Comprehensive test device for precast concrete lining segment

The invention designs a comprehensive test device for a precast concrete lining segment. The invention belongs to the technical field of segment performance testing. The device comprises a jack, an oil pump, a water pump and a segment displacement sensor, output ends of the segment displacement sensor, a pressure sensor, a jack displacement sensor and an oil pressure sensor are connected with an input end of a controller; the controller is connected with a display device, the test device further comprises a frequency converter which is connected with an output end of the controller, an outputend of the frequency converter is connected with a motor of the oil pump through a first alternating current contactor and connected with a motor of a metering pump through a second alternating current contactor, and an oil outlet valve, an oil return valve and a water outlet valve are all connected with the output end of the controller. And when the oil pressure is reduced, the oil pump can compensate in time, and the me