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7510025 |
Boring machine
A micro tunnelling machine has a tunnelling head with a boring bit which is forced in a horizontal direction by a hydraulic thruster. The direction of the head is laser guided. The beam strikes a...
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6772134 |
Control means for a horizontal boring tool
Control apparatus for a horizontal boring tool is described which drives a boring lance via boring rods. The tool includes an input interface for receiving actual values of controlled variables of...
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5813482 |
Earth boring system and apparatus
An earth boring system is disclosed for guiding and steering a string of pipe casings to form an underground cased bore. The string of pipe casings are guided by a boring end assembly including a...
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5529437 |
Guidance system and method for keeping a tunnel boring machine continuously on a plan line
A guidance system and method for keeping a tunnel boring, machine continuously on a plan line. The guidance system requires no machine operator calculations and provides the boring machine operator...
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5501548 |
Method for controlling the direction of a shield tunneling machine and an apparatus therefor
When a shield tunneling machine is deviated from the scheduled line while being propelled, the deviation of the shield tunneling machine from the scheduled line is detected and according to the...
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5478170 |
Controlling apparatus for excavator
An object of this invention is to improve precision in the operation, operating efficiency, and reliability of an excavator. A soil condition at a place where an excavator (1) is advanced is...
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5470132 |
Tunnelling head and method
A micro tunnelling head and earth boring method is illustrated which includes utilizing a cutting head (G) spaced forwardly of a cylindrical articulated housing (A) having a transverse bulkhead (B)...
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5330292 |
System and method for transmitting and calculating data in shield machine
The present invention discloses a system and a method for transmitting data in a shield machine and for calculating the filling amount of a void by detecting the distance to the natural ground. The...
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5312163 |
System for aiding operation of excavating type underground advancing machine
A system for supporting the drive of an excavating type underground advancing machine is provided to lighten the operator's burden so that an unskilled operator can perform operation comparable to...
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5296915 |
Method and apparatus for controlling direction of excavating machine
There is disclosed a method and an apparatus for easily controlling the advancing direction of an excavating machine without causing the excavating machine to largely trace in a zigzag way. The...
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5240350 |
Apparatus for detecting position of underground excavator and magnetic field producing cable
Magnetic field producers are disposed either at the leading portion of an underground excavator or at a reference position in front of the underground excavator. The magnetic field producers can be...
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5236284 |
Drilling apparatus and method for its control
A drilling apparatus and a method for its control maintains the alignment of a drill head while driving a tunnel. The control is achieved by manipulating the center of gravity of a drill bit unit...
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5186579 |
Apparatus for controlling direction of underground excavator
According to the present invention, there is disclosed an apparatus for controlling the direction of displacement of an underground excavator including a turnable jack to perform excavating...
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5135326 |
Articulated shield tunneling machine
An articulated shield tunneling machine suitable for excavation along a curvature with an articulated shield having front and rear shield sections. In contrast to the conventional apparatus which...
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5123708 |
Shield tunnelling machine
A shield tunnelling machine is provided. Such shield tunnelling machines include a tubular shield body; an excavating cutter assembly disposed on a front end of the body; a partition wall for...
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5061120 |
Direction correcting device for shield tunnelling machine
A direction correcting device for a shield tunnelling machine having a shield body provided with a head portion and a tail portion following the head portion corrects the direction of the head...
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5017045 |
Method and apparatus for controlling attitude of shield excavator
Directional control of a shield excavator is automatically carried out merely by inputting a direction of rotational moment to which the excavator is directed and a magnitude of the moment.
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4904115 |
Method and device for controlling the trajectory of a shield-type tunnelling machine
Method of controlling the trajectory of a shield-type tunnelling machine equipped with displacement control hydraulic rams (3), characterized in that, these rams being divided into at least three...
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4898498 |
Thrust transmitting device
A device for transmitting a thrust from one of a pair of adjacent pipes so as to propel the other comprises a pair of annular members adapted to be slidable relatively to each other along their...
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4830535 |
Knife shield driving device and method for the excavating and/or final supporting of galleries or the like
The knife-shield driving device consists of drive knives (10, 12, 14, 16, 18) which can be acted on via a pushing device and are guided with respect to each other on their longitudinal sides. The...
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4818026 |
Shield type tunneling apparatus
A shield type tunneling apparatus comprises: a shield body having in its front portion a cutter-head compartment for digging a tunnel through bedrock, the cutter-head compartment being rotatably...
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4655493 |
Shield tunneling machine
A shield tunneling machine comprises a shield body provided with a tubular head portion and a tubular tail portion disposed behind the head portion. The head portion and tail portion are...
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4630967 |
Arrangement for underground advance driving of pipe trains composed of individual pipe lengths
The invention refers to an arrangement for underground driving of pipe trains composed of individual pipe lengths of non-man-sized diameters. The arrangement works with a pressing unit driving the...
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4571122 |
Pipe laying apparatus
A pipe laying apparatus including an excavator propulsion unit located in a starting pit. The excavator includes an excavator body having a first axis, an excavating tool having a second axis and...
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4508390 |
Machine for making underground galleries
The invention concerns an improved machine for making underground galleries. This machine comprises a shield consisting of two mutually movable parts, a forward knife casing 1 supporting on its...
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4474494 |
Tunnel drive shield
A tunnel drive shield has a front shield and a rear shield. The front shield is a knife shield, and the rear shield has a hood and a plurality of elongate members. The hood is connected to the...
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4436448 |
Excavating machine for tunnels and galleries
A tunnel excavating machine for generating tunnels and galleries in subterranean structures, comprises in addition to the excavating head, a shield which travels with the head and advances along...
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4432667 |
Insulation of tunnel linings
A tunnel or shaft lining is installed nondisruptively in a medium such as soil by longitudinally advancing an assembly (10) of tunnel lining sections (12-1 to 12-8) arranged in end-to-end...
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4432665 |
Tunnel driving apparatus
Apparatus for use in driving tunnels or the like comprises a front drive shield composed, for example, of elongate cutter knives supported for longitudinal displacement on a frame. In order to...
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4420188 |
Double shield tunnel boring machine
Front and rear shields are telescopically joined together. The front shield carries a power driven rotary cutterhead means. Thrust rams are provided between the two shields for pushing the forward...
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4311411 |
Pipe jacking apparatus
A pipe jacking apparatus comprises a shield type tunneling machine equipped with direction adjusting jacks, a tubular body joined to the rear of the shield type tunneling machine, and a thrust jack...
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4273468 |
Tunnelling shields and like moveable apparatus
Corrections to be applied to the motion of a tunnelling shield to maintain or restore motion of the shield along a predetermined path are determined by directing a beam of collimated light in a...
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4221503 |
Drilling method and apparatus for large diameter pipe
A method and apparatus is disclosed for installing a large diameter pipe--in the range of 30 inches diameter--for spanning an obstacle, such as a river, along an invert arcuate underground path. An...
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4122683 |
Tunnel drive shield
A tunnel drive shield is provided with a plurality of bracing units spaced around its periphery. The bracing units are expansible against the surrounding tunnel wall to control the direction of...
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3961825 |
Tunnelling machine
An apparatus for tunnelling through soil, of the type in which a conical cutting head is rotatably mounted coaxially on a cylindrical housing and a toothed cutter bar is mounted radially on the...
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3926005 |
Tunnel driving apparatus
An advanceable shield for a tunnel driving apparatus which is composed of a series of elongate members arranged side-by-side and supported on relatively movable frames to define an internal...
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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...
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3823566 |
EARTH-SUPPORTING APPARATUS AND METHOD
The apparatus comprises an open, circular frame, which is resiliently expansible and contractible, arranged for towing in accompaniment with a tunneler (or the like). Hydraulic cylinders coupled...
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3778107 |
REMOTE-CONTROLLED BORING MACHINE FOR BORING HORIZONTAL TUNNELS AND METHOD
A remote-controlled tunnel boring machine for drilling a substantially horizontal tunnel in a formation includes a rotary drilling head at the heading of the tunnel, and a rotary drill pipe coupled...
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3763657 |
MEANS FOR ELIMINATING ROLL OF TUNNELING SHIELD
A tunnel shield is pushed through the ground by hydraulic rams, but has a tendency to rotate and, unless corrected, the forward support for the spoil conveyor and other equipment gets out of proper...
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3762174 |
PROTECTIVE INCHING SHIELD FOR PIPE-LAYING
The forward end of a large pipe being laid in a trench opens into an open-topped casing. A fluid pressure jack received within the forward portion of the pipe being laid reacts between the forward...
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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...
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3484136 |
ALIGNMENT METHOD AND APPARATUS FOR MOBILE STRUCTURE
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3427813 |
SHIELD TUNNELING APPARATUS
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3382002 |
Rotary cutter wheel tunneling machine
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3379024 |
Machine for constructing lined ducts through rock
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3373572 |
Method of driving tunnels
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3350889 |
Apparatus for driving and lining tunnels in unstable soil
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3307876 |
Tunnelling machine having cylindrical rotor and central conveyor
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3301598 |
Tunnel boring machine having rotation control responsive to advance pressure
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