Optimization of Grouting Construction Technology for the Top Arch Backfill of the New Austrian and French Highway Tunnel
Taking Zechu F0 highway project in Georgia as the main research object,this paper expounds the lay-out requirements of grouting pipe,grouting hole and grouting pipe in detail,and optimizes the grouting construc-tion technology of arch backfill.On this basis,the possible leakage phenomenon and the grouting pressure treat-ment measures are discussed in detail.The results show that,by comparing the construction process before and af-ter optimization,it is found that the optimized process has significant advantages in the construction period,grout-ing effect,lining structure beauty,material cost and labor cost,etc,it has significant popularization value and ap-plication prospect,and can provide reference for the design and construction of top arch backfill grouting in rail-way,water control,subway and other projects.
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维普
