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Protective device for blasting construction vibration of underpass tunnel

A protection device and tunnel technology, applied in blasting, tunnels, roof beams supporting the roof of mines, etc., can solve problems such as tunnel collapse, influence on the stability of soil or rock mass around the tunnel, hidden safety hazards, etc., and achieve enhanced stability. , the effect of protecting stability and improving security

Pending Publication Date: 2020-03-27
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, during the construction of the underpass tunnel, it is necessary to blast the underpass tunnel. During the blasting process, large vibrations will be generated, which will affect the stability of the soil or rock mass around the tunnel and easily cause the tunnel to collapse. security risks

Method used

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  • Protective device for blasting construction vibration of underpass tunnel
  • Protective device for blasting construction vibration of underpass tunnel
  • Protective device for blasting construction vibration of underpass tunnel

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "another side", "front", "rear", "middle part", "inner", " The orientation or positional relationship indicated by "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implyi...

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Abstract

The invention relates to a protective device for blasting construction vibration of a underpass tunnel. The protective device comprises a support fixing frame, an arc-shaped frame, a top protective plate, a side plate and a fixing seat, wherein the arc-shaped frame is arranged on the support fixing frame, the top protective plate is connected with the arc-shaped frame, the side plate is arranged outside the support fixing frame, the fixing seat is connected with the bottom of the support fixing frame, the side plate comprises a first baffle, a second baffle, a first spring column, a first damping spring and a connecting plate, the first baffle and the second baffle are arranged at intervals, the first spring column is arranged between the first baffle and the second baffle, the first damping spring is sleeved outside the first spring column, and the connecting plate is respectively connected with the first baffle and the second baffle; the fixing seat comprises a fixing seat main body,a spring fixing seat, a second spring column and a second damping spring, the spring fixing seat is arranged in the fixing seat main body, the second spring column is arranged on the spring fixing seat, and the second damping spring is sleeved outside the second spring column. The protective device for the blasting construction vibration of the underpass tunnel can improve the safety of the blasting construction of the underpass tunnel.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a protection device for vibration during blasting construction of an underpass tunnel. Background technique [0002] Tunnels can generally be divided into three categories: mountain tunnels, underwater tunnels and urban tunnels. Tunnels that pass under mountains or hills to shorten distances and avoid large ramps are called mountain tunnels; tunnels that pass under rivers or seabeds to cross rivers or straits are called underwater tunnels; to meet the needs of railways passing through large cities Tunnels that pass under the city are called urban tunnels. Generally, during the construction of the underpass tunnel, it is necessary to blast the underpass tunnel. During the blasting process, large vibrations will be generated, which will affect the stability of the soil or rock mass around the tunnel and easily cause the tunnel to collapse. security risks. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21D15/00E21D15/55E21D17/00F42D3/04F42D5/045
CPCE21D9/006E21D15/00E21D15/55E21D17/00F42D3/04F42D5/045
Inventor 周仕仁张玉杰叶剑波李小鹏牛国庆张霞谢聪邓常雄马志平
Owner SHANGHAI BAOYE GRP CORP
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