The invention discloses a tunnel lining structure uniform load test
system and a sealing method thereof. The tunnel lining structure uniform load test
system comprises a pressurizing
system, a model box and a tunnel lining arranged in the model box, the pressurizing system is a
steel frame pressurizing system and mainly comprises a side beam, a top beam and an oil cylinder, the model box comprises six panels and a force transferring plate, a
pulley is arranged at the bottom of the force transferring plate, the tunnel lining is arranged in the model box, the space between the model box and the tunnel lining is filled with water, oil or lubricating
grease, the model box is a sealed model box, a force transferring medium is changed, so that the sealing performance of the model box is improved, approximate uniform pressurizing at the back of the lining can be realized, load pressure at the back of the lining can be directly controlled, a large-scale similar
model test can be realized, and the tunnel lining structure uniform load test system can be used for researching distress tunnel lining structure carrying performance, a lining crack expanding test and a large-scale flexible stabilization (
carbon fibers and
steel belt) test in tunnel lining carrying performance and structural design and operation.