Long-time under-pressure cabin opening equipment and process for shield

The invention relates to the technical field of shield tunneling machine cabin opening operation, in particular to shield long-time under-pressure cabin opening equipment and technology.The shield long-time under-pressure cabin opening equipment comprises a detection device for detecting and replacing a hob of a shield tunneling machine, the detection device comprises a supporting panel, a supporting frame making contact with the hob is arranged at one end of the supporting panel, and a detection mechanism is arranged on the supporting panel; the detection mechanism is used for detecting the abrasion degree of the shield tunneling machine hob; the detection mechanism comprises a detection hole formed in the supporting panel, a detachable detection plate is arranged in the detection hole, and a plurality of detection marker posts are arranged on the detection plate in a sliding and penetrating mode. A worker can quickly judge whether the hobs need to be replaced or not, and the worker does not need to use a sp