Method and apparatus for cutting linear trenches in concrete

An apparatus for cutting linear trenches in a concrete ground surface, the apparatus comprising:

• a portable frame including at least two ground engaging elongated bars disposed for extending along the concrete ground surface in spaced parallel relation to one another, said bars including a plurality of demarcations and/or slots disposed in spaced relation along lengths thereof, and an elongated track member extending orthogonally relative to said bars, the track member being removably fastened at a proximal end thereof to one of said bars and being removable fastened at a distal end thereof to another of said bars, wherein the track member is selectively movable between a plurality of positions defined by said demarcations and/or slots;
• a tool trolley movably engaged with said track member, wherein said tool trolley is configured for moving in a cutting direction along said track member between said proximal end and said distal end;
• a motor-driven ground-engageable cutting wheel supported by said tool trolley, said cutting wheel having a cutting wheel axis of rotation being substantially orthogonal to said cutting direction;
• a depth adjuster disposed on said tool trolley, the depth adjuster configured to alternately lower and raise the cutting wheel relative to said tool trolley to respectively engage and disengage the cutting wheel from the concrete ground surface;
• and
• the tool trolley being configured to follow contours of the concrete ground surface during said moving, wherein when engaged with the concrete ground surface, the cutting wheel cuts a kerf of substantially uniform depth relative to said contours.