Damping type high-side slope prestress anchor cable and construction method thereof

Abstract

The invention relates to a damping type high-side slope prestress anchor cable and a construction method thereof. The damping type high-side slope prestress anchor cable comprises a prestress anchor cable, a damping device and an anchor sealing protection layer, wherein the damping device comprises an arch steel plate, a steel base plate and an anchor head; the sealing anchor protection layer comprises a box type steel plate and a concrete protection layer; after the construction of the anchor cable is completed, the steel base plate is placed on the concrete surface layer, the arch steel plate acts on the steel base plate, so that the anchor cable penetrates through the hole position of the steel base plate and the hole position of the arch steel plate; and the prestress is applied to theanchor cable and is locked on the arch steel plate, the box type steel plate is welded on the steel base plate, and a concrete protection layer is poured on the outer surface of the box type steel plate to provide a protection effect. According to the anchor cable and the method, the arch steel plate serves as a force transmission component, vibration isolation and shock absorption and energy dissipation effects are achieved, so that the brittle failures of the support structure, such as the fracture of the anchor cable or cracking of the anchor head and the like under the earthquake action,can be prevented; damages to the support structure caused by the earthquake are reduced; the anchor cable and the method can be widely applied to side slope support in regions where earthquakes are common.

Description

Technical field [0001] The invention belongs to the field of geotechnical engineering, and particularly relates to a shock-absorbing type high-slope prestressed anchor cable and a construction method thereof. Background technique [0002] The construction of high-grade highways, railways and urban construction all need to support the slope. my country is an area with high earthquake occurrence and complex geological conditions. Many roads and railways inevitably pass through high-intensity seismic zones. Under the action of earthquakes, a large number of geological disasters such as collapses and landslides often occur in mountains. Even with support. Under the action of earthquake, pre-stressed anchor cable support is prone to brittle failure such as anchor cable fracture or anchor head collapse, causing serious consequences. Therefore, how to avoid the brittle failure of the supporting structure under the action of an earthquake and reduce the damage caused by the earthquake...

AI Technical Summary

Problems solved by technology

To solve the problem of damage of prestressed anchor cable support structure under earthquake

Images