Troughing and Minor Line Side Civils Works

Descriptions

The purpose of this tender is to identify and appoint competent contractors to undertake works in relation to Troughing and Minor/Ancillary Lineside Civils Works in a live/working rail environment., This work is required to provide key installations and allow access to the rail for incumbent TfW Infrastructure Delivery Partners (IDPs) to complete their works, and ensure the network is compliant to standards applicable to an electrified railway., Mini-competition will be utilised as the primary call-off process under this Framework, with a direct award allocation process reserved for urgent requirements only., The potential work to be procured via this framework includes but is not limited to:, - Site surveys and inspections: dilapidation, condition, and/or capacity verification, rod and rope Under Track Crossings (UTX)/Under Road Crossings (URX) Intrusive and Non-intrusive Surveys, - Ground level troughing installation and cable pulling: interlocking cable route components providing a continuous smooth internal surface; covers and lids shall be a close fit and positively located using registration to prevent inadvertent displacement after installation, for example Concrete C/1/9, C/1/43 or equivalent polymer troughing. Road Rail Vehicles may be used with appropriate size and weighted jacks, hard standing jacks may be used for smaller cable drums., - Post-based elevated troughing installation: Elevated Glass Reinforced Plastic (GRP) trough system, Network Rail-approved to span 6m between fixing posts., - Trough signage, electrical warning signage any other signage as necessary., - Removal of existing troughing routes and cables: isolation procedures to be followed BS7671, Electricity at Work Regulations., - Lift and shift of existing cables as required: Isolation procedures to be followed BS7671, Electricity at Work Regulations., - Installation of concrete hard standings and switching platforms for OLE: concrete bases to be cast Distribution Network Operator (DNO), Relocatable Equipment Buildings (REB), Functional Supply Point Cubicles (FSP), Signalling Location Cabinets (LOC); safe access walkways to be constructed using MOT type1 aggregate or similar., - Minor vegetation clearance: the bulk of vegetation clearance will be done under a separate framework contract, but small localized areas may need to be cleared for the execution of works under this framework. This may include (but is not limited to) removal of small tree stumps, removal of shrubs and foliage, brambles etc with the use of chainsaws and brushcutters., - Clearance of ballast from existing trough chambers., - Provision of qualified critical safety staff to ensure regulatory compliance., - Installation and maintenance of RRAPs, - Installation of site compounds., - Minor fencing works (there is another framework for major fencing works but repairs or additional small requirements may occur in the delivery of ancillary civils packages)., - Culverts and retaining walls, and repairs/amendments to these., - Vehicle containment barriers and haul roads, - Reinforced concrete foundations, - Trial holes and service investigation., - Other minor civils works consistent with the scope of this framework., These works are required to:, - Enable the successful transformation and electrification of the Lines, - Create troughs for use by Signalling, Earthing & Bonding, HV cabling, LV cabling & Telecoms, - Carry out an additional minor lineside civils work required, The provision of works under this framework also requires:, - Interaction with AIW and IDPs regarding interface of programme to ensure the work subject to this framework is undertaken in time to support AIW and IDP major works delivery, - A close working relationship be established with AIW and IDPs to ensure a high level of co-ordination and working efficiency, - Predominantly night working patterns