scope:

This Standard applies to Deep Tube Tunnel and Shaft assets owned by LU.

This Standard defines the requirements for Deep Tube Tunnel and Shaft assets through the following lifecycle stages:

Inception and design

Construction, installation, testing and commissioning

Inspection

Analytical assessment

Condition assessment and certification

Maintenance

Strengthening and Renewal

Decommissioning

Evidence of compliance

This standard replaces 2-01304-006 A1. The Standard has been re formatted and renumbered. There were no technical changes.

Purpose

The purpose of this Standard is to define the whole life cycle requirements for Deep Tube Tunnel and Shaft assets. These assets comprise:

Running tunnels

Cross passages between running tunnels

Step plate junctions

Crossover tunnels

Depot approach tunnels (e.g. London Road)

Overrun tunnels

Siding tunnels

Platform tunnels

Concourse tunnels

Station passageway tunnels

Tunnel headwalls

Tunnel ringwalls

Tunnel openings and junctions

Inclined shafts (e.g. escalator shafts)

Vertical shafts (e.g. ventilation, access, service, lift and substation shafts)

Cable shafts

Pump shafts

Disused tunnels

Disused shafts

Other tunnels and shafts constructed by mining methods

In defining requirements specifically applicable to Deep Tube Tunnel and Shaft assets, this Standard complements LU Standard 1-050 (Civil Engineering - Common Requirements) that defines mandatory requirements generally applicable to all Civil Engineering assets including the Deep Tube Tunnel and Shaft assets.

A supporting Manual of Good Practice G-055 gives guidance and explanation on Deep Tube Tunnel and Shaft assets.