Anchor head structure placed in concrete panel of anchor retaining wall and its construction method

Abstract

The invention discloses an anchor head structure arranged in a concrete slab for an anchor retaining wall and a construction method for the anchor head structure. The anchor head structure comprises a steel strand, an anchorage, a steel backing plate and a trapezoidal backing pier, wherein the trapezoidal backing pier is arranged in a trapezoidal pit slot of a slope body; one end of the steel strand is arranged in a hole of the slope body; the other end of the steel strand penetrates through the center of the trapezoidal backing pier and extends outside; a lapping steel bar reserved by the outer end of the trapezoidal backing pier is connected with steel mesh reinforcements which are arranged on the outer side of the trapezoidal backing pier and are used for pouring the concrete slab to form a whole supporting structure; the steel backing plate is fixed to the outer side of the trapezoidal backing pier by bolts; and the anchorage which is matched with the steel strand to carry out locking is installed on the outer side of the steel backing plate and is arranged in the concrete slab. According to the anchor head structure arranged in the concrete slab for the anchor retaining wall and the construction method for the anchor head structure, the style of the anchor head structure can overcome the disadvantage of the conventional supporting manner of low durability; in addition, with internal arrangement of the anchor head, erosion on the anchor head structure caused by rain wash can be reduced, unnecessary dangers caused by climbing of a pedestrian is prevented, and the safety of a side slope is improved to a certain degree.

Description

technical field [0001] The invention relates to the field of geotechnical anchoring engineering, in particular to an anchor head structure placed in a concrete panel of an anchor retaining wall and a construction method thereof. Background technique [0002] At present, in order to ensure the safe operation of the geotechnical anchoring project, a three-level support structure is designed on the slope. The first level adopts the form of anchor retaining wall, and the second and third levels adopt the form of buttress retaining wall . Anchor retaining wall refers to a retaining wall built using anchor technology, which is composed of reinforced concrete wall and anchor rods, and relies on the horizontal tension of the anchor rods anchored in the rock formation to withstand the lateral pressure of the soil. Since the commonly used anchor heads are mostly in the exposed form, after being washed by rainwater, the weathering is serious and the safety is reduced. Contents of th...

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Problems solved by technology

[0003] In view of the above problems, the present invention researches and designs an anchor head structure and its construction method placed in the concrete panel of the anchor retaining wall, in order to solve the problem that the existing commonly used anchor heads are mostly exposed forms, which are washed by rainwater and weathered. Serious, reduced security disadvantage

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