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23 years

Holland Park Avenue, Shepherds Bush Roundabout

Client: Shepherd Construction On behalf of Redrow Homes
Value: £2.54M
Duration:Mar 2014 – Dec 2014 37 Weeks Subs & Frame Jul 2015
Project Type: Residential

Project Description

The project entailed the construction of a residential/commercial mixed use scheme comprising groundworks, a single storey reinforced concrete basement and a ten storey reinforced concrete frame. The site was located adjacent to Shepherds Bush roundabout, one of London’s busiest.

Scope of Works

We were engaged by Shepherd Construction on behalf of Redrow Homes as a domestic Sub-Contractor on an amended form of sub-contract, JCT Design & Build 2011, with design responsibility for temporary works and without any permanent works design responsibility.


The scope of work comprised reduce level dig, basement excavation, design and installation of temporary works to the basement and pit excavation, underslab drainage, RC single storey waterproof basement and lift pit, RC foundations for the core, site wide drainage and services including the installation of a pumping chamber, construction of a ten storey RC Core and Frame utilizing a jump-form method of construction for the RC Core, external works and hard landscaping. Good site logistical management was paramount for this project as the site was located immediately adjacent to the busy Shepherds Bush roundabout.


The drainage connection to the main sewer was located in a shared access road which was in use daily by neighbouring residents. The existing manhole over the sewer connection was broken out and we constructed a new deep manhole. Due to the need for shared access our working hours were restricted from 10.00am to 4:00pm. We devised a method of working to take account of these restrictions. We installed a ‘bailey bridge’ solution over the new manhole/shaft to facilitate out of hours access for the adjoining residents. The temporary bridge was lifted on and off daily using the tower crane.


The scope of works entailed:

  • Site logistics management – a key aspect to the success of the project
  • Site waste management and spoil disposal
  • Reduce level dig
  • Design and installation of temporary works to the basement and deep pit excavation
  • Basement excavation
  • RC Core, lift pit, ground beam and pile cap excavation
  • RC Core, pad foundations and Lift pit
  • RC single storey basement slab and retaining walls
  • Waterproofing system – ‘Cetco’ volclay and waterstop RX
  • Provision of tower crane attendance personnel
  • Under-slab drainage
  • Site wide drainage and services
  • Construction of a deep manhole for the sewer connection in a shared access road
  • Pumping chamber
  • External works reduce level dig and sub-base construction
  • Jump-form construction to 10 storey RC core
  • 10 storey low rise RC Frame
  • In-situ RC stairs using ‘Stairmaster’ permanent metal formwork
  • GRP grid infilling to service riser openings
  • External hard landscaping works – Scoutmoor York Stone Paving

As a result of implementing good site logistical management and jump-form construction techniques for the reinforced concrete core we achieved completion of our Superstructure RC works in 37 weeks, 8 weeks ahead of our 45 week contracted programme duration. We had a return visit to complete the hard landscaping package (Scoutmoor York Stone paving) which we achieved in an 8 week period, 2 weeks ahead of our 10 week contracted programme duration.

 

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T: + 44 (0) 20 8900 1981  |  F: + 44 (0) 20 8903 5238  |  E: info@modebest.co.uk
Specialists in: Groundworks | RC Frames | Civil Engineering
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Modebest Builders Ltd

Unit 2,
29 Fourth Way,
Wembley,
Middlesex,
HA9 0LH, UK