Chang'an University

Institute of Geographic Sciences and Natural Resources Research, Cas

Hengxing Lan

Mervyn Lan

Weifeng Sun

Bei Zhang

Changgen Yan

Zhonghong Dong

Ning Zhang

Han Bao

Bolong Li

Hongbing Zhang

Xin Liu

Shixuan Ren

Langping Li

Yuming Wu

Qinyuan Liang

Haoyi Yang

Jiangbo Xu

Sensen Liu

Zhao Chen

Xiaoming Liu

Shijie Liu

An in-situ detection robot and method for geological information without disturbance of in-situ stress, including a sleeve, a drilling unit set at the top of the sleeve, a dumping unit set inside the sleeve, and a support propulsion unit is set outside the sleeve, the top of the dumping unit extends into the drilling unit, a detection unit is set between the drilling unit and the support propulsion unit, and the robot tail is connected to a control unit; the dumping unit is used to discharge soil drilled from a hole of the drilling unit to the ground, the support propulsion unit is used to realize support, the detection unit is used to detect geological information of surrounding environment of the robot, the control unit is used to control the drilling unit, the support propulsion unit and the detection unit, and the control unit collects and processes the geological information.

In-situ detection robot and detection method for geological information without disturbance of in-situ stress

Disclosed is an in-situ detection robot for loess geological information, including a housing, an active tensioning system, an auxiliary tensioning system, a control system, a drive system, and a detection system. The active tensioning system is configured to provide the robot with a tensioning force in an aperture direction of a loess hole for the robot to travel in the loess hole. The auxiliary tensioning system is configured to provide the robot with a pre-tensioning force for the robot to travel in the loess hole. The control system is configured to control a movement mode of the robot according to different travelling environments of the robot in the loess hole. The driving system is configured to provide the robot with a travelling power in the loess hole. The detection system is configured to detect related parameters of the loess geological information. The robot according to the present disclosure has a simple structure, can adapt to an aperture change of 100-150 mm, can effectively solve the problem in which the crawler pipe robot has a large radial size, has strong obstacle crossing ability and trafficability performance, and is applicable to the detection of geological information in the loess hole, which fills the existing technical gap.

In-situ detection robot for loess geological information

An in-situ shear test device for holes in rock-soil mass include an axial loading system, a cutting power system, a rotation system, an upper cutterhead control system, a shear test system, and a lower cutterhead control system, which belongs to the field of geotechnical engineering and geological engineering technology. The device can accurately obtain the in-situ shear strength parameters in the hole of rock and soil, improve the engineering design level, and ensure the safety and stability of the project. The device adopts an in-situ shear test device in the hole of rock and soil mass with the above structure, which can solve the problems of difficulty in in-situ shear test for the holes in deep rock-soil mass, lack of test device, difficulty in radial test, difficulty in loading while shearing, and difficulty in multi-point in-situ test.

In-situ shear test device for holes in rock-soil mass

A high-speed remote landslide simulation test device with a variable angle includes a support adjustment component, slide plates, and loose leaves. The device first transmits the operation paths of adjusting the slide plate at different angles to the controller, and the personnel operates the control panel to control the support jack, the motor, and the electromagnet to start and stop through the controller, the output shaft of the motor drives the stainless steel threaded rod to rotate, the controller first energizes one electromagnet and disconnects the other three electromagnets, which can only make the stainless steel threaded rod rotate in a fixed position inside the inner threaded pipe, and the three inner threaded pipes follow the rotation direction of the stainless steel threaded rod, thus, the position of the support jack can be moved separately.

High-speed remote landslide simulation test device with a variable angle

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Xi'an, China

Hengxing Lan