Showing 1,821 - 1,840 results of 2,222 for search '"geology"', query time: 0.05s Refine Results
  1. 1821

    Engineering Characteristics and Application Analysis of Red Sandstone in the Lanzhou Metro by Yujie Li, Zhongju Feng, Yanpeng Zhu, Pengyun Wei, Fudeng Zhao

    Published 2023-01-01
    “…From the disintegration speed of red sandstone encountered during the excavation of Lanzhou metro lines 1 and 2, the relationship between physical parameters such as particle size, composition, dry density, and permeability coefficient as well as mechanical parameters such as shear wave speed, dynamic penetration test (DPT), natural uniaxial compressive strength, and disintegration speed of red sandstone was analyzed through indoor and outdoor tests and geological exploration data statistics, and classification guidelines for red sandstone are given. …”
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    Article
  2. 1822

    Fluid Flow and Heat Transport Computation for Power-Law Scaling Poroperm Media by Peter Leary, Peter Malin, Rami Niemi

    Published 2017-01-01
    “…In applying Darcy’s law to fluid flow in geologic formations, it is generally assumed that flow variations average to an effectively constant formation flow property. …”
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    Article
  3. 1823

    Description and Dynamic Analyses of the 1935 Luchedu Rock Avalanche in Sichuan, China by Jie Cui, Chunyu Gao, Zhilong Zhang, Guifu Xiang

    Published 2022-01-01
    “…Through a detailed geological survey and DEM spatial analysis, the avalanche entrainment rate of LRA was determined as 1.2. …”
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  4. 1824

    Research on the Parameter Prediction Model for Fully Mechanized Mining Equipment Selection Based on RF-WOA-XGBoost by Yue Wu, Wenlong Sang, Xiangang Cao, Longlong He

    Published 2025-01-01
    “…This paper proposes a fully mechanized mining equipment parameter prediction model based on Extreme Gradient Boosting Regression Trees (XGBoost), which is developed based on the mapping relationships among geological parameters, fully mechanized mining face conditions, and the parameters of fully mechanized mining equipment. …”
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    Article
  5. 1825

    Mature Tiankengs are biodiversity hotspots of soil microorganisms in the karst region by Junbo Yang, Xiaohui Wang, Keyi Wang, Danjuan Zeng, Ling Mo, Shuai Li, Baozhu Fang, Bhagwan Rekadwad, Wenjun Li, Gaozhong Pu

    Published 2025-01-01
    “…Mature Tiankeng, the negative geological landform surrounded by integral walls as refugia in Karst regions, conserves the unique plant species of karst regions due to isolation from human disturbances and different local microclimates. …”
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    Article
  6. 1826

    Formation Mechanism and Stability Analysis of the Hejia Landslide by Hao Zhang, Zaiqiang Hu, Xingzhou Chen, Hongru Li

    Published 2021-01-01
    “…Through field investigation and analysis of regional geological conditions, it is concluded that Hejia landslide is a large-scale landslide, through long-term sliding-bending deformation; it is generated from the external hard rock with thick layers and sliding zone for layered soft rock; the formation mechanism of landslide is as follows: (1) high-steep and hard-soft layered slope is the slope structure condition that caused the large landslide; (2) the existence of thick soft rock belt provides material conditions for the formation of slip surface; (3) certain air conditions provide displacement space for the separation and disintegration of the sliding body, and the landslide is stable at present. …”
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    Article
  7. 1827

    Bed Separation Characteristics of an LTCC Panel and Subsidence Controlling Grouting: Case Study of Longquan Coal Mine, China by Jun Zheng, Guoqing Zhou, Yuliang Zhou, Dongfeng Yuan, Tielin Zhao

    Published 2022-01-01
    “…Based on the actual geological information, the BSBG scheme for 4203 LTCC panel is proposed to mitigate the surface subsidence by taken the results of numerical simulation into consideration. …”
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    Article
  8. 1828

    The scrutiny of geomorphologic effects of Armaghankhane and Taham faults by gholam hassan jafari, Asghar rostamkhani

    Published 2016-12-01
    “…To get the answer, topographic and geologic maps and satellite images was made, and traced the geomorphologic effects of faults and corrected in different field works. …”
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  9. 1829

    Les lémuriens subfossiles dans le Nord-Ouest de Madagascar, du terrain à la diffusion des connaissances ou 15 ans de recherches franco-malgaches by Dominique Gommery, Beby Ramanivosoa

    Published 2011-10-01
    “…Through exhibitions the new Malagasy generations are sensitized to the preservation of their geological and natural heritage.…”
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    Article
  10. 1830

    Research on Mechanical Properties and Macroscopic Fracture Evolution of Rock with Different Joint Plane Features by Yongjiang Yu, Jingjing Liu, Pengbo Wang, Yuntao Yang, Shangqing Zhao

    Published 2022-01-01
    “…To analyze the safety of geological engineering, experimental research on the mechanical properties of the rock joint plane is critical. …”
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    Article
  11. 1831

    A Study of Composite Salt Erosion Resistance of Nano-Modified Cement Mortar in Early Ages by Jia Guo, Tao Zheng, Fei Mou, Yang Qin, Zhi Wang, Shiyi Zhang, Hui Li

    Published 2025-01-01
    “…., sulfate–chloride salt, represents a typical corrosion agent due to the abundance of Cl<sup>−</sup> and SO<sub>4</sub><sup>2−</sup> ions in such geological environments. In this study, we used nano-metakaolin to enhance the physical and mechanical properties of cement mortar in the early aging stages, simulating groundwater corrosion by a compound salt solution in the karst region. …”
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  12. 1832

    The Stability of Gob-Side Entry Retaining in a High-Gas-Risk Mine by Junwen Zhang, Yulin Li

    Published 2019-01-01
    “…The results of this research can provide theoretical guidance for excavation of coal mines with similar geological conditions and have some referential significance to safety and efficient production in coal mines.…”
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    Article
  13. 1833

    Modelling Seismically Induced Mesothermal Goldfields along the Deep-Rooted Cadillac-Larder Lake Fault, Abitibi, Canada by Pierre Bedeaux, Silvain Rafini, Pierre Pilote, Réal Daigneault

    Published 2018-01-01
    “…We demonstrate that (1) the ruptures along the Joannes Segment arresting on the Davidson Fault and Lapa’s bend can explain the occurrence and location of the Rouyn and Malartic goldfields; (2) the models’ validity is improved by implementing regional geological constraints; and (3) the distant gold occurrences from the CLLF, including the Bourlamaque field, can be explained by doublet seismic events along the Rivière-Héva and Lapause subsidiary faults. …”
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  14. 1834

    A High-Precision Real-Time PWV Grid Model for the China Region and Its Preliminary Performance in WRF Assimilation by Pengfei Xia, Biyan Chen, Ning Huang, Xin Xie, Qinglan Zhang

    Published 2025-01-01
    “…The high-quality PWV maps are also of significant value for monitoring and early warning of geological disasters, such as landslides and debris flows. …”
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    Article
  15. 1835

    Study on Damage Model and Damage Evolution Characteristics of Backfill with Prefabricated Fracture under Seepage-Stress Coupling by Jifeng Hou, Zhongping Guo, Weizhen Liu, Hengze Yang, WenWu Xie

    Published 2020-01-01
    “…The research results can provide a theoretical basis for the study of the stability of backfill with geological defects such as joints and fractures in deep high-stress and high-seepage water pressure coal mines.…”
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    Article
  16. 1836

    Numerical Simulation Study of Variable-Mass Permeation of the Broken Rock Mass under Different Cementation Degrees by Chong Li, Banghua Yao, Qingqing Ma

    Published 2018-01-01
    “…In order to analyze variable-mass permeation characteristics of broken rock mass under different cementation conditions and reveal the water inrush mechanism of geological structures containing broken rock masses like karst collapse pillars (KCPs) in the coal mine, the EDEM-FLUENT coupling simulation system was used to implement a numerical simulation study of variable-mass permeation of broken rock mass under different cementation conditions and time-dependent change laws of parameters like porosity, permeability, and mass loss rate of broken rock specimens under the erosion effect were obtained. …”
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    Article
  17. 1837

    PRE- FOUNDATION STUDIES USING VERTICAL ELECTRICAL SOUNDING AND SOIL SAMPLE ANALYSIS by Kazeem Oladimeji Olomo

    Published 2023-01-01
    “…The overburdenlayer with clayey materials must be removed and areas with geological structures must be taken into account.…”
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  18. 1838
  19. 1839

    Geohazard mapping and mitigations along the road corridor Gasera–Indeto, Southeast Ethiopia by Chalachew Tesfa

    Published 2025-02-01
    “…The study included field investigations and inventorying, characterization of geological situations, assessments of the hydrogeological conditions, and identification of slope instability variables. …”
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  20. 1840

    A Gas Seepage Modeling Study for Mitigating Gas Accumulation Risk in Upper Protective Coal Seam Mining Process by Cun Zhang, Lei Zhang, Mingxue Li, Chen Wang

    Published 2018-01-01
    “…The developed GSM was tested for calculating gas emission quantity from the PCSM process by utilizing the actual geological condition data of a coal mine, which is located in Hancheng, China. …”
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