Reducing and resisting combined lateral retaining device

A technology of support and mounting seat, which is applied in basic structure engineering, construction, excavation, etc.

Pending Publication Date: 2022-06-10
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the construction of the tunnel, it is necessary to provide necessary support for the side walls of the tunnel to prevent the side rocks from pouring into the tunnel and block the tunnel space. Conventional support methods cannot effectively resist the impact of side rocks and lateral pressure

Method used

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  • Reducing and resisting combined lateral retaining device
  • Reducing and resisting combined lateral retaining device
  • Reducing and resisting combined lateral retaining device

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] like Figure 4 , the mesh hole size of the protective net 1 is 5cm×5cm or 10cm×10cm, and the diameter of the metal wire of the protective net 1 is 3mm. The protective net 1 is elastically supported on the installation frame 2 by the spring buffer body 4. When the protective net 1 is impacted, there is a buffer to reduce the damage of the protective net. The structure of the spring buffer body 4 is: including the first mounting seat 41, The second mounting seat 42, the buffer spring 43 and the guide bolt 44 are all provided with a flange surface on the first mounting seat 41 and the second mounting seat 42, and pass between the flange surface of the first mounting seat 41 and the fixed plate 3 Bolt fixed connection, the flange surface of the second mounting seat 42 and the mounting frame 2 are fixedly connected by bolts, the first mounting seat 41 is plugged into the second mounting seat 42, and one end of the buffer spring 43 is in contact with the first mounting seat ...

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PUM

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Abstract

The invention discloses a yielding and resisting combined lateral retaining device which comprises a protective net, a mounting frame, fixing plates and spring buffer bodies, a plurality of fixing plates are arranged at certain intervals, each fixing plate is elastically supported on the mounting frame through a plurality of spring buffer bodies, and the protective net is fixed on the fixing plates. A plurality of spring buffering bodies are adopted, so that the whole protective net floats, when broken stones impact on the protective net, the protective net plays a role in buffering impact force of the broken stones, unloading lateral pressure and impact force generated by the broken stones, achieving a constant-resistance supporting effect, and meanwhile playing a certain supporting role on an underground tunnel top plate.

Description

Technical field: The invention relates to an anti-combination lateral support device. Background technique: During the construction of the tunnel, it is necessary to provide necessary support for the side walls of the tunnel to prevent the side rocks from pouring into the tunnel and block the tunnel space. Conventional support methods cannot effectively resist the impact of the side rocks and lateral pressure. Invention content: In order to solve the problems in the prior art above, the present invention provides an anti-combination lateral support device, which can be actively adjusted according to the influx of side rubble to provide a certain support resistance, which can be used in tunnels It provides a certain supporting force during the construction and excavation period, and can release the lateral pressure of the gravel in the later stage of the influx of gravel, which can effectively prevent the gravel from jumping out, and at the same time play a certain role i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D17/08E01F7/04
CPCE02D17/04E02D17/08E01F7/045E21D19/00
Inventor 高飞潘越峰刘晨康赵章泳孙庆亚项宇航邓树新王庭焱
Owner NANJING UNIV OF SCI & TECH
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