• Tunneling and Pipe Installation
    Tunneling and Pipe Installation

Tunneling and pipe installation for underground utilities involve the use of various mechanical equipment. Quality Powered Mechanical Equipment (QPME) such as excavator, generator and mobile crane which emitted relatively less noise compared with non- QPME are widely available in the territory. Moreover, the employment of some quieter construction methods such as top-down construction method or pipe jacking can also reduce the construction noise generation.

Sound pressure level at 7 meters from equipment

 

Noise reduction for some mitigation measures for reference.

Noise reduction

 

Quieter Construction Methods

Steel-reinforced polyethylene strips

The Spiral Wound Rehabilitation Technology (SPRTMPE) is considered to be one of the quieter construction methods, compared to the traditional "open, cut and replace" method.

Ultra-violet (UV) light train

Cured-In-Place-Pipe (CIPP) Lining with Enhanced Curing Technology is considered to be one of the quieter construction methods, compared to the conventional "open, cut and replace" method.

Liner is pulled into the host pipe

Cured-In-Place Pipe (CIPP) Lining is considered to be one of the quieter construction methods, compared to the traditional "open, cut and replace" method.

 

 

Tunnel Boring Machine

Unlike cut and cover method,  construction work of using tunnel boring machine takes place mainly underground, which signaficantly reduce noise, dust and disruption to nearby NSRs.