Research on construction technology of roof retaining wall in entrance and exit sections of intercity railway
During the construction of the retaining wall at the entrance and exit section of the intercity railway,due to the colli-sion between the retaining wall and the concrete support,one side of the retaining wall needs to be close to the shield tunnel,re-sulting in the absence of scaffolding foundation at that location.In order to ensure project progress,it is proposed to install I-beams at the shield tunnel mouth as the foundation of the scaffolding,and to ensure the stability of the scaffolding by pulling on both sides of the scaffolding,solving the difficulty of setting up the retaining wall framework.Finally,a complete set of construc-tion techniques for wall model tensioning,steel bar planting and concrete pouring were summarized.The practice has shown that this construction technology is feasible,avoiding the impact of retaining wall construction on shield tunneling temporary construc-tion and optimizing the construction working face.
retaining wallscaffoldingoptimizationconstruction face
NETL
NSTL
万方数据
维普
