STABILIZATION AND SUPPORT MODEL TEST SYSTEM FOR SURROUNDING ROCK OF LARGE, BURIED, AND DEEP TUNNEL UNDER COMPLEX CONDITIONS

摘要

Disclosed in the present invention is a stabilization and support model test system for a surrounding rock of a large, buried, and deep tunnel under complex conditions. The system consists of a high-pressure water sealing model test chamber, an embedded high hydraulic servo loading system, a high ground temperature regulation and control system, a high seepage water pressure loading system, a micro TBM intelligent tunnelling system, a multi-arm lining system, and a self-sealing high precision test system. The high-pressure water sealing model test chamber is used for accommodating a test model body and a high-pressure water body; the embedded high hydraulic servo loading system provides high ground stress for the test model body; the high ground temperature regulation and control system applies a high ground temperature to the test model body; the high seepage water pressure loading system is used for loading high seepage water pressure to the test model body in all directions; the TBM intelligent tunnelling system can intelligently excavate model caverns having different shapes and sizes; the multi-arm lining system is used for lining support and grouting reinforcement after the model caverns are excavated; and the self-sealing high precision test system is used for testing the displacement, stress, and seepage pressure of any part inside the model test body.