Method for improving concrete pouring efficiency and compactness of tunnel secondary lining arch wall

The invention discloses a method for improving concrete pouring efficiency and compactness of a tunnel secondary lining arch wall. The method comprises the following steps that during arch wall construction, a steel form trolley is used as a form, a plurality of pouring ports and grouting holes with forms are arranged on the steel form trolley, and an end form is blocked by using a small steel form; during pouring, a pump pipe is connected into an end pouring port, all pouring port flashboards are opened, high-performance micro-expansion self-compacting concrete is poured, the pouring port does not need to be switched in the pouring process, the single pouring port is used for extruding and pushing the concrete to the distal end for pouring, and the pouring compaction condition is judged considering the grout overflow condition of the grouting holes with the forms and the end form. and after pouring is completed, grouting with a form provided is conducted immediately, and thus the pouring efficiency and the p