Protection of Harbour Area Treatment Scheme Stage I Sewage
... to DSD for sewage treatment plants. Tunnels constructed between these shafts are generally deep with at least 30 metres of rock cover. Most of the construction works on the ground surface will not have any significant effect on sewage tunnels and no restrictions on these works will be necessary. ...
... to DSD for sewage treatment plants. Tunnels constructed between these shafts are generally deep with at least 30 metres of rock cover. Most of the construction works on the ground surface will not have any significant effect on sewage tunnels and no restrictions on these works will be necessary. ...
Seismic performance of double-unit tunnel form building
... 1999 Kocaeli Earthquake, the 1999 Duzce Earthquake, the 2004 Bingol Earthquake and the 1964 Alaska Earthquake [3–5]. Thus, tunnel form building provides better seismic performance in addition to their low construction cost as compared to the conventional RC buildings. This in turn makes them as an a ...
... 1999 Kocaeli Earthquake, the 1999 Duzce Earthquake, the 2004 Bingol Earthquake and the 1964 Alaska Earthquake [3–5]. Thus, tunnel form building provides better seismic performance in addition to their low construction cost as compared to the conventional RC buildings. This in turn makes them as an a ...
tunnel–ground interaction analysis: discrete beam–spring vs
... compressive static stresses, thus inducing the occurrence of the tensile stresses in the lining. There are various simplified methods for evaluation of the seismically induced ovaling deformation of circular tunnel tubes, which are developed under the assumption of two-dimensional plane-strain condi ...
... compressive static stresses, thus inducing the occurrence of the tensile stresses in the lining. There are various simplified methods for evaluation of the seismically induced ovaling deformation of circular tunnel tubes, which are developed under the assumption of two-dimensional plane-strain condi ...
Design and construction of NATM underground station tunnel by
... on the application of NATM tunnelling, in two discrete stages (top heading and bench) and on the systematic use of grouted forepoling umbrellas. Special problems encountered during the design refer to the close proximity of the station tunnel to the adjacent building pit and the auxiliary galleries ...
... on the application of NATM tunnelling, in two discrete stages (top heading and bench) and on the systematic use of grouted forepoling umbrellas. Special problems encountered during the design refer to the close proximity of the station tunnel to the adjacent building pit and the auxiliary galleries ...
Poster Board
... At this time, the underground tunnel identified in the Mission Bay alignment is not anticipated to accommodate the T/3rd line underground. As the project progresses, a “double-decker tunnel” concept could be analyzed. Can the DTX Baseline alignment be added to Pennsylvania Ave Tunnel; or can the Pen ...
... At this time, the underground tunnel identified in the Mission Bay alignment is not anticipated to accommodate the T/3rd line underground. As the project progresses, a “double-decker tunnel” concept could be analyzed. Can the DTX Baseline alignment be added to Pennsylvania Ave Tunnel; or can the Pen ...
TUNNELS
... This method involves the use of shield machine to drive the tunnels below the ground. After completion of a work shaft, the shield machine is lowered into the shaft and assembled there before excavation and construction of the tunnels using precast concrete lining segments of about 1.2 meter width. ...
... This method involves the use of shield machine to drive the tunnels below the ground. After completion of a work shaft, the shield machine is lowered into the shaft and assembled there before excavation and construction of the tunnels using precast concrete lining segments of about 1.2 meter width. ...
Tunnel engineering
... Underground passage which are constructed without disturbing the ground surface ...
... Underground passage which are constructed without disturbing the ground surface ...
Holland Tunnel
The Holland Tunnel is a highway tunnel under the Hudson River connecting Interstate 78 on the island of Manhattan in New York City, with I-78 and NJ 139 in Jersey City, New Jersey on the mainland of the United States. An integral conduit within the New York Metropolitan Area, the tunnel was originally known as the Hudson River Vehicular Tunnel or the Canal Street Tunnel; it was the first of two automobile tunnels built under the river, the other being the Lincoln Tunnel.