CN216712592U

CN216712592U - Novel roadbed applying foamed light soil

Info

Publication number: CN216712592U
Application number: CN202122614496.XU
Authority: CN
Inventors: 张晓东; 吴初平; 彭建江; 周强; 陈谊; 刘大鹏; 李双; 范震环
Original assignee: Hunan International Communications Economic Engineering Cooperation Co ltd
Current assignee: Hunan International Communications Economic Engineering Cooperation Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-06-10
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a novel roadbed applying foam light soil, which comprises an old roadbed and a foam light soil layer arranged on the old roadbed, wherein a plurality of pouring blocks are buried in the slope side of the old roadbed, a pre-pouring surface is paved on the bottom plane of the old roadbed, a connecting plate is installed on the pre-pouring surface, the upper part of the connecting plate is fixedly connected with a pouring mechanism, a plurality of fixing bolts are connected on the connecting plate, the fixing bolts are connected with the pouring blocks through reinforcing steel bar nets, and the foam light soil layer is poured between the old roadbed and the connecting plate; through set up the reinforcing bar net in foam light soil layer can prevent because long-time use, the phenomenon of crack appears in the road surface, can prevent that long-time use foam light soil layer from the phenomenon of collapsing, through set up the mechanism of pouring on the connecting plate, can advance to pour foam light soil layer through the pipeline under the condition that does not influence the traffic.

Description

Novel roadbed applying foamed light soil

Technical Field

The utility model belongs to the technical field of novel roadbeds, and particularly relates to a novel roadbed applying foamed light soil.

Background

In the current domestic highway extension project, the most widely used method is to directly extend and widen the original roadbed to the outer side of the edge of the roadbed, and in the operation process of the extended highway, the reversed-basin settlement difference gradually appears between the new roadbed and the old roadbed, and even the cracking and the damage of structures on the two sides of a road surface and an embankment can be seriously caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the present invention aims to provide a novel roadbed applying foamed lightweight soil.

The technical scheme adopted by the utility model is as follows:

the utility model provides an use novel road bed of foam light soil, is in including old roadbed and setting foam light soil layer on the old roadbed, old roadbed slope side has buried a plurality of underground and has pour the piece, old roadbed bottom plane upper berth is equipped with the face of building in advance, install the connecting plate on the face of building in advance, the upper portion fixedly connected with of connecting plate pours the mechanism, be connected with a plurality of gim peg, a plurality of on the connecting plate the gim peg and a plurality of pour and connect through the reinforcing bar net between the piece, old roadbed with foam light soil layer has been pour between the connecting plate, foam light soil layer with concrete layer has been laid on the upper portion of old roadbed, the pitch layer has been laid on concrete layer upper portion.

Preferably, the fixing comprises an embedded fixing body embedded in the foam light soil layer, one end of the embedded fixing body is provided with a half-moon-shaped connecting plate fixedly installed through bolts, and a reinforcing mesh is connected between the embedded fixing body and the half-moon-shaped connecting plate through the installed half-moon-shaped connecting plate.

Preferably, the other side of the embedded fixing body is fixedly connected with a first pressing plate, the outer side of the first pressing plate is fixedly connected with a threaded column, and a second pressing plate is fixedly connected onto the threaded column through a nut.

Preferably, the pouring mechanism comprises a pouring pipe fixedly connected to the connecting plate, a discharging pipe is arranged in the middle of the pouring pipe, and a switch valve is arranged on the discharging pipe.

Preferably, the installation and connection part of each two sections of pouring pipes is provided with a sealing pipe hoop.

Preferably, a bolt is arranged in the precast surface, and the connecting plate on the precast surface is installed and fixed through a nut.

Preferably, the raw soil in the foam light soil layer is fine sand or engineering waste soil with the particle size of less than 5 mm.

The utility model has the beneficial effects that: the reinforcing mesh is arranged in the foam light soil layer, so that the phenomenon that cracks appear on the pavement due to long-time use can be prevented, the pouring blocks and the fixing bolts are arranged on the two sides of the reinforcing mesh, so that the foam light soil layer can provide a pulling force for an old road bed, the phenomenon that the foam light soil layer collapses due to long-time use can be prevented, and the pouring mechanism is arranged on the connecting plate, so that the foam light soil layer can be poured through a pipeline under the condition that the traffic is not influenced; construction is convenient, vibration tamping is not needed, and the construction period is short.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of the overall axial side construction of the present invention;

FIG. 2 is a schematic diagram of the right side of the overall present invention;

FIG. 3 is a schematic view of the anchor of the present invention;

fig. 4 is a schematic structural view of the pouring mechanism of the present invention.

In the figure: 1-old road bed; 2-pouring blocks; 3-reinforcing mesh; 4-precasting the surface; 5-connecting plates; 6-fixing bolt; 601-embedding a fixed body; 602-a threaded post; 603-a second platen; 604-a first platen; 605-half moon shape; 7-pouring a mechanism; 701, pouring a pipe; 702-a discharge pipe; 703-a switching valve; 704-sealing the pipe clamp; 8-foam light soil layer; 9-concrete layer; 10-asphalt layer.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments.

The following describes an embodiment of the present invention with reference to fig. 1-4, a novel roadbed using foamed lightweight soil comprises an old roadbed 1 and a foamed lightweight soil layer 8 arranged on the old roadbed 1, a plurality of pouring blocks 2 are buried at the slope side of the old roadbed 1, a pre-pouring surface 4 is paved on the bottom plane of the old roadbed 1, the pre-construction surface 4 is provided with a connecting plate 5, the upper part of the connecting plate 5 is fixedly connected with a casting mechanism 7, a plurality of fixing bolts 6 are connected on the connecting plate 5, the fixing bolts 6 are connected with the pouring blocks 2 through reinforcing meshes 3, a foam light soil layer 8 is poured between the old road bed 1 and the connecting plate 5, a concrete layer 9 is laid on the foam light soil layer 8 and the upper part of the old road bed 1, and an asphalt layer 10 is laid on the upper part of the concrete layer 9; the reinforcing mesh 3 is arranged in the foam light soil layer 8, so that the phenomenon of cracks on the road surface due to long-time use can be prevented, the pouring blocks 2 and the fixing bolts 6 are arranged on two sides of the reinforcing mesh 3, the foam light soil layer 8 can provide a pulling force for the old road bed 1, the phenomenon of collapse due to long-time use of the foam light soil layer 8 can be prevented, and the pouring mechanism 7 is arranged on the connecting plate 5, so that the foam light soil layer 8 can be poured through a pipeline under the condition of not influencing traffic.

Preferably, in an embodiment of the present invention, referring again to fig. 3, the fixing bolt 6 comprises a pre-buried fixing body 601 pre-buried in the foamed lightweight soil layer 8, one end of the pre-buried fixing body 601 is composed of a half-moon 605 connecting plate 5 fixedly installed by bolts, and a reinforcing mesh 3 is connected between the pre-buried fixing body 601 and the half-moon 605 connecting plate 5 by installing the half-moon 605 connecting plate 5; the other side of the embedded fixing body 601 is fixedly connected with a first pressing plate 604, the outer side of the first pressing plate 604 is fixedly connected with a threaded column 602, and the threaded column 602 is fixedly connected with a second pressing plate 603 through a nut; after the foam light soil layer 8 is solidified, the connecting plate 5 arranged on the precast surface 4 can be removed, the second pressing plate 603 in the fixing bolt 6 is removed firstly, the connecting plate 5 can be removed, meanwhile, the first pressing plate 604 in the fixing bolt 6 can provide a force on the old road bed 1 for the foam light soil layer 8, and the risk of collapse of the foam light soil layer 8 in the long-time use process is avoided.

Preferably, in an embodiment of the present invention, referring to fig. 4 again, the pouring mechanism 7 includes a pouring pipe 701 fixedly connected to the connecting plate 5, a discharging pipe 702 is disposed in the middle of the pouring pipe 701, and an on-off valve 703 is disposed on the discharging pipe 702; a sealing pipe hoop 704 is arranged at the installation connection position of each two sections of the pouring pipes 701; the precast surface 4 is provided with a bolt, and the connecting plate 5 on the precast surface 4 is installed and fixed through a nut; before pouring the foam light soil layer 8, the connecting plate 5 is firstly installed, the pouring mechanism 7 fixedly connected to the connecting plate 5 completes butt joint through the sealing pipe hoop 704, the foam light soil can be transported through a pipeline and can be poured through the switch valve 703 in the pouring process, so that the construction area can be saved, only a fence is supposed on the edge of an original road, the vehicle can be continuously communicated on the original road, and the operation can be carried out on site without too many workers in the pouring process, so that the traffic smoothness can be ensured, and meanwhile, unnecessary potential safety hazards can be reduced through reducing the number of the workers.

Preferably, the raw soil in the foamed light soil layer 8 is fine sand or engineering waste soil with the particle size of less than 5 mm; the fine sand or the engineering waste soil with the particle size of less than 5mm is selected to ensure that the foamed lightweight soil has good fluidity, so that the foamed lightweight soil can be transported through a pipeline.

The utility model relates to a novel roadbed applying foam light soil, which has the working principle that:

the substrate is first treated:

1) when the roadbed side slope is higher, the panel is erected on the side slope, the foundation burial depth is adjusted during construction to enable the number of upper panel blocks to be an integer, the distance between the front edge of the outer edge of the foundation is not less than 2m, the width of an excavated substrate is not less than 3m, and the substrate is leveled and compacted as required. A 30cm unscreened gravel base is arranged under the foamed light soil to meet the requirements of base drainage and leveling, and an HDPE impermeable geomembrane is paved on the gravel to prevent underground water from permeating for a long time and carrying away substances such as cement-based slurry and the like;

2) before the anti-seepage geomembrane is constructed, a substrate is required to be compact and flat, the anti-seepage geomembrane can be laid after sharp foreign matters are removed, the anti-seepage geomembrane is stretched and pulled out in time after being unfolded, the geomembrane is close to a lower bearing surface, is matched and flat, has no protruding wrinkles, and the overlapping width of the geomembranes of adjacent frames is not less than 5 cm;

in the using process, firstly, a pouring block 2 and a pre-pouring surface 4 are poured on an old road bed 1, a reinforcing mesh 4 is laid between a fixing bolt 6 and the pouring block 2 after a connecting plate 5 and the fixing bolt 6 are installed, the connecting plate 5 is installed before a foam light soil layer 8 is poured, a pouring mechanism 7 fixedly connected to the connecting plate 5 is butted through a sealing pipe hoop 704, the pouring foam light soil can be transported through a pipeline and can be poured through a switch valve 703 in the pouring process, so that the construction area can be saved, only a fence needs to be assumed at the edge of the original road, the original road can be continuously communicated, and the operation is not needed to be carried out on site by too many people in the pouring process, so that the traffic smoothness can be ensured, and meanwhile, the unnecessary potential safety hazards are reduced by reducing the number of operating personnel; the steel bar mesh 3 is arranged in the foam light soil layer 8, so that the phenomenon of cracks on a pavement due to long-time use can be prevented, the pouring blocks 2 and the fixing bolts 6 are arranged on the two sides of the steel bar mesh 3, so that the foam light soil layer 8 can provide a pulling force for the old roadbed 1, and the pouring mechanism 7 is arranged on the connecting plate 5, so that the foam light soil layer 8 can be poured through a pipeline under the condition of not influencing traffic; after the foam light soil layer 8 is solidified, the connecting plate 5 arranged on the precast surface 4 can be detached, the second pressing plate 603 in the fixing bolt 6 is detached firstly, the connecting plate 5 can be detached, meanwhile, the first pressing plate 604 in the fixing bolt 6 can provide a force on the old road bed 1 for the foam light soil layer 8, and the risk of collapse of the foam light soil layer 8 in the long-time use process is avoided;

the method comprises the following steps of:

1) before construction, dividing a pouring area and a pouring layer of a designed pouring body by combining equipment production capacity, construction period requirements and the like, marking a foamed lightweight soil pouring top mark altitude by a hanging line, and controlling the thickness of a single layer within 0.3-1 m, wherein the thickness of the single layer is controlled to be 0.4m according to the on-site work, material and machine configuration conditions so as to ensure that the construction time of single-layer pouring can be completed before the initial setting of cement paste;

2) the foam light soil filling adopts a layered block-dividing mode, and is not suitable for block-dividing filling in the transverse direction of the road;

3) when the longitudinal and transverse dimensions of the roadbed are large, the maximum top surface area of a single pouring area is not more than 400m2, the engineering takes a longitudinal 20m as a pouring section, and the pouring area is 200m 2-300 m 2;

4) on the layer surface of the metal net designed on the drawing, a layered interface of a pouring layer is divided.

The present invention is not limited to the above-mentioned alternative embodiments, and any other various products can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, all of which fall within the scope of the present invention, fall within the protection scope of the present invention.

Claims

1. The utility model provides an use novel road bed of foam light soil which characterized in that: comprises an old road bed (1) and a foam light soil layer (8) arranged on the old road bed (1), a plurality of pouring blocks (2) are buried at the slope side of the old road bed (1), a pre-pouring surface (4) is paved on the bottom plane of the old road bed (1), the precast surface (4) is provided with a connecting plate (5), the upper part of the connecting plate (5) is fixedly connected with a pouring mechanism (7), a plurality of fixing bolts (6) are connected on the connecting plate (5), the fixing bolts (6) are connected with the pouring blocks (2) through reinforcing steel bar meshes (3), a foam light soil layer (8) is poured between the old road bed (1) and the connecting plate (5), and a concrete layer (9) is laid on the upper parts of the foam light soil layer (8) and the old road bed (1), and an asphalt layer (10) is laid on the upper part of the concrete layer (9).

2. The novel roadbed applying the foam lightweight soil as claimed in claim 1, wherein the novel roadbed comprises: the fixing bolt (6) comprises an embedded fixing body (601) embedded in the foam light soil layer (8), one end of the embedded fixing body (601) is provided with a half-moon-shaped (605) connecting plate (5) fixedly installed through bolts, and a reinforcing mesh (3) is connected between the embedded fixing body (601) and the half-moon-shaped (605) connecting plate (5) through the installation of the half-moon-shaped (605) connecting plate (5).

3. The novel roadbed applying the foam lightweight soil as claimed in claim 2, wherein the novel roadbed comprises: the other side of the embedded fixing body (601) is fixedly connected with a first pressing plate (604), the outer side of the first pressing plate (604) is fixedly connected with a threaded column (602), and a second pressing plate (603) is fixedly connected onto the threaded column (602) through a nut.

4. The novel roadbed applying the foam lightweight soil as claimed in claim 1, wherein the novel roadbed comprises: the pouring mechanism (7) comprises a pouring pipe (701) fixedly connected to the connecting plate (5), a discharging pipe (702) is arranged in the middle of the pouring pipe (701), and a switch valve (703) is arranged on the discharging pipe (702).

5. The novel roadbed applying the foam lightweight soil as claimed in claim 4, wherein the novel roadbed comprises: and a sealing pipe hoop (704) is arranged at the mounting connection position of each two sections of the pouring pipes (701).

6. The novel roadbed applying the foam lightweight soil as claimed in claim 1, wherein the novel roadbed comprises: the prefabricated face (4) is provided with a bolt, and the connecting plate (5) on the prefabricated face (4) is installed and fixed through a nut.

7. The novel roadbed applying the foam lightweight soil as claimed in claim 1, wherein the novel roadbed comprises: the raw material soil in the foam light soil layer (8) is fine sand or engineering waste soil with the particle size of less than 5 mm.