Full-artificial underground chamber surrounding rock displacement monitoring method

The invention provides a full-artificial underground chamber surrounding rock displacement monitoring method, and belongs to the technical field of underground chamber monitoring, and the method comprises the steps: arranging a measurement section on a chamber at the early stage of excavation, and arranging a first soil pressure box and a multi-point displacement meter on an anchor rod near the measurement section, so as to monitor the rock mass stress change of a rock mass excavation section, according to data monitored by the first soil pressure box and the multi-point displacement meter, the rock mass deformation condition of the excavated section is judged; the stress change between the primary support and the secondary lining is monitored through a second soil pressure box; through arrangement of the first soil pressure box, the multi-point displacement meter and the second soil pressure box, the change condition of the chamber structure in the construction period is mastered in time, so that constructio