2-lane NH section as a divided highway. The existing…
A:
Q: Q4/ An 6 lane divided highway is to be constructed on a new alignment. Traffic volume forecasts…
A:
Q: A civil engineer found that the durability dd of the road, she is laying depends on two functions y1…
A: Introduction- The durability of Concrete is defined as the capacity of concrete to endure weather,…
Q: SN is 5, P,— 4.2, Р,33, design life is 15 years, P,= 3, lane distribution factor = 0.45, AADT = 1600…
A:
Q: How does soil stabilization affect highway construction
A: Soil stabilization is basically a method of treating poor grade soils to get required engineering…
Q: the structural design of highways or track system in the Philip
A: Solution: The Classification of the Highway system in the Philippines is basically a network of the…
Q: explain how soil stabilization affects highway construction.
A: The process of highway construction starts either with filling earthwork or excavation of soil.…
Q: A) Being an engineer, what is the role of soil mechanics in highways and bridges? Justify your…
A:
Q: The truck drives on a horizontal road with a constant velocity. It eventually halted by a set of…
A: SOLUTION: We know kinetic energy (T) T= T1 +T2 T1= Initial K.E T2= Final K.E T1=mv2/2 where m= mass…
Q: Exercise 3: Calculate the design traffic in million standard axle (MSA) and commercial vehicles per…
A: Given:- The annual daily commercial vehicles at least count (May 2021) = 200 The rate of growth = 6%…
Q: A pavement designer has arrived at a design traffic of 100 million standard axles for a newly…
A:
Q: How can we tell what the effect is likely to be without building the freeway?
A: Freeway, highway, or corridor is a long length of road that connects various small or large roads at…
Q: How is the compaction effort varied in the Marshall method and the Superpave method to account for…
A: we need to discuss the compaction efforts in the marshall method and Superpave method to account for…
Q: Describe the purpose of soil stabilization and discuss at east three methods of chieving soil…
A: As per guidelines one need to answer only first question.
Q: What are the types of geological investigation taken up in a highway alignment?
A: The types of geological investigation taken up in a high way alignment are : Weathering : This…
Q: Following table shows the prediction in the traffic of the road for a design period. Which one is…
A: ESAL (Equivalent single axle load ): ESAL is a general term to represent the NO. of repetitions of…
Q: 1. For heavy traffic, which compaction test should be conducted on the subgrade? What is the reason…
A: Brief concept introduction- Compaction test- This test is done to determine the optimum water…
Q: A contractor has compacted the base course for a new road and found that the mean value of the test…
A:
Q: 1. a little covered opening in a floor, pavement, or other surface that allows a person to enter,…
A: The given questions pertain to Transportation Engineering. The same can be answered as follows:
Q: A wheel tractor scraper weighing 50 tonne is being operated on a haul road with a tire penetration…
A: Given: The wheel tractor scraper is 50 tons. The penetration of the tire is 5 cm. The slope is 3%.
Q: (b) The road embankment will be constructed on soft soil. Since the short-term stability is more…
A: Penetration Tests: The tests involve the measurement of the resistance to penetration of sampling…
Q: From the traffic counting in 2020, the average commercial vehicle per day is 500 (10% commercial…
A:
Q: Define the Correlation between N60 and Relative Densityof Granular Soil ?
A: The uncorrected N value for a safety hammer (cathead and rope) is thought to be N60. An auto hammer…
Q: why slope/camber of earth roads is higher than concrete pavements
A: The camber of the pavement is the slope given across to the road, and it is the rise given to the…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- A) Being an engineer, what is the role of soil mechanics in highways and bridges? Justify your answerFollowing figure shows the mass-haul diagram for a road project. -Mass-Haul Diagram Volume (m³) 20000 15000 10000 5000 0 -5000 -10000 -15000 -20000 0 500 1000 1500 2000 Distance from the start of the project (m) 2500 O The soil will have to be moved from right towards the left ● Cannot be determined from the given information O The soil will have to be moved from left towards the right. O There will not be any movement of soil. 3000 3500 The section from 1400 m to 1600 m has been identified as a free-haul section. What will be the direction of net soil movement within this free-haul section?1) explain how soil stabilization affects highway construction.
- 12. Soil compaction is important information to be controlled during the execution of geotechnical works. An example of problems caused by poor compaction of materials are permanent deformations such as those observed in the existing pavement between Corumbá and the ports of Santos (SP) and illustrated in Figure 1. In an article published on 02/03/2022 in the newspaper Correio do Estado (https://correiodoestado.com.br/cidades/excesso-de-peso-faz-da-br262-uma-rodovia-de-alto-risco/397089) states that "in this region, the base of the landfill is fragile due to account of the inappropriate material used when building the road in the 1980s. Inadequate compaction also caused erosion problems (Figure 2) on the wall built by the United States on the border with Mexico, as published on the official website of the United States Homeland Security at 01/30/2021 (https://www.dhs.gov/news/2021/04/30/dhs- announces-steps-protect-border-communities-wall-construction). Figure 1. Surface sinking…b) The results of a grading test on a sample of lateritic gravel intended for the sub-base course of a road project are shown below. The Atterberg limit tests gave a liquid limit of 42 and a Plastic Limit of 20. Table 1 for Question 1 Size 37.10 19.00 6.70 3.18 1.18 0.425 0.300 | 0.212 0.075 Percentage passing (%) Plot the grading curve 100.00 91.82 46.17 33.88 28.99 17.43 15.82 14.22 11.72 i) ii) Determine with clear reasons whether the material meets the minimum requirements of the index properties for the sub-base course in accordance with the GHA Specification for T2. What will be your recommendation for using the material? iii)Q1) A. Briefly describe the following: - 1. Under what conditions would you prefer borrowing new material from a borrow pit for highway embankment over using material excavated from an adjacent section of the road?
- 1. The results of a grading test on a sample of lateritic gravel intended for the sub-base course of a road project are shown below. The Atterberg limit tests gave a liquid limit of 42 and a Plastic Limit of 20. Table 1 for Question 1 Size 37.10 19.00 6.70 3.18 1.18 0.425 0.300 0.212 0.075 Percentage passing (%) Plot the grading curve 100.00 91.82 46.17 33.88 28.99 17.43 15.82 14.22 11.72 i) 2. Part of the results of compaction for a CBR test is shown in Table 2 Table 2 Part of CBR test results SOAKED CBR TEST RESULTS SUB BASE 1 Mould No. A2 No. of blows per layer Wet sample + Mould (g) Mass of Mould 10 12,000 7,500 Mass of wet sample Volume of Mould 2115 Bulk density (g/cc) Test 1 2 Container No. E4 B5 87.23 Wet sample + container (g) Dry sample + container (g) Mass of container 81.42 83.82 78.66 14.46 14.22 Mass of water Mass of dry sample Water content Average water content Dry density i) ii) Compute the dry density and the void ratio Calculate the degree of saturation and porosity…A 7000 meters long and 8 meters wide road is to be constructed in a remote region. Cut and fill are necessary where there is a poor subgrade soil. Four bulldozers excavated the poor subgrade soils. The dimensions of the excavated trench were 0.8 m deep by 10 meter wide and 3.5 kilometers long. The road will have 100 mm aggregate base and 50 mm of asphalt thickness. A bulldozer displaced 115 m3\day, at a rate of 100 cedis per day. A laterite soil will be used in the fill operation. The fill operation will need a grader, a vibratory roller and a water truck for 20 days each at a cost of 130 cedis, 138 cedis and 68 cedis respectively. Daily labor rates for this excavation operation is a foreman, 30 cedis, five laborers, 15 cedis each. Truck driver, 21 Cedis and grade checker, 26 Cedis. Daily labor rates for the fill operations are the same as the excavation rates. One forman, ten laborers and a truck driver will be employed for the fill operations. Grading and asphalt laying will…The following figure shows a section of road. During road construction, the fill material has been used obove a natural soil and a thin soft clay layer. Then the fill material has been compacted untill road level. After raining, a failure took place in the road so the section would be unstable. This road is very crowded and should be repaired as soon as posible. What is your solution to improve it? Explain with detail that why you select this method. Failure line River Compacted fill Natural soil Road Soft clay layer
- (b) The road embankment will be constructed on soft soil. Since the short-term stabilityis more critical than the long-term stability, you, as a geotechnical engineer, arerequired to propose and discuss the related laboratory testing to be performed inorder to analyse the short-term stability of road embankments ?A 7000 meters long and 8 meters wide road is to be constructed in a remote region. Cut and fill are necessary where there is a poor subgrade soil. Four bulldozers excavated the poor subgrade soils. The dimensions of the excavated trench were 0.8 m deep by 10 meter wide and 3.5 kilometers long. The road will have 100 mm aggregate base and 50 mm of asphalt thickness. A bulldozer displaced 115 m \day, at a rate of 100 cedis per day. A laterite soil will be used in the fill operation. The fill operation will need a grader, a vibratory roller and a water truck for 20 days each at a cost of 130 cedis, 138 cedis and 68 cedis respectively. Daily labor rates for this excavation operation is a foreman, 30 cedis, five laborers, 15 cedis each. Truck driver, 21 Cedis and grade checker, 26 Cedis. Daily labor rates for the fill operations are the same as the excavation rates. One forman, ten laborers and a truck driver will be employed for the fill operations. Grading and asphalt laying will require:…Road The most potential mass-wasting hazard exist here is Select one: Oa. slump O b. rock fall O c avalanche Od rock slide O e creep