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A multi-storied building is to be completed over a fine clayey soil within three months. In order to analyze the shear strength of the foundation soil which of the following shear strength test will be most suitable.
- a)Consolidated Undrained Test (CU)
- b)Unconsolidated Undrained Test (UU)
- c)Consolidated Drained Test (CD)
- d)All are equally suitable
Correct answer is option 'B'. Can you explain this answer?
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A multi-storied building is to be completed over a fine clayey soil wi...
The purpose of a UU test is to determine the undrained shear strength of a saturated soil. The UU test consists of applying a cell pressure to the soil sample without drainage of porewater followed by increments of axial stress. The cell pressure is kept constant and the test is completed very quickly because in neither of the two stages—consolidation and shearing—is the excess porewater pressure allowed to drain.
Suitability of UU test: When construction is very fast such as in case of foundation over fine clay.
Suitability of UU test: When construction is very fast such as in case of foundation over fine clay.
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A multi-storied building is to be completed over a fine clayey soil wi...
Introduction:
In order to analyze the shear strength of the foundation soil for a multi-storied building to be completed over a fine clayey soil within three months, the most suitable shear strength test is the Unconsolidated Undrained Test (UU).
Explanation:
The Unconsolidated Undrained Test (UU) is the most suitable test for assessing the shear strength of the foundation soil in this scenario due to the following reasons:
1. Time Constraint:
The UU test is a quick and efficient method for determining the shear strength of cohesive soils. As the construction project has a time constraint of three months, it is important to choose a test that can provide reliable results within a short period. The UU test can be performed relatively quickly, making it an ideal choice for this situation.
2. Fine Clayey Soil:
The UU test is specifically designed for cohesive soils, such as fine clayey soil. This type of soil typically exhibits significant strength changes when subjected to shear stress. The UU test allows for the measurement of undrained shear strength, which is the shear strength of the soil when it is not allowed to drain during the test. This is particularly relevant for clayey soils, as they have low permeability and do not drain easily.
3. Multi-Storied Building:
A multi-storied building imposes significant loads on the foundation soil. Therefore, it is crucial to accurately determine the shear strength of the soil to ensure the stability and safety of the structure. The UU test provides a direct measurement of the undrained shear strength, which is essential for designing the foundation and assessing its stability under the applied loads.
4. Consolidation:
The Consolidated Undrained Test (CU) and Consolidated Drained Test (CD) involve different stages of consolidation of the soil sample. These tests are more suitable for assessing the strength properties of the soil in saturated conditions over a longer time period. Since the project has a time constraint of three months, these tests may not be feasible within the given timeframe.
Therefore, considering the time constraint, the type of soil, and the requirements of the project, the Unconsolidated Undrained Test (UU) is the most suitable shear strength test for analyzing the foundation soil of the multi-storied building over the fine clayey soil.
In order to analyze the shear strength of the foundation soil for a multi-storied building to be completed over a fine clayey soil within three months, the most suitable shear strength test is the Unconsolidated Undrained Test (UU).
Explanation:
The Unconsolidated Undrained Test (UU) is the most suitable test for assessing the shear strength of the foundation soil in this scenario due to the following reasons:
1. Time Constraint:
The UU test is a quick and efficient method for determining the shear strength of cohesive soils. As the construction project has a time constraint of three months, it is important to choose a test that can provide reliable results within a short period. The UU test can be performed relatively quickly, making it an ideal choice for this situation.
2. Fine Clayey Soil:
The UU test is specifically designed for cohesive soils, such as fine clayey soil. This type of soil typically exhibits significant strength changes when subjected to shear stress. The UU test allows for the measurement of undrained shear strength, which is the shear strength of the soil when it is not allowed to drain during the test. This is particularly relevant for clayey soils, as they have low permeability and do not drain easily.
3. Multi-Storied Building:
A multi-storied building imposes significant loads on the foundation soil. Therefore, it is crucial to accurately determine the shear strength of the soil to ensure the stability and safety of the structure. The UU test provides a direct measurement of the undrained shear strength, which is essential for designing the foundation and assessing its stability under the applied loads.
4. Consolidation:
The Consolidated Undrained Test (CU) and Consolidated Drained Test (CD) involve different stages of consolidation of the soil sample. These tests are more suitable for assessing the strength properties of the soil in saturated conditions over a longer time period. Since the project has a time constraint of three months, these tests may not be feasible within the given timeframe.
Therefore, considering the time constraint, the type of soil, and the requirements of the project, the Unconsolidated Undrained Test (UU) is the most suitable shear strength test for analyzing the foundation soil of the multi-storied building over the fine clayey soil.
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A multi-storied building is to be completed over a fine clayey soil within three months. In order to analyze the shear strength of the foundation soil which of the following shear strength test will be most suitable.a)Consolidated Undrained Test (CU)b)Unconsolidated Undrained Test (UU)c)Consolidated Drained Test (CD)d)All are equally suitableCorrect answer is option 'B'. Can you explain this answer?
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A multi-storied building is to be completed over a fine clayey soil within three months. In order to analyze the shear strength of the foundation soil which of the following shear strength test will be most suitable.a)Consolidated Undrained Test (CU)b)Unconsolidated Undrained Test (UU)c)Consolidated Drained Test (CD)d)All are equally suitableCorrect answer is option 'B'. 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 A multi-storied building is to be completed over a fine clayey soil within three months. In order to analyze the shear strength of the foundation soil which of the following shear strength test will be most suitable.a)Consolidated Undrained Test (CU)b)Unconsolidated Undrained Test (UU)c)Consolidated Drained Test (CD)d)All are equally suitableCorrect answer is option 'B'. 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 A multi-storied building is to be completed over a fine clayey soil within three months. In order to analyze the shear strength of the foundation soil which of the following shear strength test will be most suitable.a)Consolidated Undrained Test (CU)b)Unconsolidated Undrained Test (UU)c)Consolidated Drained Test (CD)d)All are equally suitableCorrect answer is option 'B'. Can you explain this answer?.
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