Answer / sjtbehera

See in piles some statment are record in field book some
are as follows
1. what is dia of pile
2. what is length of penetraion of pile in one hour.
3. what is the finial depth of termination of pile.
4. what is the cum casting of pile.
5. plate laoad test of pile.

Answer / prashanth

1. what is dia of pile
2. what is length of penetraion of pile in one hour.
3. what is the final depth of termination of pile.
4. what is the cum casting of pile.
5. plate laoad test of pile.
6. Dia of steel to be used.
7. Grade of the concrete as per design and Pouring of the
concrete in layer by layer.
8. Testing of pile like Intergrity test.
9. Removal of the termination slurry concrete.

Answer / siaf rizvi

Above all,
1# Sample of rock @ termination level.
and mant more which u can learn as per exprience.

Answer / shubham rana

It is suggested that all utilities such as (cables, pipelines ,gaslines , sewerlines) falling within excavation area are diverted away in advance to avoid damage to such utilities during the excavation/ construction phase.

Initial hard strata of the ground is cut by a “Drilling Bucket” , which is a box like structure attached to Rig machine and has a sharp toothed like structure below it .

Then a temporary Mild Steel casing for about 4 to 6 m (approx) length from the ground level will be driven to protect loose soil from falling in the bore hole.

Then a Polymer Powder is added to form a slurry which provides a clear, solid-free, viscous borehole stabilizing fluid till the excavation is done for the piles. Polymer Slurry has a pH of 11 to 12, Specific Gravity of 1-1.04 and Viscosity 65 to 140.

After drilling borehole, reinforcement cage is lowered. While lowering the cage care has to be taken to install it in gap of 10 m and fillet weld of 6mm is to be provided to join upper end of previous cage with lower end of cage to be lowered.
After cage lowering , Tremie Pipe generally of diameter 200mm and 2-3 m length are lowered one by one and tied to each other . The gap between the bottom of the bore to the end of tremie pipe will be min 300mm.

Upper end of the tremie pipe is connecter to funnel shaped “Hopper” , to which concrete mix is poured .

As the Concreting Proceeds Concrete mix being denser replaces the Polymer slurry and slurry comes out of the borehole and is diverted away from the hole.

A very high Slump Concrete 150 – 200 mm is needed for piling ,regular compaction to be provided by Hydraulic Drilling Machine so as to ensure proper lowering of concrete .


After Few days of setting sonic tubes are filled with water and then in one tube ultrasonic wave emitter probe and in other receiver probes are inserted, knowing the distance between the two tubes , Relative energy, waveform and differential time are recorded and mapped. This is called “Cross Hole Sonic Logging”.

This gives qualitative idea of the structural soundness of the concrete throughout the pile and hence structural integrity of pile can be verified by this method.

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