一种抗拉、对拉注浆锚杆装置制造方法及图纸

本发明专利技术涉及一种抗拉、对拉注浆锚杆装置，即兼具备注浆管和锚杆功能并可以将隧道支护、围岩两者或者小间距隧道支护之间、围岩三者连接成整体的装置，包括锚杆、连接接头、钢绞线三部分。钢绞线环绕、绑扎在隧道初期支护上，钢绞线通过连接接头固定在锚杆上，锚杆和连接接头采用螺纹连接。中空的锚杆注浆后和围岩成为一体，即隧道支护和注浆范围内的围岩形成牢固连接。对于小间距隧道，锚杆打穿夹岩并将两端连接隧道初期支护上，起到对拉效果；对于一般的隧道，锚杆一端和隧道初期支护连接，另一端插入隧道围岩中，增加锚杆抗拉效果。本发明专利技术可以提高隧道结构与围岩的整体性，减少围岩和结构变形。

Tensile and tensile grouting anchor bolt device

The invention relates to a device for pulling grouting anchor, tensile, i.e.simultaneous with grouting pipe and anchor function and can tunnel, surrounding rock or two tunnels with small spacing between supporting and surrounding rock three are connected into a whole device, including joint bolt, steel wire and the three part. The steel strand is fixed on the anchor rod through a connecting joint, and the anchor rod and the connecting joint are screwed connected. After the hollow bolt is grouted, the surrounding rock becomes a whole, that is, the tunnel support and the surrounding rock in the grouting area form a solid connection. For the small distance tunnel, bolt penetrated rock and will be connected to both ends of the tunnel primary support, played on the pull effect; for general tunnel, bolt end and tunnel initial support is connected, the other end is inserted into the tunnel surrounding rock, increase tensile anchor effect. The invention can improve the integrity of the tunnel structure and the surrounding rock, and reduce the deformation of surrounding rock and structure.

【技术实现步骤摘要】

【技术保护点】
１．一种抗拉、对拉注浆锚杆装置，包括锚杆（２）、注浆孔（３）、钢绞线（１０）和连接接头（６），其特征在于：锚杆（２）为杆身空心的管状结构，锚杆（２）的顶部内壁设有第一螺纹（４），尾部内壁设有第二螺纹（１），锚杆（２）上均匀分布有注浆孔（３），位于锚杆（２）端头部位呈锥形（５），连接接头（６）为一螺栓构件，其外侧设有螺纹，连接接头（６）通过该螺纹和锚杆（２）两端连接，连接接头（６）顶部设有锁状锚固柄（７），锚固柄（７）上设有螺栓孔（８）；钢绞线（１０）两头制作成“扣状”，钢绞线（１０）绑扎格栅初期支护后，“扣状”端头插入位于连接接头（６）顶部的锚固孔（８）内，锚固螺栓（９）插入锚固孔（８）内，将...

【技术特征摘要】

【专利技术属性】
技术研发人员：石景山，王长丹，周顺华，
申请(专利权)人：同济大学，
类型：发明
国别省市：31