A track record built on disciplined delivery

Proven delivery across tunnel strengthening, condition assessment, station rejuvenation and bearing replacement — from monitoring and analytics to repair, strengthening and renewal.

Featured Projects Across Rail &
Urban Infrastructure

A selection of relevant project references drawn from
Custera’s and our shareholders’ track records across
rail and urban infrastructure.

Singapore · By Shanghai Tunnel Engineering Co (Singapore)

Segment Repair & Steel Ring Reinforcement

Segment repairs, steel ring reinforcement and light-impact grouting on Singapore MRT tunnel assets.

REPAIR & STRUCTURAL STRENGTHENING

Singapore · By Shanghai Tunnel Engineering Co (Singapore)

Tunnel Scanning

3D laser scanning with 8K HD lining imaging for approximately 300km of underground MRT Tunnels in Singapore.

Condition Assessment


8K
HD imaging
2 mm
Accuracy Laser scanning

Shanghai Metro · Line 7
By Chengdun SuiAn Engineering

Steel Ring Reinforcement

Steel ring reinforcement for tunnel segments exceeding ovalisation of
10 cm, restoring geometry and arresting deformation.

REPAIR & STRUCTURAL STRENGTHENING


10cm
Ovalisation addressed
Segmental

Nanchang Metro · Line 1
By Chengdun Sui An Enigneering

322 tunnel rings in one year

Installation of 322 tunnel rings within a single year, carried out during engineering hours with minimal service distruptions.

Repair & Structural Strengthening


322
Rings installed

Shanghai Metro · Zhanghuabing Station
By Shanghai Urban Operations Group

Steel roofing replacement

Replacement of steel roofing systems completed in 171 hours under full closure, with the balance under live operations.

STATION REJUVENATION


171h
Full closure
115d
Live ops

Shanghai Metro & Pudong Airport
By Shanghai Urban Operations Group

10,000+ bearing replacement

Over 10,000 elastomeric, pot and spherical bearings replaced in Shanghai

BEARING REPLACEMENT


10,000+
Bearings