Design and Construction Aspects of Rock Socketed Monopile for an Urban Flyover Project
摘要
The increase in demand for advanced infrastructure has paved the way to invent new technologies and ideas. General practice of transferring loads from the superstructure to underlying rocky strata is through pile groups, which consumes more space and time of construction. These constraints demand reduced structure footprints, which in turn is altering foundation recommendations. The feasibility of large diameter (2–3 m) rock socketed piles (termed monopiles) to counter these restraints is discussed in this paper. A case-specific design (using relevant IS and IRC codes) and construction aspects are systematically presented in the paper. Furthermore, a finite element model simulation of the vertical load test is performed and validated using field observations. This literature describes various aspects of design and construction, viz. socketing length/termination criteria, pile penetration ratio (PPR, torque generated by rig in “t-m” to advance pile of one square meter area by 1 cm depth), pile load tests, and other quality checks.