An anchor pier structure with lining embedded prestressed anchor cable and its construction method

Abstract

The invention discloses an anchorage pier structure of a lining built-in pre-stressed anchor cable and a construction method of the anchorage pier structure. The anchorage pier structure comprises a lining with built-in steel bars, an anchorage pier body anchored on surrounding rocks through anchor bars and the pre-stressed anchor cable, wherein the anchorage pier body is arranged between the lining and the surrounding rocks; the pre-stressed anchor cable penetrates through the anchorage pier body and is anchored to the surrounding rocks; at least part of the anchorage pier body is buried in the lining and fixedly connected with the lining to form an integrated structure. The anchorage pier structure can be constructed in advance in the construction process of the anchor cable as needed and can be effectively connected with a lining structure into a whole later.

Description

technical field [0001] The invention relates to an anchor pier structure with a lining embedded prestressed anchor cable and a construction method thereof, which is especially suitable for deformation control of surrounding rocks of underground caverns with poor geological conditions. Background technique [0002] At present, for underground caverns with poor geological conditions, it is often necessary to arrange prestressed anchor cables to control the deformation of the surrounding rock of the cavern on the basis of shotcrete anchor support and concrete lining. construction. [0003] The conventional practice is to use concrete anchor piers or steel anchor piers for prestressed anchor cable anchor piers. The prefabricated (cast-in-place) concrete anchor pier adopts a regular square pyramid (or steel anchor pier), which is directly located on the lining surface. Although this structure can achieve the combined force and effect of the lining structure and the anchor cable ...

AI Technical Summary

Problems solved by technology

Although this solves the problem that the anchor pier takes up space and affects the appearance, the anchor pier is separated from the lining, and the joint force and effect cannot be achieved.

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