China University of Mining and Technology

Center for Hydrogeology and Environmental Geology Survey, Cgs

Zhehan Yu

Liu Yang

Lei Zhang

Manchao He

Jianhua Qin

Fei Gong

Jiawei Cai

Fawang Zhang

Benchao Xu

Guangtao Dong

Yingwei Wang

Chengyu Miu

Long Tan

Shulin Zhang

The provided is an experimental apparatus and method for shale supercritical synergistic penetration and imbibition based on damping vibration, including a reaction autoclave; a damping vibration measurement device, used for measuring the weight of a rock sample; a temperature control device, used for heating and cooling the internal environment of the reaction autoclave; a pressure control device, disposed on the reaction autoclave lid; a water level control device, disposed on the upper inner wall of the reaction autoclave body; a conductivity testing device, disposed on the inner bottom of the reaction autoclave body; and a data processing device, disposed on the reaction autoclave body, used for receiving and processing signals transmitted from the damping vibration measurement device, temperature control device, pressure control device, water level control device, and conductivity testing device.

Experimental apparatus and method for shale supercritical synergistic penetration and imbibition based on damping vibration

A method and apparatus for classifying water-rich weak surrounding rock based on in-situ scribing are provided. The method includes placing a scribing device on tunnel cross-sections of varying lengths; performing in-situ scribing on the tunnel cross-sections to obtain the mechanical parameters of the surrounding rock and determining the surrounding rock strength at different locations; while performing in-situ scribing, employing near-infrared spectroscopy to simultaneously measure the in-situ spectrum of the tunnel surrounding rock, thereby determining the surface water content at different locations; based on the scribing mechanical parameters of the tunnel surrounding rock, establishing a scribing depth curve, and calculating a joint development degree of the tunnel surrounding rock at different locations from the scribing depth curve; and based on the surrounding rock strength, surface water content, and joint development degree of the tunnel surrounding rock at different locations, classifying the surrounding rock grades of the tunnel cross-section.

Method and apparatus for classifying water-rich weak surrounding rock based on in-situ scribing

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Beijing, China

Zhehan Yu