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A platform for research: civil engineering, architecture and urbanism
Tensile type anchoring device suitable for two-section type stepped anchor holes
The invention relates to a tensile type anchoring device suitable for two-section type stepped anchor holes. The tensile type anchoring device comprises a tubular anchor rod body, a grouting pipe arranged in the anchor rod body in a penetrating manner and an anchor head. The anchor rod body comprises an anchoring section and a free section. The anchoring section comprises a first anchoring sectionbody and a second anchoring section body communicating with the first anchoring section body. The anchor head is connected to the end, away from the free section, of the grouting pipe. The second anchoring section body comprises at least two anchoring sub-sections, and anchoring frameworks II are arranged between the adjacent anchoring sub-sections, wherein the anchoring frameworks II are used for transversely expanding when pressed to enable the external diameters to be smaller than the internal diameters of the anchor holes in corresponding positions. Strip-shaped holes II are formed between adjacent frameworks of the anchoring frameworks II. The grouting pipe is correspondingly provided with grout discharge holes opposite to the multiple strip-shaped holes II. Steps are formed on junctures of the outer anchor holes and the inner anchor holes, and compacting parts II move to the positions of the steps in the pressed process. The tensile strength of the structure of an anchor rod canbe improved advantageously, the permeability degree and the combination degree of concrete and a soil layer or a rock layer during grouting is improved, the combination degree with a cured concrete structure can be improved advantageously, and the stability and the tensile strength of the whole are enhanced.
本发明涉及一种适用于两段式阶梯状锚孔的抗拉型锚固装置，包括管状锚杆本体、穿设于锚杆本体内的灌浆管和锚头；锚杆本体包括锚固段和自由段；锚固段包括相连通的第一锚固段和第二锚固段；锚头连接于灌浆管的远离自由段端；第二锚固段包括至少两个锚固分段并相邻锚固分段间设置有用于受压时横向扩张形成外径小于对应处锚孔内径的锚固骨架II；锚固骨架II的各相邻骨架间形成条形孔II；灌浆管对应开设有与多个条形孔II相对的排浆孔；外锚孔与内锚孔结合处形成台阶并在受压时压实件I向台阶处移动；利于增加锚杆自身结构抗拉强度，提高灌浆时混凝土与土层或岩层的渗透度及结合度，利于提高与固化后的混凝土结构结合度，增强其整体的稳定性及抗拉拔强度。
Tensile type anchoring device suitable for two-section type stepped anchor holes
The invention relates to a tensile type anchoring device suitable for two-section type stepped anchor holes. The tensile type anchoring device comprises a tubular anchor rod body, a grouting pipe arranged in the anchor rod body in a penetrating manner and an anchor head. The anchor rod body comprises an anchoring section and a free section. The anchoring section comprises a first anchoring sectionbody and a second anchoring section body communicating with the first anchoring section body. The anchor head is connected to the end, away from the free section, of the grouting pipe. The second anchoring section body comprises at least two anchoring sub-sections, and anchoring frameworks II are arranged between the adjacent anchoring sub-sections, wherein the anchoring frameworks II are used for transversely expanding when pressed to enable the external diameters to be smaller than the internal diameters of the anchor holes in corresponding positions. Strip-shaped holes II are formed between adjacent frameworks of the anchoring frameworks II. The grouting pipe is correspondingly provided with grout discharge holes opposite to the multiple strip-shaped holes II. Steps are formed on junctures of the outer anchor holes and the inner anchor holes, and compacting parts II move to the positions of the steps in the pressed process. The tensile strength of the structure of an anchor rod canbe improved advantageously, the permeability degree and the combination degree of concrete and a soil layer or a rock layer during grouting is improved, the combination degree with a cured concrete structure can be improved advantageously, and the stability and the tensile strength of the whole are enhanced.
本发明涉及一种适用于两段式阶梯状锚孔的抗拉型锚固装置，包括管状锚杆本体、穿设于锚杆本体内的灌浆管和锚头；锚杆本体包括锚固段和自由段；锚固段包括相连通的第一锚固段和第二锚固段；锚头连接于灌浆管的远离自由段端；第二锚固段包括至少两个锚固分段并相邻锚固分段间设置有用于受压时横向扩张形成外径小于对应处锚孔内径的锚固骨架II；锚固骨架II的各相邻骨架间形成条形孔II；灌浆管对应开设有与多个条形孔II相对的排浆孔；外锚孔与内锚孔结合处形成台阶并在受压时压实件I向台阶处移动；利于增加锚杆自身结构抗拉强度，提高灌浆时混凝土与土层或岩层的渗透度及结合度，利于提高与固化后的混凝土结构结合度，增强其整体的稳定性及抗拉拔强度。
Tensile type anchoring device suitable for two-section type stepped anchor holes
适用于两段式阶梯状锚孔的抗拉型锚固装置
XIE YUANGUANG (author) / JIANG HAIFEI (author) / LI JIE (author) / JIANG YANG (author) / GUO ZHONGYING (author)
2020-04-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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