Framework prestress anchor rod-reinforced supporting structure for gravity type retaining wall and construction method thereof

Abstract

The invention discloses a framework prestress anchor rod-reinforced supporting structure for a gravity type retaining wall and a construction method thereof. In the structure, a prestress anchor rod (3) penetrates through a crossed part of a cross beam (1) and an upright post (2) as well as a gravity type retaining wall (4) and is fixedly embedded inside a reinforced soil body; cement mortar is wrapped on the periphery of an anchor section (7) of the prestress anchor rod (3); a free section (13) of the prestress anchor rod (3) is coated with a layer of corrosion resistant material (14); a plastic casing (15) is sleeved outside the corrosion resistant material (14); and the end part of the prestress anchor rod (3) is anchored at the crossed part of the cross beam (1) and the upright post (2) by using an anchor head (5). The construction method comprises the following specific steps of: carrying out manufacturing and constructing on the prestress anchor rod (3); casting a capping crown beam (8), the upright post (2) and the cross beam (1); locking the anchor head (5) which is connected with the prestress anchor rod (3) in a fastening manner by using an anchor appliance (16); carrying out construction on the prestress anchor rod (3), the cross beam (1) and the the upright post (2) on next work surface according to the previous steps; finishing tensioning and anchoring of the prestress anchor rod (3) on each layer; and casting a foundation pile (9).

Description

technical field [0001] The invention relates to the field of slope support. Background technique [0002] In the past, gravity retaining walls were mostly used as support technologies for roads and building slopes. The method of gravity retaining wall can be made of rubble masonry or plain concrete pouring. This method mainly relies on the self-weight and stiffness of the retaining wall to resist the lateral pressure of the soil behind the wall. [0003] The disadvantages of this support technology are: (1) self-heavy; (2) high rigidity and poor seismic performance; (3) poor overall stability and insufficient anti-overturning capability. Therefore, the overturning and sliding of the retaining wall often occurs, which affects the safety of engineering facilities. At this time, the gravity retaining wall must be reinforced. Contents of the invention [0004] The object of the present invention is to provide a support structure and a construction method for reinforcing a gr...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of this support technology are: (1) self-heavy; (2) high rigidity, poor seismic performance; (3) poor overall stability, insufficient anti-overturning ability

Therefore, the overturning and sliding of the retaining wall often occurs, which affects the safety of engineering facilities. At this time, the gravity retaining wall must be reinforced

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