On June 26, 2021, with the sound of firecrackers and mechanical roars, the left tunnel of the Fengcheng tunnel exit of the Daqing project undertaken by Gansu Road and Bridge Construction Group was formally entered into the tunnel, marking that the general contracting department of Gansu Road and Bridge Daqing Project is advancing the project A solid first step has been taken in the construction progress, which also marks a substantial breakthrough in the Daqing highway construction project.

Fengcheng Tunnel is located in Xuanma Town, Qingcheng County, Qingyang City. The right line mileage is YK72+288-YK74+708, which is 2420 meters long, and the left line is ZK72+300-ZK74+714, which is 2414 meters long and is the largest tunnel. The burial depth is about 170 meters, and the sections through which the tunnel body passes are all V-grade surrounding rocks. The tunnel exit ditch bank collapses on both sides, landslides are developed, and the stability is poor. Since entering the site, the general contracting department of Gansu Luqiao Daqing Project has organized technical personnel to conduct detailed survey and review of the original landforms. Through careful study of construction drawings, comprehend the design intent, formulate special construction plans, develop detailed construction plans, and conduct detailed construction plans based on the plan. The production factors such as materials and machinery were planned in advance, laying the foundation for the smooth construction of Fengcheng Tunnel.

Keywords: engineering construction, Gansu enterprises

In the subsequent construction, the project department will pay close attention to safety management and implement quality control measures to ensure the orderly progress of the project.Editor/Xing Wentao