Results 11 to 20 of about 118,213,683 (284)

Inversion Analysis of the In Situ Stress Field around Underground Caverns Based on Particle Swarm Optimization Optimized Back Propagation Neural Network

open access: yesApplied Sciences, 2023
The in situ stress distribution is one of the driving factors for the design and construction of underground engineering. Numerical analysis methods based on artificial neural networks are the most common and effective methods for in situ stress ...
Hong-Chuan Yan   +7 more
doaj   +5 more sources

Intelligent Inversion of Deep In Situ Stress Fields Based on the ABC-SVR Algorithm

open access: yesMathematics
Accurate inversion of the deep initial in situ stress field is a fundamental prerequisite for stability analysis of surrounding rock in underground engineering, roadway support design, and prevention and control of dynamic disasters.
Weipeng Gong   +5 more
doaj   +4 more sources

Local Stress Field Correction Method Based on a Genetic Algorithm and a BP Neural Network for In Situ Stress Field Inversion

open access: yesAdvances in Civil Engineering, 2021
The in situ stress field is the fundamental factor causing deformation and damage in geotechnical engineering, so it is the main basis for underground engineering design and excavation.
Tianzhi Yao   +4 more
doaj   +3 more sources

In situ stress determination from inversion of hydraulic fracturing data

open access: yesInternational Journal of Rock Mechanics and Minings Sciences, 2011
Abstract The paper presents a new method, based on rigorous principles of mechanics, for determining the in-situ rock stress state based on hydraulic fracturing data. A solution can be obtained from a single data set which includes breakdown pressure, fracture angular position and trace angle.
Jinsong Huang, D V Griffiths
exaly   +4 more sources

Robust in-situ stress inversion in an underground powerhouse using tensor synthesis and surrogate-assisted differential evolution [PDF]

open access: yesScientific Reports
Accurate characterization of the initial in-situ stress field is essential for stability assessment, support design, and surrounding rock control in deep underground engineering, yet field measurements are often highly scattered and three-dimensional ...
Zhihong Dong   +5 more
doaj   +3 more sources

Inversion of In-situ stress field in near-fault coal mining area by coupling numerical simulation with deep learning

open access: yesGeomatics, Natural Hazards & Risk
Understanding the in-situ stress distribution is crucial for coal mine production. In mining area 105 of Yuandian No. 1 Coal Mine, in-situ stress measurements were carried out using the stress relief method.
Rongqin Deng   +6 more
doaj   +4 more sources

In-situ stress field inversion and its impact on mining-induced seismicity

open access: yesGeomatics, Natural Hazards & Risk, 2023
The magnitude and direction of the in-situ stress field significantly influence the Geodynamic disaster. Taking the Gaojiapu Coal Mine in the northwest Binchang mining area as the study area, the distribution law of the in-situ stress field and its ...
Xianggang Cheng   +8 more
doaj   +4 more sources

In Situ Stress Measurement and Field Inversion in Deep Surrounding Rock

open access: yesMathematics
The in situ stress state of deep surrounding rock is critically important for mine safety and resource extraction. This study focuses on a lead–zinc mine in Yunnan Province, China, with the objective of characterizing the distribution of the deep in situ
Zhilou Feng   +6 more
doaj   +3 more sources

GAN inversion method of an initial in situ stress field based on the lateral stress coefficient [PDF]

open access: yesScientific Reports, 2021
The initial in situ stress field influences underground engineering design and construction. Since the limited measured data, it is necessary to obtain an optimized stress field.
Li Qian   +7 more
doaj   +3 more sources

An optimized modeling for in-situ stresses based on Rhino accurate modeling and large-scale transverse isotropic theory

open access: yesScientific Reports, 2023
In-situ stresses are significantly important for underground mining geotechnical design and coal seam gas management in underground coal mines. Aiming at regions with geological structures, this paper proposes an in-situ stress inversion method combining
Weihua Song   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy