SDHS(SH:600350) Qi Lu Wan Bao Wang·2025-06-27 05:19Core Viewpoint - The opening of the Yantai hub to Penglai hub section of the Rongwu Expressway marks the first "dual eight-lane" expressway in the Yantai area, significantly improving traffic conditions and connectivity to Penglai International Airport [1][3]. Group 1: Project Overview - The newly opened section is 8.1 kilometers long and includes two interchanges, one toll station, and one service area [3]. - The existing Rongwu Expressway from Yantai to Penglai was built between 1998 and 2003, covering a total length of 61.217 kilometers, and has been unable to meet the growing social and economic demands [3]. Group 2: Construction and Technology - The project adopted innovative construction techniques, including UHPC and ECC for bridge reinforcement, achieving significant improvements in structural performance, stiffness, and durability [5]. - Non-excavation grouting technology was used to address hidden cracks and deterioration in the old road, ensuring 100% treatment of concealed diseases while protecting the original structure [5]. Group 3: Future Goals - The project aims to establish a model for coastal city bypass expressway reconstruction, focusing on smart empowerment, quality craftsmanship, and innovative efficiency improvements [5].