Results 61 to 70 of about 153,248 (205)
Sustainability, 2023 During excavation in a deep tunnel, dynamic disaster is an extremely severe impact failure. The necessity of an energy-absorbing support system is analyzed for different characteristics of dynamic disaster (rockburst) failure. The energy-absorbing support system design includes a combination of early-warning, energy-absorbing bolts, and other ...
Yunqiu Liu +4 more
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Application of Constant Resistance and Large Deformation Anchor Cable in Soft Rock Highway Tunnel
Advances in Civil Engineering, 2019 Muzhailing Highway Extra-long Tunnel in Lanzhou, Gansu Province, China, belongs to the soft rock tunnel in the extremely high geostress area. During the construction process, large deformation of the soft rock occurred frequently. Taking the no.
Xiaoming Sun +4 more
doaj +1 more source
Evaluation Method of Roof Damage Degree and a Case Study in Maoping Lead-Zinc Mine, Yunnan
Shock and Vibration, 2022 With the continuous increase in the mining depth of underground mineral resources, the geological conditions encountered in mining have become more complex.
Jun Yang +3 more
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Research of high pre-stress NPR support technology in deep shaft roadway engineering
矿业科学学报, 2023 Deep coal resources are the crucial backup for China's energy security in the future. However, large deformation and instability of rock mass in deep roadway engineering still poses serious problems in the deep "three high and one complex" geomechanical ...
Sun Xiaoming +3 more
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Seismic Behavior of Qinghai-Tibetan Railway Embankment in Permafrost Regions: A Case Study
Shock and Vibration, 2023 The temperature is a critical factor that determines the unfrozen water content and ice content in the frozen soil. In view of mechanical properties of the frozen soil depend on the volume of components of the four-phase systems, thus the temperature has
Tuo Chen, Jianzhou Wang, Bo Wang
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Heat extraction efficiency in deep geothermal energy mining and implications for EGS-E
工程科学学报, 2022 Geothermal energy has recently attracted substantial attention due to its abundant reserve, cleanness, and sustainability. Geothermal reservoirs can be stimulated via different approaches/techniques that lead to different heat extraction efficiencies and
Ying-chun LI +3 more
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English for Study and Work: Coursebook in 4 books. Book 2 Obtaining and Processing Information for Specific Purposes [PDF]
, 2015 Подано всі види діяльності студентів з вивчення англійської мови, спрямовані на розвиток мовної поведінки, необхідної для ефективного спілкування в академічному та професійному середовищах.
Зуенок, И. И. +15 more
core
Deep Underground Science and Engineering Lab: S1 Dark Matter Working Group
, 2006 A study of the current status of WIMP dark matter searches has been made in the context of scientific and technical planning for a Deep Underground Science and Engineering Laboratory (DUSEL) in the U.S. The table of contents follows: 1. Overview 2. WIMP Dark Matter: Cosmology, Astrophysics, and Particle Physics 3. Direct Detection of WIMPs 4.
Akerib, Daniel S. +13 more
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Integrated analysis of geofiltrational parameters in the context of underground coal gasification relying upon calculations and modeling [PDF]
, 2018 Objective of the paper is to substantiate and implement the integrated approach aimed at the studies of filtration and mass-transfer processes within roof rocks of coal seams in the context of their underground ...
Dereviahina, Nataliia +7 more
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Scientific Programming, 2022 Huanghuai area is rich in coal resources, but due to the increasingly complex geological environment faced by coal mining, the complexity of structural stress is one of the main problems. In order to find out the distribution law of deep in situ stress in the Huanghuai area, the in situ stress measurement data of 81 effective measuring points in 24 ...
Wenbin Tao +4 more
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