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1621
Fine Detection and Analysis of Hidden Karst in Wellsite with Quasi-Three-Dimensional TDEM Based on Lateral Constraint
Published 2023-01-01“…The TDEM was used to carry out the exploration of hidden karst geological bodies in well QM2, and the quasi-three-dimensional inversion based on lateral constrain was used to invert the TDEM data. …”
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1622
Megacities and the Environment
Published 2002-01-01“…The effects of megacity resource consumption on geologic, hydrologic, atmospheric, and ecological processes are explored at local, regional, and global scales. …”
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1623
Investigation of the Law of Natural Gas Phase Behavior during the Migration and Reservoir Formation
Published 2022-01-01“…However, the existing methane solubility models are not suitable for the higher temperature and pressure range required under current geological conditions. Through a self-designed experimental equipment with high precision, the solubility of CH4 in deionized water can be measured in a wide range of temperatures (313.15-473.15 K) and pressures (5-200 MPa), and a reliable pressure-temperature-solubility segmented model is obtained by fitting. …”
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1624
Study on Mechanical Response and Stability Algorithm of Soft and Hard Rock Interbedded Slope Excavation
Published 2022-01-01“…Based on the actual engineering geological survey, the mechanical response mechanism and sliding surface characteristics of the interbedded slope containing six layers of soft and hard rock during excavation under heavy rain conditions are studied by numerical simulation, and the composite sliding surface stability algorithm of the layered slope is established by using the penalty function. …”
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1625
Prediction of the Collapse Region Induced by a Concealed Karst Cave above a Deep Highway Tunnel
Published 2020-01-01“…The proposed method is applied in a highway tunnel excavated in a karst terrain as a case study. Based on geological survey report parameters, the shape of the collapse surface and the minimum safe distance between the karst cave and tunnel are obtained. …”
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1626
Numerical Simulation of Mining-Induced Damage in Adjacent Tunnels Based on FLAC3D
Published 2021-01-01“…The simulations further show that uneven horizontal displacement and subsidence were the major factors in inducing tunnel construction defects. Poor geological conditions, water, and vehicle dynamic loads were also important factors that induced damage. …”
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1627
Performance of Diaphragm Walls during Ultra-Deep Excavations in Karst Areas: Field Monitoring Analysis
Published 2024-01-01“…However, due to the complex geological conditions in karst areas, construction accidents frequently occur during the excavation of foundation pits. …”
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1628
Few Samples of SAR Automatic Target Recognition Based on Enhanced-Shape CNN
Published 2021-01-01“…Synthetic Aperture Radar (SAR), as one of the important and significant methods for obtaining target characteristics in the field of remote sensing, has been applied to many fields including intelligence search, topographic surveying, mapping, and geological survey. In SAR field, the SAR automatic target recognition (SAR ATR) is a significant issue. …”
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1629
Site Assessment for Astroparticle Detector Location in Evaporites of the Polkowice-Sieroszowice Copper Ore Mine, Poland
Published 2013-01-01“…The numerical analyses, based on geological, geophysical, and geomechanical research, were carried out to determine the behavior of the system of the chamber and surrounding rock mass. …”
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1630
Evolution Mechanism of Thickly Sticky Loose Layered Arch Structure and Prediction Method of Initial Ground Fissure Caused by Underground Coal Mining
Published 2022-01-01“…In view of the problem of taking the loose layer as the uniform cloth load while ignoring thickly sticky loose layered arch (TSLLA) of the traditional mining rock overburden structure analysis, combined with the geological conditions of shallow buried thickly sticky loose layer in Shendong mining area, the mechanical model of the mining TSLLA bearing structure is established, the variation law of arch height under different loose layers is analyzed, and the formation conditions of TSLLA are given. …”
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1631
Numerical Modeling for Engineering Analysis and Designing of Optimum Support Systems for Headrace Tunnel
Published 2018-01-01“…In the present research work, the rock mass rating (RMR) and tunneling quality index (Q-system) were used as empirical methods for characterization of rock mass based on real-time geological and site geotechnical data and physical and strength properties of rock samples collected from the alignment of tunnel. …”
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1632
Failure modes and interaction mechanisms of tunnel under active landslide conditions
Published 2025-01-01“…In this study, using methods such as engineering geological investigation, slope deformation monitoring, deep displacement monitoring, and numerical simulation, the interaction between landslides and tunnels was investigated from the perspective of landslide deformation and failure characteristics. …”
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1633
A Study of Safety Coefficient Determination and Support Parameter Optimization Based on Vulnerability Preevaluation
Published 2021-01-01“…In this study, taking the surrounding rocks, stress, geological environment, and service time into consideration, the safety coefficient is determined based on the vulnerability scores calculated by the vulnerability preevaluation model of the surrounding rock. …”
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1634
Sensitivity Analysis on the Impact of Input Parameters on Seismic Hazard Results: A Case Study of Central America
Published 2024-12-01“…This study focuses on Central America, utilizing recent data from seismic, geological, and geophysical studies to improve uncertainty analyses through classic statistical methods. …”
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1635
New Bouguer Gravity Maps of Venezuela: Representation and Analysis of Free-Air and Bouguer Anomalies with Emphasis on Spectral Analyses and Elastic Thickness
Published 2012-01-01“…Results were compared with the previous geological and tectonic information obtained from former studies. …”
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1636
Structural Analysis of Lunar Regolith from LPR CH-2 Data Based on Adaptive f-x E MD: LPR Data Processed by Adaptive f-x EMD
Published 2019-01-01“…The acquired LPR data is significant for the research of lunar geological structure. Based on the sedimentary mechanism of lunar regolith, the regolith contains many rocks with different sizes. …”
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1637
Response Characteristics of Tunnels with Curvilinear Axes under Obliquely Incident Lateral SV Seismic Waves
Published 2024-01-01“…Influenced by topography, geological conditions, and environmental factors, the alignment design of long-distance tunnels frequently incorporates curved tunnel segments. …”
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1638
Application of Magnetometer-Equipped Drone for Mineral Exploration in Mining Operations
Published 2024-12-01“…This study investigates the geological composition and material distribution within the Lavrion repository located in Greece through an aerial magnetometry survey using a novel aerial drone, CERBERUS, coupled with advanced data processing techniques. …”
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1639
Firefly Optimization Algorithm for the Prediction of Uplift due to High-Pressure Jet Grouting
Published 2020-01-01“…A project that needs to be uplifted by high-pressure jet grouting (HPJG) is exposed to particular geological and engineering circumstances; meanwhile, HPJG has intense subjectivity, short of the theoretical base, to ascertain the influence angle β and enlarged radius Δa, which are the main parameters that affect the uplift effect. …”
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1640