CN217053085U

CN217053085U - Maintenance structure for rapidly treating asphalt settlement

Info

Publication number: CN217053085U
Application number: CN202122636780.7U
Authority: CN
Inventors: 茅卫生; 叶林; 陈纲; 陶戴邦; 王辉; 陈凯华; 陈德昊
Original assignee: Shanghai Urban Construction City Operation Group Co ltd; Shanghai Municipal Maintenance & Management Co ltd
Current assignee: Shanghai Urban Construction City Operation Group Co ltd; Shanghai Municipal Maintenance & Management Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-07-26
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a maintenance structure of rapid processing pitch subsidence squeezes into a plurality of stake supports below the pitch subsidence district on road surface, and the fine grid of glass is mated formation on the stake to it is fixed with the fine grid of glass and stake top with the apron, the fine thin layer of scattering of paving above the fine grid of glass. The utility model discloses the effectual road surface disease that has solved that the subsidence area is little, the degree of depth is big. The structure does not occupy an expressway excessively, does not need traditional large-area excavation and high-power mechanical rolling, reduces the influence of construction on expressway traffic, and has the characteristics of low cost, high speed and the like.

Description

Maintenance structure for rapidly processing asphalt settlement

Technical Field

The utility model relates to a road surface maintenance structure, especially a maintenance structure of rapid processing pitch subsidence.

Background

With the increase of traffic flow and operation age, pits and sinks appear on the road surface, even the sinks are large, and serious potential safety hazards are caused to driving.

The current methods for treating subsidence mainly comprise two methods:

the first method is excavation of foundation pit at subsidence position and layered compaction, the method has large excavation amount, many working procedures, long time for base layer treatment and maintenance, and is greatly influenced by traffic enclosing conditions on expressway.

The second method is that after the loose part is cleaned, the loose part is directly paved from bottom to top, the method does not reinforce the lower part of the subsidence, and the upper part continues to sink and crack or even sink under the action of the automobile load.

Therefore, the two schemes both have disadvantages, and the fundamental reason is that the reinforcing mode is single, so that the problem of subgrade settlement cannot be fundamentally solved, or rapid construction and rapid traffic opening cannot be realized.

Disclosure of Invention

In order to solve prior art and have implementation cost height, consolidate the single scheduling problem of form, the utility model provides a maintenance structure of rapid processing pitch subsidence, this structure especially is adapted to the driving road environment that the traffic is big, the lane is few, especially the ramp bridge, is not convenient for excavate on a large scale.

In order to realize the purpose, the utility model discloses a technical scheme is: a plurality of timber piles are driven into the lower portion of an asphalt settlement area of a road surface to support, a glass fiber grating is paved on the timber piles, the glass fiber grating is fixed to the top of the timber piles through a cover plate, and a spreading thin layer is paved on the glass fiber grating.

Further, a plurality of the timber piles are arranged in a quincunx shape.

Further, the diameter of the timber pile is 4cm, and the driving depth is 25 cm.

Further, the cover plate adopts nine clamping plates.

Further, the top of the timber pile is flush, and the gradient of the timber pile is consistent with the gradient of the road surface.

Furthermore, polyester glass fiber cloth is placed at the interlayer boundary part of the glass fiber grating.

Further, the sprinkling thin layer is formed by asphalt concrete with the thickness of 6cm and modified asphalt with the thickness of 4cm which are paved in sequence.

Owing to adopted above technique, the utility model discloses following beneficial effect has:

1. effectively reinforcing the damage of the subsidence area and ensuring the driving safety.

2. Through the construction of minizone, reduce and enclose the scope, it is little to occupy the lane.

3. The road sealing operation time is short, the normal traffic of the road is facilitated, and the hidden social benefit is created.

Drawings

FIG. 1 is a schematic view of a maintenance structure for rapidly treating asphalt settlement according to the present invention;

fig. 2 is a schematic plan view of the maintenance structure for rapidly treating asphalt settlement of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the repair structure for rapidly treating asphalt settlement comprises carbonized wood piles, geogrids, sprinkling thin layers and the like. A plurality of timber piles 1 are driven into an asphalt subhorizontal layer A of an asphalt subsidence area of a pavement for supporting, a glass fiber grating 2 is paved on the timber piles 1, the glass fiber grating 2 is fixed with the top of the timber piles 1 through a cover plate 3, and a spreading thin layer is paved on the glass fiber grating 2. The spreading thin layer is formed by paving asphalt concrete 4 with the thickness of 6cm and modified asphalt 5 with the thickness of 4cm in sequence.

In FIG. 1, B is the height of the top surface of the bridge deck in the original subsidence area.

Use certain ring road as the example, the utility model discloses the reinforced mode of carbonization stake with geogrid has been taken. Wherein the timber piles and geogrids are arranged according to the attached figures 1 and 2. The specific construction process is as follows:

firstly, cleaning the surface garbage and loosening part

(1) Lofting and cutting: cutting according to the principles of 'square compensation of round hole and positive compensation of inclined hole' according to the position of the disease, wherein the cutting depth is 4cm (SMA) +6cm (AC 20);

(2) cleaning a base layer: cleaning loose parts of the base layer until solid parts are exposed;

secondly, the glass fiber grating for driving the timber pile and paving

(1) Measuring and lofting: the wooden piles are arranged in a quincunx mode, and the distance between every two wooden piles is 15 cm.

(2) Drilling: and (4) drilling holes with the depth of 2cm by adopting an electric hand drill.

(3) Driving a timber pile: the diameter of the wood pile is 4cm, the hammering method is adopted for construction, and the driving depth is about 25 cm;

(4) paving a glass fiber grating: the glass fiber grating is fixed by a wooden pile.

Three, wooden pile top cover plate

(1) And (3) finishing and leveling the timber pile: after the timber pile is driven, leveling the timber pile, wherein the gradient of the timber pile is the same as that of the road surface;

(2) a top cover plate: a cover plate at the top of the timber pile, wherein the cover plate adopts nine clamping plates and has the size of (10cm by 2 cm); fourthly, spreading a thin layer for waterproof sealing, and spreading 6cm (AC20) and 4cm (SMA) in sequence.

Claims

1. The utility model provides a maintenance structure of rapid processing pitch subsidence which characterized in that: the method comprises the following steps of driving a plurality of timber pile supports below an asphalt subsidence area of a road surface, paving a glass fiber grating on the timber piles, fixing the glass fiber grating and the tops of the timber piles by using a cover plate, and paving a spreading thin layer on the glass fiber grating.

2. The repair structure for rapidly processing asphalt subsidence according to claim 1, wherein: the multiple wooden piles are arranged in a quincunx shape.

3. The repair structure for rapidly treating asphalt subsidence according to claim 1, wherein: the diameter of the timber pile is 4cm, and the driving depth is 25 cm.

4. The repair structure for rapidly processing asphalt subsidence according to claim 1, wherein: the cover plate adopts nine clamping plates.

5. The repair structure for rapidly treating asphalt subsidence according to claim 1, wherein: the tops of the wood piles are flush, and the gradient of the wood piles is consistent with the gradient of the road surface.

6. The repair structure for rapidly processing asphalt subsidence according to claim 1, wherein: and polyester glass fiber cloth is placed at the interlayer boundary part of the glass fiber grating.

7. The repair structure for rapidly treating asphalt subsidence according to claim 1, wherein: the spreading thin layer is formed by paving asphalt concrete with the thickness of 6cm and modified asphalt with the thickness of 4cm in sequence.