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Resistance behavior of Constant-Resistance-Large-Deformation bolt considering surrounding rock pressure

, 2021
This paper proposes a new analytical solution of the constant resistance of Constant-Resistance-Large-Deformation (CRLD) bolt. The solution incorporates two novel developments: (i) a new solution of the constant resistance based on the thin-walled circle
Wang Bo, Manchao He, Y. Qiao
semanticscholar   +1 more source

FBG Earth Pressure Sensors Applied in Surrounding Rock Pressure of Tunnel

Applied Mechanics and Materials, 2013
During the period of tunnel excavation, shoring, forming and long-term operation, stress changes of tunnel surrounding rock are complex, the real-time monitoring of surrounding rock pressure is the key factor in ensuring long-term stability in tunnel.
Zhou Chun Cai   +7 more
openaire   +1 more source

Calculation of Surrounding Rock Pressure on Multi-Arch Tunnel

International Conference on Transportation Engineering 2009, 2009
It is the key to design reasonably how to calculate pressure of surrounding rock on multi-arch tunnel in load structure method. At present, calculation of pressure of surrounding rock on multi-arch tunnel in current "Code for Design of Road Tunnel" recurs to "Code of Design on Tunnel of Railway".
Zhengguo Zhu   +2 more
openaire   +1 more source

Pressure Relaxation in a Hole Surrounded by a Porous and Permeable Rock

Combustion, Explosion and Shock Waves, 2002
The problem of explosion in a hole surrounded by a porous medium is considered. Integral equations describing pressure relaxation in the hole due to gas filtration into the surrounding porous space are obtained within the framework of plane one-dimensional, radial, and spherical formulations.
V. Sh. Shagapov   +3 more
openaire   +1 more source

A new fracture permeability model: Influence of surrounding rocks and matrix pressure

Journal of Petroleum Science and Engineering, 2020
Abstract An appropriate fracture permeability model needs to include terms that characterize the effects of surrounding rocks and varying matrix pore pressure. This paper describes the use of Eshelby's inhomogeneity theory to derive equations that can be used to predict fracture permeability behavior for different shapes of reservoirs whose elastic ...
Peng Yu   +7 more
openaire   +1 more source

Elastoplastic Analysis of Surrounding Rocks of the Pressure Tunnel

Applied Mechanics and Materials, 2013
According to the triple shear unified yield criterion, the mechanical behavior of the pressure tunnel was put forward. The calculation formulas of the radius of plastic zone were deduced with considerations of the effects of the intermediate principal stress.
openaire   +1 more source

Pressure Relaxation in a Hole Surrounded by Porous and Permeable Rock in Hole Pressure Tests with Gas Injection

Journal of Applied Mechanics and Technical Physics, 2006
The pressure testing of a hole in porous and permeable rock by gas injection is considered. An integral equation for the hole pressure relaxation is obtained whose numerical and analytical solutions describe the dependence of the relaxation time of hole pressure on the reservoir properties of the surrounding porous rock as well as on the initial gas ...
Shagapov, V. Sh.   +2 more
openaire   +1 more source

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