Underground comprehensive multi-cabin pipe gallery axillary angle measuring device and measuring method

The invention relates to the field of underground municipal comprehensive pipe gallery engineering construction, in particular to an underground comprehensive multi-cabin pipe gallery axillary angle measuring device and method. The device comprises a middle-section measurement module, a movable measurement assembly, angle measurement supporting rods, a lifting driving mechanism, a parking assembly, a protractor, a measurement rod, stable attaching blocks and a flexible rule. A scale is arranged on the middle-section measuring module; the mobile measuring assembly is installed on the middle section measuring module. The axilla angle measuring modules are respectively positioned at two ends of the middle-section measuring module; each axilla angle measuring module comprises an axilla angle measuring supporting rod, a lifting driving mechanism, a parking assembly, a protractor and a measuring rod; the stable attaching blocks are located at the ends of the two angle measurement supportingrods respectively, and th