广安前锋区至巴中平昌县车程缩短至1个多小时 镇广高速冯家隧道。 12月26日，全国首条红色主题高速公路——镇巴（川陕界）至广安高速公路（以下简称"镇广高速"）通 江至广安段白衣互通至虎城枢纽互通100公里路段正式建成通车，标志着广安市前锋区至巴中市平昌县 的车程将由原来的近3小时大幅缩短至1个多小时；镇广高速全线通车里程过半，秦巴山区融入成渝地区 双城经济圈的步伐进一步加快。 交通与文旅在这100公里路段实现深度融合——沿线串联起邓小平故里、红色渠县纪念园、华蓥山游击 队遗迹等多个红色地标，形成一条熠熠生辉的红色旅游经济带，为传承红色基因、推动文旅融合提供了 重要交通支撑。 创新收费模式提高通行效率 建设过程中，创新技术成为破局关键。镇广高速控制性工程白马渠江特大桥全长657.8米，主桥以390米 净跨一跨过江，建设者创新工艺工法，通过缆索吊装系统实现钢结构90度或180度空中翻身，完成大吨 双向四车道设计时速100公里 镇广高速是《四川省高速公路网布局规划（2022-2035）》确定的13条纵线之一，线路全长250.825公 里，由川陕界至王坪段、王坪至通江段和通江至广安段组成，其中王坪至通江段已于2022 ...

Core Viewpoint - The completion of the Yong'an Long Tunnel marks a significant milestone in the construction of the "first red-themed expressway in the country," the Zhan-Guang Expressway, which is expected to enhance transportation and tourism in the region [1][6]. Group 1: Project Overview - The Yong'an Long Tunnel, located in Tongjiang County, is the longest tunnel of the Zhan-Guang Expressway, with a left tunnel length of 6,862 meters and a right tunnel length of 6,825 meters, reaching a maximum depth of 580 meters [3]. - The Zhan-Guang Expressway has a total length of 250.825 kilometers and a total investment of 48.9089 billion yuan, designed for a speed of 100 km/h [6]. Group 2: Construction Progress - Currently, the excavation, filling, tunnel, and pile foundation construction of the Zhan-Guang Expressway from the Sichuan-Shaanxi border to Wangping has exceeded 70%, with the construction of piers and caps progressing past the halfway mark [4]. - The project team has implemented a dual guarantee system of "risk prediction + precise control" to address complex geological conditions, utilizing advanced intelligent equipment for construction [3]. Group 3: Technological Innovations - The project has introduced advanced intelligent equipment, reducing the number of workers in single tunnel operations by 20% and shortening drilling and blasting operation time by 20%, while doubling the efficiency of arch installation [3]. - The use of smooth blasting technology and innovative lining techniques has achieved a lining qualification rate of over 99%, ensuring high-quality construction [3]. Group 4: Economic and Social Impact - Upon completion, the Zhan-Guang Expressway will connect several significant red tourism sites, forming a "3-hour red tourism circle" and improving travel conditions for local communities [6]. - The expressway is expected to inject new momentum into the revitalization and development of the old revolutionary areas in Sichuan and Shaanxi [6].

Core Viewpoint - The completion of the Yong'an Long Tunnel marks a significant milestone in the construction of the Zhan-Guan Expressway, which is a key transportation route connecting Shanxi Province and Sichuan Province [1][3]. Group 1: Project Overview - The Zhan-Guan Expressway, with a total length of 250.825 kilometers, is designed with a dual four-lane standard and a speed limit of 100 km/h [3]. - The expressway consists of three segments: the section from the Sichuan-Shaanxi border to Wangping, Wangping to Tongjiang, and Tongjiang to Guang'an, with the Wangping to Tongjiang section already completed [3]. Group 2: Engineering Challenges and Innovations - The Yong'an Long Tunnel, the longest tunnel on the Zhan-Guan Expressway, has a left tunnel length of 6,862 meters and a right tunnel length of 6,825 meters, with a maximum burial depth of 580 meters [3]. - The construction team utilized advanced intelligent geological detection equipment to identify potential hazards and implemented "mechanization replacing manpower and intelligence reducing manpower," resulting in a 20% reduction in personnel for single tunnel operations and a 20% reduction in drilling and blasting work hours [3]. - The use of smooth blasting technology minimized disturbances to surrounding rock, thereby reducing safety risks during construction [3]. Group 3: Current Progress and Future Plans - As of now, the construction progress of the Zhan-Guan Expressway from the Sichuan-Shaanxi border to Wangping has exceeded 70%, with more than half of the pier and cap beam construction completed [4]. - The Tongjiang to Guang'an section is expected to be completed and open to traffic by the end of 2025, covering a distance of 100 kilometers [4].