CN210481946U

CN210481946U - Highway fill curb convenient to construction and quality control

Info

Publication number: CN210481946U
Application number: CN201921056183.3U
Authority: CN
Inventors: 陶澄臻; 李国玺; 袁振波; 邓平; 孙俊; 张志华; 王海林; 骆作辉; 王亚奇; 王振勇
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: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-05-08
Anticipated expiration: 2029-07-08

Abstract

The utility model relates to a highway curb, more specifically the highway fill curb convenient to construction and quality control that says so has solved the problem that slope part construction difficulty and compaction quality are difficult to control among the traditional construction method of highway curb. Vertically erecting a formwork at a certain distance from the base layer of the pavement structure and the side, close to the toe of the slope, of the base layer of the pavement structure, laying a layer of composite geomembrane in the non-paved area of the base layer of the pavement structure and the base layer of the pavement structure after the filler reaches the compactness, arranging drainage pipes at intervals along the longitudinal direction, and then filling broken stones to form a broken stone drainage layer to drain the retained water on the top surface of the base layer; the contact surface of the gravel drainage layer with the base layer of the pavement structure and the subbase layer of the pavement structure is adjusted to be step-shaped from the traditional oblique straight line shape; paving a steel bar mesh and a cast-in-place concrete shoulder pad outside the gravel drainage layer; the asphalt water blocking tape is arranged on the surface layer of the pavement structure.

Description

Highway fill curb convenient to construction and quality control

Technical Field

The utility model relates to a highway curb, more specifically the highway fill curb convenient to construction and quality control that says so.

Background

The road shoulder is a strip-shaped structure part with a certain width from the outer edge of the traffic lane to the edge of the roadbed, and comprises a hard road shoulder and a road shoulder. The main functions of the road shoulder are to protect the stability of main structures such as a traffic lane and the like, temporarily provide a parking position for a vehicle with mechanical failure or emergency, provide lateral excess width for installing traffic safety facilities, enable rainwater to be discharged at a position far away from the traffic lane, reduce rainwater infiltration of the traffic lane and the like.

The road shoulder is an important structure for ensuring the integrity of the road bed and the road surface and the drainage of the road surface, so that the quality of the road shoulder is related to the strength and the stability of the road bed and the road surface structure and the smoothness of driving. The filling road section of the expressway is generally compacted according to a certain slope rate, the traditional road shoulder construction is compacted in real time according to the slope rate, the construction of the slope part is difficult, and the compaction degree of the slope part cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a highway fill curb convenient to construction and quality control, has solved the problem that slope part construction difficulty and compaction quality are difficult to control among the traditional construction method of highway curb.

The vertical formwork of a certain distance of the slope foot side of the base layer and the subbase layer of the pavement structure is filled with gravels in the base layer and the non-paved area of the subbase layer to form a gravels drainage layer for draining the retained water on the top surface of the base layer, and the contact surface of the gravels drainage layer with the base layer and the subbase layer is adjusted to be step-shaped by the traditional oblique straight line.

The utility model relates to a highway fill curb's beneficial effect convenient to construction and quality control does:

the utility model relates to a highway fill curb convenient to construction and quality control has solved the problem that slope part construction difficulty and compaction quality are difficult to control among the traditional construction method of highway curb.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the cross-sectional structure diagram of the highway fill road shoulder convenient for construction and quality control.

Fig. 2 is a partially enlarged schematic view of the inner ring structure of fig. 1.

Fig. 3 is a sectional view of a filling road surface structure of an expressway under a conventional construction method.

In the figure: a face layer 1 of a pavement structure; a base layer 2 of the pavement structure; a sub-base layer 3 of the pavement structure; a macadam drainage layer 4; casting concrete shoulder pads 5 on site; a composite geomembrane 6; a drain pipe 7; an asphalt water blocking tape 8; a mesh reinforcement 9.

Detailed Description

The following describes this embodiment with reference to fig. 1, 2 and 3, and the utility model relates to a highway shoulder, more specifically the highway fill shoulder convenient to construction and quality control that says so, including surface course 1 of pavement structure, basic unit 2 of pavement structure, underlayment 3 of pavement structure, rubble drainage layer 4, cast in situ concrete shoulder pad 5, compound geomembrane 6, drain pipe 7, pitch water blocking area 8, reinforcing bar net 9, solved the problem that the slope part is under construction and compaction quality is difficult to control in the traditional construction method of highway shoulder.

Vertically erecting a formwork at a certain distance from the slope toe side of a base layer 2 of a pavement structure and a base layer 3 of the pavement structure, after filler reaches the compaction degree, laying a layer of composite geomembrane 6 in the non-paved area of the base layer 2 of the pavement structure and the base layer 3 of the pavement structure, arranging drain pipes 7 at intervals along the longitudinal direction, and filling gravel to form a gravel drainage layer 4 for draining the retained water on the top surface of the base layer; the contact surfaces of the gravel drainage layer 4 and the base layer 2 and the subbase layer 3 of the pavement structure are adjusted to be step-shaped from a traditional inclined straight line shape; a reinforcing mesh 9 and a cast-in-place concrete shoulder pad 5 are laid outside the gravel drainage layer 4; the asphalt water-blocking tape 8 is arranged on the surface layer 1 of the pavement structure.

Claims

1. The utility model provides a highway fill curb convenient to construction and quality control, includes surface course (1) of pavement structure, base layer (2) of pavement structure, sub-base (3) of pavement structure, rubble drainage blanket (4), cast in situ concrete shoulder pad (5), compound geomembrane (6), drain pipe (7), pitch water blocking area (8), reinforcing bar net (9), its characterized in that: vertically erecting a formwork at a certain distance from the slope foot side of a base layer (2) of a pavement structure and a base layer (3) of the pavement structure, after filler reaches compactness, laying a layer of composite geomembrane (6) in an area where the base layer (2) of the pavement structure and the base layer (3) of the pavement structure are not laid, arranging drain pipes (7) at intervals along the longitudinal direction, filling gravel to form a gravel drainage layer (4) to drain out retained water on the top surface of the base layer, adjusting the contact surface of the gravel drainage layer (4) with the base layer (2) of the pavement structure and the base layer (3) of the pavement structure into a step shape from a traditional oblique straight line shape, and laying a reinforcing mesh (9) and a cast-in-place concrete shoulder pad (5) outside the gravel drainage layer (4); the asphalt water blocking tape (8) is arranged on the surface layer (1) of the pavement structure.