Semi -closed anchor section anchor that extends greatly

• Main Authors: GONG LIANGWEI, ZHANG MINGXUE
• Format: Patent
• Language: English
• Published: 23.12.2015
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model discloses a semi -closed anchor section anchor that extends greatly, personally experience sth. Part of the body and establish the extension mechanism in anchor body anchor section including the anchor, the seal cover that extension mechanism includes isolating barrel, expands and overlaps, draws bloated piece and be used for preventing the anchor agent outflow, the isolating barrel cover is outside the inflation cover, the anchor body passes the seal cover in proper order and expands and overlaps the back and draw bloated and be connected, the rock mass warp the anchor body and draws and expands that it expands to draw forms the extrusion to the inflation cover when producing axial tension for the inflation cover radial warp and the inflation, when the large deformation appeared in the rock mass, the anchor body drove to draw and expands along the axial motion of inflation cover and the inner wall of extrusion inflation cover, and the inflation cover radial warp and the inflation for the further motion of inflation cover can be followed to the anchor body, and the deflection of increase is big, can tolerate the country rock large deformation, and the mechanism of extending in addition locates the anchor section, can not reduce underground works's use section, the seal cover can guarantee that adhesion quality reduces anchor agent's waste simultaneously.