For Innovative Permanent and Temporary Sheet Piling Solutions in the UK and Eire call: 01772 794141
Permanent Sheet Pile Retaining Walls
Sheet Piling (UK) Ltd offer the design (where requested), supply and installation of steel sheet piles to form permanent retaining walls on a wide variety of schemes and applications.
Commonly sheet piles are specified and installed as the permanent retaining structure on schemes where insufficient space is available for complex temporary works which would be required to allow construction of alternative retaining solutions; or where the cost and programme benefits of permanent sheet piling dictates this to be the optimum retaining solution.
When used on road and rail infrastructure projects, the sheet piles are required to be designed to either the relevant Highway Agency or Network Rail design standards together with associated design and checking certification. Typically these specifications require a design life of 120 years together with surcharge loading relevant to the proposed application (i.e. Highway HB loading or Railway RU loading).
Other common applications include retail and commercial service yards, flood defence walls, axially loaded bridge abutments as well as any general boundary retaining wall.
Sheet Piling (UK) Ltd's experienced in-house design engineers are able to offer a full design service for such schemes, including the relevant Approval in Principal or Form B documentation, together with independent checking (where applicable).
Once installed excavation works can commence immediately thus eliminating any curing period which is required for alternative secant and contiguous pile walls. If required the exposed sheet piles can then be shot blasted and painted to provide an aesthetically acceptable finish and enhance the pile section design life. Alternatively a wide range of 'non structural' cladding solutions can be constructed in front of the wall.
In addition a reinforced concrete capping beam can be cast to the top of the sheet piles to which any containment barriers / hand railing can be directly fixed. Alternatively a steelwork capping beam can be specified.
Finally to prevent build up of excessive hydrostatic water pressures behind the sheet pile wall, drainage weep holes are formed nominally above the final excavation level. On critical applications where preventing loss of fines through the weep holes whilst ensuring any hydrostatic pressures are relieved, consideration should be given to the use of the unique 'Blue Marlin Weep Hole Filter System' - Refer to 'Products' section of web-site for more details.
As the United Kingdom's agent for both Nippon Steel (NSP) and Toyko Steel (TSP) sheet piles, Sheet Piling (UK) Ltd have in excess of 5000Te of new sheet piles in stock, all of which are supplied with Mill Certification. Consequently we can respond promptly to provide ex. Stock sheet piles for any size of permanent sheet pile retaining wall scheme thus preventing excessive mill lead-in periods which would otherwise cause programme issues.
Some recent successfully completed permanent retaining wall projects are listed below:
- A64 Hopgrove Roundabout for Balfour Beatty Civil Engineering.
- A2/M25 Widening Scheme for Costain.
- Stratford Over Bridges for Balfour Beatty Major Projects.
- Tesco Tidworth for Costain.
- M74 Completion Scheme for Interlink M74 Joint Venture.
- Kentish Town & Graheme Park for Birse Rail.
- Manchester Metro Link for Expanded Piling.
Key Benefits and Advantages
- Eliminates requirement for temporary earthwork support.
- Design life of upto 120 years can be accommodated.
- Reduced programme period over other traditional retaining solutions.
- Can be painted to provide an aesthetically acceptable finish.
- Can be fitted with Blue Marlin Weep Holes to provide suitable drainage.
- Either reinforced concrete or steel capping beam can be installed.
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