央视网消息：记者8月27日从国家管网集团获悉，位于新疆伊犁的西气东输果子沟管道工程的控制性工程，1号山岭隧道成功贯通。工程建 设历时一年，全长近6公里，创下多项行业纪录。 果子沟地处西天山腹地，是西气东输二线、三线穿越天山山脉的必经之路，由于该地区地质地貌复杂，地质灾害频发，对西气东输管道系 统的平稳运行构成挑战。此次建设管道工程包括4条长距离山岭隧道，是目前国内油气管道领域单次掘进长度最长、断面尺寸最大、海拔最 高、高差最大的山岭隧道项目。 国家管网集团西部管道公司果子沟段项目执行经理 于士春：新建管道里程32公里，采用双管同沟铺设，管道建成后与在役管道联合运 行、互为备用，可提高西二三线管道系统整体安全性。 据了解，西气东输二三线果子沟管道工程预计2027年9月全线投产。截至目前，西气东输二线、三线管道已累计输送天然气超5570亿立方 米，惠及了管道沿线5亿人口。 走进隧道施工现场 感受大国工程硬核科技 天山腹地地质地貌复杂，作为油气管道领域单次掘进长度最长、高差最大的隧道项目，是如何实现安全施工的？来看记者在隧道贯通前从 施工现场带来的观察。 国家管网集团西部管道公司果子沟段项目执行经理 于士春：目前系 ...

Group 1 - The Liaoning Taizhe River Pumped Storage Power Station project is a key energy project under China's 14th Five-Year Plan, with a total investment of 12.145 billion yuan and an installed capacity of 1,800 megawatts [1][3] - The project is expected to generate an annual power output of 3.614 billion kilowatt-hours and an estimated annual revenue of 1.6 billion yuan [1] - The construction is progressing rapidly, with the project having completed over 30 specialized research reports in just 10 months, marking the fastest approval speed for pumped storage projects in Liaoning Province [3] Group 2 - The project incorporates advanced technologies such as IoT, big data, AI, 5G, and BIM for digital and intelligent transformation, aiming to enhance safety, efficiency, and environmental management [2] - The construction site features a ventilation and safety tunnel with a total length of 1,428 meters, of which 593 meters have been excavated [2] - The power station will play a crucial role in grid peak regulation, energy storage, frequency modulation, and emergency backup, contributing positively to the economic development of Northeast China and improving local living standards [3]

Core Insights - The Guangxi Water Resource Allocation Project has achieved significant milestones with the early completion of the Mutoulu Tunnel, which was finished 72 days ahead of schedule, and the successful connection of the Chicken Spirit Tunnel's first branch tunnel to the main tunnel [1][2] Group 1: Project Achievements - The Mutoulu Tunnel, measuring 811.24 meters, faced challenges due to poor surrounding rock conditions but was completed ahead of the original contract period [1] - The Chicken Spirit Tunnel's first branch tunnel, approximately 735 meters long, successfully connected to the main tunnel after six months of continuous work [2] Group 2: Construction Techniques and Safety Measures - The construction team implemented strict safety measures and adhered to principles such as "advanced management, strict grouting, short advance, strong support, early closure, and frequent measurement" to ensure safety during the Mutoulu Tunnel's construction [1] - Advanced geological forecasting methods, including TSP and geological radar, were employed to monitor and adjust construction processes dynamically, reducing risks [1][2] Group 3: Project Significance - The Guangxi project is a key national water network initiative, progressing at a rate of 126 meters per day, and aims to create a 491-kilometer "underground galaxy" beneath karst terrain [2]

Core Points - The successful reopening of the De-Da Line at Dongying South Station, constructed by China Railway Construction Engineering Group, supports the comprehensive construction of the Jinwei High-speed Railway and optimizes the regional transportation network, enhancing transportation efficiency [2][3] - The new Dongying South Station features an elevated station design with a total construction area of 74,120 square meters, including a station building area of 39,996 square meters, and consists of 7 platforms and 20 tracks [3] - The Jinwei High-speed Railway is a crucial part of the national "Eight Vertical and Eight Horizontal" high-speed rail network and will significantly improve transportation links between Beijing, Tianjin, and the Shandong Peninsula, promoting regional resource sharing and economic collaboration [3] Construction Challenges and Innovations - The construction team faced challenges such as tight schedules and complex working environments, implementing several innovative measures to ensure smooth progress, including safety protection, smart management, progress control, and technical breakthroughs [3] - A comprehensive safety protection system was established using steel protective sheds for full enclosure of the De-Da Line, ensuring operational safety [3] - A "smart construction site" system was developed for construction simulation and plan optimization, allowing for dynamic adjustments to construction processes [3] Future Development and Commitment - China Railway Construction Engineering Group is committed to high-quality construction, emphasizing integrity, intelligence, technology, and management to create benchmark buildings and drive transportation development in Dongying and surrounding areas [4]