On June 18, the 540-meter Huangtuyu tunnel in the Zunhua-Qinhuangdao section of the Beijing-Qinhuangdao expressway was successfully completed, marking a new phase of the project, and laying a solid foundation for the beam erection of Wenquanpu Bridge.
On the morning of June 18, China Communications Construction Hebei Transportation Expressway Investment Development Co., Ltd. celebrated the 100th anniversary of the founding of CPC & the completion of the 1st tunnel-- the Huangtuyu tunnel, the B8 bid of the Zunqin section of the Jingqin expressway.
The Huangtuyu Tunnel was constructed by the Huazhong Company of the CCCC Tunnel Bureau. It is located on the north side of Nianzigou in Huangtuyu Village. The right line of the tunnel is 540 meters in length.
This area is the middle-low mountainous landform with continuous hills, and the slope of the cave entrance is flat. The lithology is mainly moderately weathered porphyritic granite. The length of the fourth and fifth grades of surrounding rocks is 410 meters, accounting for 76%, and the safety risk is extremely high.
To meet the deadline, the construction unit has conducted more than 300 blasting operations, and the tunnel was finally completed 12 days ahead of the schedule.
The Zunqin section of the Jingqin Expressway is a project of national “13th Five-Year Plan” and provincial key construction. It is also an important part of the “four vertical, four horizontal and one ring” framework for the coordinated development of Beijing-Tianjin-Hebei transportation integration.
The total length is about 165.159 kilometers. The estimated investment is 31.484 billion yuan. The planned construction period is 36 months. It is expected to be completed and opened to traffic by the end of 2022.
Upon the completion of the project, it will play an important role in diverting the traffic volume of the Beijing-Harbin Expressway, forming a fast and direct route from the Beijing-Tianjin-Hebei region to the northeastern China through Tangshan and northern Qinhuangdao. It is of strategic significance to complete the road network, promote coordinated development of Beijing-Tianjin-Hebei region, and fuel the regional economy.
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