 |  Deep Foundation 20 Flashcards |  Start |
 | What is the ultimate load carrying capacity of a pile based on? |  Card: 1 / 20 |
| The maximum load which it can carry without failure or excessive settlement of the ground. | Card: 2 / 20 |
| Fill in the blank: The ultimate bearing capacity of a pile can be expressed as Qup = ______ + ______. | Card: 3 / 20 |
| Qeb + Qsf | Card: 4 / 20 |
| True or False: The factor of safety for driven piles is typically 4. | Card: 5 / 20 |
| False. The factor of safety for driven piles is typically 4, but for bored piles it is 2.5. | Card: 6 / 20 |
| Which formula is used for calculating the allowable load on a pile with a drop hammer? | Card: 7 / 20 |
| Qap = WH/6(S + 2.5) | Card: 8 / 20 |
| Riddle: I am a type of pile with an enlarged base, designed to increase load capacity when installed in soft soils. What am I? | Card: 9 / 20 |
| Under-reamed pile | Card: 10 / 20 |
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| What is the purpose of negative skin friction in piles? | Card: 11 / 20 |
| It acts as a downward shear drag due to the movement of surrounding soil relative to the pile. | Card: 12 / 20 |
| Fill in the blank: The minimum number of piles required for group action is ______. | Card: 13 / 20 |
| 3 | Card: 14 / 20 |
| Which of the following is a method of installation for piles? A) Bored B) Timber C) Steel D) Composite | Card: 15 / 20 |
| A) Bored | Card: 16 / 20 |
| True or False: The efficiency of the hammer for a single acting steam hammer is typically between 0.75 to 0.85. | Card: 17 / 20 |
| True. | Card: 18 / 20 |
| What does the term 'thixotrophy' refer to in the context of pile installation? | Card: 19 / 20 |
| The regain of strength of the soil after the extra pore pressure dissipates, usually within 3 to 6 months. | Card: 20 / 20 |
| Completed! Keep practicing to master all of them. |  Restart |
