Commercial Development, Queen Street

LocationQueen Street, Glasgow
RequirementBearing piles for tower crane
Techniques
Main ContractorISG Construction

Project Overview

TechnikGS were contracted to provide the design and installation of the piling works to support a tower crane base.

The existing City Centre multi storey building was undergoing an extensive renovation and required a crane within the central core to facilitate these works.

Space was a premium as part of the already small carpark had to remain live throughout these works.

Project Challenges

  • Restricted access and 2.45m headroom requirements.
  • Strict vibration and noise requirements.
  • Careful planning of storage and cement/reinforcement deliveries.
  • Tight programme

Solution Delivered

 

21 micropiles were installed using our modified Klemm 702 rig. The nominal 200mm diameter flush grout piles were installed to a depth of 12m and the project was completed within a week.

The site conditions were ideal for a site batched grout to enable full control of the mixes without the reliance on concrete wagons arriving outwith the strict delivery slots.

A sacrificial pile was statically tested in tension to confirm our design assumptions.