Fiber material friction type drainage anchor rod

Abstract

The invention relates to a fiber material friction type drainage anchor rod, and belongs to the technical field of anchor rod support. The fiber material friction type drainage anchor rod comprises ananchoring end, a water filtering film, water inlet holes, a fiber material anchor rod body, a burst cone, an elastic rubber dense ring, a circular serrated joint, a steel tube expansion anchor rod, ahollow drainage hole and a rigid protective sleeve; the anchoring end and the fiber material anchor rod body form an integrated structure; the anchoring end is of a solid structure; the water inlet holes are uniformly formed in the fiber material anchor rod body and the water filtering film; the water filtering film surrounds the outer side of the hollow drainage hole; the periphery of the burstcone is surrounded with the elastic rubber dense ring; the circular serrated joint is arranged at the tail of the burst cone; the outer sides of the elastic rubber dense ring and the circular serratedjoint are sleeved with the rigid protective sleeve; the anchor rod proposed by the invention has a prominent drainage function, has a preventive effect on gushing water in a tunnel, has a good filtering effect, can also grout an anchor body, fills in positions of water flowing in surrounding rock, and timely controls the deformation of the surrounding rock.

Description

technical field [0001] The invention belongs to the technical field of bolt support, in particular to a fibrous material friction drainage bolt. Background technique [0002] With the development of social economy, especially the rapid expansion of urban population and the rapid expansion of urban functions in my country, the urban disposable land is becoming more and more tense, and urban development promotes the development and utilization of urban underground space. Therefore, 21 The century will be the century of "underground space" development. Wang Mengshu, an academician of the Chinese Academy of Engineering, pointed out that "the 21st century is an era of great development of tunnels and underground spaces, which is of great significance to the research and development of underground spaces." Academician Qian Qihu, academician of the Chinese Academy of Engineering, also pointed out that "cities are developing into three-dimensional space" and "requiring land and spac...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned technical problems, the present invention proposes a fiber material friction drainage anchor, which aims to solve the drainage problem in the water-rich zone of the tunnel and simplify the construction steps; compared with the existing grouting anchor, it can improve its adhesion. Strength and shear strength; Compared with the existing metal anchors, its durability and corrosion resistance are improved. The anchors proposed by the present invention can be quantitatively produced, saving construction costs and time, and facilitating quality inspection and standardization of anchors

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