Operation tunnel deformation control construction method

The invention provides an operation tunnel deformation control construction method which comprises the steps that grouting reinforcement is conducted on a surrounding stratum of an open cut foundation pit, specifically, high-pressure rotary jet grouting is conducted on an outer soft soil layer of the open cut foundation pit, and MJS rotary jet grouting reinforcement is adopted at the preset distance from the pit bottom of the open cut foundation pit to the upper portion of an existing tunnel; steel ring installation is conducted on shield tunnel segments, specifically, the steel rings are installed after pipeline drainage changing, tunnel leakage water treatment and crack repairing treatment are conducted, epoxy resin pressure injection work is conducted on the steel rings, and anti-corrosion coatings are sprayed on the steel rings; and monitoring and measuring the existing tunnel. Through the method, the influence of open excavation construction of a newly built subway line on a penetrated operated subway sh