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Design, specification and constrcution of multi-use ... - Sport England

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SECTION 2 - DESIGN & CONSTRUCTION REQUIREMENTS<br />

2.01 <strong>Design</strong> & performance criteria<br />

2.01.1 The site <strong>and</strong> project specific criteria, as detailed in Appendix B, form part<br />

<strong>of</strong> the Employer’s Requirements.<br />

2.01.2 The design <strong>and</strong> performance criteria <strong>of</strong> the MUGA shall be in<br />

accordance with the relevant table detailed in Appendix A <strong>and</strong> stated in<br />

Appendix B.<br />

2.02 Construction<br />

2.02.1 Formation preparation<br />

The area <strong>of</strong> the works shall be stripped <strong>of</strong> all vegetation <strong>and</strong> topsoil to a<br />

depth <strong>of</strong> at least 75mm, the exact depth being determined by reference<br />

to the trial hole logs recorded during the ground investigation survey.<br />

The ground shall be trimmed <strong>and</strong> levelled using cut <strong>and</strong> fill as required.<br />

Any filling should be carried out in layers not exceeding 150mm<br />

thickness, <strong>and</strong> each layer should be compacted before the next is<br />

spread.<br />

Any s<strong>of</strong>t spots shall be excavated <strong>and</strong> replaced with imported crushed<br />

rock, free from detritus material, in accordance with the Department <strong>of</strong><br />

Transport Specification for Highway Works (Class 6F1 or 6F2).<br />

The finished formation should be trimmed to a tolerance <strong>of</strong> ±25mm <strong>and</strong><br />

have a minimum undrained shear strength <strong>of</strong> at least 50kN/m 2 or a<br />

California Bearing Ratio <strong>of</strong> (CBR) 2%.<br />

The prepared formation shall be treated with a total weed-killer selected<br />

to minimise the risk <strong>of</strong> future weed growth within the construction. The<br />

form <strong>of</strong> weed killer to be <strong>use</strong>d shall be detailed in the Contractor’s<br />

Proposals <strong>and</strong> it shall be applied strictly in accordance with the<br />

manufacturer’s specified application rate.<br />

A geotextile membrane shall be laid over the formation. Joints shall<br />

overlap by at least 300mm.<br />

2.02.2 Drainage<br />

The Contractor shall design <strong>and</strong> install a closely spaced system <strong>of</strong><br />

surface water drains that will:<br />

(i) Protect the installation from the effects <strong>of</strong> ground or surface water<br />

20<br />

For info or comments please email mugas@sportengl<strong>and</strong>.org

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