Abstract: Disclosed a combined rock-breaking TBM tunneling method in complex strata for realizing three-way force detection, comprising the steps of preparing a combined mechanical-hydraulic rock-breaking cutter head for TBM construction; starting construction; advancing the combined mechanical-hydraulic rock-breaking cutter head; pushing and pressing against a tunnel face by a mechanical cutter tool; subjecting a three-way force detection cutter to squeezing forces; feeding back three-way force data by a three-way force sensor; processing information by a TBM back-end control processor; obtaining a value of rock-cutter contact angle ?; feeding back parameter information to a TBM cutter head control center by a lithology index center; responding by the TBM cutter head control center, obtaining and adjusting parameters by the mechanical cutter tool equipped with the three-way force sensor; and breaking rock by the combined mechanical-hydraulic rock-breaking cutter head.

Abstract: The present disclosure discloses a rock high-stress high-temperature micro-nano indentation test system, comprising: an X, Y, Z three-direction macroscopic adjustment module, an indentation precision loading module, an indentation test module and an indentation data processing module. The rock high-stress high-temperature micro-nano indentation test system further comprise a two-dimensional horizontal stress loading device, a temperature control device and a vacuum device 13. The rock high-stress high-temperature micro-nano indentation test system provided by the present disclosure has distinctive features of modularity and structuralization, and its test results have high accuracy. The rock high-stress high-temperature micro-nano indentation test system is easy to operate, and provides a theoretical and technical system support for testing the mechanical characteristics of the rock under the high-stress and high-temperature environment in the deep region.

Abstract: The disclosure provides a device and method for measuring radon release amount during rock shearing damage process. The method includes: the sealed chamber where the rock sample placed is vacuumed in the first place, and then the radon released during rock sample shearing damage process is all collected into the radon collection box, and then the concentration of the radon collected in the radon collection box is measured with a radon concentration measure instrument, so that the purity of the radon collected in the radon collection box can be ensured, and thus the accuracy of the concentration of radon measured by the radon concentration measure instrument can be ensured, and the device and method have good practicability.

Abstract: The present disclosure discloses a rock high-stress high-temperature micro-nano indentation test system, comprising: an X, Y, Z three-direction macroscopic adjustment module, an indentation precision loading module, an indentation test module and an indentation data processing module. The rock high-stress high-temperature micro-nano indentation test system further comprise a two-dimensional horizontal stress loading device, a temperature control device and a vacuum device 13. The rock high-stress high-temperature micro-nano indentation test system provided by the present disclosure has distinctive features of modularity and structuralization, and its test results have high accuracy. The rock high-stress high-temperature micro-nano indentation test system is easy to operate, and provides a theoretical and technical system support for testing the mechanical characteristics of the rock under the high-stress and high-temperature environment in the deep region.

Abstract: Disclosed a combined rock-breaking TBM tunneling method in complex strata for realizing three-way force detection, comprising the steps of preparing a combined mechanical-hydraulic rock-breaking cutter head for TBM construction; starting construction; advancing the combined mechanical-hydraulic rock-breaking cutter head; pushing and pressing against a tunnel face by a mechanical cutter tool; subjecting a three-way force detection cutter to squeezing forces; feeding back three-way force data by a three-way force sensor; processing information by a TBM back-end control processor; obtaining a value of rock-cutter contact angle ?; feeding back parameter information to a TBM cutter head control center by a lithology index center; responding by the TBM cutter head control center, obtaining and adjusting parameters by the mechanical cutter tool equipped with the three-way force sensor; and breaking rock by the combined mechanical-hydraulic rock-breaking cutter head.

Abstract: A ring shear and seepage-coupled apparatus and a ring shear and seepage-coupled test system for rock and rock fracture under tension or compression stress are provided, relating to the technical field of mechanical testing devices. As to the ring shear and seepage-coupled apparatus, an axial piston rod is connected with an upper shear box, a torque transferring shaft is connected with a lower shear box, an axial force transducer is provided on the axial piston rod, a torque transducer is provided on the torque transmitting shaft, and a force transferring plate is fixedly connected onto the upper shear box. The force transferring plate is able to transmit a counter force for exerting a torque. Radial and circumferential seepage tests can be achieved by providing a seepage structure. The ring shear and seepage-coupled test system comprises a servo pump and the ring shear and seepage-coupled apparatus as mentioned above.

Abstract: A ring shear and seepage-coupled apparatus and a ring shear and seepage-coupled test system for rock and rock fracture under tension or compression stress are provided, relating to the technical field of mechanical testing devices. As to the ring shear and seepage-coupled apparatus, an axial piston rod is connected with an upper shear box, a torque transferring shaft is connected with a lower shear box, an axial force transducer is provided on the axial piston rod, a torque transducer is provided on the torque transmitting shaft, and a force transferring plate is fixedly connected onto the upper shear box. The force transferring plate is able to transmit a counter force for exerting a torque. Radial and circumferential seepage tests can be achieved by providing a seepage structure. The ring shear and seepage-coupled test system comprises a servo pump and the ring shear and seepage-coupled apparatus as mentioned above.

Abstract: The present invention belongs to the technical field of rock mechanics testing equipment, and discloses a rock hollow cylinder torsional shear apparatus which includes a frame, a lifting device, a bottom seat, a confining pressure barrel, an upper seat, a force transmission shaft, a force transmission shaft holder, a torque application structure and a controller. The present invention provides a torsional shear apparatus capable of avoiding mutual interference between axial force application and torque force application.

Abstract: The present invention belongs to the technical field of rock mechanics testing equipment, and discloses a rock hollow cylinder torsional shear apparatus which includes a frame, a lifting device, a bottom seat, a confining pressure barrel, an upper seat, a force transmission shaft, a force transmission shaft holder, a torque application structure and a controller. The present invention provides a torsional shear apparatus capable of avoiding mutual interference between axial force application and torque force application.