Tunnel self -propelled lock foot stock fixing device

• Main Authors: LAI JINXING, YANG SHAOZHAN, ZAN WENBO, CAO XIAOYONG, FENG ZHIHUA
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2017
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model discloses a tunnel self -propelled lock foot stock fixing device, two the self -propelled lock foot stocks (1) of steelframe (5) both sides are set up including the symmetry to and annular hoop muscle (2) of suit on two self -propelled lock foot stocks (1), wherein, threaded connection is upward gone back to every self -propelled lock foot stock (1) has one nut (3), is used for annular hoop muscle (2) prestress application, and annular hoop muscle (2) outside contacts and welds on steelframe (5) with steelframe (5). The utility model discloses simple structure, the construction of being convenient for to self -propelled lock foot stock has effectively been solved because the wall is thin, top layer threaded that cause and steelframe welded fastening difficulty problem, the vertical and lateral displacement of operative constraint steelframe. 本实用新型公开了种隧道自进式锁脚锚杆固定装置，包括对称设置钢架(5)两侧的两个自进式锁脚锚杆(1)，以及套装在两个自进式锁脚锚杆(1)上的环形箍筋(2)，其中，每个自进式锁脚锚杆(1)上还螺纹连接有个螺母(3)，用于对环形箍筋(2)施加预应力，环形箍筋(2)外侧与钢架(5)相接触并焊接在钢架(5)上。本