873 Result(s)
within
Zhi-**ong **ao
Earth Sciences
English
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Article
Training data selection using information entropy: Application to heating load modeling of rural residence in northern China
The selection of input variables and their amount has been an important issue in big data load forecasting. Taking heating load forecasting as an example, this paper proposed a method for data filtering based ...
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Article
Contact algorithm of the material point method and comparison with the finite element method
Being a fully Lagrangian particle method, the material point method (MPM) discretizes a material domain by using a collection of material points. The momentum equations in MPM are solved on a predefined regula...
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Article
Rockburst Intensity Grade Prediction Based on Data Preprocessing Techniques and Multi-model Ensemble Learning Algorithms
Rockburst is a mine dynamic disaster caused by the rapid release of elastic strain energy of surrounding rock. As the depth of engineering project operations increases, accurate classification of rockburst int...
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Article
Experimental Investigation of Progressive Failure Characteristics and Permeability Evolution of Limestone: Implications for Water Inrush
Water inrush represents a significant hazard in karst tunnels, and the water-resistant rock mass plays a pivotal role in water inrush incidents. It is of great significance to explore the coupled hydro-mechani...
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Article
Open AccessNumerical modeling on wave–current flows and bed shear stresses over an algal reef
Currents in coastal zones under multiple mechanisms in terms of tides, waves, wind, and high roughness are difficult to model; bed shear stresses under wave–current flows are particularly challenging yet not b...
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Article
Application of unmanned aerial vehicle tilt photography technology in geological hazard investigation in China
A major threat is posed to both human society and the environment by geological hazards, necessitating the need for accurate and comprehensive investigation and application in this field. Traditional geologica...
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Article
A microseismic source location method considering diffraction used in tunnel engineering
In order to improve the accuracy of rockburst warning, it is necessary to accurately interpret the microseismic (MS) information obtained during the rockburst development process. However, the MS source locati...
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Article
Field Study on Bearing Capacity of Large-Diameter Rock-Socketed Bored Piles with Combined Grouting in Highly Weathered Rock Layers
This paper aims to investigate the effect of combined end-and-side grouting on the bearing properties of large-diameter rock-socketed bored piles in highly weathered rock layers. Eight full-scale pile load tes...
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Article
Numerical and Field Investigations of Dynamic Failure Caused by Mining-Induced Tremor Based on Focal Mechanism
The rupture mechanism of a seismic source governs the spatiotemporal distribution and intensity characteristics of the radiated stress-wave field and significantly affects the dynamic disasters of roadways tri...
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Article
Evaluating the fracture resistance and drainage difficulty of coal reservoirs using log data
Evaluating the fracture resistance and drainage difficulty of a coal reservoir is essential in the coalbed methane (CBM) industry. In this study, the coal body structure and brittleness indices, as well as the...
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Article
Exploration of anomaly separation technology of wide-field electromagnetic method
To improve the accuracy of data processing and interpretation, effective suppression of the regional background field and extraction of the local anomaly field for further analyses represent urgent issues that...
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Article
Seismic Signal Analysis Based on Adaptive Variational Mode Decomposition for High-speed Rail Seismic Waves
High-speed rails with determined length and load run for long periods at almost uniform speeds along fixed routes, constituting a new stable and repeatable artificial seismic source. Studies have demonstrated ...
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Article
Dynamic energy evolution and fragmentation characteristics of damaged rock under impact compression loading
In sharp contrast to prefabricated cracks, the damage to rock masses resulting from external disturbances such as excavation disturbances and tectonic movement varies substantially as to the incidence, density...
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Article
Multiphase evolution of a Li-pegmatite field from the Tashisayi area, Altyn Tagh, NW China: insights from a petrological, geochemical, and geochronological study
The Tashisayi Li deposit was newly discovered in the eastern part of the Tashisayi batholith, located in the Altyn Tagh region of Northwest China. A Li-rich composite pegmatite-aplite dyke (γ02) displays super...
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Article
Bio-mediated geotechnology and its application in geoengineering: mechanism, approach, and performance
Bio-mediated geotechnology refers to the technology that utilizes various types of microbial processes to improve the hydro-mechanical behavior of soil and rock, aiming for the prevention and mitigation of geo...
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Article
A new model for describing black holes based on the essential relationship between electric field and gravitational field analysis
Einstein aimed to find a unified theoretical model to explain various interactions in nature, and the relationship between gravitational and electric fields was particularly important. For the first time, this...
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Article
Geochronology and Geochemistry of Mesozoic Granites in the North Qilian Shan: Implications for Petrogenesis and Tectonic Setting
This paper documents the zircon U–Pb ages, whole-rock geochemistry, and Sr–Nd–Pb isotopes of the Mesozoic granites in the central part of the North Qilian Orogenic Belt to provide information on the tectonic e...
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Article
Model test study on natural frequency evolution and early warning of reservoir landslides under water level fluctuations
Reservoir water fluctuation is the key factor affecting the stability of reservoir landslides. Existing research on the evolution of landslides under cyclic reservoir water fluctuations is limited. However, fu...
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Article
Groundwater Resource Assessment by Applying Long-Term Trend Analysis of Spring Discharge, Water Level, and Hydroclimatic Parameters
Groundwater accounting is becoming increasingly important for sustainable societal development. To gain insights into the long-term spatiotemporal changes from 1992 to 2015 regarding groundwater resources in K...
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Article
Zircon U–Pb geochronologic, geochemical and Sr–Nd–Pb isotope characteristics of the Beidaban granites in the North Qilian Orogenic Belt: Petrogenesis and tectonic implications
The tectonic evolution and crustal accretion process of the North Qilian Orogenic Belt (NQOB) are still under debate because of a lack of integrated constraints, especially the identification of the tectonic t...
