Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grouting type expansion anchor rod and anchoring method
The invention provides a grouting type expansion anchor rod and an anchoring method, and belongs to the field of slope supporting and foundation pit supporting, the grouting type expansion anchor rod comprises a hollow grouting rod body, an external expansion device, a pressure applying rod, an annular sliding block and an extension structure, one end of the hollow grouting rod body is coaxially connected with a slurry blocking plug, and a plurality of slurry discharging holes are formed in the side portion of the hollow grouting rod body; the multiple external expansion devices are installed on the outer side of the hollow grouting rod body and cover the slurry discharging holes correspondingly. The external expansion device comprises steel arches, rotating hinges and inhaul cables, the rotating hinges are connected with the free ends of the adjacent steel arches, one ends of the inhaul cables are welded to the outer side of the hollow grouting rod body, and the other ends of the inhaul cables are connected with the steel arches through the rotating hinges; one end of the pressure rod is connected with the rotating block through the through hole of the slurry plug, and the other end of the pressure rod penetrates through the hollow grouting rod body to be connected with the fixing disc into a whole. The anchor rod is high in anchoring strength, expansion and extension of the anchor rod can be achieved while grouting is conducted, the anchor rod is made to be tightly attached to hole wall surrounding rock, and the anchor rod is prevented from falling off in the using process.
本发明提供了一种注浆型膨胀锚杆及锚固方法，属于边坡支护和基坑支护领域，包括中空注浆杆体、外部膨胀装置、施压杆、环形滑块和伸展结构，中空注浆杆体一端同轴连接堵浆塞，侧部设有多个排浆孔，多个外部膨胀装置安装在中空注浆杆体的外侧且分别覆盖各个排浆孔；外部膨胀装置包括钢拱、转动铰和拉索，转动铰连接相邻钢拱的自由端，拉索一端与中空注浆杆体的外侧焊接，另一端通过转动铰与钢拱连接；施压杆一端通过堵浆塞的贯穿孔与旋转块连结，另一端穿过中空注浆杆体与固定盘连接成一个整体。本发明锚固强度高，可以在注浆的同时实现锚杆的膨胀伸展，使锚杆紧贴孔壁围岩，避免锚杆在使用过程中脱落。
Grouting type expansion anchor rod and anchoring method
The invention provides a grouting type expansion anchor rod and an anchoring method, and belongs to the field of slope supporting and foundation pit supporting, the grouting type expansion anchor rod comprises a hollow grouting rod body, an external expansion device, a pressure applying rod, an annular sliding block and an extension structure, one end of the hollow grouting rod body is coaxially connected with a slurry blocking plug, and a plurality of slurry discharging holes are formed in the side portion of the hollow grouting rod body; the multiple external expansion devices are installed on the outer side of the hollow grouting rod body and cover the slurry discharging holes correspondingly. The external expansion device comprises steel arches, rotating hinges and inhaul cables, the rotating hinges are connected with the free ends of the adjacent steel arches, one ends of the inhaul cables are welded to the outer side of the hollow grouting rod body, and the other ends of the inhaul cables are connected with the steel arches through the rotating hinges; one end of the pressure rod is connected with the rotating block through the through hole of the slurry plug, and the other end of the pressure rod penetrates through the hollow grouting rod body to be connected with the fixing disc into a whole. The anchor rod is high in anchoring strength, expansion and extension of the anchor rod can be achieved while grouting is conducted, the anchor rod is made to be tightly attached to hole wall surrounding rock, and the anchor rod is prevented from falling off in the using process.
本发明提供了一种注浆型膨胀锚杆及锚固方法，属于边坡支护和基坑支护领域，包括中空注浆杆体、外部膨胀装置、施压杆、环形滑块和伸展结构，中空注浆杆体一端同轴连接堵浆塞，侧部设有多个排浆孔，多个外部膨胀装置安装在中空注浆杆体的外侧且分别覆盖各个排浆孔；外部膨胀装置包括钢拱、转动铰和拉索，转动铰连接相邻钢拱的自由端，拉索一端与中空注浆杆体的外侧焊接，另一端通过转动铰与钢拱连接；施压杆一端通过堵浆塞的贯穿孔与旋转块连结，另一端穿过中空注浆杆体与固定盘连接成一个整体。本发明锚固强度高，可以在注浆的同时实现锚杆的膨胀伸展，使锚杆紧贴孔壁围岩，避免锚杆在使用过程中脱落。
Grouting type expansion anchor rod and anchoring method
注浆型膨胀锚杆及锚固方法
WANG YONGZENG (Autor:in) / WANG RUN (Autor:in) / GU CHUANBAO (Autor:in) / FENG DIANZHI (Autor:in) / CAO YANG (Autor:in) / WU ENZE (Autor:in) / DAI JUNJIE (Autor:in)
10.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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