新宜高速开建，川南再添交通大动脉

Core Viewpoint - The construction of the Xinyi Expressway, a significant infrastructure project in Yibin, is expected to enhance regional connectivity and stimulate economic development in the Sichuan province, with a total investment of approximately 14.3 billion yuan and a construction period of four years [1]. Group 1: Project Overview - The Xinyi Expressway spans 65 kilometers for the main line and 24.3 kilometers for connecting lines, with a total investment of about 14.3 billion yuan and a construction period of four years [1]. - The project will significantly reduce travel time from Yibin city to Xinshi Town in Pingshan County from over two hours to under one hour [1]. - The expressway will connect multiple major highways, facilitating multi-directional connectivity with Yunnan, Chongqing, and Chengdu [1]. Group 2: Technical Challenges - The expressway features a bridge-tunnel ratio of 66.25%, indicating that approximately two-thirds of the route will involve crossing mountains and rivers, which increases construction complexity and costs [2][3]. - The project includes 48 bridges and 8 tunnels, with significant engineering challenges such as the 7.3-kilometer Zhengjiashan Tunnel, which requires extensive safety measures against high-pressure water and gas leaks [2][3]. - The geological conditions present additional challenges, including the need for slope stabilization and foundation reinforcement due to the presence of karst topography and soft soil [3]. Group 3: Economic Impact - The Xinyi Expressway will serve as a crucial link between the southern Sichuan economic zone and the Panxi economic zone, providing a direct transportation route for mineral and clean energy resources [4]. - The expressway will reduce logistics costs and travel distances for transporting resources from the Panxi region to Yibin, enhancing regional economic collaboration [4]. - The project is expected to create approximately 8,000 jobs during peak construction, contributing an estimated 8 million yuan in income to local residents [5]. Group 4: Regional Development - The expressway will facilitate the integration of local agricultural products into broader markets, enhancing the economic prospects for local farmers [5]. - It will also support the development of the photovoltaic industry in the region by improving the transportation of equipment and components [5]. - The project aims to promote tourism by connecting local attractions within a one-hour travel radius, contributing to rural revitalization and industrial upgrades [5].