Keywords: transmission lines, power engineering, power construction
On May 25th, the first iconic 100 meter double leg tower of the 275kV cross sea transmission line project in Penang, Malaysia was successfully closed.
The double leg tower that was closed this time has a betel nut shaped steel structure with a height of 100 meters and is divided into 11 sections. The entire cross section of the double leg tower smoothly transitions from an equilateral hexagon to an equilateral quadrilateral from bottom to top, forming a double leg triangular closure section at the top. The sections are connected by internal bolts, and the entire structure is difficult to implement from design to manufacturing to installation.
In order to successfully complete the installation of the double leg tower, the project department has prepared a special construction plan, demonstrated it, conducted risk assessment and disclosure in advance, continuously collected, statistically analyzed and predicted the wind speed, flow velocity, and tropical marine climate on site, accurately calculated the optimal time period suitable for the installation of a 100 meter double leg tower, and provided professional high-altitude and enclosed space operation training for personnel engaged in steel tower installation operations, and certified them to work.
The project site adopts a 600 ton large floating crane for segmented installation, and each section of the double leg tower is an eccentric structure. Before lifting the last closed section, the center of gravity of the lifting posture is accurately calculated, and the lifting equipment is adjusted reasonably. Finally, the construction operation is successfully completed.
The successful closure of the first 100 meter double leg tower of the 275kV cross sea transmission line project in Penang, Malaysia, lays a solid foundation for subsequent line construction and overall project completion. The project team will continue to maintain a good momentum, do a good job in safety and quality control, and make every effort to promote on-site production, as a tribute to the 50th anniversary of the establishment of diplomatic relations between China and Malaysia.
Home
