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In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upon
- a)CBR value of soil only
- b)CBR value of soil and magnitude of wheel load
- c)CBR value of soil and number of commercial vehicles per day
- d)CBR value of soil and cumulative standard axle loads
Correct answer is option 'C'. Can you explain this answer?
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In the CBR design method recommended by the IRC for the design of flex...
CBR Design Method for Flexible Pavement
The California Bearing Ratio (CBR) design method is recommended by the Indian Road Congress (IRC) for the design of flexible pavements. It is a widely used method for the design of flexible pavements in India.
Factors affecting the total thickness of flexible pavement
The total thickness of the flexible pavement depends upon various factors such as CBR value of soil, magnitude of wheel load, number of commercial vehicles per day, and cumulative standard axle loads. However, the most significant factors are:
1. CBR value of soil
CBR value of soil is the most important factor affecting the total thickness of flexible pavement. It is a measure of the strength of the soil and its ability to bear the load. The higher the CBR value of the soil, the thinner the pavement required to carry the same load.
2. Number of commercial vehicles per day
The number of commercial vehicles per day is another important factor affecting the total thickness of the flexible pavement. The more the number of commercial vehicles, the thicker the pavement required to carry the load.
Calculation of total thickness of flexible pavement
The total thickness of the flexible pavement is calculated using the following formula:
Total thickness of pavement = (K × W) + (K1 × CBR)
Where,
K = a constant depending upon the subgrade condition
W = wheel load in kN
K1 = a constant depending upon the number of commercial vehicles per day
CBR = California Bearing Ratio of soil
Conclusion
In conclusion, the CBR design method for flexible pavement recommends the total thickness of pavement based on the CBR value of soil and the number of commercial vehicles per day. It is important to consider all the factors affecting the pavement design to ensure the longevity and durability of the pavement.
The California Bearing Ratio (CBR) design method is recommended by the Indian Road Congress (IRC) for the design of flexible pavements. It is a widely used method for the design of flexible pavements in India.
Factors affecting the total thickness of flexible pavement
The total thickness of the flexible pavement depends upon various factors such as CBR value of soil, magnitude of wheel load, number of commercial vehicles per day, and cumulative standard axle loads. However, the most significant factors are:
1. CBR value of soil
CBR value of soil is the most important factor affecting the total thickness of flexible pavement. It is a measure of the strength of the soil and its ability to bear the load. The higher the CBR value of the soil, the thinner the pavement required to carry the same load.
2. Number of commercial vehicles per day
The number of commercial vehicles per day is another important factor affecting the total thickness of the flexible pavement. The more the number of commercial vehicles, the thicker the pavement required to carry the load.
Calculation of total thickness of flexible pavement
The total thickness of the flexible pavement is calculated using the following formula:
Total thickness of pavement = (K × W) + (K1 × CBR)
Where,
K = a constant depending upon the subgrade condition
W = wheel load in kN
K1 = a constant depending upon the number of commercial vehicles per day
CBR = California Bearing Ratio of soil
Conclusion
In conclusion, the CBR design method for flexible pavement recommends the total thickness of pavement based on the CBR value of soil and the number of commercial vehicles per day. It is important to consider all the factors affecting the pavement design to ensure the longevity and durability of the pavement.
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In the CBR design method recommended by the IRC for the design of flex...
D should be the correct answer.
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In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer?
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In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer?.
In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upona)CBR value of soil onlyb)CBR value of soil and magnitude of wheel loadc)CBR value of soil and number of commercial vehicles per dayd)CBR value of soil and cumulative standard axle loadsCorrect answer is option 'C'. Can you explain this answer?.
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