Arun Soil Lab Pvt.Ltd.
Geotech and Material Consultants
Geotech and Material Consultants
Ensure and Assure safety of the structures
For a better and safe place to live and work with strong foundation
Quality Consiousness is Our Core Concept
For a better and safe place to live and work with strong foundation
Quality Consiousness is Our Core Concept
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We have completed 20 years of our existence.
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We are now having rock exploration facilities also.
Under Ream Pile Foundation Construction as per IS: 2911 (Part III) - 1980
The purpose of pile foundations is to transmit a foundation load to a solid ground to resist vertical, lateral and uplift load. A structure can be founded on piles if the soil immediately beneath its base does not have adequate bearing capacity. If the results of site investigation show that the shallow soil is unstable and weak or if the magnitude of the estimated settlement is not acceptable, a pile foundation may be considered. Further, a cost estimate may indicate that a pile foundation may be cheaper than any other compared ground improvement costs for a particular site and structure on a case to case basis.
In the case of heavy structure foundations, it is likely that the bearing capacity of the shallow soil is not satisfactory, and the construction be built on pile foundations. Piles can also be used in normal ground conditions to resist horizontal loads. Piles are a convenient method of foundation for works under/over water, such as jetties or bridge piers.
Under-ream piles are of bored cast in situ and compaction concrete types having one or more bulbs formed by suitably enlarging the borehole for the pile stem. The provisioning of bulbs substantiate bearing or anchorage. These piles find application in varying situations in different types of soils where foundations are required to be taken down to a certain depth in view of considerations like the need -
In the case of heavy structure foundations, it is likely that the bearing capacity of the shallow soil is not satisfactory, and the construction be built on pile foundations. Piles can also be used in normal ground conditions to resist horizontal loads. Piles are a convenient method of foundation for works under/over water, such as jetties or bridge piers.
Under-ream piles are of bored cast in situ and compaction concrete types having one or more bulbs formed by suitably enlarging the borehole for the pile stem. The provisioning of bulbs substantiate bearing or anchorage. These piles find application in varying situations in different types of soils where foundations are required to be taken down to a certain depth in view of considerations like the need -
- To avoid the undesirable effect of seasonal moisture changes as in expansive soils
- To reach firm strata
- To obtain adequate capacity for downward, upward and lateral loads and moments
- To take the foundations below scour level
- To reach firm strata
- To obtain adequate capacity for downward, upward and lateral loads and moments
- To take the foundations below scour level
However, it is not possible to construct under reams in sandy strata
Relevant IS Codes: Code of practice for Design and Construction of Pile Foundation.
| IS : 2911 (Part I/Sec 1)-1979 | Part 1 Concrete Piles Section 1 Driven Cast-In-Situ Concrete piles |
| IS : 2911 (Part I/Sec 2)-1979 | Part 1 Concrete Piles Section 2 Bored Cast-in-Situ Piles |
| IS : 2911 (Part I/Sec 3)-1979 | Part 1 Concrete Piles Section 3 Driven Precast Concrete piles |
| IS : 2911 (Part I/Sec 4)-1979 | Part 1 Concrete Piles Section 4 Bored Precast Concrete piles |
| IS : 2911 (Part II)-1980 | Part 2 Concrete Piles (First revision) Timber piles |
| IS : 2911 (Part III)-1980 | Part 3 Concrete Piles (First revision) Under-reamed piles |
