Energy dissipation and seismic mitigation type landslide pile-anchor supporting system suitable for strong earthquake area

A technology for earthquake zones and pile anchors, applied in sheet pile walls, construction, excavation, etc., can solve problems such as anchor cable breaking, backing plate collapse, anchor head failure, etc., to reduce stress concentration, prevent failure, and improve stress. The effect of the force state

CN112144549AActive Publication Date: 2020-12-29TONGJI UNIV
5 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-12-29

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to an energy dissipation and seismic mitigation type landslide pile-anchor supporting system suitable for a strong earthquake area. The energy dissipation and seismic mitigationtype landslide pile-anchor supporting system suitable for the strong earthquake area comprises an anchor cable anti-slide pile; the anchor cable anti-slide pile is composed of an anti-slide pile body,an anchor cable free section and an anchor cable anchoring section; and the anti-slide piles are anchored in a stable rock-soil body; the energy dissipation and seismic mitigation type landslide pile-anchor supporting system suitable for the strong earthquake area further comprises an energy dissipation and seismic mitigation device and a seismic mitigation material layer; the anchor cable free section and the pile top of the anti-slide pile are connected together through an energy dissipation and seismic mitigation device; the seismic mitigation material layer is arranged between the anti-slide pile and a slide body, and the anchor cable anchoring section and the deep stable rock-soil body are bonded into a whole through a drill hole. Compared with the prior art, the energy dissipation and seismic mitigation type landslide pile-anchor supporting system suitable for the strong earthquake area has the advantages that under the earthquake action, through reciprocating deformation of a high-strength compression spring and high-strength U-shaped steel, the energy of earthquake motion is consumed, the allowable deformation of the anchor cable free section is improved, the stress concentration of the anchor head part can be effectively reduced, the anchor head is prevented from losing efficacy, and the rock-soil body and the anchor cable are allowed to deform greatly under the earthquake load.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of slope anti-seismic reinforcement and landslide prevention, in particular to an energy-dissipating and shock-absorbing landslide pile-anchor support system suitable for strong earthquake areas. Background technique

[0002] my country is a mountainous country with complex geological conditions. In high-intensity areas, earthquakes are an important factor that induces slope geological hazards such as landslides. Geological disasters triggered by earthquakes often have the characteristics of strong suddenness, wide range of disasters, and difficult management.

[0003] Slope support system is the main measure to prevent geological disasters such as slope reinforcement and landslides. As a new type of landslide prevention and slope reinforcement measures, the pile-anchor support structure has been used in large and extra-large landslides at home and abroad in recent years due to its safety, reliability, low...

Examples

Embodiment

[0027] Such as figure 1 As shown, the present application proposes a kind of energy-dissipating and shock-absorbing landslide pile-anchor support system suitable for strong earthquake areas, including anchor cable anti-sliding piles, energy-dissipating shock-absorbing devices 14 at the ends of anchor cables 1 and shock-absorbing material layers 19. Among them, the anchor cable anti-slide pile is composed of three parts: the anti-slide pile 18, the anchor cable free section 12 and the anchor cable anchor section 21: the anti-slide pile 18 is anchored in the stable rock and soil; the anchor cable free section 20 and the anti-slide pile 18 The tops of the piles are connected together through the energy-dissipating shock-absorbing device 14; the anchoring section 21 of the anchor cable is bonded together with the deep stable rock and soil mass through the borehole. The cushioning material layer 19 is arranged between the anti-slide pile 18 and the sliding body, and the cushioning...