In-situ frozen soil vane shear apparatus

An in-situ frozen soil vane shear apparatus, comprising:

• a support frame, wherein the support frame is provided with a walking assembly for facilitating movement;
• a locking mechanism, comprising a plurality of locking assemblies arranged on the support frame, wherein the locking assemblies extend out of the support frame and are configured for adjusting balance of the support frame, and the locking assemblies are configured for locking the support frame onto a frozen soil ground;
• a lifting mechanism, comprising a lifting frame arranged on the support frame, wherein the lifting frame is movably connected with a lifting assembly liftably arranged for controlling shear tests on frozen soil at different depths;
• and
• a shear mechanism, comprising a shear motor arranged on the lifting assembly, wherein an output end of the shear motor is in transmission connection with a shear assembly telescopically arranged, and the shear assembly is internally provided with a circulation assembly for controlling temperature in a circulating manner;
• wherein the lifting frame is provided with a detection mechanism for detecting a geological environment below, the detection mechanism comprises a detection assembly movably arranged at a bottom end of the lifting frame, and the lifting frame is internally provided with an adjustment assembly for controlling movement and fixation of the detection assembly;
• the detection assembly comprises a detection groove opened below the lifting frame, a detection frame is detachably connected within the detection groove, and the detection frame is capable of moving into and out of the detection groove driven by the adjustment assembly;
• the adjustment assembly comprises an adjustment module for controlling lifting and rotation of the detection frame and a locking module for supporting and locking the detection frame, the locking module comprises a locking hole penetratingly opened in the lifting frame, a locking rod is movably arranged in the locking hole, a bottom end of the locking rod extends out of the locking hole and is perpendicularly and fixedly connected to one end of a support plate, a top end of another end of the support plate is provided with a flexible contact block, and the contact block is configured for supporting a free end of the detection frame;
• a bottom end of the detection frame is provided with a contact groove adapted to the contact block, and when supporting and locking the detection frame, the contact block is clamped in the contact groove;
• and
• the bottom end of the locking rod is provided with a prismatic guide section, a bottom end of the locking hole is provided with a locking section adapted to the guide section, when not in use, the locking section is pushed up and engages with the guide section, and when in use, the locking rod is pressed down, causing the guide section to move down and disengage from the locking section.