新华社昆明10月28日电（记者丁怡全、樊曦）28日，随着中铁十六局承建的凤屯隧洞最后一段岩体 成功爆破，滇中引水一期工程楚雄段实现全线贯通，为工程全线通水筑牢基础。 凤屯隧洞由中铁十六局承建，位于云南省楚雄彝族自治州牟定县境内，全长9.87公里。隧洞穿 越"滇中红层"软岩区，最大埋深达630米。工程建设面临深埋隧洞施工难、地下水处理难、破碎断层穿 越难、软岩大变形应对难等施工难题。自隧洞开工建设以来，建设团队构建"超前预报—动态调整—精 准支护"技术体系，通过瞬变电磁法等技术手段构建地质"透视网"，实时掌握围岩动态，克服了易坍 塌、突泥涌水等多种风险。 【纠错】 【责任编辑:焦鹏】 滇中引水工程是国务院要求加快推进建设的172项重大水利工程之一，工程设计从金沙江取水，途 经丽江市、大理州、楚雄州、昆明市、玉溪市，终点为红河州，输水线路全长约664公里。 ...

Group 1: Major Water Conservancy Projects Progress - The Jianghan Water Diversion Project's TBM "Jianghan Ping'an" has successfully excavated over 2,000 meters, achieving a record daily progress of 27.8 meters, laying a solid foundation for entering the main tunnel construction [2] - The Qiong Northwest Water Supply Project's new section of the West Canal has successfully completed the Longling Tunnel, marking the overall connection of the main project and ensuring completion by 2025 [3] - The Chongqing Zhaodu Reservoir Water Supply Project has made significant progress with the successful breakthrough of the challenging 453-meter top pipe section, establishing a foundation for the entire water supply line [4] Group 2: Specific Project Details - The Jianghan Water Diversion Project is part of the South-to-North Water Diversion Project, with a total length of 194.8 kilometers and an average water diversion capacity of 3.9 billion cubic meters [2] - The Qiong Northwest Water Supply Project aims to address agricultural irrigation and urban water supply issues for 630,000 residents, with 91% of the project completed [3] - The Zhaodu Reservoir has a total storage capacity of 201 million cubic meters and includes 18 tunnels and 12 siphons, serving as a critical water supply line for the region [4] Group 3: Additional Project Updates - The Tingzikou Irrigation District Phase I project has completed the lower structure of the canal with the successful pouring of concrete for the last pier, marking significant progress [6] - The Xinjiang Dashi Gorge Water Conservancy Project is expected to start water storage in September, with a total reservoir capacity of 1.17 billion cubic meters, ahead of schedule [7]

Core Viewpoint - The Chinese government is accelerating the construction of major water conservancy projects, with a focus on modernization and infrastructure improvements in various regions [1] Group 1: Project Planning - The National Development and Reform Commission (NDRC) and the Ministry of Water Resources have issued an implementation plan for the "two major" construction in the water sector, emphasizing the modernization of large irrigation areas such as Inner Mongolia's Hetao and Sichuan's Xiangjiaba Phase II [1] - Key projects include the construction of large and medium-sized reservoirs like Guangdong's Huangmaoxia and major flood control infrastructure in the Yangtze River Basin, particularly in the Dongting Lake area [1] Group 2: Financial Support - The average central investment support ratio has increased by approximately 20 percentage points, expanding the support scope to include new medium-sized irrigation areas and water diversion projects [1] - The central investment support ratio for medium-sized projects has been raised to the same level as that for large projects, indicating a significant boost in funding for these initiatives [1] Group 3: Institutional Development - The NDRC and the Ministry of Water Resources will ensure the integration of flood control projects with upstream and downstream connections, as well as the coordination between irrigation projects and high-standard farmland construction [1] - The focus is on enhancing the comprehensive benefits of major infrastructure projects through better connectivity and collaboration among various engineering components [1]