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1001
Experimental Research of the Influence of Microfracture Morphology on Permeability of Shale Rock
Published 2021-01-01“…The permeability variation of shale gas reservoir after fracturing is inevitable, while the influence of fracture length and fracture width on permeability and seepage characteristics of shale rock is a mystery. …”
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1002
Numerical Simulation of Soil Displacement and Settlement in Deep Foundation Pit Excavations Near Water
Published 2021-01-01“…This study uses a numerical simulation method to study the stability of the deep foundation pit near water based on the Biot three-dimensional seepage-stress coupling model, with the open-cut section on the south bank of the Jinan Yellow River Tunnel Project as the engineering field test. …”
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1003
Mathematical Model and Numerical Simulation of Coalbed Methane Migration Considering the Adsorption Expansion Effect
Published 2022-01-01“…Based on the experimental results, considering the coupling effects of heat transfer, water seepage, coal and rock mass deformation, and coalbed methane desorption and seepage, a mathematical model of heat transfer–deformation–seepage coupling coalbed methane migration was established, and a numerical simulation study was carried out on the heat injection-enhanced coalbed methane mining project. …”
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1004
Disastrous Mechanism of Water Discharge in Abandoned Gob above the Stope in Mining Extra-Thick Coal Seam
Published 2021-01-01“…The influencing distance of mining-induced seepage is about 80 m in front of the working face. …”
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1005
Modeling agro-hydrological surface-subsurface processes in a semi-arid, intensively irrigated river basin
Published 2025-02-01“…Study focus: The process of implementing irrigation in large river basins often results in significant changes in hydrologic pathways and fluxes, such as canal seepage, runoff, recharge, pumping, and groundwater-river exchange. …”
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1006
Radiative origin of fermion mass hierarchy in left-right symmetric theory
Published 2025-01-01“…The third generation masses originate from the seesaw mechanism at the tree-level, while those of the second and first generations emerge from one-loop and two-loop radiative corrections, respectively, with a progressive increase in the rank of the mass matrix. …”
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1007
Deformation and Stability Analysis of a Core Rockfill Dam with Leakage
Published 2022-01-01“…To analyze the leakage causes, a series of seepage tests were conducted on the dam materials in this paper. …”
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1008
Dam Risk Identification Method Based on EAHP-EWM-TOPSIS
Published 2024-01-01“…To address the uncertainty and fuzziness of dam risk indicators, this paper proposes a dam risk identification model based on the EAHP-EWM-TOPSIS game combination model.This is to determine the subjective and objective weights of risk evaluation indicators by extension analytic hierarchy process and entropy weight method respectively.Meanwhile, the game theory is introduced to determine the optimal combination weight, and a weighted standardized decision matrix is constructed.Then, the TOPSIS method is employed to calculate the relative proximity between each risk factor and the ideal solution as the basis for ranking risk factors to identify the main risk sources of dams.The engineering example shows that the main risk factors affecting the safe service of the dams are dam seepage and cross-bank seepage, with the relative proximity of 0.712 7 and 0.855 2 respectively.The identified main risk factors are consistent with the actual engineering situation, which verifies the model effectiveness.The differentiation degree of this model is more obvious than other models, providing an effective basis for dam reinforcement and risk management.…”
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1009
Erosion Effect on Non-Darcy Hydraulic Characteristics of Limestone and Mudstone Mixture
Published 2022-01-01“…In order to study the water inrush mechanism of faulted rock mass, a series of erosion seepage experiments were carried out to test the non-Darcy hydraulic properties of a limestone and mudstone mixture. …”
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1010
Investigation of the Models of Flow through Fractured Rock Masses Based on Borehole Data
Published 2020-01-01“…These relationships were then used to establish a model for estimating the permeability coefficient of rock mass that takes into account the influence from the confining pressure on the seepage flow. The proposed model can reduce the number of hydraulic tests which are time consuming and very costly and allow the determination of change in the permeability coefficient throughout the borehole. …”
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1011
Development and Application of Analogous Materials for Fluid-Solid Coupling Physical Model Test
Published 2022-01-01“…The coupling effect between the stress field formed by rock mass and the seepage field formed by groundwater has an important impact on the stability of underground engineering. …”
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1012
Experimental Study on the Permeability of Weakly Cemented Rock under Different Stress States in Triaxial Compression Tests
Published 2018-01-01“…Mudstone and shaly coarse sandstone samples of Jurassic units in northwestern China were collected to study the seepage mechanism of weakly cemented rock affected by underground mining operations. …”
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1013
Experimental Study on the Influence of Hydromechanical Boundary Conditions on Shear-Flow Coupling Characteristics of Granite Joints
Published 2022-01-01“…By conducting laboratory tests and numerical experiments on the shear-flow coupling of rock joints under constant normal stiffness (CNS) and constant normal stress (CNL) boundary conditions, the influence of normal boundary conditions and seepage pressure on the shear mechanical and flow characteristics of joints were investigated. …”
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1014
Spatiotemporal Evolution Characteristics of Fluid Flow through Large-Scale 3D Rock Mass Containing Filling Joints: An Experimental and Numerical Study
Published 2021-01-01“…This study analyzes the spatiotemporal evolution characteristics of seepage through a large-scale rock mass containing a filling joint. …”
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1015
Numerical simulation of frozen wall formation in water-saturated rock mass by solving the Darcy-Stefan problem
Published 2019-07-01“…In this paper, we study the influence of groundwater seepage on the frozen wall formation in fluid-saturated rock mass in the framework of the two-dimensional two-phase Darcy-Stefan problem. …”
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1016
Rainfall Infiltration under Various Building Layouts Using Concrete Microseepage Wells
Published 2022-01-01“…Each building being surrounded by seepage wells is the optimal layout scheme to alleviate the flooding/water logging disasters. …”
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1017
Experimental Study on Curtain Grouting with Large Hole Spacing and Deep Holes in the Panlong Lead-Zinc Mine
Published 2022-01-01“…In the upper reaches of the Datangxia Water Control Project,the high-pressure head formed by water storage will increase the water inflow in the Panlong lead-zinc mine to a certain extent and thus affect the safety of underground production.In order to eliminate the adverse effects brought by water storage,two anti-seepage curtains are planned to be built on the east and west sides of the mine.In addition,to provide reasonable technical parameters for the actual grouting construction,this paper carries out the grouting test at a suitable position on the axis of the curtain.The test results show that:① The double-row grouting with 3 m row spacing and 6 m hole spacing can basically meet the anti-seepage standard of curtain design when arranged in a plum blossom shape;② cement clay slurry can be applied in dealing with special sections such as large karst caves and wide fissures in karst areas;③ in terms of the vertical heterogeneity of karst development,the bottom elevation of hanging curtain with deep holes in karst areas should enter the aquitard,with a depth of not less than 10 m.The results of the grouting test provide a reference for the design and construction of curtain grouting with large hole spacing and deep holes in karst areas.…”
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1018
Phenomenology of keV scale sterile neutrino dark matter with S4 flavor symmetry
Published 2020-01-01“…The structures of the mass matrices involved in inverse seesaw within the S4 framework naturally give rise to correct neutrino mass matrix with non-zero reactor mixing angle θ13. …”
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1019
Impact of posterior septectomy on olfaction in endoscopic endonasal transsphenoidal surgery
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1020
Numerical Investigation of Complex Thermal Coal-Gas Interactions in Coal-Gas Migration
Published 2018-01-01“…Understanding the influence of temperature on the gas seepage of coal seams is helpful to achieve the efficient extraction of underground coal seam gas. …”
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