Dangerous-rock and rockfall preventing structure of high-steep side slope bridge connected section

A technology for high and steep slopes, bridges and tunnels, applied to protective equipment, buildings, etc., can solve the problems of low impact capacity of dangerous rockfalls, easy accumulation of dangerous rockfalls, and impractical protection of dangerous rockfalls, etc., to reduce construction costs, Good protection effect and high structural strength

Inactive Publication Date: 2012-11-21
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

Due to the steep terrain, it is impossible to build an extended tunnel open hole to protect against falling rocks. The traditional retaining wall is built, the height of the wall is limited, and the wall’s ability to resist the impact of falling rocks is small, and falling rocks are easy to accumulate

Method used

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  • Dangerous-rock and rockfall preventing structure of high-steep side slope bridge connected section
  • Dangerous-rock and rockfall preventing structure of high-steep side slope bridge connected section

Examples

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] refer to figure 1 , the anti-dangerous rockfall structure of the high and steep slope bridge-tunnel connecting section of the present invention is characterized in that it includes: anti-collision reinforcement piles 30, which are arranged on the steep slope directly above the tunnel opening; anti-collision guide walls 34, which are arranged on the anti-collision reinforcement piles The two sides of 30 are rigidly connected with them, arranged obliquely along the downhill direction; the passive flexible protective net 31 is fixed on the top of the anti-collision reinforcement pile 30 and the anti-collision guide wall 34; the elastic buffer layer 32 is fixed on the anti-collision reinforcement pile 30 and the anti-collision guide wall 34 on the rock-facing surface; the rigid protective net 33 is arranged on the top of the portal of the tunnel 10 a...

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Abstract

A dangerous-rock and rockfall preventing structure of a high-steep side slope bridge connected section aims at solving the problem that dangerous rocks and rockfall at the high-steep side slope bridge connected section affect protection and has the advantages of being high in structural strength, good in economic and protective effects and simple in construction. The dangerous-rock and rockfall preventing structure comprises an anti-collision reinforcing pile (30) arranged on a steep slope surface right above a tunnel portal, anti-collision guiding walls (34) which are arranged on two sides of the anti-collision reinforcing pile (30), are in rigid connection with the anti-collision reinforcing pile (30) and are obliquely arranged along the downhill direction, a passive soft protection net (31) fixedly arranged at the tops of the anti-collision reinforcing pile (30) and the anti-collision guiding walls (34), elastic buffer layers (32) fixedly arranged on the rock facing surfaces of the anti-collision reinforcing pile (30) and the anti-collision guiding walls (34), and a rigid protection net (33) which is arranged at the top of a portal of a tunnel (10) and is obliquely arranged along the downhill direction.

Description

technical field [0001] The invention relates to protective facilities for railways and highways, in particular to a dangerous rockfall protective structure for the bridge-tunnel connecting section with high and steep slopes. Background technique [0002] The mountainous areas of our country, especially the southwestern mountainous areas, have high and steep slopes, and a large number of dangerous rocks and rocks are distributed. Most of the built railways and highways are connected by bridges and tunnels. Dangerous rocks and rocks have a great impact on road operation safety. Due to the steep terrain, it is impossible to build an extended tunnel to protect against falling rocks. The traditional retaining wall is built, the height of the wall is limited, the wall has a small ability to resist the impact of falling rocks, and dangerous rocks are easy to accumulate. Therefore, there is an urgent need for an anti-dangerous rockfall structure for the bridge-tunnel connecting sect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F7/04
Inventor 姚裕春李安洪罗照新庞应刚曾永红徐骏李井元陈丽龚建辉赵青海
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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