Results 21 to 30 of about 1,293 (185)

Stability Evaluation on Surrounding Rocks of Underground Powerhouse Based on Microseismic Monitoring

Shock and Vibration, 2015
To study the stability of underground powerhouse at Houziyan hydropower station during excavation, a microseismic monitoring system is adopted. Based on the space-time distribution characteristics of microseismic events during excavation of the main ...
Feng Dai, Biao Li, Nuwen Xu, Yongguo Zhu, Peiwei Xiao   +4 more
doaj   +1 more source

Quantitative Evaluation of the “Non-Enclosed” Microseismic Array: A Case Study in a Deeply Buried Twin-Tube Tunnel

Energies, 2019
The high-stress hazards of underground engineering have stimulated the exploration of microseismic monitoring and early warning methods. To achieve a good monitoring effect, the monitoring object is usually enclosed by a microseismic array (sensor array)
Hang Zhang, Chunchi Ma, Tianbin Li
doaj   +1 more source

Microseismic Monitoring, Positioning Principle, and Sensor Layout Strategy of Rock Mass Engineering

Geofluids, 2020
Microseismic monitoring technology can start from the most initial stage of rock deformation and track and monitor the progressive failure process of rock mass from the fracture of rock blocks to the instability of rock mass.
Tianhui Ma, Daoyuan Lin, Chun’an Tang, Kedar Prasad Yadav, Zhiqiang Feng, Ke Ma   +5 more
doaj   +1 more source

Uncertainty in surface microseismic monitoring [PDF]

ASEG Extended Abstracts, 2013
Uncertainty in a migration based approach to surface and near surface microseismic monitoring occurs in two ways: uncertainty in the validity of detected events and uncertainty in the estimated position of the event. Synthetic modeling and comparison to case studies show that sign-to-noise-ratio is a key indicator of both types of the uncertainties. In
Michael Thornton, Leo Eisner, Mike Mueller   +2 more
openaire   +1 more source

Automatic Events Recognition in Low SNR Microseismic Signals of Coal Mine Based on Wavelet Scattering Transform and SVM

Energies, 2022
The technology of microseismic monitoring, the first step of which is event recognition, provides an effective method for giving early warning of dynamic disasters in coal mines, especially mining water hazards, while signals with a low signal-to-noise ...
Xin Fan, Jianyuan Cheng, Yunhong Wang, Sheng Li, Bin Yan, Qingqing Zhang   +5 more
doaj   +1 more source

Real time identification of microseismic events based on ridge regression improved normative variable analysis

Gong-kuang zidonghua
The identification of microseismic events is the foundation of microseismic monitoring in coal mines. Most existing microseismic monitoring technologies are developed based on the variation law of single physical quantities, which can easily lead to ...
CHENG Jian, SHI Linsong, LUO Yi, ZHOU Tianbai, YANG Lingkai   +4 more
doaj   +1 more source

Genetic Programming-Based Prediction Model for Microseismic Data

Geofluids, 2022
Microseismic monitoring is a rock breakdown monitoring technology, and it has become a major technical tool for underground disaster warning and prevention.
Man Wang, Hongwei Zhou, Dongming Zhang, Yingwei Wang, Weihang Du, Beichen Yu   +5 more
doaj   +1 more source

Application of CT inversion monitoring and early warning technology in microseismic anomaly area

Gong-kuang zidonghua, 2021
In order to solve the problems that microseismic monitoring can only reflect the danger of the area where the microseisms are located, and CT inversion monitoring cannot reflect the current danger level of the working face in time, taking the 3105 ...
LI Yunsheng1, XU Desheng1, MA Zhifeng2, ZHOU Haijun1, GUO Wenhao3   +4 more
doaj   +1 more source

Machine Learning Based Identification of Microseismic Signals Using Characteristic Parameters

Sensors, 2021
Microseismic monitoring system is one of the effective means to monitor ground stress in deep mines. The accuracy and speed of microseismic signal identification directly affect the stability analysis in rock engineering.
Kang Peng, Zheng Tang, Longjun Dong, Daoyuan Sun   +3 more
doaj   +1 more source

Microseismic Data-Direct Velocity Modeling Method Based on a Modified Attention U-Net Architecture

Applied Sciences, 2023
In microseismic monitoring, the reconstruction of a reliable velocity model is essential for precise seismic source localization and subsurface imaging.
Yixiu Zhou, Liguo Han, Pan Zhang, Jingwen Zeng, Xujia Shang, Wensha Huang   +5 more
doaj   +1 more source