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المقيمون بمثابة "مراقبين".. تتغلب شركة سانغ يونغ للهندسة والإنشاء على مشاكل الكثافة السكانية والأرض اللينة
2017-10-30
March 12th, Thomson East Coast Line TEL 308 construction site, in the vicinity of Marine Parade, Southeastern Singapore. High sound barriers are installed to prevent noise from the construction site, located in the vicinity of an apartment complex. Schools and apartment complexes surrounds the construction site. In order to minimize civil complaints and to stabilize the construction site, various measuring instruments such as water gauge, dipper, inclinometer, and noise meter were installed in a dense network.
The TEL 308 is a construction site that connects the southern and eastern seaboard areas of the Thomson East Coast Line, running across the north-south of Singapore. Ssangyong E&C must set up two 1.34km-long tunnels and a station named 'Marine Terrace' in the 1.78km zone. The goal is to complete the construction in 2023.
It is considered to be a highly complex and difficult area due to surrounding concentration of residential buildings and weak ground foundation. The areas around the construction site were originally a white sand beach on the coast, but residential developments filled the beach.
Apartment buildings adjacent to the site provide a bird’s eye view. This means there are a lot more watchful eyes gazing at the construction site. The area is even described by the Land Transport Authority (LTA) as an “area with a lot more supervisors than just us.”
Dong Hoon Ryu, Ssangyong E&C Site Manager (pictured) said, "the residents always watch the situation on the site and we feel like as if we are players in a football stadium." “In addition to perfecting construction processes and safety, we pay special attention to noise and dust generation,” he said.
“We need more foundational groundwork than other sites with better ground conditions, because this site is sitting on a very sandy ground," added Ryu. "We use the underground continuous wall method considering the soft ground conditions." The underground continuous wall method involves an installation of continuous reinforced concrete structural panel on the ground. A stabilizing liquid (bentonite) that keeps the soil from falling down is utilized during the process of building these walls.
Ssangyong E & C applies a top-down method to minimize the interruption of road traffic during the construction of the subway station. This method involves building an underground continuous wall in the ground and then finishing construction of the ceiling of the subway first, prior to building the lower structures. Once the ceiling construction is over, the roads can be used as originally.
Ssangyong E&C holds a 75% stake in the company as a leading contractor and works with Hyundai E&C (25%) in a joint venture. The joint venture was awarded the order for the TEL 08 site from the LTA in January last year for about 305 billion won. Although the Korean firms’ bid was not the lowest price bid, it received high marks thanks to technological capability. Ssangyong E&C reportedly received superior scores non-price categories compared to other companies in the bidding process that used the price quality method (PQM). PQM comprehensively evaluates construction capability, technology, safety management, and management evaluation.
Ssangyong E&C was also thorough in safety management. In TEL 308, the firm has achieved 1 million accident-free man-hours from the start of January last year until July of this year, receiving the Safety and Health Award Recognition for Projects (SHARP) award from Singapore’s Ministry of Manpower.
The TEL 308 was ed for the Gold Award by the Health & Safety Awards hosted by the Royal Society for the Prevention of Accidents (RoSPA) last September.