Flexible protective shed-tunnel and method for designing same

A technology of flexible protection and flexible protective net, applied in the direction of protective equipment, bridge construction, bridge parts, etc., can solve the problems of limited applicability of the new energy-consuming and shock-absorbing straight-column shed tunnel, and achieve wide engineering applicability and low construction cost Low and high impact resistance

Inactive Publication Date: 2012-06-13
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the new energy-dissipating and shock-absorbing straight-column shed tunnel provided by this document has limited applicability in engineering practice.

Method used

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  • Flexible protective shed-tunnel and method for designing same
  • Flexible protective shed-tunnel and method for designing same
  • Flexible protective shed-tunnel and method for designing same

Examples

Experimental program
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Embodiment 1

[0047] Such as Figure 1 to Figure 8 As shown, a flexible protective shed is built on the bridge deck section at the exit of a tunnel on the Yingxiu-Wenchuan Expressway.

[0048] The bridge deck at the exit of the tunnel is located on the Minjiang River in the Lower Ginkgo Ping Formation, Shapingguan Village, Shapingguan Village, Ginkgo Township, Wenchuan County, Aba Prefecture. The proposed bridge crosses the Minjiang River obliquely and intersects with the Minjiang River valley at a small angle of about 20°. The Minjiang River in the bridge site area is roughly NW-SE, with a longitudinal slope drop of about 0.5-1%. The mountains on both sides of the Minjiang River are high and steep, which is a typical "V"-shaped valley landform of mountainous rivers. The stability of dangerous rocks and dangerous rocks in this area is unstable, and it is easy to form collapses; according to the observation of collapsed rocks in this area during the survey, the dangerous rocks in this area m...

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Abstract

The invention discloses a flexible protective shed-tunnel with an energy-consuming shock absorbers and a method for designing the same to overcome the shortage that energy-consuming shock-absorbing shed-tunnel in the prior art is only applicable to be an upright type. The protective shed-tunnel comprises a shed, supports and energy-consuming shock absorbers, wherein the energy-consuming shock absorbers are used for connecting the shed with the supports, the shed is in an arch structure and comprises a plurality of parallel steel structured main arch rings, and the main arch rings are integrally connected through round support tubes arranged in a mesh form. Double flexible protective nets are mounted outside the main arch rings, the flexible protective nets are annular steel wire nets, and the shed-tunnel is especially applicable to mounting above a bridge road segment. The invention further provides a method for designing the protective shed-tunnel to determine design parameters of wall thicknesses of the energy-consuming shock absorbers. The flexible protective shed-tunnel is simple in structure, easy in construction, effective in protection and especially applicable to being constructed above the bridge road segment. The shed-tunnel design method is reliable in principle, simple in process and applicable to meeting construction field requirements.

Description

technical field [0001] The invention relates to a shed cave and a design method thereof, in particular to a flexible shed cave with an energy-dissipating shock absorber installed on a bridge deck section and a design method thereof, belonging to the field of engineering construction. Background technique [0002] The shed hole is a shed-like building built in the half-cut section to prevent landslides and falling rocks. The construction of sheds and caves is a disaster prevention and control project implemented in mountainous road traffic in order to prevent the road surface from being damaged by landslides and rolling rocks, and to minimize the hazards of landslides and rolling rocks. [0003] In engineering practice, sheds are usually divided into concrete sheds and steel structure sheds according to materials, or sheds are divided into wall-type sheds, steel-frame sheds, straight-column sheds, cantilever sheds according to structure. There are 5 types of shed holes and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01F7/04
Inventor 欧阳朝军何思明
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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