PROBLEM TO BE SOLVED: To mitigate the concentration of stress applied by a shield jack to a joint part between tunnels of different kinds when the tunnels of different kinds are joined together.ISHIDA MUNEHIRO石田 宗弘MIYAKE MASATO三宅 正人...
Cavitation plates are an excellent choice for boats with tunnel hulls, particularly those with fully enclosed tunnels. There are threetypes of tunnel hull boats: Full Tunnel:This boat has a tunnel that stretches from under the centre console to the transom through the integrated keel. When the b...
the soil mass is unstable in the top of the face except for the instability in the lower part of the soft clay face; on the contrary, the lower half part of the face is instable for all kinds of soil mass when the effective stress distribution is in trapezoid with a big top and smal...
They include birds, bears and ant eaters of various kinds. In some cases other ants are their worst enemies, as man’s enemy is man. In some parts of the world, red ants march in large armies to attack the homes of black ants. Some of them succeed in getting inside of the tunnels ...
aThe results of such studies in pilot or exploratory tunnels have been used to select the best location, to design the tunnel section and the steel supports. Two examples of using rock mechanics in tunnel design are the Straight Creek highway tunnel in Colorado and the Berkeley Hills tunnel ...
The propagation environment of electromagnetic waves in mine tunnels is confined areas. The mine tunnel is regard as wave-guide which contains kinds of un-beneficial medium, the field formulas of different polarization waves were presented based on Marcatili method, and field prediction of horizontal...
two four-kilometre road tunnels are being built below the central area of the city , one for traffic to the north and the other for traffic to the south .The two tunnels are about 20 metres below the surface and are 12 metres wide , providing for two lanes of traffic in each direction...
LiMn2O4 Since HMnO(Na) and HMnO(K) had [2 2] tunnels of edge-shared [MnO6] octahedra, the high selectivities of K+ and Rb+ on these samples were used to explain that the sizes of the [2 2] tunnels were suitable for filling ions of about 1.4 in radius in a stable configuration...
Disturbance characteristics and plastic zone distribution law of soil around tunnels in shield tunnel construction To study the plastic zone distribution law in shield tunnel construction, a series of triaxial shear tests were performed under different stress paths in a laboratory. In these tests, ...
The winding cobblestone streets are littered with tunnels and stair passages that connect the upper and lower towns. Many religious constructions that were built in the city in the Middle Ages remain well-preserved till today. One of the representatives is the Alexander Nevsky Cathedral; The Alexand...