Quake-proof flexible active protecting net system for slope surface

Abstract

The invention discloses a quake-proof flexible active protecting net system for the slope surface, which comprises an active protecting net, support ropes and steel rope anchor bolts (7). The support ropes are connected with the steel rope anchor bolts (7) through friction energy dissipaters, each steel rope anchor bolt (7) is fixedly connected with one end of the corresponding friction energy dissipater, and one support rope is fixedly connected with the other end of the corresponding friction energy dissipater. In a quake of a slope, impact energy of ruptured rock mass is converted into friction between friction wedges and sliding wedges. By means of the quake-proof flexible active protecting net system, anchor bolt pullout and failure of active protection due to shallow collapse of the ruptured rock slope caused by the seismic shock can be reduced effectively, and the quake-proof flexible active protecting net system is simple in structure, convenient in manufacture and reliable in performance and has the function of friction energy dissipation.

Description

technical field [0001] The invention relates to a flexible protective net system that can be placed on the broken rock slope surface and used for the anti-seismic of the slope surface. The appropriate frictional energy-dissipating damper can be selected according to the seismic intensity and the anti-seismic grade of the protected slope to resist the earthquake. A new type of device for the impact of broken rock mass on the protective net during an earthquake. Background technique [0002] At present, in order to ensure the safety of broken rock slopes, active protective nets are often deployed on the slope surface to protect broken rock slopes from rock mass spalling and shallow collapse caused by weathering or rain. However, the existing active protection forms mainly use metal mesh and steel cable anchors for slope protection. When an earthquake occurs, especially when a strong earthquake occurs, the rock mass and rock blocks on the slope are easy to be projected under th...

AI Technical Summary

Problems solved by technology

However, the existing active protection forms mainly use metal mesh and steel cable anchors for slope protection. When an earthquake occurs, especially when a strong earthquake occurs, the rock mass and rock blocks on the slope are easily ejected under the vibration load. The large impact load generated by the protective net is likely to cause the steel cable anchor to be pulled out under the strong impact force of the projected rock mass, resulting in the failure of the protective system, resulting in the collapse and instability of the shallow layer of the slope. It will bring great safety problems to local road operations

If a damping and anti-seismic device is added to the existing active protection net, it can effectively improve the protection ability of the active protection net in the earthquake zone, which is of great significance to the safety and smoothness of slope protection and roads. There is still no such device

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