东北省际高铁首次形成闭环（产经观察·收官之际看工程）

Core Viewpoint - The 20th Central Committee of the Communist Party of China emphasizes the importance of expanding domestic demand as a strategic foundation, promoting interaction between consumption, investment, supply, and demand, while highlighting the significance of major infrastructure projects for stabilizing investment and employment, as well as enhancing long-term development [1] Group 1: Infrastructure Development - The Shenyang to Changbai Mountain high-speed railway (Shenbai High-speed Railway) spans approximately 430 kilometers, connecting Liaoning and Jilin provinces, and forms a closed-loop high-speed rail network in Northeast China [2][5] - The Shenbai High-speed Railway is a key project under the national "14th Five-Year Plan" and serves as an important connecting line in the "eight vertical and eight horizontal" main passageways [7] - The railway significantly reduces travel time from Shenyang to Changbai Mountain from 3 hours and 24 minutes to 1 hour and 53 minutes, and from Beijing to Changbai Mountain from 5 hours and 56 minutes to 4 hours and 33 minutes, enhancing accessibility for tourists [8] Group 2: Economic and Tourism Impact - The opening of the Shenbai High-speed Railway is expected to activate the tourism economy in Northeast China, particularly benefiting the Changbai Mountain area and surrounding cities like Fushun, Tonghua, and Baishan [8] - In its first month of operation, the Shenbai High-speed Railway transported over 660,000 passengers, with a maximum of 64 trains operating daily [9] Group 3: Technological Innovations - The construction of the Shenbai High-speed Railway incorporates advanced technologies to address challenges posed by the region's harsh climate, including frost heave and snow damage [10] - New design techniques and construction methods have been implemented to enhance project efficiency and reduce costs, such as using a dual control system for soil stabilization and automated platforms for construction [11][12] Group 4: Environmental Considerations - The railway features sound barriers designed to protect endangered species like the Chinese merganser, effectively reducing noise pollution by approximately 20 decibels [13] - Efforts have been made to preserve local ecosystems, including the use of tunnel construction to protect ancient trees during the building process [14] - The railway's design includes a high bridge-to-tunnel ratio of 77%, minimizing land disruption and promoting ecological harmony [15]