What is a rock socketed pile?
The term ‘socket piles’ (or rock sockets), refers to a technique that is used to embed a pile into solid rock. This can be necessary to utilise the full structural capacity of the piles for both compressive and tensile forces.
What is pile socket length?
The depth up-to which the RCC end bearing piles must be penetrated within the Hard Rock is known as the socket length. Example : The hard rock is available at a depth of say 10m from ground level.
Is code for rock socketed pile?
Information as per IS 2911 (Part l/Set 2). Geotechnical investigation data as laid down as per IS 1892, IS 13063 or any other relevant IS code. The rock profile, contours, the geological data and the necessary information as listed in IS 13063 along with the engineering and physical.
What is bored pile foundation?
Bored piles are cylindrical bodies made of concrete (with or without reinforcement) which are installed in the ground by a variety of methods. They transmit high structural loads into lower, load-bearing soils. The length, diameter, material, shape and layout of the piles can be varied according to their intended use.
Is 2911 Part 4 load test piles?
Broadly, piles transfer axial loads either substantially by friction along its shaft and/or by the end-bearing. The portion relating to load test on piles has been covered in a separate part, namely, IS 2911 (Part 4) : 1984 ‘Code of practice for design and construction of pile foundations: Part 4 Load test on piles’.
What is a end-bearing pile?
End-bearing piles develop most of their load-bearing capacity at the toe of the pile, bearing on a hard layer of rock or very dense soil and gravel. The pile transmits the load through soft, compressible strata directly onto firm strata. This type of pile therefore acts in the same way as a column.
What is static pile load test?
Static Load Tests measure the response of a pile under an applied load and are the most accurate method for determining pile capacities. The purpose of such tests is to verify that the load capacity in the constructed pile is greater than the nominal resistance (Compression, Tension, Lateral, etc.) used in the design.
When should bored piles be used?
Bored Piles can be used for massive construction complexes where the load of the vertical building structures is huge. Bored Piles can be used in difficult soil conditions. Piles can be extended to go beyond the depths of the frost penetration and seasonal moisture variation.
How does rock drilling work?
Rock drilling is all about power and speed. When the piston strikes a chuck, it transfers its kinetic energy as a stress wave through a drill rod to the drill bit, which uses this impact energy to pulverize the rock.
What is a socketed pile used for?
Piles socketed into rock are often used to support heavy loads from buildings and infrastructure. Piles typically of up to 1.8 m diameter carrying safe working loads of up to 40 MN are utilised in Australia. Their design has traditionally been based on conservative, empirical rules.
What determines the performance of rock socketed piles at design loads?
The performances of rock-socketed piles at design loads are mainly governed by the shear resistance and the base resistance developed at the interface between the concrete shaft/base and the surrounding rock mass.
What is the lateral capacity of a 3D socketed pile?
There was a considerable increase in the lateral capacity of the pile when the depth of socketing is three times the diameter of the pile into rock with a minimum embedment. In the 3D socketed piles, the lateral capacity of the pile is almost 18 times higher than the non-socketed piles.
What is garsp (rocket field socket procedure)?
Their design has traditionally been based on conservative, empirical rules. GARSP (Golder Associates Rocket field Socket Procedure) is a recent design innovation that provides a serviceability approach to design, and allows socket lengths to be optimised during the drilling process, often resulting in significant savings.