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1561
Experimental Study on Characteristics of Seismic Damage and Damping Technology of Absorbing Joint of Tunnel Crossing Interface of Soft and Hard Rock
Published 2020-01-01“…However, the survey of seismic damage showed that the seismic damage of tunnel also mainly occurred in geological section at interface of soft and hard rock. …”
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1562
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1563
New Occurrence of Seifertite and Stishovite in Chang’E‐5 Regolith
Published 2022-06-01“…The sampling site of Chang’E‐5 may contain distal ejecta, which is critical for constraining the impact events and interpreting the constitution of the target geological units. Here, we report a silica fragment consisting of seifertite, stishovite, α‐cristobalite‐like phase, and silica glass in Chang’E‐5 regolith. …”
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1564
A Critical Review of the Recent Improvements in Minimizing Nuclear Waste by Innovative Gas-Cooled Reactors
Published 2008-01-01“…As a conclusion, we can state that, coupling HTR with GCFR, the geological disposal issues concerning high-level radiotoxicity of MA can be considerably reduced.…”
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1565
Les primates non-humains pliocènes et plio-pléistocènes d’Afrique du Sud
Published 2017-01-01“…The cercopithecines are very diverse but all belong to Papionina. During the same geological period, the fauna from South Africa differs from the East African one by the different diversity of Cercopithecoidea by which colobines and theropithecines are poorly represented but also by a greater number of species of Parapapio, a form close to baboons. …”
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1566
Research on Fracture and Energy Evolution of Rock Containing Natural Fractures under Cyclic Loading Condition
Published 2021-01-01“…For rock engineering in cold regions, the naturally fractured rock is susceptible to repeated freeze-thaw (F-T) weathering, coupled fatigue conditions of freeze-thaw (F-T), and stress disturbance act on rock mass, which can lead to the instability of rock engineering and even occurrence of geological hazards. Knowledge of how natural fracture affects the overall fracture evolution of freeze-thawed rock is crucial to rock mass stability. …”
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1567
Effect of Loading Rates on Mechanical Characteristics and Rock Burst Tendency of Coal-Rock Combined Samples
Published 2022-01-01“…Understanding the strain energy and rock burst tendency of rock or coal under different loading rates is critical in many geological projects, such as mining, tunneling, and other underground engineering project. …”
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1568
Prospects of "Slate Revolution" and Problem of Power Industry of China
Published 2013-02-01“…The core question is whether China can successfully adapt the extraction technology to its geologic conditions, and most importantly whether “fracking” of shale gas will help to alleviate the environmental degradation caused by rapid GDP growth, and help to increase energy security of Chinese economy.…”
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1569
Investigation of Water Leakage of Metro Segments Caused by Metro Underpass Structures
Published 2021-01-01“…In the present study, based on field investigations and geological data, confined water is identified as the source of segment leakage on Line 5 of Hangzhou Metro in China. …”
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1570
A Laboratory‐Validated, Graph‐Based Flow and Transport Model for Naturally Fractured Media
Published 2025-01-01“…Abstract Fractures are a primary feature controlling flow, transport, and coupled processes in geologic systems. To date, experimental image‐based observations of these processes have been challenging. …”
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1571
Presplit Blasting Technique in Treating Hard Overlying Strata: From Numerical Simulation to Field Practice
Published 2021-01-01“…With the consideration of the geological and mining condition of the research area, the critical parameters of the presplit blasting technique (e.g., unsaturation coefficient, borehole spacing, and the slit width) were consequently determined via the numerical simulation with the application of LS-DYNA. …”
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1572
Random fields and up scaling, towards a more predictive probabilistic quantitative hydrogeology
Published 2023-02-01“…Continuous enrichment of geological/geostatistical models leads to manipulating hydrogeological models characterized by many parameters or hyperparameters corresponding to statistical aggregates that may be poorly estimated due to the scarcity of field data. …”
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1573
Research on Shield Tunnelling Parameters Correlation in Composite Strata
Published 2022-01-01“…The complex formation has complicated geological changes, including soft rock, hard rock, and soft and hard inhomogeneous formation. …”
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1574
Analysis on Loose Circle of Surrounding Rock of Large Deformation Soft-Rock Tunnel
Published 2020-01-01“…With the rapid development of tunnel construction in China, deep buried and long tunnel projects are emerging in areas with complex engineering geological conditions and harsh environment, and thus large deformation of tunnels under conditions of high in situ stress and soft rock becomes increasingly prominent and endangers engineering safety. …”
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1575
Visualization Method for Porous Groundwater Seepage Flow Field Based on Particle Flow: Case of Yancheng City in the East Coast of China
Published 2022-01-01“…Results show that particle flow can be effectively applied to the visualization of groundwater seepage flow field and provide spatial auxiliary decision-making support for the sustainable exploitation of groundwater and the formulation of geological environment protection measures.…”
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1576
Characteristics of Generating Carbon Oxides at Low-temperature Oxidation Stages of Low-Rank Coal
Published 2022-01-01“…The research results indicate that the low-temperature oxidation phase of coal is divided into four main phases, namely, the physical-chemical adsorption phase, the desorption phase, the dynamic equilibrium phase, and the oxidative adsorption phase, each of which has different characteristics for the production of carbon-oxygen compounds, which is important for the prediction of coal spontaneous combustion and the prevention of coal geological disasters.…”
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1577
Experimental Methods to Assess the Effectiveness of Soil Conditioning with Foam in Fully Weathered Granite
Published 2019-01-01“…This method is widely used in EPB tunnelling owing to its strong applicability in different hydrological and geological conditions. When applying the foam conditioning method under different circumstances, it is necessary to optimize the conditioning parameters. …”
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1578
Analysis of External Water Pressure for a Tunnel in Fractured Rocks
Published 2017-01-01“…Calculations were based on the integrity and permeability of rocks, the extent of fracture development, and the combination of geological and hydrogeological conditions in the Huizhou pump-storage hydropower station. …”
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1579
The Stability Analysis of Roadway near Faults under Complex High Stress
Published 2020-01-01“…Based on geological conditions of 3318 working face haulage roadway in Xuchang Coal Mine, as well as the space-time relationship with surrounding gob, theoretical analysis and numerical simulation were used to study the influence of fault structure on the original rock stress of 3318 working face transport roadway. …”
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1580
Experimental Studies on the Changes in Resistivity and Its Anisotropy Using Electrical Resistivity Tomography
Published 2012-01-01“…Our results show that with increasing pressure, resistivity and the decreased (D region) and increased (I region) resistivity regions have complex behaviors, but when pressure is higher than a certain value, the average resistivity decrease and the area of D region expand gradually in all time with the increase of pressure, which may be significant to the monitoring and prediction of earthquake, volcanic activities, and large-scale geologic motions. The effects of pressure on λ∗ and α are not very outstanding for dry magnetite samples.…”
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