A boring machine for producing a trench in the ground including a chassis that extends in a longitudinal direction, the chassis having a lower end, the machine including a boring device mounted at the lower end of the chassis, the boring device including a first boring member which is rotary about a first axis of rotation, and a second boring member which is rotary about a second axis of rotation, the second axis of rotation and the first axis of rotation extending in a plane perpendicular to the longitudinal direction, wherein the first axis of rotation is inclined with respect to the second axis of rotation.

This disclosure relates to a disk cutter (18) comprising a cutter body, a plurality of tool holders (24) and a plurality of cutting elements (22) mounted to the tool holders. The tool holders and cutting elements are provided in at least one set about the cutter body, each set comprising two or more tool holders and two or more cutting elements arranged in a p re-determined sequence of configurations.

This disclosure relates to a disk cutter (18) comprising a cutter body, a plurality of tool holders (24) and a plurality of cutting elements (22) mounted to the tool holders. The tool holders and cutting elements are provided in at least one set about the cutter body, each set comprising two or more tool holders and two or more cutting elements arranged in a p re-determined sequence of configurations.

Disclosed is a full-hydraulic automatic diaphragm wall cutting-grooving machine, which includes a supporting frame, a cutting device, a cutting driving device and a verticality detection device. The verticality detection device is used to detect the verticality and flatness of the diaphragm wall during the cutting process, the cutting device is used to drive the supporting frame and an equipment arranged on the supporting frame to move and cut, the cutting driving device is used to drive and adjust the cutting device in different directions. The verticality detection device is used to realize the automatic measurement of the verticality of the wall and the bottom surface and the flatness of the wall during the cutting process.

Disclosed is a full-hydraulic automatic diaphragm wall cutting-grooving machine, which includes a supporting frame, a cutting device, a cutting driving device and a verticality detection device. The verticality detection device is used to detect the verticality and flatness of the diaphragm wall during the cutting process, the cutting device is used to drive the supporting frame and an equipment arranged on the supporting frame to move and cut, the cutting driving device is used to drive and adjust the cutting device in different directions. The verticality detection device is used to realize the automatic measurement of the verticality of the wall and the bottom surface and the flatness of the wall during the cutting process.

A rotary ditching attachment for an articulated boom of an excavator type machine includes two rotary excavating heads supported in spaced relation on opposite sides of a central support. The heads rotate about a common axis. The rotary ditching attachment is rotatably coupled to the boom by a rotating tool mount. The rotating tool mount is connectable to the central support such that the central support and attached excavating heads are rotatable about an axis extending through the central support and perpendicular to the common axis of the excavator heads. Excavating assemblies are mounted on outwardly facing and inwardly facing surfaces of rotors forming each excavating heads. Rotating the rotary ditching attachment relative to a direction of movement of the rotary ditching tool relative to the ground increases the width of cut of the excavating heads when used to form or rehabilitate a ditch.

A rotary ditching attachment for an articulated boom of an excavator type machine includes two rotary excavating heads supported in spaced relation on opposite sides of a central support. The heads rotate about a common axis. The rotary ditching attachment is rotatably coupled to the boom by a rotating tool mount. The rotating tool mount is connectable to the central support such that the central support and attached excavating heads are rotatable about an axis extending through the central support and perpendicular to the common axis of the excavator heads. Excavating assemblies are mounted on outwardly facing and inwardly facing surfaces of rotors forming each excavating heads. Rotating the rotary ditching attachment relative to a direction of movement of the rotary ditching tool relative to the ground increases the width of cut of the excavating heads when used to form or rehabilitate a ditch.

A method of securing optical fiber and/or innerduct/microduct 140 within a microtrench 11 by laying the optical fiber and/or innerduct/microduct 140 within a microtrench 11 and inserting a plurality of microtrench plugs 6 into the microtrench 11 above the optical fiber and/or innerduct/microduct 140 to secure the optical fiber and/or innerduct/microduct 140 in the microtrench 11 and reduce bowing of the optical fiber and/or innerduct/microduct 140 up from a bottom of the microtrench 11.

A trench cutting machine for making a cut in a surface includes a frame with at least one rear axle and at least one front axle, and a rotatable circular blade mounted the frame. The front axle is vertically adjustable relative to the frame between a first position where the circular blade is lifted clear of the surface, and a second position where the circular blade is arranged to extend downwards from the frame to cut a predetermined distance into the surface. The frame includes an auxiliary front axle located in front of the axis of rotation of the circular blade. The auxiliary front axe and the rear axle are arranged to support the frame on the surface during a cutting operation and to maintain a selected depth of cut. A shroud assembly and a debris guiding device for such a machine are also included.

A trench cutting machine for making a cut in a surface includes a frame with at least one rear axle and at least one front axle, and a rotatable circular blade mounted the frame. The front axle is vertically adjustable relative to the frame between a first position where the circular blade is lifted clear of the surface, and a second position where the circular blade is arranged to extend downwards from the frame to cut a predetermined distance into the surface. The frame includes an auxiliary front axle located in front of the axis of rotation of the circular blade. The auxiliary front axe and the rear axle are arranged to support the frame on the surface during a cutting operation and to maintain a selected depth of cut. A shroud assembly and a debris guiding device for such a machine are also included.