A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-service wall protecting device and wall protecting method for cast-in-situ bored pile
The invention relates to a self-service wall protecting device and method for a cast-in-situ bored pile, the self-service wall protecting device comprises a vertically-arranged hollow drill rod, the bottom end of the drill rod is connected with a drill bit, the drill bit is internally provided with a plurality of mud spraying pipes, the mud spraying pipes are circumferentially arranged around the axis of the drill bit, one end of each mud spraying pipe communicates with the outer side wall of the circumference of the drill bit, and the other end of each mud spraying pipe communicates with the outer side wall of the circumference of the drill bit. The other end extends into the drill rod. A mud pump is arranged on the ground, the outlet end of the mud pump is communicated with a mud conveying hose, the end, away from the mud pump, of the mud conveying hose extends into the drill rod from the top of the drill rod, and the mud conveying hose and the mud spraying pipe are communicated and rotationally connected. The method has the advantage that the collapse possibility of the hole during drilling is reduced.
本申请涉及一种钻孔灌注桩的自助护壁装置及护壁方法，其包括竖向设置且内部中空的钻杆，所述钻杆的底端连接有钻头，所述钻头内设有若干个喷泥管，若干个喷泥管绕钻头的轴线周向设置，所述喷泥管的一端与钻头的圆周外侧壁相通，另一端延伸至钻杆内，地面上设置有抽泥泵，所述抽泥泵的出口端连通有输泥软管，所述输泥软管远离抽泥泵的一端从钻杆的顶部延伸至钻杆内，所述输泥软管和喷泥管相通且转动连接。本申请具有减小孔洞在钻孔时发生坍塌可能性的优点。
Self-service wall protecting device and wall protecting method for cast-in-situ bored pile
The invention relates to a self-service wall protecting device and method for a cast-in-situ bored pile, the self-service wall protecting device comprises a vertically-arranged hollow drill rod, the bottom end of the drill rod is connected with a drill bit, the drill bit is internally provided with a plurality of mud spraying pipes, the mud spraying pipes are circumferentially arranged around the axis of the drill bit, one end of each mud spraying pipe communicates with the outer side wall of the circumference of the drill bit, and the other end of each mud spraying pipe communicates with the outer side wall of the circumference of the drill bit. The other end extends into the drill rod. A mud pump is arranged on the ground, the outlet end of the mud pump is communicated with a mud conveying hose, the end, away from the mud pump, of the mud conveying hose extends into the drill rod from the top of the drill rod, and the mud conveying hose and the mud spraying pipe are communicated and rotationally connected. The method has the advantage that the collapse possibility of the hole during drilling is reduced.
本申请涉及一种钻孔灌注桩的自助护壁装置及护壁方法，其包括竖向设置且内部中空的钻杆，所述钻杆的底端连接有钻头，所述钻头内设有若干个喷泥管，若干个喷泥管绕钻头的轴线周向设置，所述喷泥管的一端与钻头的圆周外侧壁相通，另一端延伸至钻杆内，地面上设置有抽泥泵，所述抽泥泵的出口端连通有输泥软管，所述输泥软管远离抽泥泵的一端从钻杆的顶部延伸至钻杆内，所述输泥软管和喷泥管相通且转动连接。本申请具有减小孔洞在钻孔时发生坍塌可能性的优点。
Self-service wall protecting device and wall protecting method for cast-in-situ bored pile
钻孔灌注桩的自助护壁装置及护壁方法
CHEN JIADONG (author) / WU LIANG (author) / WANG XIAOJIAN (author)
2021-05-07
Patent
Electronic Resource
Chinese
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