China University of Mining and Technology

Beijing University of Civil Engineering and Architecture

Dongqiao Liu

Manchao He

Yu Zhang

Jie Hu

Zhigang Tao

Jitao Li

Zhaoyong Lv

Yilin Su

Xuena Jia

Kailong Gao

Mingkui Zhang

Kaifeng Liu

Maozu Guo

A rock burst active prevention and control mechanism, which includes: a NPR reinforcing mesh, rod bodies, NPR steel panels, an embedding reinforcement and a NPR steel fibre concrete, the NPR reinforcing mesh is formed by horizontal and vertical interlacing of NPR steel bars, and is provided against a surrounding rock of a tunnel, extending ends of the rod bodies are penetrated out of a hole of the NPR reinforcing mesh, the NPR steel panels are provided with multiple through-holes, the rod bodies, which are located on a same radial plane in the tunnel, are connected to one of corresponding NPR steel panels, the embedding reinforcement is connected between the extending ends of two adjacent rod bodies, the NPR steel fibre concrete is overlaid on the extending ends of the rod bodies and the embedding reinforcement.

Rock burst active prevention and control mechanism

A K-nearest neighbour rock burst prediction method and device based on big data visualization analysis are provided. The method includes the following steps: S, obtaining spectrum characteristics and amplitude/energy characteristics of rocks according to rock data; and S, accurately predicting rock burst by a K-nearest neighbour algorithm according to the spectrum characteristics and the amplitude/energy characteristics. By adopting the technical scheme, the rock burst can be accurately predicted to avoid huge economic and casualties.

K-nearest neighbour rock burst prediction method and device based on big data visualization analysis

A simulated impact-type rock burst experiment apparatus includes a bracket, a specimen box assembly, an X-direction, Y-direction and Z-direction loading mechanisms mounted on the bracket, and control systems. Each loading mechanism includes four supporting posts in a rectangular arrangement, a first and second frames aligned with each other and fixedly connected to both ends of the four supporting posts, a loading hydraulic cylinder and a lead screw mounted on the two frames respectively.

Simulated impact-type rock burst experiment apparatus

Growing community of inventors

Beijing, China

Dongqiao Liu