Results 11 to 20 of about 18,778 (96)
Study on a Surrounding Rock Pressure Calculation Method for Super-Large Section Highway Tunnels
Symmetry, 2019 This paper presents new correlations for estimating the surrounding rock pressure of symmetrically shaped tunnels based on a symmetrical numerical model. Surrounding rock pressure is defined as the load acting on the support structure due to the deformation of the surrounding rock after tunnel excavation.
Hongjie Gao +3 more
openaire +1 more source
Influence of anchorage body post-expansion on radial pressurization of surrounding rock
Meikuang Anquan, 2023 Aiming at the problem of how to give full play to the reverse extrusion ability of bolt to the surrounding rock to make the interface stress balance quickly and enhance the active support effect, we propose the anchorage method of radial pressurization.
openaire +1 more source
Characteristics and Calculation of Surrounding Rock Pressure in Tunnel Lining With Backward Voids
Advances in Civil EngineeringThe distribution of surrounding rock pressure acting on the lining of a tunnel varies. This can cause stress concentration and accelerate lining deterioration that severely endangers the safety of tunnel operation. Owing to the complexity of the interaction between the lining and surrounding rock structure as well as the diversity of cavities, no ...
Jingjian Bi +5 more
openaire +2 more sources
Gong-kuang zidonghua, 2021 The roadway with dynamic pressure and high slope refers to the roadway which is seriously affected by dynamic pressure and has a high slope. This type of roadway not only experiences disturbances in the excavation process, but also has to experience the disturbance of the adjacent working face and this working face in the later mining process.
SHEN Binxue +5 more
openaire +1 more source
Applied SciencesIn the context where the surrounding rock of deep coal mine roadways is in a complex mechanical environment of “three highs and one disturbance”, mining disturbances are prone to cause instability and damage to the roadways, and the severe deformation of the south wing main roadway caused by mining disturbances in the 2404 working face of a certain ...
Jianxi Ren, Kai Su, Chengwei Sun
openaire +1 more source
International Journal of Mining Science and Technology, 2017 Research on the permeability and pressure distribution characteristics of the roadway surrounding rock in the excavation damaged zone (EDZ) is beneficial for the development of gas control technology. In this study, analytical solutions of stress and strain of the roadway surrounding rock were obtained, in which the creep deformation and strain ...
Yi Xue +3 more
openaire +2 more sources
Study on surrounding rock pressure of deep jointed rock tunnel based on pressure arch theory
Journal of Hebei University of Science and TechnologyTo study the calculation method of rock pressure in jointed rock tunnels, based on the theory of tunnel pressure arch, the influence of rock hardness, integrity, and shear strength of structural planes on tunnel pressure arch was analyzed through discrete element numerical simulation.
Xiang DING +6 more
openaire +1 more source
Calculation of Surrounding Rock Pressure Based on Pressure Arch Theory [PDF]
Proceedings of the 2016 5th International Conference on Advanced Materials and Computer Science, 2016 openaire +1 more source
Surrounding Rock Pressure of Deep Roadway and Influences on Advance Support
DEStech Transactions on Computer Science and Engineering, 2017 Guang-Hui XUE +4 more
openaire +2 more sources
Data-driven prediction framework of surrounding rock pressure in a fully mechanized coal face with temporal-spatial correlation. [PDF]
Sci RepSong Y +5 more
europepmc +1 more source