The Tunnel
Twin-tunnelling-induced changes to clay stiffness
... Tunnels used for transportation in the urban environment are often constructed in pairs. Projects where tunnels are constructed sequentially and within a close proximity are referred to as ‘Twin- tunnelling’. Case ...
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Centrifuge modelling of tunnelling with forepoling
... A series of eight two-dimensional plane strain centrifuge model tests were conducted to investigate how the installation of the ground supports affect the plastic collapse mechanism surrounding a tunnel excavation ...
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Structural Response Spectra under Passing Underground Trains
... The three-dimensional model investigated is shown in Figure 1. The model possesses a vertical plane of symmetry removing the need to model the whole system. This model was set to 110 m in length (along railway line, to ...
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Evaluating the distance between the femoral tunnel centers in anatomic double-bundle anterior cruciate ligament reconstruction using a computer simulation
... An analysis of the AM and PL center geography in the CT CAD models demonstrated that the average dis- tance between the tunnel centers was 10.2 mm in males and 9.4 mm in females. These results would be a guide to ...
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Safety Study on Blasting Vibration of Down Tunnel in Neighboring Villages
... highway tunnel is constructed according to grade III and grade IV of surrounding rock, and the construction method of upper and lower sections of positive steps is ...the tunnel, it is necessary to cross ...
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Assessment of Vehicle Fire Development in Road Tunnels for Smoke Control Ventilation Design
... road tunnel designs. The operation of the tunnel ventilation system is critical as its purpose during a fire emergency is to control the movement of smoke and heated gas away from the fire to provide a ...
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Rectangular Microstrip Antenna Loaded with Tunnel Diode
... frequency the oscillation ceases. That why this frequency shows that the operating frequency of the antenna should be less than the resistive cut off frequency. And the self- resonance frequency is the frequency at which ...
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Research on Natural Gas Pipeline Leakage and Ventilation Scheme in Tunnel
... on tunnel ventilation, the focus of the research is mainly on the tunnels in highway and railway, and the research on the tunnel of oil and gas pipeline is ...However, tunnel of oil and gas pipeline ...
12
The Types of Tunnels Maintenance in Umbrella Arch Method
... the tunnel digging, as a result of the rapid decline in normal stress and ultimately reaching the zero in drilling front, the induced stress concentration arises (point 1); so tensions over the field without ...
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Creating a decision support matrix for the design of a submerged floating tunnel
... presented visually and more extensively. In the table it can be seen that the buoyancy for the free SFT is lowest and the tethered type of SFT has the highest buoyancy. As explained before, the pontoon and tethered type ...
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Effect of Relative Density on Settlements above Tunnels in Sands
... model tunnel across the strong box, the sands could not be poured from the top of the ...model tunnel were placed Perspex face down and the sand was poured in line with the ...the tunnel crown was ...
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Dynamic response of flexible square tunnels: centrifuge testing and validation of existing design methodologies
... Similar to the dynamic bending moments, residual values were recorded for the lining axial forces (Fig. 17). These residuals were generally smaller than the bending moment ones and were found to be larger along the ...
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A stingless bee can use visual odometry to estimate both height and distance
... similar tunnel (Srinivasan et ...the tunnel for some distance and then made a series of 180deg searching turns ...experimental tunnel dwindled to zero, we re-stimulated foraging by reintroducing a ...
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Review on Protocols of Virtual Private Network
... both tunnel maintenance and tunneled ...each tunnel. To identify the tunnel and a call, there is a Tunnel ID and Call ID in the L2TP control message and the L2TP header for tunneled ...
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Tunnel design and construction process in difficult ground conditions with Analysis of Controlled Deformations (ADECO) approach; a Case Study
... the tunnel excavation operation was based on the results from the exploration and survey ...Sabzkuh tunnel before the tunnel collapse and finally the tunnel collapsed followed by the ...
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Investigation of a Venturi as a pump application to an Antarctic Sublimation system
... Corrections for Wind Tunnel Effects The fact that the testing was conducted in a wind tunnel effects the results measured in the tests, the insertion of the model in the tunnel cause the[r] ...
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Non linear seismic performance of smart tunnel
... the tunnel using SAP 2000 program, data from SMART Tunnel such as detailed drawing and soil investigation report have been ...on tunnel lining, tunnel shape and other control data have to be ...
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Twin-tunnelling-induced changes to clay stiffnesses
... As previously stated, the laboratory tests described by Divall & Goodey (2015) remove a precise amount of the supporting fluid which simulated tunnelling-induced ground movements. This action resulted in a change in ...
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A Review on Run-Time Reconfigurations and Code Update Mechanisms in Wireless Sensor Networks
... In[20], the RUNES a component-based approach to network embedded system. The RUNES is proposed for a tunnel fire scenario. where the tunnel is instrumented with sensor nodes that repor[r] ...
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3D Rapid Modeling and Key Technology Analysis of Mountain Tunnel
... years, tunnel excavation is becoming more and more common. Because the tunnel will be faced with various problems in the excavation process, at the same time, the country pays more and more attention to the ...
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