Results 21 to 30 of about 19,664 (248)
The Relationship Between the Manifestations of Rock Pressure and the Relative Deformation of Surrounding Rocks [PDF]
E3S Web of Conferences, 2017 On the basis of analysis of the manifestations of the rock pressure in domestic and abroad practice the authors have the aim to research above named manifestations in conditions of new coal deposits of Kuzbass (Erunakovskoe, Kazankovskoe etc.) and to form the normative document for mining in these conditions.
Kostyuk Svetlana +3 more
openaire +2 more sources
Meitan xuebao, 2023 Rock bolt support and borehole pressure relief change the medium properties of roadway surrounding rock, form the roadway gradient surrounding rock structure with three media and two planes, increase the absorption and attenuation ability of stress waves,
Aiwen WANG +7 more
doaj +1 more source
Yantu gongcheng xuebao, 2022 In densely populated urban areas, large rectangular pipe jacking projects are becoming increasingly popular. One of the most difficult aspects of the pipe jacking construction is to control the deformation of the surrounding rock.
SHE Fang-tao 1, 2, WU Zheng-qi 1, ZHOU Wei-zong 1, LIU Guo-ping 3, LI Lei 3
doaj +1 more source
Energies, 2022 Previous studies have shown that the influence of deep dynamic pressure on the surrounding rock control of a coal roadway is one of the difficulties in mine roadway support.
Shengrong Xie +6 more
doaj +1 more source
Hydraulic Transient Impact on Surrounding Rock Mass of Unlined Pressure Tunnels
Water, 2023 The frequent pressure pulsations due to hydraulic transients in hydropower plants induce cyclic loading on the rock mass that may contribute to increased instances of block falls and increased risk of tunnel collapse over the power plant lifetime. This study focuses on understanding the effect of frequent start and stop sequences of hydropower in ...
Sanyam Ghimire +2 more
openaire +1 more source
Advances in Civil Engineering, 2021 When carrying out construction that underpasses existing subway tunnels, the surrounding rock is frequently disturbed. Therefore, it can loosen easily and become unstable, which makes its stability difficult to control.
Zaiqiang Hu +3 more
doaj +1 more source
Yantu gongcheng xuebao, 2023 The in-situ tests on the single-layer lining structure for water conveyance tunnels in South China are carried out, the mechanical response of the structure under the internal pressure in the surrounding rock is revealed, and the influences of different ...
MO Jianhao 1, TANG Xinwei 1, YAN Zhenrui 2
doaj +1 more source
Simulation study on slip failure of roadway surrounding rocks containing weak layer
Meikuang Anquan, 2021 To study the influence of weak layer on the slip failure of surrounding rocks of coal mine roadway, numerical models of coal mine roadway with weak layer are created by using the numerical simulation software UDEC.
DING Minjie, GUO Pengfei, PENG Yanyan
doaj +1 more source
Permeability characteristics of fractured rock mass: a case study of the Dongjiahe coal mine
Geomatics, Natural Hazards & Risk, 2020 The intricate distribution of fractures in rock mass leads to the anisotropy of permeability characteristics of the rock mass, which affects the overall stability of rock mass.
Ke Ma +5 more
doaj +1 more source
Advances in Civil Engineering, 2021 This research aims to study the surrounding rock loosening pressure variation law of tunnel in the fold area. Based on the calculation method of surrounding rock loosening pressure for shallow tunnel, a new calculation model of the surrounding rock ...
Jianhao Liu, Caijin Xie, Junying Rao
doaj +1 more source