Awarded as the best online publication by CIDC

Is it totally unacceptable that soil sediments are found at pile toe of bored piles?

The pile toe is usually cleared by airlifting prior to concreting. However, once the air-lifting operation ceases and concreting operation are not carried out simultaneously, suspended sediments would tend to settle and form the soil sediments at pile toe of bored piles.

The layer of soil sediments is considered to be unacceptable by most engineers as they claim that it would impair the structural performance of bored piles. For bored files with bell-out, the rock socket provided during the formation of bell-out tends to provide confinement to soil sediments. The horizontal stress will increase with the applied stress. Hence the settlement of soil sediments is very small and would not affect the performance of bored piles.


This question is taken from book named – A Self Learning Manual – Mastering Different Fields of Civil Engineering Works (VC-Q-A-Method) by Vincent T. H. CHU.

Share this post

Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

If you have a query, you can ask a question here.

Leave a Reply

Your email address will not be published. Required fields are marked *

Ask a question