Provided is a microtrencher having a utility avoidance system that detects objects buried under the roadway, identifies whether the buried object is a utility and determines whether the buried utility is in the path of the cutting wheel. If the buried utility is in the path of the cutting wheel, an alert is sent to the operator, the vehicle is stopped, and/or the cutting wheel is raised in relation to the roadway. Also provided is a method of using the microtrencher to cut a microtrench in a roadway and to avoid cutting a buried utility in the path of the cutting wheel.

Provided is a microtrench fill comprising concrete, a polymer, and a colorant. Also provided is a method of using the microtrench fill to fill a microtrench in a street or walkway.

A vertical cutter for a machine that can move on wheels includes, a motorized cutter rotatable with respect to its own vertical axis, elements for containing transmission elements which are integral with the cutter, supporting elements for elements for feeding and dispensing wire or cable which can rotate freely about the axis of the cutter. The cutter further includes a roller having a horizontal axis for adjusting a height of the cutter with respect to a walking surface and therefore a depth of a trench generated by it, and for covering the trench with an adjacent soil displaced by the cutter and accumulated in the vicinity of the trench, the wire or cable being accommodated and conveyed by the machine. Also included at the sides of an assembly constituted by containment elements of the transmission elements which are integral with the cutter and by supporting elements for elements for feeding and dispensing a cable, two sliding guides, which rotate freely about the axis of the cutter, for guiding and conveying an additional cable already on the ground.

Provided is a microtrench fill comprising cement, a polymer, and a colorant. Also provided is a method of using the microtrench fill to fill a microtrench in a roadway.

Provided is a microtrencher having a utility avoidance system that detects objects buried under the roadway, identifies whether the buried object is a utility and determines whether the buried utility is in the path of the cutting wheel. If the buried utility is in the path of the cutting wheel, an alert is sent to the operator, the vehicle is stopped, and/or the cutting wheel is raised in relation to the roadway. Also provided is a method of using the microtrencher to cut a microtrench in a roadway and to avoid cutting a buried utility in the path of the cutting wheel.

A device for sorting particulate material includes a main conveyor belt, a separation screen, a graded material conveyor, and an oversize material conveyor. The separation screen is configured to separate the material into a first portion and a second portion with a larger average particle diameter than the first portion. The graded material conveyor is positioned below the separation screen to receive the first portion of the material, and the oversize material conveyor is positioned at an end of the separation screen to receive the second portion of the material.

A method for excavating a ditch and installing an underground pipeline. The method includes excavating a ditch utilizing a predetermined GPS model having grading and alignment requirements for the ditch and the underground pipeline and inserting pipes into the ditch. A laser beam is projected from a laser beam apparatus in association with a first pipe section that utilizes the grading and alignment requirements of the predetermined GPS model to guide excavation and installation of one or more sections of pipes. A remote-controlled vehicle is inserted into the first pipe and is configured to focus the projected laser beam to guide excavation and installation of successive pipe sections. The remote-controlled vehicle is navigated through the pipeline during installation to guide grading of subsequent ditch sections and alignment of additional pipe sections.

Hydro excavation vacuum apparatus that process spoil material onboard the apparatus by separating water from the cut earthen material are disclosed.

A device for sorting particulate material includes a main conveyor belt, a separation screen, a graded material conveyor, and an oversize material conveyor. The separation screen is configured to separate the material into a first portion and a second portion with a larger average particle diameter than the first portion. The graded material conveyor is positioned below the separation screen to receive the first portion of the material, and the oversize material conveyor is positioned at an end of the separation screen to receive the second portion of the material.

An apparatus for backfilling a trench and, more particularly, an apparatus for laying a pipeline bed layer in a trench and for laying a pipeline bedding layer once a pipeline is laid in the trench. The apparatus comprises a multi-deck screen vibrating unit. The upper deck screen comprises finger tines or a grizzly arrangement.