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.
Piling is used to strengthen the soil on ground and able to support the load of building. Piles have to be driving into the ground by using piling machine, there is few different types of piling machine in the market and all of them have different usage. The usage of types of piling machine is depending on the type of piles used, different types of piling machine may affect the procedure of pile driving too. Location of site affect the usage of type of piling machine too, because some of the piling machines make noisy voice and it may affect the nearby resident.
Type Of Piling Machine
1) Bakau Piling Machine Features :
i) It’s using a type of timber called “Bakau” as pile.
ii) Normally used for single storey house which has lower load.
iii) Lower cost spent.
3) Rotary Piling Rig Features :
i) It’s commonly used for railway, road,bridge, public works bridge and large building, etc.
ii) Maximum Hole diameter : 2000mm
iii) Maximum Drilling depth : 60m
iv) Piling speed : 1.5km/hour
v) Efficient and energy-saving engine
4) Nissha D308 / 408 / 508 Piling Machine
Features :
i) Used for spun pile, RC square pile and etc.
ii) Fast driving speed and efficient.
