Proceedings - 13th International Workshop on Micropiles - 2017, Vancouver, BC, Canada, (ISM, DFI, ADSC)
MICROPILE INSTALLATION USING THE PREVENTER SYSTEM TO CONTROL THE INFLUX OF GROUNDWATER DUE TO A HIGH WATERTABLE
An 8 storey building located in Dubai had undergone some form of movement within the basements leading to cracked columns, walls and slabs. Active water ingress penetrated through cracks in the basement slab and walls. Cracks to the columns were initially identified in 2012 and were repaired in mid 2014 and appear not to have re-cracked since. A geotechnical and structural assessment of the building was carried out and concluded that structurally the building was within the limits of acceptance. However, the consulting engineer carried out a detailed design to enhance the stability of the structure, which involved a combination of grouting and micropiling. Some, 312No. 15.0m TITAN 40/20 micropiles (4670m) and over 580No.3.0m tube a manchette steel grouting tubes were both successfully installed using the preventer system. This paper examines construction processes involved in installing the micropiles using the TITAN preventer system.
|article #2652; publication #1033 (ISM- 2017)|