Date: April 2021
Project Name: Cross-street Passage Project of Civil Aviation University Station on Tianjin Metro Line 4
Equipment: 4200*6900 rectangular pipe jacking machine
1 Cross the running sewage pipe, the distance between the bottom of the pipe and the top of the rectangular pipe is less than 3 meters
2 Pass through the running aviation fuel pipe;
3 Crossing the running expressway;
4 The groundwater is large, and the jacking operation is carried out with water;
5 The maximum propulsion pressure is 1,100 tons;
6 The hole exit error is up and down 1CM;
7 Pavement subsidence control plus or minus 5mm warning.
1 This section is our company’s first rectangular pipe jacking machine construction project in Tianjin
2 Two trainees from Tangxing Training School managed the project.
3 The benchmarking project for the extension of Metro Line 4 has reduced overall settlement.
4 Trial site of the prototype of the major special rectangular pipe jacking machine in Anhui Province
5 Investigation site of the Anhui Province Unveiling Project
6 Construction inspection site of the "115" team in Anhui Province