Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of anchor rod structure and anchor rod structure
The invention is suitable for the technical field of rock-soil anchoring, and provides a construction method of an anchor rod structure and the anchor rod structure.The construction method of the anchor rod structure comprises the steps that a guide hole is constructed through a first drill bit; a plurality of expansion holes are formed through a second drill bit, the expansion holes are distributed at intervals in the axial direction of the guide hole, the hole diameter of the expansion holes is larger than that of the guide hole, and the guide hole communicates with the expansion holes to form an anchoring hole; anchor bars are inserted into the guide holes; grouting is conducted in the anchoring hole, grouting is conducted in the guide hole to form an anchoring section, grouting is conducted in the expanding hole to form a diameter expanding part, and the anchoring section and the diameter expanding part are connected to form an anchor rod structure. According to the construction method of the anchor rod structure, the drill bit can drill holes in the soft rock stratum more easily, end bearing resistance is formed when the anchor rod structure resists pulling through the arrangement of the multiple diameter expanding parts, and therefore the anchor rod structure has higher ultimate pulling resistance and better long-term stability.
本申请适用于岩土锚固技术领域，提供了一种锚杆结构的施工方法及锚杆结构，锚杆结构的施工方法包括通过第一钻头施造导引孔；通过第二钻头施造扩大孔，扩大孔的数量为多个，多个扩大孔沿导引孔的轴向间隔分布，扩大孔的孔径大于导引孔的孔径，导引孔与多个扩大孔连通形成锚固孔；向导引孔内插入锚筋；向锚固孔内注浆，导引孔内注浆形成锚固段，扩大孔内注浆形成扩径部，锚固段与扩径部连接形成锚杆结构。锚杆结构的施工方法中，钻头更易于在软岩地层钻孔操作，通过多个扩径部的设置在锚杆结构抗拔时形成端承阻力，从而使得锚杆结构具有更大极限抗拔力和更好的长期稳定性。
Construction method of anchor rod structure and anchor rod structure
The invention is suitable for the technical field of rock-soil anchoring, and provides a construction method of an anchor rod structure and the anchor rod structure.The construction method of the anchor rod structure comprises the steps that a guide hole is constructed through a first drill bit; a plurality of expansion holes are formed through a second drill bit, the expansion holes are distributed at intervals in the axial direction of the guide hole, the hole diameter of the expansion holes is larger than that of the guide hole, and the guide hole communicates with the expansion holes to form an anchoring hole; anchor bars are inserted into the guide holes; grouting is conducted in the anchoring hole, grouting is conducted in the guide hole to form an anchoring section, grouting is conducted in the expanding hole to form a diameter expanding part, and the anchoring section and the diameter expanding part are connected to form an anchor rod structure. According to the construction method of the anchor rod structure, the drill bit can drill holes in the soft rock stratum more easily, end bearing resistance is formed when the anchor rod structure resists pulling through the arrangement of the multiple diameter expanding parts, and therefore the anchor rod structure has higher ultimate pulling resistance and better long-term stability.
本申请适用于岩土锚固技术领域，提供了一种锚杆结构的施工方法及锚杆结构，锚杆结构的施工方法包括通过第一钻头施造导引孔；通过第二钻头施造扩大孔，扩大孔的数量为多个，多个扩大孔沿导引孔的轴向间隔分布，扩大孔的孔径大于导引孔的孔径，导引孔与多个扩大孔连通形成锚固孔；向导引孔内插入锚筋；向锚固孔内注浆，导引孔内注浆形成锚固段，扩大孔内注浆形成扩径部，锚固段与扩径部连接形成锚杆结构。锚杆结构的施工方法中，钻头更易于在软岩地层钻孔操作，通过多个扩径部的设置在锚杆结构抗拔时形成端承阻力，从而使得锚杆结构具有更大极限抗拔力和更好的长期稳定性。
Construction method of anchor rod structure and anchor rod structure
一种锚杆结构的施工方法及锚杆结构
WANG ANFU (Autor:in) / LIAO XIAOPING (Autor:in) / LI YONG (Autor:in) / LIU GUANGYU (Autor:in) / ZHAO MING (Autor:in) / LI YONGQUAN (Autor:in) / LIU JIAMING (Autor:in) / WU ZHOU (Autor:in) / YAN HE (Autor:in) / LYU MINGMIN (Autor:in)
03.02.2023
Patent
Elektronische Ressource
Chinesisch
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