Matches 151 - 200 out of 205 < 1 2 3 4 5 >
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4205949 Slipform apparatus for vertical bores  
A slipform apparatus is described for forming a continuous upright monolithic lining within a preformed upright shaft. The slipform is provided in three independently movable sections that may be...
4187037 Wall supporting arrangement, especially for supporting mine gallery walls  
A wall supporting arrangement, especially for supporting mine gallery walls, comprises a supporting frame for a wall to be supported and including at least two frame elements located in a plane...
4173430 Method of injecting a back filling injection material in a shield forming process  
A novel method of injecting a back filling injection material employed in a shield-forming process is described herein. A screw type injection pump with a hopper connected to its intake port is...
4147453 Method of, and apparatus for, driving and lining tunnels  
Apparatus for driving and lining tunnels utilizes a knife shield for driving a tunnel and shuttering for forming a concrete lining behind the knife shield. The shuttering is constituted by a...
4120165 Methods of and apparatus for driving tunnels  
Apparatus for driving tunnels or the like employs a drive shield known per se, with drive members supported and guided on a frame. Rear extension members are linked to the drive members, preferably...
4118938 Apparatus for and method of driving tunnels  
Apparatus for use in tunnel driving employs a drive shield of known type with elongate drive members arranged side-by-side and supported and guided by a rigid frame. Hydraulic rams are used to...
4072021 Method of driving and forming a tunnel with hydraulic boring machine  
A tunnel driving and forming method with hydraulic boring machine through mixed ground of stable and unstable layers which is simplified in equipments, less in air contamination and noises and high...
4055959 Apparatus for use in mining or tunnelling installations  
Apparatus for use in mining or tunnelling installations comprises a shield for housing excavation machinery, and a floor sill for supporting said machinery. The shield is constituted by a plurality...
4051682 Method for installing ceiling panels in a tunnel  
A method for installing ceiling panels in a tunnel comprises installing a plurality of brackets in the tunnel roof and disposing a horizontal platform at an intermediate height in the tunnel. A...
4043137 Apparatus for and a method of constructing a tunnel  
Apparatus for constructing an underground tunnel employs a drive shield composed of elongate drifting cutters disposed side-by-side in a circular configuration around a support frame. Hydraulic...
4022029 Useful improvements in apparatus for, and in methods of, constructing a tunnel  
A tunnel driving apparatus and method which utilizes a drive shield preferably composed of a series of cutter planks arranged side-by-side around the tunnel axis and supported by a frame. The...
4003211 Methods and apparatus for constructing tunnels  
In a tunnel driving apparatus which employs hydraulic rams for advancing a shield in the direction of tunnel advancement, a thrust ring is used as a support for the rams. Lining sections are...
3990249 Method and an apparatus for producing a draining channel  
A strip of snow is applied to a support surface which is to be drained, and covered with a quick-setting concrete. When the snow melts after setting of the quick-setting concrete, the space between...
3990746 Apparatus for and a method of storing and transporting lining sections in an underground tunnel driving installation  
A tunnel driving installation has an advanceable support shield and cutting means co-operating at the front end of the tunnel and a continuous tunnel lining disposed rearwardly of the support...
3989302 Continuous roof support system for tunnel boring  
The roof of a tunnel being bored by a tunneling machine is continuously supported, using sections of lagging and ring beams. A shield is positioned over the earth boring machine. The shield...
3979919 Tunnel framing for poured concrete  
The present invention relates to improvements in U-shaped tunnel shutterings or framing for poured concrete constituted by two half shells in the form of a right-angled dihedron, of which the edges...
3969906 Tunnelling shields  
A tunnelling shield has a rearward rotatable part having a spiral rearward end to engage a forward end of a spiral tunnel lining. A drive mechanism rotates the rearward shield part as further...
3950956 Driving of tunnels  
An apparatus for driving a tunnel, the apparatus having a knife shield composed of a circular array of elongate knife implements supported by a frame and attachable to a drive frame which can be...
3946125 Method for internally coating ducts with synthetic resin  
A method of and an apparatus for the internal coating of ducts with a synthetic resin, especially long steel pipes or tubes, in which gas-entrained synthetic-resin particles are passed through the...
3919851 Apparatus for the excavation and lining of subterranean tunnels  
A tunnel excavating and lining apparatus comprises a plurality of hollow cylindrical shields arranged in end-to-end coaxial relationship with a cutting and steering shield in a forwardmost...
3916630 Tunneling methods and apparatus  
A tunnel is constructed by driving two parallel side channels and then an arched channel interconnecting the parallel channels, forming a roof lining in the arched channel, and excavating the...
3905645 Tunnelling machines  
A tunnelling machine comprises a cutting head mounted on a cylindrical shield which has a sole plate adjacent its front end and at its lowest part. In use, the machine also comprises a sledge which...
3889480 Process of, and a plant for, constructing tunnels  
A plant for use in tunnel constructions and having a drive shield with a cutting head for driving into a working face to advance the tunnel. A plurality of rams which act upon an abutment member...
3850000 TUNNELLING SHIELDS  
A tunnelling shield has a rearward rotatable part having a spiral rearward end to engage a forward end of a spiral tunnel lining. A drive mechanism rotates the rearward shield part as further...
3818713 DRIVING OF TUNNELS  
An apparatus for driving a tunnel, the apparatus having a knife shield composed of a circular array of elongate knife implements supported by a frame and attachable to a drive frame which can be...
3749352 DEVICE FOR ERECTION OF PRESSED MONOLITHIC LINING IN UNDERWORKINGS  
A collapsible device for the erection of a pressed monolithic lining in underworkings wherein a pressing member, along its perimeter, is made of separate parts linked through hinge joints connected...
3698066 METHOD OF PRODUCING TUNNEL OR LIKE STRUCTURE  
A tunnel section is produced by enclosing an annular ring of expanded metal within an outer covering of plastic material. The expanded metal has inward projections struck out from it which are...
3678694 METHODS AND APPARATUS FOR INSTALLING TUNNEL LINERS  
A tunnel lining apparatus and method for installing tunnel liner segments behind a tunnel boring machine having a trailing tail shield is provided in which tunnel liner segments are delivered on a...
3657897 TUNNELLING SHIELD  
A tunnelling shield mainly consists of a heavy steel tube provided with cutting segments about its front rim and having an annular collar on its outer axial wall near the rim. Pouches of...
3656810 TUNNELING SHIELD  
A tunneling shield for soft loose soils, whose face working space is divided into several decks accommodating the working tools the latter being installed so that they can move not only forward and...
3650116 APPARATUS FOR USE IN SUBTERRANEAN EXCAVATION  
A multisection shield incorporates means for subterranean excavation and for removal of excavated materials, and provides for the installation of planked lining within the shield. The apparatus is...
3640076 TUNNELS OR TUNNELLING  
A method of constructing a lined tunnel comprises the steps of excavating a short length of tunnel of internal diameter greater than the external diameter of the lining, erecting within the said...
3626855 METHOD AND TRACK SECTION FOR LAYING TRACK IN TUNNEL DRIVING  
A track section for laying a trackway during tunnel boring to provide support for equipment to be advanced as the tunnel progresses, which is longitudinally and slidably supported at the forward...
3550344 ADJUSTABLE SUPPORT ASSEMBLY FOR KILN LINING APPARATUS  
3550382 METHOD OF CONSTRUCTION OF TUNNEL LINING  
3487649 APPARATUS FOR USE IN THE CONSTRUCTION OF CONCRETE LINED TUNNELS  
3417538 Kiln liner block supporting structure  
3379024 Machine for constructing lined ducts through rock  
3377105 Protective overhead shield for tunneling machine and method  
3358769 Transporter for well casing interliner or boot  
3350889 Apparatus for driving and lining tunnels in unstable soil  
3298155 Apparatus for lining kilns  
3266257 Shield tunneling method and mechanism  
3247675 Segment erectors for a tunneling machine  
3234743 System of forming tunnels  
3075591 Tunnel boring machines  
3075359 Apparatus for the erection of tunnel linings  
3074139 Method and apparatus for limiting loss of overhead mortar lining in pipe  
2995901 Method of and apparatus for lining tunnels with concrete  
2967401 Apparatus for jacking tunnels  
Matches 151 - 200 out of 205 < 1 2 3 4 5 >