Tunnel concrete grouting pipe pre-burying device

• Main Authors: NIE QIQIANG, XUE WEIWEI, XIE BIN, XU DONGFANG, HONG SHAOPAN, GONG YUANJIANG, XIE ZHIGUO
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model relates to the technical field of tunnel grouting auxiliary equipment, in particular to a tunnel concrete grouting pipe pre-burying device which comprises a pre-burying device body, and the pre-burying device body comprises a guide pipe, a template and a positioning piece, wherein the template and the positioning piece are used for fixing the guide pipe; a positioning hole is formed in the formwork, the positioning piece comprises a connecting rod used for being matched with the inner wall of the tunnel, and a positioning ring is arranged at one end, in the axial direction, of the connecting rod; and the end part of the guide pipe penetrates through the positioning hole and extends into the positioning ring. The positioning device can be used for accurately positioning and protecting the embedded guide pipe in concrete backfill grouting and consolidation grouting, and has the characteristics of simplicity in structure and manufacturing, convenience in installation and use and the like; when