Chongqing University

North China Institute of Science and Technology

Hancheng Zaozhuang Industrial Co., Ltd.

Quanle Zou

Liang Chen

Zhiheng Cheng

Jun Zhang

Ying Liu

Jiakai Sun

Hongbing Wang

Zhimin Wang

Zihan Chen

Bichuan Zhang

Xiaoyan Sun

Xiaofeng Xia

Dahe Yan

Ruizhi Wang

Tengfei Ma

Yun Lu

Ning Li

Fanjie Kong

Zhenli Zhang

Jinyan Liang

Han Liu

Meichen Li

Peimiao Sang

Biao Liu

Qican Ran

Haobin Gao

Wei Pi

Coal rock three-dimensional strain field visual system and method are provided under mining influence. The system includes a stress condition simulation system and a strain monitoring system. The stress condition simulation system includes a similar simulation experiment rack, a loading system and a circular slideway. The method includes preparing a 3D printing wire, printing a strain visual similar model, simulating a stratum dip angle and a gas-containing condition, applying stress fields, recording a cracking and dyeing condition of microcapsules inside the model, and the like. The system can realize tracing the generation and development of internal cracks in simulation models with complex geological conditions, and tracing the three-dimensional movement of internal ink dots to draw four-dimensional images of displacement fields.

Coal rock three-dimensional strain field visual system and method under mining influence

A method for quickly optimizing key mining parameters of an outburst coal seam as provided includes steps of constructing a graphic basic information model of the coal mine, giving coal mine characteristic information, performing mining simulation, constructing a CNN-LSTM predicating model, obtaining changes under different mining conditions, constructing a Lorenz chaotic primer, and the like. The model can be improved with continuous breakthroughs in theory, so that the model has a strong learning ability and can adapt to the constantly changing complex geological environment. The method has very good predictability for the determination of coal seam group parameters, and can efficiently select and output a set of candidate parameters.

Method for quickly optimizing key mining parameters of outburst coal seam

A hole protection system and a method for coal seam slotting and fracturing combined drainage. The system includes a hydraulic slotting subsystem, a hydraulic fracturing subsystem and a flexible hole protection system. The hydraulic slotting subsystem includes an ultra-high pressure water jet generating module, a drill pipe drilling tool module, an orifice sealer, a gas slag separator and a drilling rig. The hydraulic fracturing system includes an emulsion pump station, a water tank, a hole sealing device, a fracturing string and a casing. The flexible hole protection system includes a front end fixing device, a water injection support pipe, a first flexible support and a water injection connecting section.

Hole protection system and method for coal seam slotting and fracturing combined drainage

Coal rock three-dimensional strain field visual system and method are provided under a complex geological structure. The system includes a stress condition simulation system and a strain monitoring system. The stress condition simulation system includes a similar simulation experiment rack, a loading system and a circular slideway. The method includes preparing a 3D printing wire, printing a strain visual similar model, simulating a stratum dip angle and a gas-containing condition, applying stress fields, recording a cracking and dyeing condition of microcapsules inside the model, and the like. The system can realize tracing the generation and development of internal cracks in simulation models with complex geological conditions, and tracing the three-dimensional movement of internal ink dots to draw four-dimensional images of displacement fields.

Coal rock three-dimensional strain field visual system and method under complex geological structure

Growing community of inventors

Zhenping County, China

Quanle Zou