CIVIL WORKS ON CABLE ROUTE LINE
Considering the site condition for civil work of cable laying project
This section of the works covers the design construction and maintenance of the civil works as required.
(i) Manholes for cable joints
(ii) Manholes for oil pressure systems
(iii) Road crossings and ducts
(iv) Cable protective covers and route markers.
(v) Foot Path
Rates for supply and installation of equipment quoted in the appropriate Schedules shall be inclusive of all forms of foundations and ancillary equipment as fully completed covering excavation, ground preparation, installation testing and reinstatement and shall be deemed to have included all material guarding and all temporary and access works.
Contractor to Satisfy Himself as to All Conditions
The Contractor will be held to have satisfied himself as to means of access to the Site of the Works, transport of labour, materials and plant to and from and over the works, construction problems, nature of ground on site and other relative contingencies
Access and Transport
The Contractor will in consultation with the Engineer make all enquiries and arrangements with the proper authorities as regards access to the site of the works.
Setting Out and Levels
The Contractor is responsible for setting out the Works in accordance with the location shown on drawings. The Contractor shall relate all his route profiles to the National Geodetic Level (ordnance datum) and be responsible for all leveling necessary to achieve this. The nearest benchmarks may be some distance from the cable routes.
It is the responsibility of the Contractor to carry out his own investigations to the satisfaction of the Engineer to determine the nature of ground conditions prior to the design of the foundations by soil tests and investigations. The results and interpretation of all such tests and investigations together with the said characteristics proposed to be assumed for the design of each of the foundations, shall be submitted to the Engineer for approval before preparation of foundation working drawings and no foundation working drawings will be approved by the Engineer until such data has been submitted and approved by the Engineer. No claim by the Contractor for extra payment will be considered for carrying out these detailed soil investigations and tests.
Design and Drawings
The Contractor will be responsible for the design and detailing of all civil works and shall submit all drawings and calculation for the Engineer’s approval before commencement of construction.
The Contractor shall allow for a phase out submission of drawings for approval by the Engineer and at least 2 weeks from the date for receipt by the Engineer of each batch of drawings is to be allowed for detail checking.
Unless specified otherwise, design and details shall accord with the latest published editions of B.S., I. E. C. or other approved standard
Reinforced concrete shall be designed in accordance with British Standard Code of Practice BS 8110: loading including wind loading shall be in accordance with British Standard Code of Practice G.P.3 Chapter V Parts I and II with factors as appropriate to each location, structural steelwork where used designed to British Standard 5950: Foundations designed to British Standard Code of Practice G.P.8004.
Base for the sealing and structures shall preferably be combined with the foundations of other sub-station equipment being installed