Location:

Premier Inn ExtensionCressing RoadBraintreeCM77 8GG

Project Description:

Premier Inn, Braintree needed

a Rockbox Gabion wall for the

creation of a new car park. The

Gabion wall would not only

produce a stable slope but also

leave the site with an aesthetic

finish.

Technical Requirements:

• Designed to facilitate a new

car park, over existing slope.

Client / Consultant:

Simpson Associates Consulting

Engineers LLP - Henly on

Thames

Contractor:

RG Carter

Merchant:

Travis Perkins - Braintree

Fleming Road Harrowbrook Industrial Estate

Hinckley LE10 3DU

Tel. 01455 617 139 sales@geosyn.co.uk

www.geosyn.co.uk

Simpsons Associates contacted Geosynthetics for assistance in providing a RockBox Gabion solution for an extension to the Premier Inn at Braintree. In Figure 1 you will see the drawing of the proposed gabion wall provided by our in house engineers.

Geosynthetics produced the solution in a short space of time as requested because RG Carter, the contractor, were already on site. The full solution, complete with cross sections, were sent to Simpsons Associates so they could incorporate them into their project files. Prior to the start of construction Geosynthetics were able to liaise directly with the contractor. Geosynthetics visited site to personally show the installation team how to assemble the gabion units using the helical fastenings in order to speed up the entire installation process. Geosynthetics also addressed their concerns about the finish between the gabions and the tarmac road surface.

Case Study

Rockbox Gabions & Ekotex®

Premier Inn Extension, Braintree

Tel: 01455 617139 Fax: 01455 617140 www.geosyn.co.uk

Fleming Road, Harrowbrook Industrial Estate,Geosynthetics LtdHinckley, Leicestershire. LE10 3DU

Drawn By:PBRef: TR16-1538_GAB_

Scale:NTSVersion:V2

Date:18/02/2016

Checked By:

Sheet:Description:Project:

Premier Inn extension, Braintree Cross Section Gabion Retaining Wall H=2.00m

2.5kPa

6°

Gabion Infill SelectedGranular MaterialClass 6G

Existing ground

H=1.85m

1.0m

Retained fill:Sandy gravelly CLAYAssumed Parameters

26°18 kN/m³

C 0 Kpa

Minimum 300mm Starter Layer of Subbase Type 1Minimum allowable bearing capacity 120KPa

(at top of the foundation)

Geotextile Type B TR16-1538V2,To base of foundationAt rear and top of the Rockbox

SOLUTIONHt = 2.00mHr = 1.85m

Embedment to be site specificto suit build up

1.0mROCKBOX B1m X 1m X 1m

H=2.00m approx.

Area not accessible due todense shrubbery and trees.

Cut to safe angle

Compacted GranularMaterial

1.5m

1.5m

ROCKBOX A1.5m X 1m X 1m

5.0m

1.0m

Site prior to installation

Figure 1 - Engineer drawing of solution

Helicals used to speed up assembly

Fleming Road Harrowbrook Industrial Estate

Hinckley LE10 3DU

Tel. 01455 617 139 sales@geosyn.co.uk

www.geosyn.co.ukAdam Bond (RG Carter)- Project Manager

“After receiving the go ahead from Simpson Associates to comence the gabion works Geosynthetics Ltd promptly visited site and provided

guidance to the installation team to ensure the installation went smoothly and quickly. From the initial calculations done for Simpsons to the

assistance on site, the service from Geosynthetics Ltd has been professional and prompt. I would not hesitate to ask for their assistance again.”

Case Study

Rockbox Gabions & Ekotex®

Premier Inn Extension, Braintree

Site preparation for installation Constructed Gabion wall

Finished Gabion wall and car park