How To Drill Bored Pile
Usually bored pile is used for those tall buildings or massive industrial complexes, which require foundations which can bear the load of thousands of tons, most probably in unstable or difficult soil conditions. The method of drilling bored pile is different from RC Square pile or spun pile which are using driving method, the piling machine to be used will be different too. Bored piling works required specialist bored piling contractor to follow up instead of hiring general piling contractor. There is a simple step-by-step method on how to drill the bored pile in construction site.
How To Drill Bored Pile
1) Adjust the piling machine on the pile axis and haul with the auger to the drilling place.
2) Start drilling until the auger is filled.
3) Return from the drilling level to the top of the pile hole.
4) Swing to the uploading area.
5) Unload the dirt in the unloading area.
6) Swing back to the top of the hole.
7) Repeat steps 2 to 7 until the pile is completely drilled. Relocated the machine and start steps 1 to 8.
8 ) Start erecting rebar cage using a crane.
9) Use funnel for dry method and tremie for wet method. Start pouring the concrete and finish the pile.
Video On How To Drill Bored Pile
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maxwell silo said,
December 5, 2009 @ 11:28 am
Dear Harry Lee,
I have few questions regarding bore pile piling.
1. I have a problem on the swamp soils where we encounter a number of big cavity with few layer of cavity. How do we can ensure to make smooth drilling on the drilling? is there any special method, equipments or special tecniques can be used.
2. What the best grade of grout should we used to fill up the cavity and how much should we add in?
3. How to perevent or minimise the concrete waste during the concreting? Normally we use concrete grade 40 and it very expensive if we used more for to fill up the cavity?
I want to know for your expert advise regarding the matter above. I looking forward for your ansrew.
Thank you & happy X’mas.
Maxwell Silo
ildefonso Candaza Jr said,
April 21, 2010 @ 2:46 pm
Sir,
I am now stationed in South Sudan for construction of bridges,we used bored piles
for the foundation.So far,I have’nt encounter difficulty in bored piling.what querries me is the mahineries involved in the task. we are using Soilmec(crawler type).we have one mobletype of drilling machines,but it maximum length to drill is quite not satisfactory,it can drill 25meter maximum. Can you suggest any type ,spicifically not a crawler one.because during mobilization it lessen the burden of transforting such machine in the site.Our mobile type is getting older it needs rehabilitation.