Results 11 to 20 of about 8,180 (295)

Controlling Mechanism of Rock Burst by CO2 Fracturing Blasting Based on Rock Burst System

open access: yesShock and Vibration, 2020
Rock burst induced by mining is one of the most serious dynamic disasters in the process of coal mining. The mechanism of a rock burst is similar to that of a natural earthquake.
Tianwei Lan   +4 more
doaj   +3 more sources

Prediction of Grade Classification of Rock Burst Based on PCA-SSA-PNN Architecture

open access: yesGeofluids, 2023
The uncertainty and complexity of rock burst brings great difficulties to the prediction of rock burst grades. In order to estimate the risk grades of rock burst, an integrated method combining principal component analysis (PCA) and sparrow search ...
Zhenyi Wang, Yalei Wang, Xiaoliang Jin
doaj   +2 more sources

The Rock Burst Hazard Evaluation Using Statistical Learning Approaches

open access: yesShock and Vibration, 2021
The great threat and destructiveness brought by a rock burst make its prediction and prevention crucial in engineering. The rock burst hazard evaluation at project locations is an effective way of preventing rock burst since currently real-time ...
Jie Chen   +9 more
doaj   +2 more sources

Experimental and Numerical Analysis of Rock Burst Tendency and Crack Development Characteristics of Tianhu Granite

open access: yesGeofluids, 2021
Rock burst is a serious nonlinear dynamic geological hazard in underground engineering construction. In this paper, a true triaxial unloading rock burst experiment and numerical simulation are carried out on Tianhu granite to investigate the rock burst ...
Jinzhu Hu   +5 more
doaj   +2 more sources

Rock Burst and Actually Effective Bolting for Rock Burst Prevention

open access: yesГорные науки и технологии, 2019
Rock burst represents a very dangerous phenomenon in deep underground mining, as well as for underground structures in unfavourable conditions (great depth, high horizontal stress, proximity of major tectonic structures, etc.).
Ngoc Minh Nguyen, Duc Thang Pham
doaj   +3 more sources

Study on Monitoring Rock Burst through Drill Pipe Torque [PDF]

open access: yesShock and Vibration, 2015
This paper presents a new method to identify the danger of rock burst from the response of drill pipe torque during drilling process to overcome many defects of the conventional volume of drilled coal rubble method.
Zhonghua Li   +3 more
doaj   +2 more sources

Case Study of the Characteristics and Mechanism of Rock Burst near Fault in Yima Coalfield, China

open access: yesShock and Vibration, 2021
Deep mining near faults may easily cause rock bursts, which seriously threaten mining safety. Based on the engineering background of deep mining near fault in Yima coalfield, by collecting the rock burst events that happened near fault during deep mining,
Zhenhua Jiao   +3 more
doaj   +2 more sources

Experimental investigation into rock burst proneness of rock materials considering strain rate and size effect [PDF]

open access: yesFrontiers in Earth Science, 2023
In deep rock engineering, evaluating the likelihood of rock burst is imperative to ensure safety. This study proposes a new metric, the post-peak dissipated energy index, which accounts for strain rate and size effects in assessment of the rock burst ...
Xiaobin Li   +6 more
doaj   +2 more sources

Rock Burst Intensity Classification Prediction Model Based on a Bayesian Hyperparameter Optimization Support Vector Machine

open access: yesMathematics, 2022
Rock burst disasters occurring in underground high-stress rock mass mining and excavation engineering seriously threaten the safety of workers and hinders the progress of engineering construction.
Shaohong Yan   +3 more
doaj   +2 more sources

Blasting pressure relief technology for preventing rock burst in deep heading roadway

open access: yesGong-kuang zidonghua, 2022
In order to solve the problems of low pressure relief intensity, untimely pressure relief and high labor intensity in the prevention and control of rock burst by using large diameter borehole pressure relief in deep heading roadway, taking the 401103 ...
MA Wentao   +4 more
doaj   +2 more sources

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