What is a pile load test?

What is a pile load test?

Static pile load testing is one of the most common methods for testing the actual in-situ capacity of a pile. The test program involves the direct measurement of pile head displacement in response to a physically applied load. Piles can be tested for compression, tension or lateral loads. ...

How is pile tested?

Static load testing, where the pile is loaded gradually via a load cell from either reaction piles, kentledge or surface footings. This method of testing is generally considered the most reliable method of testing piles and most closely resembles the working loading conditions on the piles.

What are the types of pile test?

These include three distinct methods:

• Nuclear radiation, or gamma-gamma method.
• Short wave (ultrasonic) acoustic method.
• Long wave (sonic) acoustic method.

When should piles be tested?

The test is carried out to a specified method of applying a static load incrementally to the test pile head and measuring the pile head deflection under the applied load. 2. Static load testing will give information about the deflection versus time and load versus deflection characteristics of the pile. 3.

How many tests are there in pile?

Two types of tests namely initial and routine tests, for each type of loading viz. vertical, horizontal (lateral) pull out, are performed on piles.

How many piles should be tested?

The number of piles in the sampling test may not be less than 2% of the total piles and should be no less than 5 piles in routine inspection. If there is any serious problem, the whole pile foundation engineering must be evaluated.

How long is pile load test?

In the CRP test, the load required to cause a pile to penetrate into the ground at a constant rate is monitored until either the maximum specified test load is achieved or "failure" of the pile occurs. The performance of the test takes less than 24 hours excluding erecting and dismantling the test equipment.

Why is pile testing important?

Pile load testing is an important factor for the piling works that should be properly planned and factored into the project schedule and project costs at an early stage in order to validate the design safety factors, pile design & lengths, to establish the pile installation criteria and to quality control the piling ...

Is pile a code test?

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'. Accordingly IS 2911 has been published in four parts.

How many piles should be tested as per IS code?

NOTE — The displacement is at the cut-off level of the pile. 7.5 Pile groups shall be tested under conditions as per actual use in the structure as far as possible. 8.1 Uplift force may preferably be applied by means of hydraulic jack(s) with gauge using a suitable pull out set up.

What is Pile Load testing?

• Static pile load testing is one of the most common methods for testing the actual in-situ capacity of a pile. The test program involves the direct measurement of pile head displacement in response to a physically applied load.

What is a pile integrity test?

• Reveals potential shaft or pile defects such as major cracks,necking,soil inclusions or voids
• Can be used to determine unknown pile lengths
• Available in three versions (cabled and wireless): velocity only,force and velocity,or two velocity channels
• Optional PIT-Professional reporting software allows advanced modeling and analysis

What is a test pile?

• test pile. A pile, 1 used to determine the load that it can support without settling; this determination usually is made by placing heavy weights on a platform mounted on the top of the pile.

What is a static pile load test?

• Static load testing. Static load testing is an in situ type of load testing used in geotechnical investigation to determine the bearing capacity of deep foundations prior to the construction of a building. It differs from the statnamic load test and dynamic load testing in that the pressure applied to the pile is slower.