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Rational permeability coefficient of a permeable lining for composite tunnel lining structures
tunneling engineering deeply-buried tunnel composite lining structure concrete permeable lining grouting circle parameter permeability coefficient reasonable value
2018/5/11
Various factors influence the tunneling are simplified considering the axial symmetry of the composite lining structure. The analytical expressions for the seepage field，stress，and displacement in the...
Losses in superconducting Niobium Films caused by Interface Tunnel Exchange
Superconducting cavities niobium Quadrupole Resonator interface tunnel exchange surface resistance
2012/4/20
Identifying the loss mechanisms of niobium film cavities enables an accurate determination of applications for future accelerator projects and points to research topics required to mitigate their limi...
Topological Insulator Magnetic Tunnel Junctions: Quantum Hall Effect and Fractional Charge via Folding
Topological Insulator Magnetic Tunnel Junctions Quantum Hall Effect Fractional Charge Folding
2012/2/27
We provide a characterization of tunneling between coupled topological insulators in 2D and 3D under the influence of a ferromagnetic layer. We explore conditions for such systems to exhibit integer q...
The Effection of Stress Path on the Rock Relaxation Area of Large-Section Tunnel
Large Section Tress-Path Numerical Simulation Tunnel Relaxation-Areas
2011/12/21
Construction of large-section tunnel leads to changing of rock stress and comes about complicated stress-path, which causes continuously redistribution of rock stress with changing of stress path, lea...
Research on the Dynamic Responses of Shallow-Buried Depth Tunnel under the Action of Rayleigh Waves
Bursting Test Earthquake Dynamic Response Finite Difference Method Rayleigh Waves Shallow-Buried Depth Mountain Tunnel
2011/12/16
It has been proved by the seismologic observation of 5.12 Wenchuan Earthquake that a large number of shallow-buried depth mountain tunnels at the portal are underwent severe damage. Earthquake waves, ...
Stability Analysis of Highway Tunnel Portal Slope in Shiyan Area
Highway Tunnel Landslide Mechanism Shiyan Area Stability Analysis
2011/12/20
Under the control of the tow-Yun fracture, the geological conditions are complicated and the rock strata is broken in Shiyan area ,in the northwest of Hubei province, and the rock mass is weathered in...
Shear Plane Found in the Interior of Soil/Rock near a Tunnel Damaged in 2004 Niigata-Ken Chuetsu Earthquake
Boreholes Wells Landslide Niigata-ken Chuetsu Earthquake Tunnel
2011/12/20
Landslides triggered by earthquakes are one of the most damaging natural disasters. Recently, cutting-edge technologies such as Light Detection and Ranging (LiDAR), Interferometric Synthetic Aperture ...
Study on Earthquake Damage Characteristic on Mountain Tunnel and Analysis
Active Fault Earthquake Damage Mountain Tunnel Seismic Design
2011/12/15
This paper collects earthquake damage data and research on tunnel in recent years(Wenchuan earthquake,Ms 8.0;Yushu earthquake, Ms 7.1, Chi-Chi Earthquake,Ms 7.6 and so on). Damage patterns and charact...
Research on Dynamic Response of Underground Circular Lining Tunnel under the Action of P Waves
Circular Lining Tunnel Dynamic Stress Concentration Earthquake Dynamic Response P Waves Series Solution
2011/12/22
Dynamic stress concentration of tunnels and underground engineers under the action of earthquake waves is a fundamental problem. Selecting circular lining tunnel in semi-infinite space under the actio...
Tailoring THz radiation by controlling tunnel photoionization events in gases
Tailoring THz radiation controlling tunnel photoionization events gases
2011/8/3
Abstract: Applications ranging from nonlinear terahertz spectroscopy to remote sensing require broadband and intense THz radiation which can be generated by focusing two-color laser pulses into a gas....
Water Pressure Numerical Analysis of Lining Structure in Mountain Tunnel
Lining Mountain Tunnel Numerical Analysis Seepage Water Pressure
2011/12/20
It is hard to control the high pressure water in mountain tunnel construction. Distribution of seepage field, stress field and displacement field of tunnel are analyzed by numerical method with equiva...
Quality Monitoring for Waterproof and Drainage of Loess Road Tunnel
Construction Technology Loess Tunnel Quality Monitoring Waterproof and Drainage
2011/12/21
Based on practice road tunnel engineering in Gansu province and near areas in west china, the main construction technology and emphasis of quality monitoring of waterproof and drainage of loess road t...
A Study on Forming Mechanism of Gas Tunnel in Non-Coal Strata
Forming Mechanism Gas Disaster Gas Tunnel Non-Coal Strata
2011/12/21
In addition to the gas tunnel in coal strata, there are a large number of gas tunnel in non-coal strata, these tunnels itself do not through the coal strata, but all encountered the gas problem in the...
Numerical Simulation of Grout Curtain in a DEWPR Tunnel
Drainage External Water Pressure External Water Pressure Resistant Tunnel Grouting Reinforcement Numerical Method
2011/12/21
Grouting is often adopted in a tunnel to resist high external water pressure; the tunnel is defined as External Water Pressure-Resistant Tunnel (EWPR Tunnel). When the grouting reinforcement does not ...
Influence of Traffic Flow Patterns on Air Quality inside the Longest Tunnel in Asia
Hsueh-shan Tunnel Air pollutants Traffic flow Piston effect
2016/3/28
The long tunnel is a fixed, semi-closed environment where excessive concentrations of air pollutants are easily
accumulated. This can potentially have a serious affect on drivers' health, especially ...