Question

The test performed on pile to separate load capacity into skin friction and end bearing components is _____.

• A. Lateral load test
• B. Cyclic pile load test
• C. Compression load test
• D. Uplift load test

Hint:

Pile load tests:
• Compression load test $\rightarrow$ Ultimate load capacity.
• Cyclic pile load test $\rightarrow$ Separates skin friction and end bearing.
• Lateral load test $\rightarrow$ Horizontal resistance.
• Uplift load test $\rightarrow$ Pull-out capacity.

Answer 1

The Correct Option is B

Concept: A cyclic pile load test consists of repeated loading and unloading cycles on a pile. The test helps distinguish the contributions of:
• Skin friction (shaft resistance).
• End bearing (tip resistance). This separation is useful in evaluating the pile's load-transfer mechanism.

Step 1: Understand the purpose of the cyclic pile load test. During cyclic loading, the skin friction is progressively mobilized and reduced, allowing the end-bearing component to be estimated separately.

Step 2: Identify the correct test. Hence, \[ \boxed{\text{The cyclic pile load test separates skin friction and end-bearing resistance}.} \] Therefore, the correct option is \[ \boxed{(B)\;\text{Cyclic pile load test}.} \]