[Shantou Bay Tunnel Ludao No. shield machine off the production line] On February 21, 2023, a Tunjima shield machine with the pattern of a brave tiger shark painted on the cutter head was completed and rolled off the production line smoothly. This is a domestically produced large-diameter mud-water balance shield machine jointly built by China Railway 14th Bureau and China Railway Construction Heavy Industry Group. It will be used in the construction of the Shantou Bay Tunnel on the Shantou Guang'ao Port Area Railway, and will soon start a journey through the sea. Shantou Guangao Port Railway is located in Shantou City, Guangdong Province. It starts from Shantou Station of Guangmeishan Railway in the north and ends at Guangao Port in the south. The Guangzhou-Macao Port Area Railway Line 1 has a total length of 17.116 kilometers, including a tunnel, two bridges and other construction content. The Shantou Bay Tunnel is a key and difficult control project of the project, with a total length of 9965 meters, of which the shield section is 2990 meters long. The segment has an outer diameter of 12.9 meters and an inner diameter of 11.8 meters. The excavation diameter of the cutter head of the Tunnel Tunneling Machine on the Gudao Island is 13.42 meters, the total length of the shield machine is 126 meters, the weight of the whole machine is about 3,300 tons, and the total installed power is 9,300 kilowatts. The shield cutter head has the functions of normal pressure tool change, hob exchange, hob wear detection, speed detection, and temperature detection. In order to deal with the problem of low construction efficiency in hard rock formations, the distance between cutterheads and cutters of the shield machine has been further reduced, and pressure hobs have been added to help improve rock breaking efficiency. The cutter head is equipped with a total of 185 cutters, of which 89 can be replaced under normal pressure, realizing full coverage of the cutter head's excavation trajectory. Editor / Zhao E

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• 2024.10.09 10:18
• [Qiongzhou Strait transportation new energy vehicle ship successfully docked]
• On the afternoon of October 8th, under the on-site escort of the Guangdong Zhanjiang Maritime Bureau's "Haixun 0927" ship, the first flatbed cargo ship dedicated to the transportation of new energy vehicles in the Qiongzhou Strait, the "Green Source No. 1" ship, slowly entered the Xuwen Hai'an New Port, marking the successful trial operation of the ship's roll on/roll off transport route in the Qiongzhou Strait. It is reported that the deck cargo ship "Green Source No.1" has a total tonnage of 6731, a net tonnage of 3769, a length of 125.8 meters, and a width of 28 meters. The ship adopts a single-layer deck design, which can carry more than 160 new energy vehicles on a single voyage under full load conditions. The parking capacity is about 60% higher than that of existing passenger and roll on/roll off transport ships. The ship is planned to be deployed on the route from Hai'an New Port in Zhanjiang to Xiuying Port in Haikou. After being put into operation, it will add a new mode of sea transportation for new energy vehicles in the Qiongzhou Strait and effectively alleviate the tense situation of insufficient capacity for new energy vehicle transportation during the peak period of cross sea vehicle transportation in the Qiongzhou Strait. Editor/Zhou Yingwen

• 2024.10.09 10:15
• [Malaysia's energy transition has made progress]
• On October 9, 2024, Malaysian Deputy Prime Minister Fadhila stated that Malaysia has made progress in improving energy efficiency and that "energy conservation" has become the key to energy transition. Meanwhile, Malaysia will promote the ASEAN power grid as a key topic of discussion at the ASEAN Energy Ministers' Meeting. At the 2024 Asia Power and Energy Exhibition, which opened on the 8th, Fadhila revealed that as of June, Malaysia has saved 8769 gigawatt hours of electricity, worth over 2.2 billion ringgit, and plans to reduce 38 million tons of carbon dioxide emissions by 2025. In addition, the Malaysian government has approved the establishment of an energy exchange aimed at selling green electricity to neighboring countries. As the rotating chair of ASEAN in 2025, Malaysia will promote the construction of the ASEAN power grid to promote the promotion of renewable energy and enhance the resilience and reliability of electricity supply in ASEAN member countries. Editor/Zhou Yingwen