Proceedings-DFI-India 2016: 6th Conference on Deep Foundation Technologies for Infrastructure Development in India, (DFI)
Instrumented Pile Load Tests on Acip for a Real Estate Project in Kolkata- A Case Study
Er. Krishnendu Mandal, Mythcon, Kolkata, India
Twelve (12) augered cast-in-place (ACIP) instrumented pre production piles were designed, constructed and installed at real estate multistoried building site location in kolkata, India. Pile instrumentations were consisted primarily of strain gauges and extensometers. Total 72 vibrating wire strain gauges and 24 tell tales are installed to record strain and displacements at different diameter piles (500 mm. 600 mm, 750 mm, 1000 mm), lengths varying 24 m to 50 m. This manuscript describes 1) The initial installation location of the test piles 2) The selection and installation design of the instrumentations within the test piles.3) Load deflection response with respect to instrumentations in conjunction static axial compression load test. Sample initial measurements of the various instrumentation are presented. The objective of these load tests along with instrumentations can be more directed by assembling strain data and subsequent interpretation of strain values along the length of the piles. Instrumentations through strain gauge and tell tales in association with conventional maintained load test will lead detailed understanding of the pile behavior and as well pile formations through the soil strata.
|article #2214; publication #1020 (INDIA-2016)|