Underground drill rig and systems and methods of using same

A system comprising:

• a casing pipe having a binder on an exterior surface of the casing pipe that is configured to secure the casing pipe to a bore wall of a first bore in a formation;
• an anchoring nut secured to a proximal end of the casing pipe, wherein the anchoring nut comprises a gripping feature;
• and
• a drill rig having a longitudinal drilling axis, the drill rig comprising:
• a feed frame;
• a first head assembly that is movable along the feed frame, wherein the first head assembly is configured to grip, rotate, and move, along the longitudinal drilling axis, the casing pipe, wherein the first head assembly is further configured to grip, rotate, and move, along the longitudinal drilling axis, a drill rod of a drill string, and wherein the first head assembly and the feed frame are configured to cooperate to form the first bore in the formation and then insert the casing pipe into the first bore;
• and
• an anchoring clamp configured to engage the gripping feature of the anchoring nut, wherein the anchoring clamp comprises a plurality of jaws that are movable toward and away from a central axis to thereby coaxially align the longitudinal drilling axis of the drill rig with a central axis of the casing pipe and anchoring nut, wherein the drill rig is configured to drill a second bore into the formation through the casing pipe while the casing pipe is received in the first bore and while the anchoring clamp is coupled to the anchoring nut so that the second bore has an axis that is aligned with an axis of the first bore.