Results 1 to 10 of about 3,080 (218)
An innovative destressing technology and key parameters determination in both sides of a deep roadway [PDF]
Scientific Reports, 2023 The general or single supporting theory and technology of the shallow surrounding rock of the roadway are not suitable for solving the problem of continuous large deformation of the both sides under the continuous migration of coal mass in the deep ...
Zaisheng Jiang +2 more
doaj +2 more sources
Study on deformation characteristics and support technology of roadway in deep complex stress field [PDF]
Scientific ReportsThe deformation of deep roadway is more severe under the influence of high stress, especially in the complex stress field, which is difficult to support and seriously affects the safety.
Sheng-jun Li +6 more
doaj +2 more sources
Physical model study on the mechanism of floor heave for the deep-buried roadway excavated in soft rock of gently inclined thin strata [PDF]
Scientific ReportsStrata structure is an important factor affecting floor heave of deep soft rock roadway, however, the mechanism of floor heave induced by the rock structure has not been fully understood, so it is still necessary to study the floor heave of deep-buried ...
Feng Chen +5 more
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Research on large deformation mechanism of deep roadway with dynamic pressure
Energy Science & Engineering, 2020 In this paper, the large deformation mechanism of deep dynamic pressure roadway is studied from the perspective of the formation and development of plastic zone, and creep and damage of rock mass.
Lei Fan +3 more
doaj +2 more sources
Geofluids, 2022 A pressure relief and permeability enhancement method through short-distance floor roadway was proposed to solve the difficult outburst prevention during the gas extraction at the coal roadway strips in deep outburst coal seams with high ground stress ...
Benqing Yuan +3 more
doaj +2 more sources
Control techniques for creep deformation of surrounding rock in deep underground roadways. [PDF]
PLoS OneAs resource extraction extends to greater depths, surrounding rock in deep underground roadways exhibits pronounced creep deformation due to the coupled effects of high in-situ stress and time-dependent behavior. Conventional support systems face significant challenges in maintaining long-term stability under such conditions.
Ge L +5 more
europepmc +3 more sources
工程科学学报, 2022 The joint exploitation of deep mineral and geothermal resources strategy provides an effective way to realize the economic exploitation of “resources-thermal” and achieve a win-win situation.
Zhi-qiang LIU +3 more
doaj +1 more source
Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway
Advances in Civil Engineering, 2021 In order to explore the stability control of surrounding rock in the process of deep mining, comparative analysis of stress, deformation, and fracture characteristics of surrounding rock of deep and shallow mining roadway in dongbaotou coal mine ...
Chengjia Wu, Tao Qin, Lei Wang, Zhi Liu
doaj +1 more source
Research on Permeability Enhancement Model of Pressure Relief Roadway for Deep Coal Roadway Strip
Geofluids, 2022 Aiming at the problem of permeability enhancement in deep coal roadway strip, it proposed a pressure relief roadway permeability enhancement model, and the model was verified through experiments, theoretical calculations, and field tests. The experiment reveals that the unloading of gas-containing coal can achieve the effect of permeability enhancement.
Zhonghua Wang +3 more
openaire +2 more sources
Energies, 2022 For deep-buried thick top-coal roadways under high stress, there exists great difficulty in controlling the stability of the surrounding rock as well as in the necessity for low driving speeds.
Chengjun Hu +4 more
doaj +1 more source