How many piles should be load tested?
Pile testing strategy High Both preliminary and working pile tests essential. 1 preliminary pile test per 250 piles. 1 working pile test per 100 piles. In Table 3.1 below the level of risk is related to the characteristics of the piling works.
How do you perform a pile load test?
The test procedure involves applying an axial load to the top of the test pile with one or more hydraulic jacks. The reaction force is transferred to the anchor piles that go into tension in the case of a static load test in compression; or into compression in the case of a static load test in tension.
What is Kentledge in pile load test?
The Kentledge method involves the construction of a platform upon which weights are placed. These weights bear down on the piles putting it under load, the gauges then measure resistance, movement of the pile and other readings to determine the design load of the piles.
Is code for routine pile load test?
1.1 This standard (Part 4) covers the load test on all types of piles covered in IS : 2911 (Part 1/Sec 1)-1979†, IS : 2911 (Part 1/Sec 2)-1979‡, IS : 2911 (Part 1/Sec 3)-1979§, IS : 2911 (Part 1/Sec 4)-1984||, IS : 2911 (Part 2)-1980¶ and IS : 2911 (Part 3) 1980** and provides guidelines for determination of safe load …
What is routine pile load test?
Routine test shall be one-half percent to two percent of total number of piles or as specified, applicable to vertical and lateral load. Load Test shall generally conform to provision made in IS 2911 (Part IV) which provides guidelines for determination of safe loads and conducting of different types of tests.
Is 2911 a p4?
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.
What is routine pile?
Selection of piles for the Routine Test is done based on number of piles required subject to maximum of ½% of total number of piles required. The number of tests may be increased to 2% depending on the nature / type of structure. The test load applied is 1½ times the safe carrying capacity of the pile.
How to test piles for load capacity?
Pile loading test is one of the most common methods for testing the actual in-situ load capacity of any pile. The test method involves the direct measurement of pile head displacement in response to a physically applied load. In this test, piles can be tested for compression, tension, or lateral load You May Also Like:
How to measure the settlement of the pile?
The measurements of the settlement of the pile are recorded with the help of three dial gauges, with respect to a fixed reference mark. The test is conducted after a period of 3 dales after installation of the test pile in sandy soils, and after a period of one month after the installation of the test pile in silts and soft days.
What is the purpose of driving the test pile?
This is because by driving the test pile the soil properties are altered and with the passage of time much of the original properties are restored. The load is generally applied in an equal amount of increment and that is about 20 % of the allowable load. Settlements should be recorded with three dial gauges.
What is the procedure for loading of piles in is-2911?
Loading for Initial Tests is conducted as per Appendix ‘A’ Clause 6.3 of IS-2911 Part IV . Selection of piles for the Routine Test is done based on number of piles required subject to maximum of ½% of total number of piles required. The number of tests may be increased to 2% depending on the nature / type of structure.