Results 31 to 40 of about 1,572 (209)

Experimental study on the failure characteristic and mechanism of granite time-delayed rockburst under true triaxial condition [PDF]

open access: yes, 2023
A series of tests for time-delayed rockburst of granite under true triaxial condition was designed and carried out. By using the true triaxial rockburst test system, an acoustic emission (AE) system, a high-speed camera system, and a digital image motion
Feng G. -L.   +5 more
core   +1 more source

Characteristics of rockburst and early warning of microseismic monitoring at qinling water tunnel

open access: yesGeomatics, Natural Hazards & Risk, 2022
In-depth records of the geological and rockburst data during the construction of the Qinling Water Tunnel of the Han to the Wei River project, analysis of the initial stress field distribution rules of the rock mass within a buried depth of 700 m ...
Tianhui Ma   +6 more
doaj   +1 more source

Prediction of rockburst classification using Random Forest

open access: yesTransactions of Nonferrous Metals Society of China, 2013
Abstract The method of Random Forest (RF) was used to classify whether rockburst will happen and the intensity of rockburst in the underground rock projects. Some main control factors of rockburst, such as the values of in-situ stresses, uniaxial compressive strength and tensile strength of rock, and the elastic energy index of rock, were selected in
Long-jun DONG, Xi-bing LI, Kang PENG
openaire   +1 more source

Rockburst prediction based on optimization of unascertained measure theory with normal cloud

open access: yesComplex & Intelligent Systems, 2023
Rockburst is one of the common geological disasters in deep underground areas with high stress. Rockburst prediction is an important measure to know in advance the risk of rockburst hazards to take a scientific approach to the response.
Xingmiao Hu   +4 more
doaj   +1 more source

Research on rockburst proneness evaluation method of deep underground engineering based on multi-parameter criterion

open access: yesElectronic Journal of Structural Engineering, 2023
The study of rockburst criterion is the key to predict the occurrence of rockburst. Based on the energy principle, a new multi-parameter rockburst criterion (RPC) were established.
Feiyue Sun   +4 more
doaj   +1 more source

Some questions of underground and surface structures seismic safety while sudden dynamic manifestations [PDF]

open access: yes, 2014
В роботі запропонована методика знаходження уточнених критичних параметрів масової швидкості (прискорення) з урахуванням поправки до нормативних показників впливу частотно-часової характеристики системи «грунт-споруда» та методики оцінки сейсмонебезпеки ...
Вовк, Оксана Алексеевна   +2 more
core   +1 more source

Machine learning methods for rockburst prediction-state-of-the-art review

open access: yesInternational Journal of Mining Science and Technology, 2019
One of the most serious mining disasters in underground mines is rockburst phenomena. They can lead to injuries and even fatalities as well as damage to underground openings and mining equipment.
Yuanyuan Pu   +3 more
doaj   +1 more source

Long-term degradation, damage and fracture in deep rock tunnels: A review on the effect of excavation methods [PDF]

open access: yes, 2021
Rocks are frequently host materials for underground structures, particularly for deep Tunnels. Their behavior plays a fundamental role in the overall stability of these structures.
Frenelus, Wadslin   +2 more
core   +2 more sources

Novel Ensemble Tree Solution for Rockburst Prediction Using Deep Forest

open access: yesMathematics, 2022
The occurrence of rockburst can cause significant disasters in underground rock engineering. It is crucial to predict and prevent rockburst in deep tunnels and mines. In this paper, the deficiencies of ensemble learning algorithms in rockburst prediction
Diyuan Li   +4 more
doaj   +1 more source

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