Project Overview
TLEC Engineering carried out the log boom installation works at Vajiralongkorn Dam, operated by the Electricity Generating Authority of Thailand (EGAT).
The project was awarded through a competitive bidding process and executed strictly in accordance with EGAT’s approved design drawings and technical specifications. TLEC Engineering was responsible for construction and installation works in full compliance with the issued standards.
A major technical challenge of this project was rock drilling at steep cliff surfaces for the installation of rock bolts. The drilling rig had to be mobilized and operated on a floating platform, requiring precise alignment, platform stabilization, and strict safety control due to limited working space and proximity to the waterline.
Additionally, underwater diving operations were required to replace submerged sling components. These works demanded experienced divers, careful coordination, and adherence to rigorous safety procedures under low-visibility underwater conditions.
The log boom system was installed at two locations: the Main Dam area and the Downstream area.
Scope of Work
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Mobilization of manpower, heavy equipment, and floating working platforms
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Positioning and stabilization of floating raft for drilling operations
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Rock surface drilling at cliff area for rock bolt installation
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Supply and installation of rock bolts and anchoring systems
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Underwater diving works for sling removal and replacement
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Installation of log boom system in accordance with EGAT specifications
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Implementation of safety management and quality control throughout construction
Project Information
Project Name: Vajiralongkorn Dam Project
Location: Kanchanaburi Province, Thailand
Owner: Electricity Generating Authority of Thailand
(EGAT)
Installation Year: 2023
Log Boom Locations: 2 Locations
Total Installed Length: 419 meters
Main Dam
Replacement: November 2023
Length of Log Boom: 319 meters
No. of Span: 2
