CN216892163U

CN216892163U - Highway roadside safety protection and reinforcement system with limited space

Info

Publication number: CN216892163U
Application number: CN202220304805.5U
Authority: CN
Inventors: 王海林; 宁蟠龙; 李晓民; 孙俊
Original assignee: Gansu Province Transportation Planning Survey and Design Institute Co Ltd
Current assignee: Gansu Province Transportation Planning Survey and Design Institute Co Ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-05
Anticipated expiration: 2032-02-14

Abstract

The utility model relates to the field of roadside safety protection, in particular to a roadside safety protection and reinforcement system with limited space, which solves the problems of low strength and poor protection capability of the conventional reinforced guardrail or common concrete guardrail. The system is laid on the road side, the base layer of the road side part is provided with base reinforcing steel bars, the side end of the road is provided with guardrail reinforcing steel bars fixed with the base reinforcing steel bars, steel pipes are fixed at the bottoms of the base reinforcing steel bars, cement concrete is poured into the guardrail reinforcing steel bars to form a protective wall, cement concrete is poured into the base reinforcing steel bars to form a base, and the steel pipes are filled with the cement concrete to form a steel pipe pile. The system strengthens the capability of resisting vehicle impact by pouring the integrated protective wall, the base and the steel pipe pile, and prevents the vehicle from rushing out of the road to cause more serious secondary accidents.

Description

Highway roadside safety protection and reinforcement system with limited space

Technical Field

The utility model relates to the field of roadside safety protection, in particular to a roadside safety protection reinforcing system with limited space.

Background

In the process of putting existing roads into operation, serious traffic accidents often occur due to various reasons, some road sections are sections with multiple accidents, and even vehicles continuously rush out of the road side. For high fill road sections, the rushing out of the vehicle results in loss of the vehicle itself on the one hand and severe damage to roadside residents or critical facilities on the other hand. The conventional protection mode for the situation is a corrugated beam guardrail or a common concrete guardrail, because the burial depth and the foundation size of the side of the high fill embankment are limited, the temporary solution is only treated but not treated in many cases, and the dangerous accident that the vehicle rushes out of the side of the road still occurs in the later period when similar situations occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a roadside safety protection and reinforcement system of a highway with limited space, which effectively solves the problems of low stability and poor protection capability of the foundation of the existing corrugated beam guardrail or common concrete guardrail.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a limited highway roadside safety protection reinforcerment system in space, this system lay in 8 roadside on the highway, its characterized in that: the basic unit of 8 roadside parts of highway sets up base reinforcing bar 5, sets up guardrail reinforcing bar 4 fixed with base reinforcing bar 5 at 8 roadside ends of highway, is fixed with steel pipe 3 in 5 bottoms of base reinforcing bar, pours cement concrete in guardrail reinforcing bar 4 and forms protective wall 1, pours cement concrete in base reinforcing bar 5 and forms base 2, pours cement concrete in steel pipe 3 and forms steel-pipe pile 3.

Each section of the protective wall 1 is provided with an expansion joint, and the expansion joint is filled with asphalt battings.

The base 2 is thicker than 50 cm.

And a glass fiber grating 7 is paved on the base 2.

The depth of the steel pipe piles 3 is larger than 5m, and the steel pipe piles are arranged in at least two rows.

The utility model has the beneficial effects that: 1) the roadside safety protection and reinforcement system for the highway, which is composed of the protective wall, the base and the steel pipe piles, is high in strength and strong in deformation resistance, improves the overall anti-collision capacity of the guardrail, is not easy to break, and prevents vehicles from rushing out of the guardrail to cause more serious secondary accidents.

2) The protective wall, the base and the steel pipe pile form a whole, so that the impact resistance is enhanced, and the field operation time is shortened.

Drawings

FIG. 1 is a schematic diagram of the system;

FIG. 2 is a schematic view of the installation of a rebar structure;

shown in the figure: protective wall 1, base 2, steel-pipe pile 3, guardrail reinforcing bar 4, base reinforcing bar 5, steel pipe 6, glass fiber grating 7, highway 8.

Detailed Description

The technical scheme of the utility model is further explained by specific embodiments in the following with the accompanying drawings:

example 1

The utility model provides a roadside safety protection and reinforcement system with limited space, which comprises a protection wall 1, a base 2 and a steel pipe pile 3.

Protection wall 1: the concrete height can be set according to the design rules of road traffic safety facilities (JTG/TD81-2017) of the department of transportation, guardrail steel bars 4 are arranged in the guardrail, concrete with the strength higher than C35 is adopted for pouring, an expansion joint is arranged every 10m of the guardrail, the joint width is 2cm, and the expansion joint is filled and compacted by asphalt bast fiber.

A base 2: milling the road base layer on the 8-road side of the road until the bottom surface of the base layer, and adjusting the removed base layer into the base 2 with the same thickness. The base 2 is internally provided with base steel bars 5 and is cast by concrete with the strength higher than C35.

And (3) steel pipe pile 3: two rows of miniature steel pipes 6 are driven into the roadbed and welded with the base 2, and concrete is poured on the steel pipes 6.

And synchronously pouring cement concrete inside the guardrail reinforcing steel bars 4, the base reinforcing steel bars 5 and the steel pipes 6, so that the protective wall 1, the base 2 and the steel pipe piles 3 which are formed by pouring are connected into a whole.

After the protective wall 1, the base 2 and the steel pipe pile 3 are poured, anti-cracking pastes are pasted at the joint of the top surface of the base 2, and then a layer of glass fiber grating is laid on the top surface of the anti-cracking pastes for anti-cracking.

The concrete construction steps are as follows:

(1) milling and planing a road base layer or a roadbed layer on the 8-road side of the road, and ensuring that the final milling and planing surface is smooth.

(2) Guardrail steel bars 4 and base steel bars 5 are placed in a binding mode, and the template is supported.

(3) Two rows of steel pipes 6 are driven into the roadbed, the driving depth is at least 5m, 2 rows of phi 127 multiplied by 6mm steel pipes are driven into the roadbed every 2m, and the upper ends of the steel pipes 6 are welded with the base steel bars 5.

(4) And (3) beginning to pour cement concrete, and pouring concrete in the guardrail reinforcing steel bars 4, the base reinforcing steel bars 5 and the steel pipes 6 synchronously to connect the three parts into a whole. And carrying out a series of conventional operations such as vibration, tamping and the like to ensure the compactness of the poured concrete, and finally sealing and curing.

(5) And (5) when the curing time reaches 48 hours, the mold can be removed. And (3) adhering 10 cm-wide anti-crack paste to the seam of the top surface of the panel of the base 2, and paving a glass fiber grating 7 on the top surface of the base.

The guard rail reinforcing device and the method thereof can be used for roadside dangerous road sections such as high embankments, high retaining walls and the like, road sections with high safety levels such as gullies, water source areas or oil depots and the like on the roadside, and particularly, accident frequent road sections with the roadside sides flushed by vehicles breaking the guard rails after the road sections are maintained for many times by using the traditional recovery or replacement method.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a limited highway roadside safety protection reinforcerment system in space, this system lay in the highway roadside, its characterized in that: the highway roadside part base layer is provided with base reinforcing steel bars, the highway roadside end is provided with guardrail reinforcing steel bars fixed with the base reinforcing steel bars, steel pipes are fixed to the bottoms of the base reinforcing steel bars, cement concrete is poured into the guardrail reinforcing steel bars to form a protective wall, cement concrete is poured into the base reinforcing steel bars to form a base, and the cement concrete is poured into the steel pipes to form a steel pipe pile.

2. The space-constrained roadside safety protection and reinforcement system of claim 1, further comprising: each section of the protective wall is provided with an expansion joint, and the expansion joint is filled with asphalt floc.

3. The roadside safety protection and reinforcement system for roads with limited space of claim 1, wherein: the base is thicker than 50 cm.

4. The roadside safety protection and reinforcement system for roads with limited space of claim 3, wherein: and a glass fiber grating is paved on the base.

5. The space-constrained roadside safety protection and reinforcement system of claim 1, further comprising: the depth of the steel pipe piles is larger than 5m, and the steel pipe piles are arranged in at least two rows.