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1741
A Case Study of Cyclic Top Coal Weakening Process Based on Highly Tough Coal Seam with Partings
Published 2021-01-01“…The conventional blast weakening process and water injection weakening process are more widely applied in fully mechanized caving mining of hard thick coal seams, but under some special complex geological conditions, no desirable performance has been achieved in top coal weakening by one weakening process alone after substantial investment in capital and equipment. …”
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1742
Characterization of paleodrainages in desert regions of Saudi Arabia multisatellite images with field based study
Published 2025-02-01“…They are ancient watercourses carried water in the past during the Holocene deluge, and they were affected by global climate change and geological processes turning them into dry and buried channels filled by sediments, and these are described as “Paleodrainages”. …”
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1743
Force-Fracture Characteristics of the Roof above Goaf in a Steep Coal Seam: A Case Study of Xintie Coal Mine
Published 2019-01-01“…After coal is extracted from a working face in a steep coal seam (SCS), the immediate roof tends to cave in and refill the lower part of the goaf. Based on the geological conditions of a work area in a SCS and the characteristics of roof caving, this study proposed a formula for the width of the backfill in the goaf and analyzed the main factors influencing it. …”
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1744
Implementation of Lean Construction and Risk Management for Waste Identification in the Jragung Dam Construction Project Package 2
Published 2025-01-01“…The highest-priority risks were unfinished diversion channels (RPN 108, RSV 36), geological issues found (RPN 105, RSV 35), and design revision (RPN 96, RSV 32). …”
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1745
Shield-Roof Interaction in Longwall Panels: Insights from Field Data and Their Application to Ground Control
Published 2018-01-01“…Our results show that the shield-roof interaction is not only dependent on the shield capacity, but also collectively determined by the time-related factors, the geological condition, the setting pressure, yielding characteristics, and mining method. …”
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1746
Effects of Internal Pressure on Urban Water Supply Pipeline Leakage-Induced Soil Subsidence Mechanisms
Published 2024-01-01“…After the rupture of pressurized water supply pipes in urban underground areas, seepage-induced ground subsidence becomes a severe geological hazard. Understanding the permeation and diffusion patterns of water in soil is crucial for deciphering the mechanisms underlying soil settlement and damage. …”
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1747
PPV Criterion of a Rock Slope Imbedded with a Fault subjected to Blasting P-Waves
Published 2020-01-01“…In fact, intact rock slopes do not exist and slope stability is controlled by the geological defects. In this paper, the stability of a rock slope imbedded with a fault is considered. …”
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1748
Sensitivity Analysis and Numerical Simulation Study on Main Controlling Factors of Surface Movement and Deformation in Strip Filling Mining under Thick Unconsolidated Layers
Published 2021-01-01“…In many mining areas, there is a lot of pressed coal under buildings, railways, and water bodies, and there are geological conditions of thick unconsolidated layers, so the surface subsidence has certain particularity. …”
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1749
Freeze-Thaw Effects on Stability of Open Pit Slope in High-Altitude and Cold Regions
Published 2021-01-01“…To achieve this purpose, a linear relationship between the geological strength index (GSI) and the Tianshan slope rock mass rating (TSMR) system is established considering the effect of the freeze-thaw action by introducing a freeze-thaw correction coefficient δ. …”
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1750
Assessment of the Potential Flood Risk in Sarbaz Drainage Basin
Published 2020-09-01“…For this purpose, the databases including elevation, slope, geological characteristics, soil characteristics, precipitation, vegetation, land use, and vector layers of the main channel, streams and drainage densities of the basin were used. …”
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1751
Numerical Simulation of Nanosilica Sol Grouting for Deep Tunnels Based on the Multifield Coupling Mechanism
Published 2021-01-01“…Grouting is an effective technical way for the construction of deep tunnels in unfavorable geological conditions. The fluid-solid-chemical coupling mechanism of grouting process is analyzed from the following three aspects: influence of physical properties of silica sol on permeability coefficient, dynamic changes of porosity and permeability of geotechnical media with seepage pressure, and governing equations for flow and mass transfer characteristics. …”
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1752
Numerical Simulation Research and Application of Support Design of Broken Rock Mass in Submarine Gold Mine
Published 2023-01-01“…In order to solve the problem that the broken rock mass is easy to collapse and fall during the excavation of a submarine gold mine, two kinds of bolt-mesh-concreting combined support schemes are designed by means of field engineering geological investigation, indoor rock mechanics test, rock mass quality classification, and theoretical analysis. …”
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1753
Dynamic Shear Strength of Rock Joints and Its Influence on Key Blocks
Published 2019-01-01“…Shear strength deterioration of rock joints and its induced instability of key blocks subjected to dynamic disturbance constitute the mechanism of many geological disasters such as rockburst, landslide, and rockfall. …”
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1754
Discretization of the Water Uptake Process of Na-Montmorillonite Undergoing Atmospheric Stress: XRD Modeling Approach
Published 2018-01-01“…This work focuses on the water-montmorillonite interaction under variable atmospheric conditions in order to characterize the interlamellar space (IS) configuration for possible use in the context of geological barrier for radioactive and industrial waste confinement. …”
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1755
Analysis of the ecological status of urban parks with emphasis on forest parks using GIS (Case study: Tabriz)
Published 2022-06-01“…In the studied parks, according to the results of the geological survey, the Eagle Park is in ecological terms, and the Shams, Baghmehisheh and Eram parks are in the next ranks, and the point is the inappropriate situation of the Eram Park and Baghmehisheh Parks, especially Eram, in comparison with other parks. …”
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1756
Simulation and Analysis of Long-Term CO2 Trapping for the Shenhua CCS Demonstration Project in the Ordos Basin
Published 2017-01-01“…These results are useful for the evaluation of the geochemical process in long-term CO2 geological storage.…”
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1757
Ground Subsidence Evolution from 1000 m Deep Mining: A Case Study in Fengfeng Mining Area
Published 2021-01-01“…Combining with the geological and mining conditions of Fengfeng mining area, this paper systematically studies the characteristics of surface movement under the condition of shallow, moderate, and near kilometer mining depth. …”
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1758
Mapping Subsurface and Surface Characteristics of the Recent Pesanggrahan Landslide, Central Java, Indonesia, for Landslide Hazard Management
Published 2025-01-01“…Differences in Vp values corresponded to different geological layers. There were four distinct layers: Top Soil (TS), Clay (CL), Weathered Bedrock (WB), and Tuff Breccia (TB) within the 2D seismic refraction cross-section with Vp values ranging from 150 to 1,800 m/s. …”
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1759
Origin and spatial distribution of metals in agricultural soils
Published 2016-03-01“…Analysis of zoning map of pollution index showed that Fe, Sb and Mn are of geological sources. In fact, these metals are naturally found in soil. …”
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1760
Study on the Effect of Mineral Particle Sizes on the Spectral Characteristics of Sound and Vibrations in Rock Drilling
Published 2020-01-01“…The study provides a possibility for developing a method to evaluate the information on rock structures collected from drilling vibration or sound signals for the fine exploration of geological surveys.…”
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