Tunnels

STORMWATER MANAGEMENT AND ROAD TUNNEL PROJECT (SMART)

The SMART project is a flood water diversion tunnel from the confluence of Sg. Ampang and Sg. Gombak to Desa Pond which cut across the treacherous Kuala Lumpur Limestone. Kuala Lumpur Limestone is notorious for its highly erratic karstic features that post great uncertainties in foundation constructions. Amongst the challenges include abrupt change of limestone profile which required innovative earth retaining system for the excavations of shafts, measures to prevent excessive draw down of groundwater table. Comprehensive assessments were performed with regards to impact on adjacent properties and effective mitigation measures were developed.
LOCATION

Kuala Lumpur

CLIENT

MMCEG-Gamuda JV

COMPLETION DATE

2007

DETAIL WORKS INCLUDED

• Boreholes & geophysical surveys
• Innovative earth retaining system
• Excessive draw down of groundwater table

SERVICES PROVIDED

• Geotechincal investigation & design


• Retaining wall design


• Construction supervision

LIGHT RAIL TRANSIT (LRT) INFRASTRUCTURE WORKS AT PUTRAJAYA

The Light Rail Transit (LRT) infrastructure works in Putrajaya is from Precinct 1 and passes through Prime Minister Office, Putra Bridge, Boulevard and then split into three lines and ends at Precincts 4 and 18. It comprises 7 numbers of stations and 8.173 km of tunnels. All the stations and tunnels are underground and were constructed by cut and cover method except the portion passing through the lake which was designed by immersing the tunnel in the water and supported on the bed of lake.
LOCATION

Putrajaya

CLIENT

Putrajaya Holdings Sdn Bhd

COMPLETION DATE

2004

DETAIL WORKS INCLUDED

• Sewerage and drainage design for the tunnels and stations
• Structural design of all the underground tunnels, stations, underpasses, ventilation shafts etc.
• Geotechnical investigation, design of the foundation and temporary works for the cut and cover construction
• M&E design for all utility and service connections to the stations and tunnels including temporary mechanical and electrical provision for maintenance

SERVICES PROVIDED

• Geotechnical investigation and foundation   design
• Preparation of tender, detailed and as-built   drawings


• Civil and structural detailed design


• Construction supervision

Integrated Management System
&
Quality Policy

MS ISO 9001:2015 Quality Management Systems

MS ISO 14001:2015 Environmental Management System

MS ISO 45001:2018 Occupational Health and Safety Management System

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