Results 131 to 140 of about 135,213 (339)

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source

Study on scientific productivity determination and scientific productivity improvement of rock burst mine

Meitan kexue jishu
China's coal resources with a buried depth of more than 1000 m account for more than 50% of the total reserves, which will be the main part of coal resources supply in the future.
Feng CUI, Zhong LUO, Xingping LAI, Jianqiang CHEN, Baoshan PENG, Lei ZOU, Xudong LIU   +6 more
doaj   +1 more source

Unified Mechanism of Rock Burst Induced by Coal Mine Earthquake and Its Activity and Response Characteristics [PDF]

, 2023
Lyu Pengfei, Yijian Geng
openalex   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source

Prediction of microseismic events in rock burst mines based on MEA-BP neural network. [PDF]

Sci Rep, 2023
Lan T, Guo X, Zhang Z, Liu M.
europepmc   +1 more source

Why Tau First?

, 2007
Electron neutrino has been the first neutral lepton to be foreseen and discovered last century. The un-ordered muon and its neutrino arose later by cosmic rays.
D'Armiento, D., De Sanctis, P. G. Lucentini, Fargion, D.   +2 more
core  

Optimization of cut‐hole layout under high in situ stress based on numerical simulation and field tests

Deep Underground Science and Engineering, EarlyView.
This study investigates the blast‐induced rock damage patterns under different cut‐hole layouts and ground stress conditions through numerical simulations and field tests. The findings in this study provide valuable insights for similar underground engineering applications.
Junjie Zhao, Diyuan Li, P. G. Ranjith, Xinxin Lü, Yanliang Li, Xiaoli Su   +5 more
wiley   +1 more source

Rockburst prediction based on data preprocessing and hyperband‐RNN‐DNN

Deep Underground Science and Engineering, EarlyView.
A data preprocessing workflow is proposed to address challenges in rockburst data analysis. Coupled algorithms preprocess the data set, and hyperband optimization is used to enhance RNN performance. Results show that preprocessing improves accuracy, while dense layers enhance model stability and prediction performance.
Yong Fan, Chenxi Yin, Guangdong Yang, Shengyong Ding, Bin Tian   +4 more
wiley   +1 more source

The Revealed Mechanism of Rock Burst Based on an Innovative Calculation Method of Rock Mass Released Energy. [PDF]

Int J Environ Res Public Health, 2022
Zhang W, Feng J, Ma J, Shi J.
europepmc   +1 more source

Analysis of Rock Burst Induced by Overlying Magmatic Rock [PDF]

Proceedings of the 2016 5th International Conference on Sustainable Energy and Environment Engineering (ICSEEE 2016), 2016
Yue Yu, Zhenxing Chang
openaire   +1 more source