CN212477388U - Earthing corrugated steel plate bridge based on supporting steel bars - Google Patents

Abstract

The utility model discloses an earth covering corrugated steel plate bridge based on supporting steel bars, which comprises a front concrete foundation, a rear concrete foundation, an arch ring, a left vertical retaining wall, a right vertical retaining wall, a gravel grouting filling layer and a filling layer, wherein the gravel grouting filling layer and the filling layer are arranged on the arch ring; the gravel grouting filling layer comprises a gravel pavement layer and a support frame arranged in the gravel pavement layer, and a front grouting pipeline and a rear grouting pipeline are symmetrically arranged in the gravel pavement layer; the support frame is fixed on the arch ring and comprises a plurality of support reinforcing steel bars. The utility model has simple structure, reasonable design, simple construction and good use effect, adopts the gravel grouting filling layer positioned outside the arch ring to reinforce the arch ring, adopts a plurality of supporting steel bars to form a support frame to support and position the grouting pipeline, is simple and reliable to fix, and does not need to be dismantled in the later period; meanwhile, the gravel grouting filling layer and the filling soil layer are uniformly distributed between the two vertical retaining walls, so that the construction is simple, convenient and quick, and the construction quality of the constructed soil covering corrugated steel plate bridge can be ensured.

Description

Earthing corrugated steel plate bridge based on supporting steel bars

Technical Field

The utility model belongs to the technical field of the bridge construction, especially, relate to an earthing ripple steel sheet bridge based on supporting reinforcement.

Background

The corrugated steel sheet is a corrugated steel sheet produced by pressing a structural steel sheet into a corrugated shape in accordance with a specific specification. Due to the existence of the corrugations, the bending moment of inertia of the steel plate is increased, so that the corrugated steel plate has high bearing capacity and stability. Due to the orthotropic and easy-to-process performance of the corrugated steel plate, the corrugated steel structure can be fragmented and modularized in a factory, and can be mechanically assembled into various structural forms such as pipes, culverts, arch bridges and the like on site after the paint plating process.

The soil covered corrugated steel plate arch bridge takes the corrugated steel plates as arch rings, and soil is filled on two sides and above the arch rings to form a bridge and culvert structure. As a novel highway bridge and culvert structure, the corrugated steel plate of the soil-covered corrugated steel plate bridge and culvert has the characteristics of common stress and common deformation with the surrounding backfill, the corrugated steel plate and the surrounding backfill share the load effect, and the corrugated steel plate has very strong adaptability under a plurality of complex and difficult environments due to self-adaptive performance and elastic performance. Compared with other bridge structure forms, the corrugated steel plate arch bridge has the advantages of simple construction, quick assembly, short construction period and the like, and has great popularization potential in bridges and culverts with medium and small spans. At present, the application of corrugated steel plate bridge and culvert technology in China is still in the starting stage, and the research on the application of corrugated steel plate structures in medium and small arch bridges is just started.

The maximum span of the corrugated steel plate arch bridge is only ten meters generally, and the main reason is that the corrugated steel plate is used as a main stress member and has limited thickness; after the span is increased, the corrugated steel plate bridge has instability risk under the action of dead weight and unbalanced live load of the soil covering layer above the corrugated steel plate. In order to improve the bearing capacity of the corrugated steel plate arch bridge, the invention patent application ZL201511030659.2 published in 2016, 6, 8 and discloses a light arch bridge structure, which comprises an arch ring and foam concrete filling bodies filled above and at two sides of the arch ring, wherein the arch ring comprises a concrete arch plate and a steel plate arch shell made of corrugated steel plates, but the arch wall has limitations, which are specifically represented as follows: foam concrete is adopted on two sides and above the corrugated steel plate in a large range, so that although the bearing capacity of the structure is increased, the economic advantage of the soil-covered corrugated steel plate bridge is greatly reduced, and the construction convenience and other aspects are no longer advantageous. The invention patent application ZL201410421742.1 published in 12, 17 and 2014 discloses a strengthening method of an earth-covered corrugated steel plate-concrete combined arch bridge, wherein a corrugated steel plate-concrete combined arch ring is adopted to strengthen the strength and rigidity of the arch ring, and a reinforced concrete unloading plate is adopted to enlarge the stress area of the structure, so that the arch ring is stressed more uniformly; the galvanized corrugated steel pipe can reduce the dead load of the combined arch ring, but reduce the stress and deformation of the combined arch ring. A combined corrugated steel plate arch bridge is disclosed in a utility model patent application ZL201320127712.0 published in 2013, 11, 6 and adopts double-layer corrugated steel plates for buckling connection, concrete is filled between the two layers of corrugated steel plates and a combined section is formed, so that the rigidity and the bearing capacity of an arch ring are improved; however, the combined corrugated steel plate arch bridge has the limitations that: the steel consumption of the double-layer corrugated steel plate is doubled, the concrete filled between the steel plates has higher requirements on site construction, and the economy and the construction convenience are greatly reduced. The invention patent application 201310079450.X, published in 2013, 5, month and 22, discloses a hollow large-span soil-filled composite corrugated steel plate arch bridge structure, wherein a large-span main arch ring of the combined structure adopts sandwich mortar composite corrugated steel plates, the corrugated steel plates are connected into inverted double-layer plates through bolts, studs are arranged in interlayers and filled with high-strength mortar to form an integral sandwich mortar composite corrugated steel plate, a bellmouth adopts a corrugated steel pipe, and load is transmitted between the main arch ring and the bellmouth through soil filling; however, the arch bridge structure has limitations that: the stud is arranged on the inner wall of the corrugated steel plate, the process is complex, and the economy is reduced by using the double-layer steel plate.

In fact, earthing corrugated steel plate bridge's main advantage lies in its construction convenience, can form the arched bridge with the corrugated steel plate concatenation, adopts the individual layer corrugated steel plate to have better economic nature simultaneously, if adopt concrete or double-deck corrugated steel plate to strengthen the cross-section, not only increase field work volume, and can increase the structure cost.

According to analysis, the bearing capacity of the earthing corrugated steel plate bridge is not only from the steel plate, but more importantly, the constraint effect of the soil body outside the corrugated steel plate on the deformation of the steel plate, but during construction, the earth filled outside the corrugated steel plate is difficult to compact at the part close to the corrugated steel plate, the constraint effect of the soil body on the steel plate is reduced, the main reason is that a compacting machine cannot be too close to the steel plate bridge, the steel plate is prevented from being damaged, and in addition, when the earth pressure is too close to the steel plate bridge, the deformation of the corrugated steel plate can be possibly caused by the earth pressure. In addition, because the corrugated steel plates are usually overlapped, the defects of low transverse connection rigidity, poor transverse integrity, insufficient longitudinal rigidity and the like often occur in practical application, and especially when the span exceeds a certain range, the integral rigidity of the corrugated steel plate arch bridge is difficult to meet the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the deficiency in above-mentioned prior art is directed against, provide an earthing ripple steel plate bridge based on supporting reinforcement, its simple structure, reasonable in design and construction are simple and convenient, excellent in use effect, adopt the rubble slip casting filling layer that is located the arch ring outside to consolidate the arch ring, and adopt multichannel to be fixed in the rubble slip casting filling layer supporting frame that constitutes of supporting reinforcement and support and fix a position grouting pipeline, it is fixed simple and convenient, firm, can simplify the work progress of rubble slip casting filling layer and can ensure the construction quality of rubble slip casting filling layer by a wide margin, and the support frame later stage need not to demolish; meanwhile, the gravel grouting filling layer and the filling soil layer are uniformly distributed between the two vertical retaining walls, so that the construction is simple, convenient and quick, and the construction quality of the constructed soil covering corrugated steel plate bridge can be ensured.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an earthing ripple steel sheet bridge based on supporting reinforcement which characterized in that: the concrete foundation comprises a front concrete foundation and a rear concrete foundation, an arch ring erected above the two concrete foundations, a left vertical retaining wall and a right vertical retaining wall which are symmetrically arranged, a gravel grouting filling layer arranged on the arch ring and a filling layer covering the outside of the gravel grouting filling layer, wherein the two concrete foundations are horizontally arranged and are arranged on the same horizontal plane, and the two concrete foundations are arranged in parallel and are arranged along the transverse bridge direction; the gravel grouting filling layer is arranged between the arch ring and the filling layer, and the bottoms of the front side and the rear side of the gravel grouting filling layer are supported on one concrete foundation; the arch ring is formed by bending corrugated steel plates, the front end and the rear end of the arch ring are supported on one concrete foundation, and the gravel grouting filling layer is an arch filling layer; the two vertical retaining walls are arranged in parallel and are arranged along the longitudinal bridge direction, the two vertical retaining walls are respectively arranged above the left side and the right side of the arch ring, and the gravel grouting filling layer and the filling soil layer are both positioned between the two vertical retaining walls;

the gravel grouting filling layer comprises a gravel pavement layer paved on the arch ring and supporting frames arranged in the gravel pavement layer, the bottoms of the front side and the rear side of the gravel pavement layer are supported on one concrete foundation, and the cross section of the gravel pavement layer is arched; a front grouting pipeline and a rear grouting pipeline are symmetrically arranged in the gravel pavement layer, and each grouting pipeline is in a rectangular waveform; each grouting pipeline comprises a plurality of horizontally arranged grouting pipes, the plurality of grouting pipes are arranged from bottom to top along the contour line of the arch ring and are arranged along the transverse bridge direction, the lengths of the plurality of grouting pipes are the same, and two adjacent grouting pipes are connected through a connecting pipe; the grouting pipes and the connecting pipes are straight steel pipes, and the pipe wall of each grouting pipe is provided with a plurality of grouting holes; one grouting pipe positioned at the lowest part in each grouting pipeline is a lower grouting pipe, one end of each lower grouting pipe is connected with a connecting pipe, and the other end of each lower grouting pipe is a grouting opening;

the supporting frame is fixed on the arch ring and comprises a plurality of supporting reinforcing steel bars which are arranged on the same plane from left to right, the structure and the size of the plurality of supporting reinforcing steel bars are the same, the plurality of supporting reinforcing steel bars are arranged along the longitudinal bridge direction, and each supporting reinforcing steel bar is arched and has the same shape as the cross section of the arch ring; each grouting pipe in the two grouting pipelines is supported on a plurality of supporting steel bars, and each grouting pipe is fixedly connected with the plurality of supporting steel bars; the front grouting pipeline and the rear grouting pipeline are positioned on the outer side of the support frame;

the support frame and two slip casting pipelines are buried in the gravel pavement layer.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the other end of the lower grouting pipe is connected with grouting equipment through a connecting pipeline, and the two grouting pipelines are rectangular corrugated pipelines for injecting cement mortar into the gravel pavement layer.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the arch ring is formed by splicing a plurality of corrugated steel plate splicing blocks, the corrugated steel plate splicing blocks are rectangular, the corrugated steel plate splicing blocks are arranged in a plurality of rows from left to right along a transverse bridge direction, each row of corrugated steel plate splicing blocks comprises a plurality of corrugated steel plate splicing blocks arranged from front to back along a longitudinal bridge direction, and the corrugated steel plate splicing blocks in two adjacent rows of corrugated steel plate splicing blocks on the left and right are arranged in a staggered manner;

the left and right adjacent columns of corrugated steel plate splicing blocks in the arch ring are all fastened and connected into a whole through a column of fastening bolts, and each column of fastening bolts comprises a plurality of fastening bolts which are arranged on the same vertical surface from front to back along the longitudinal bridge direction; and the front and the rear adjacent corrugated steel plate splicing blocks in each row of fastening bolts are all connected into a whole by a plurality of fastening bolts arranged from left to right along the transverse bridge.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: each supporting steel bar is supported on one row of fastening bolts; the fastening bolts are supporting bolts or connecting bolts, the supporting bolts are used for supporting and supporting reinforcing steel bars in the fastening bolts, and the length of bolt rods of the supporting bolts is larger than that of the connecting bolts.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the grouting pipe is a steel floral pipe, a plurality of grouting holes are formed in the wall of the grouting pipe, and the connecting pipe is a steel pipe;

the supporting steel bars are connected with the bolt rods of the supporting bolts in a welding mode, and the grouting pipes are connected with the supporting steel bars supported by the grouting pipes in a welding mode.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the two vertical retaining walls have the same structure and size;

each vertical retaining wall is a vertical retaining wall formed by piling N layers of concrete blocks from bottom to top, the concrete blocks are concrete prefabricated blocks, wherein N is a positive integer and is more than or equal to 3; the thickness of each layer of the concrete blocks is the same, each layer of the concrete blocks comprises a plurality of concrete blocks which are distributed on the same horizontal plane from left to right, and the concrete blocks in two layers of the concrete blocks which are adjacent up and down are distributed in a staggered manner; the N layers of concrete blocks are fixedly connected into a whole through N-1 rows of tie bar belts arranged from bottom to top, and the N-1 rows of tie bar belts form a block tie system; each row of the tie bar belts comprises a plurality of tie bar belts distributed on the same horizontal plane from left to right, two adjacent layers of the concrete blocks are fixed into a whole through one row of the tie bar belts, and the two adjacent layers of the concrete blocks are connected into a whole through one tie bar belt;

each tie bar belt is U-shaped, each tie bar belt is formed by connecting a lower bar belt, an upper bar belt positioned right above the lower bar belt and a vertical connecting bar belt connected between the outer end of the lower bar belt and the outer end of the upper bar belt, the lower bar belt, the upper bar belt and the vertical connecting bar belt in each tie bar belt are uniformly distributed on the same vertical plane, and the lower bar belt, the upper bar belt and the vertical connecting bar belt are reinforced belts;

all lower rib belts in the building block drawknot system are horizontally arranged, all upper rib belts of each row of drawknot rib belts in the building block drawknot system are uniformly arranged on the same plane, and all vertical connecting rib belts in the building block drawknot system are vertically arranged and uniformly arranged on the same vertical plane; each concrete block is horizontally arranged, each concrete block is provided with a rib belt hole for a vertical connecting rib belt to penetrate through, each rib belt hole is a vertical through hole, and each vertical connecting rib belt penetrates through rib belt holes formed in two adjacent concrete blocks;

the sections, positioned on the inner side of the vertical retaining wall, in the lower reinforcement belt are lower reinforcement belt embedded sections, and the sections, positioned on the inner side of the vertical retaining wall, in the upper reinforcement belt are upper reinforcement belt embedded sections; the lower reinforcement belt embedding segment and the upper reinforcement belt embedding segment are segments embedded in a soil filling layer or a gravel grouting filling layer.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the concrete foundations are horizontally arranged, and the bottoms of the front side and the rear side of each vertical retaining wall are supported on one concrete foundation;

an arched cushion layer is padded between each vertical retaining wall and the arch ring, a horizontal cushion layer is padded between each vertical retaining wall and each concrete foundation, the front side and the rear side of each arched cushion layer are respectively provided with one horizontal cushion layer, and each arched cushion layer is connected with the horizontal cushion layers arranged on the front side and the rear side of the arched cushion layer to form a foundation cushion layer; the arched cushion layer and the horizontal cushion layer are both concrete cushion layers.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the concrete blocks are cuboid blocks or processed blocks, all the concrete blocks in the vertical retaining wall, which are in contact with the arched cushion layer, are processed blocks, and all the concrete blocks in the vertical retaining wall except the processed blocks are cuboid blocks; the contact surface of the processed building block, which is in contact with the arched cushion layer, is a cushion layer contact surface, and the processed building block is a cuboid building block which is processed to obtain the cushion layer contact surface;

the structure and the size of all cuboid building blocks in the vertical retaining wall are the same, every two bars are foraminiferous around all symmetrically opening on the cuboid building block, two the muscle is foraminiferous all to be located the longitudinal center axis of cuboid building block, two interval between the muscle is foraminiferous is L/2, and wherein L is the longitudinal length of cuboid building block.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the vertical distance between two adjacent grouting pipes in each grouting pipeline is 0.3-0.5 m;

each grouting pipeline comprises M grouting pipes, wherein M is a positive integer and is more than or equal to 3;

the broken stone pavement layer is divided into a vault filling layer arranged above the middle part of the arch ring and two front and rear side filling layers which are symmetrically arranged, the two side filling layers are connected to form a lower filling layer, and the vault filling layer is positioned right above the lower filling layer; each side filling layer is divided into M arch ring outer side filling layers from bottom to top, and the thickness of each arch ring outer side filling layer is 0.3-0.5M; the space between two adjacent grouting pipes in each grouting pipeline is the outer filling layer of the arch ring;

the upper surface of each arch ring outer side filling layer is a horizontal plane, and each arch ring outer side filling layer is provided with one grouting pipe.

The earthing corrugated steel plate bridge based on the supporting steel bars is characterized in that: the broken stone pavement layer is a pavement layer formed by broken stones paved on the arch ring, and the grain diameter of the broken stones is 5-20 mm;

the thickness of the gravel pavement layer is d, and the value range of d is 0.5-1 m;

all grouting pipes in the two grouting pipelines are positioned on the same arch surface, and the arch surface where all the grouting pipes in the two grouting pipelines are positioned is a grouting surface; the clear distance between the grouting surface and the arch ring is d/4-d/3.

Compared with the prior art, the utility model has the following advantage:

1. simple structure, reasonable in design and construction are simple and convenient, and the input cost is lower.

2. The support frame structural design is reasonable, simple and convenient to fix and firm, and multiple supporting reinforcing steel bars are all fixed on the arch ring that erects, support and fix a position two grouting pipelines through the support frame, and not only fixed simple and convenient to it is fixed firm, can ensure rubble layer of mating formation process, fill layer work progress and slip casting in-process the position of slip casting pipeline all is fixed, ensures the construction quality and the slip casting effect on rubble slip casting filling layer.

3. The gravel grouting filling layer is simple, convenient and quick to construct on site, a template does not need to be erected, only the gravel pavement layer in the gravel grouting filling layer needs to be paved in a layering mode and the filling layer needs to be constructed in a layering mode synchronously, and grouting is carried out through the grouting pipeline, so that the gravel grouting filling layer is formed.

4. The broken stone grouting filling layer has good use effect and high practical value, an arch area close to the arch ring in the filling layer outside the arch ring is reinforced by adopting the broken stone grouting filling layer, so that a soil body in the arch area close to the arch ring in the filling layer outside the arch ring is replaced by broken stones to obtain a broken stone pavement layer, and a grouting pipeline (namely a grouting pipeline) is reserved when the broken stone pavement layer is paved in a layered manner; after the completion of mating formation, carry out the mud jacking to the rubble layer of mating formation and handle, make cement mortar be full of the rubble space and form firm, reliable rubble slip casting filling layer, can effectively solve the corrugated steel board outside and fill out the difficult problem that the soil is difficult to the compaction, because the intensity of rubble slip casting filling layer is far greater than the intensity of filling layer, consequently can effectively retrain corrugated steel board's lateral deformation, increased substantially the bearing capacity of corrugated steel plate bridge.

5. The support frame and the grouting pipeline later stage need not to be dismantled, can effectively practice thrift the engineering time, and reduce construction cost, and multichannel supporting reinforcement and two grouting pipeline in the support frame all pour in rubble slip casting filling layer, can further improve the wholeness of rubble slip casting filling layer, support intensity and compressive strength, upwards carry out the wholeness reinforcement to the arch wall from horizontal bridge to and longitudinal bridge, can effectively solve the transverse connection rigidity that corrugated steel plate adopted the mutual overlap joint mode to exist and hang down, horizontal wholeness is relatively poor, longitudinal rigidity is not enough etc. defects, especially when the span exceeds certain limit, the bulk rigidity of the shaping earthing corrugated steel plate bridge of being under construction can satisfy the demand.

6. The vertical retaining wall has the advantages of simple structure, reasonable design, simple and convenient construction and lower input cost.

7. The concrete block with the reinforcement holes is processed and formed in advance, so that the processing quality can be effectively ensured, and the construction quality of the vertical retaining wall can be ensured. Compared with the existing joint bar and concrete pouring to form the whole block retaining wall, the construction is more convenient, and the construction quality is easy to guarantee.

8. The adopted vertical retaining wall is simple and convenient to construct on site, dry building is adopted between two adjacent concrete blocks from top to bottom, two adjacent concrete blocks from top to bottom only need to be piled up, mortar is not needed for fixing, labor and time are saved, material cost can be saved, later reconstruction and demolition of the retaining wall are simple and convenient, any damage to the concrete blocks can not be caused, the concrete blocks can be repeatedly used, and the concrete retaining wall is economical and environment-friendly.

9. The vertical retaining wall has the advantages that the using effect is good, the practical value is high, N layers of concrete blocks are fastened and connected into a whole through N-1 rows of tie bars, splicing seams of two adjacent layers of concrete blocks are arranged in a staggered mode, the two adjacent concrete blocks are fixedly connected through one tie bar, the integrity of the retaining wall formed by stacking can be ensured, lower bars of all the tie bars are buried in segments and upper bars are buried in segments and buried in earth filling layers, the stability and the reliability of the retaining wall can be effectively ensured, the construction efficiency is improved, and the construction cost is saved.

10. Good and practical value of result of use is high, piles up the vertical retaining wall of multilayer pre-processing fashioned concrete block from top to bottom to all bury underground in the intraformational tie bar area fixed connection of filling up through one with upper and lower adjacent two concrete blocks, can effectively ensure the wholeness and the steadiness of construction shaping barricade, and the retaining wall later stage rebuilds and demolishs all very portably, but concrete block reuse, economic environmental protection. Meanwhile, when the vertical retaining wall is constructed, the construction of a gravel pavement layer and a soil filling layer can be synchronously completed, the construction is simple and convenient, the construction period is short, the embedded sections of the geotechnical reinforcement belt embedded in the gravel pavement layer are all poured in the constructed and formed gravel grouting filling layer, the embedded sections of the geotechnical reinforcement belt are fixed firmly and stably, the integrity and the stability of the vertical retaining wall can be effectively ensured, the embedded sections of the geotechnical reinforcement belt embedded in the gravel grouting filling layer can effectively improve the connection strength and the connection quality of the gravel grouting filling layer and the vertical retaining wall, the support strength and the compressive strength of the gravel grouting filling layer can be effectively improved, the integrity and the overall rigidity of the constructed and formed soil covering corrugated steel plate bridge are ensured, the construction quality of the whole bridge is ensured, and the bearing capacity of the corrugated steel plate bridge can be effectively improved. .

To sum up, the utility model has the advantages of simple structure, reasonable design, simple and convenient construction and good use effect, adopts the gravel grouting filling layer positioned outside the arch ring to reinforce the arch ring, adopts a plurality of supporting steel bars fixed in the gravel grouting filling layer to form a supporting frame to support and position a grouting pipeline, is simple, convenient and firm to fix, can greatly simplify the construction process of the gravel grouting filling layer and ensure the construction quality of the gravel grouting filling layer, and does not need to be dismantled in the later period of the supporting frame; meanwhile, the gravel grouting filling layer and the filling soil layer are uniformly distributed between the two vertical retaining walls, so that the construction is simple, convenient and quick, and the construction quality of the constructed soil covering corrugated steel plate bridge can be ensured.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic view of the longitudinal bridge structure of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic diagram of the layout position of a grouting pipeline on an arch ring of the present invention.

Fig. 4 is the schematic diagram of the layout position of the grouting pipe of the present invention.

Fig. 5 is the utility model discloses the position schematic diagram of laying of layering of filling out among broken stone pavement layer arch top filling layer and the arch ring outside filling layer and the filled layer.

Fig. 6 is a schematic structural view of the grouting pipe of the present invention.

Fig. 7 is a schematic structural diagram of the connecting pipe of the present invention.

Fig. 8 is a schematic structural view of the elbow pipe of the present invention.

Fig. 9 is the pavement state schematic diagram of the gravel pavement layer of the utility model.

Fig. 10 is the splicing state diagram of the corrugated steel plate splicing block in the arch ring of the present invention.

Fig. 11 is the plane structure schematic diagram of the supporting steel bar, grouting pipeline, arch ring, vertical retaining wall and concrete foundation of the utility model.

Fig. 12 is a schematic structural view of the vertical baffle wall of the present invention.

Fig. 13 is a schematic side structure view of the vertical retaining wall of the present invention.

Fig. 14 is a schematic structural view of the cuboid block of the present invention.

Fig. 15 is a schematic structural view of the upper and lower lacing tapes of the present invention.

Fig. 16 is a schematic structural view of the top lacing wire band of the present invention.

Description of reference numerals:

1-concrete foundation; 2, filling a soil layer; 3-arch ring;

4-gravel grouting filling layer; 5-grouting a pipeline; 5-1-grouting pipe;

5-2-connecting pipe; 5-3-bending the pipe; 6-corrugated steel plate splicing blocks;

7-fastening bolts; 8-a dome filling layer; 9-filling layer outside the arch ring;

10-filling and layering; 11-a base mat layer; 13-pulling the ribbed belt;

13-1-lower rib belt; 13-2, putting a rib belt; 13-3-vertical connecting rib belts;

14-1-cuboid building blocks; 14-2-processing the building block; 15-the ribs are provided with holes;

16-supporting the reinforcing steel bars; and 17, forming a vertical retaining wall.

Detailed Description

As shown in fig. 1, fig. 2, fig. 3 and fig. 11, the present invention includes two front and back concrete foundations 1, an arch ring 3 erected above the two concrete foundations 1, two vertical retaining walls 17 symmetrically arranged left and right, a gravel grouting filling layer 4 arranged on the arch ring 3, and a filling layer 2 covering the outside of the gravel grouting filling layer 4, wherein the two concrete foundations 1 are both horizontally arranged and arranged on the same horizontal plane, and the two concrete foundations 1 are both arranged in parallel and arranged along the transverse bridge direction; the gravel grouting filling layer 4 is arranged between the arch ring 3 and the filling layer 2, and the bottoms of the front side and the rear side of the gravel grouting filling layer 4 are supported on one concrete foundation 1; the arch ring 3 is formed by bending corrugated steel plates, the front end and the rear end of the arch ring are supported on one concrete foundation 1, and the gravel grouting filling layer 4 is an arch filling layer; the two vertical retaining walls 17 are arranged in parallel and are arranged along the longitudinal bridge direction, the two vertical retaining walls 17 are respectively arranged above the left side and the right side of the arch ring 3, and the gravel grouting filling layer 4 and the filling layer 2 are both positioned between the two vertical retaining walls 17;

the gravel grouting filling layer 4 comprises a gravel pavement layer paved on the arch ring 3 and supporting frames arranged in the gravel pavement layer, the bottoms of the front side and the rear side of the gravel pavement layer are supported on one concrete foundation 1, and the cross section of the gravel pavement layer is arched; a front grouting pipeline and a rear grouting pipeline 5 are symmetrically arranged in the gravel pavement layer, and each grouting pipeline 5 is in a rectangular waveform; each grouting pipeline 5 comprises a plurality of horizontally arranged grouting pipes 5-1, the plurality of grouting pipes 5-1 are arranged from bottom to top along the contour line of the arch ring 3 and are arranged along the transverse bridge direction, the lengths of the plurality of grouting pipes 5-1 are the same, and two adjacent grouting pipes 5-1 are connected through a connecting pipe 5-2; the grouting pipe 5-1 and the connecting pipe 5-2 are straight steel pipes, and the pipe wall of each grouting pipe 5-1 is provided with a plurality of grouting holes; one grouting pipe 5-1 positioned at the lowest position in each grouting pipeline 5 is a lower grouting pipe, one end of the lower grouting pipe is connected with the connecting pipe 5-2, and the other end of the lower grouting pipe is a grouting opening;

the supporting frame is fixed on the arch ring 3 and comprises a plurality of supporting reinforcing steel bars 16 which are arranged on the same plane from left to right, the structure and the size of the plurality of supporting reinforcing steel bars 16 are the same, the plurality of supporting reinforcing steel bars 16 are arranged along the longitudinal bridge direction, and each supporting reinforcing steel bar 16 is arched and has the same shape as the cross section of the arch ring 3; each grouting pipe 5-1 in the two grouting pipelines 5 is supported on a plurality of supporting steel bars 16, and each grouting pipe 5-1 is fixedly connected with the plurality of supporting steel bars 16; the front and the rear grouting pipelines 5 are positioned on the outer sides of the support frame;

the support frame and two grouting pipelines 5 are buried in the gravel pavement layer. The gravel grouting filling layer 4 is a grouting filling layer formed after grouting is carried out on the gravel pavement layer through two grouting pipelines 5.

In this embodiment, the span (i.e. the longitudinal bridge length) of the arch ring 3 is greater than 20m, and the transverse bridge width of the arch ring 3 is greater than 50 m. And the span of the arch ring 3 is smaller than the transverse bridge width of the arch ring 3. During actual construction, the span of the arch ring 3 can be larger than 50m, and the transverse bridge width can be larger than 100m, so that the application range is wide.

In this embodiment, the upper surfaces of the soil filling layer 2 and the two vertical retaining walls 17 are horizontal surfaces. Wherein, the upper surface of the soil filling layer 2 is flush with the upper surface of the vertical retaining wall 17 or higher than the upper surface of the vertical retaining wall 17.

In this embodiment, the plurality of grouting holes on each grouting pipe 5-1 are all round holes and have the same aperture, and the plurality of grouting holes on each grouting pipe 5-1 are uniformly distributed and arranged in a quincunx manner.

In this embodiment, the outer diameter of the grouting pipe 5-1 is

And the wall thickness is 2 mm-4 mm. The diameter of the grouting hole is

In actual use, the outer diameter and the wall thickness of the grouting pipe 5-1 and the aperture of the grouting hole can be adjusted correspondingly according to specific requirements.

Referring to fig. 7 and 8, in the present embodiment, each grouting pipe 5-1 and the connecting pipe 5-2 are connected by an elbow pipe 5-3, and the elbow pipe 5-3 is L-shaped.

In order to be connected simply and reliably, the bent pipe 5-3 is connected with the grouting pipe 5-1 and the connecting pipe 5-2 in a threaded mode.

In this embodiment, both ends of each grouting pipe 5-1 and both ends of each connecting pipe 5-2 are external thread connecting sections, and both ends of each bent pipe 5-3 are internal thread connecting sections for connecting with the external thread connecting sections.

When the grouting device is actually used, the other end of the lower grouting pipe is connected with grouting equipment through a connecting pipeline. In this embodiment, the grouting equipment is a high-pressure grouting machine.

In this embodiment, the lower port of each grouting pipe 5 is the grouting port, and the upper port of each grouting pipe 5 is a sealing port.

The vertical distance between two vertically adjacent grouting pipes 5-1 in each grouting pipeline 5 is 0.3 m-0.5 m, and the vertical distance between two vertically adjacent grouting pipes 5-1 in each grouting pipeline 5 is gradually reduced from bottom to top. In this embodiment, the circumferential intervals between two adjacent grouting pipes 5-1 in each grouting pipeline 5 are the same.

During actual construction, the vertical distance between two vertically adjacent grouting pipes 5-1 in each grouting pipeline 5 can be correspondingly adjusted according to specific requirements.

As shown in FIGS. 4 and 5, each grouting pipe 5 comprises M grouting pipes 5-1, wherein M is a positive integer and M is more than or equal to 3.

The broken stone pavement layer is divided into a vault filling layer 8 and two front and rear side filling layers, wherein the vault filling layer 8 is arranged above the middle part of the arch ring 3, the two side filling layers are symmetrically arranged, the two side filling layers are connected to form a lower filling layer, and the vault filling layer 8 is positioned right above the lower filling layer; each side filling layer is divided into M arch ring outer side filling layers 9 from bottom to top, and the thickness of the arch crown filling layer 8 is 0.3-0.5M; a filling layer 9 outside the arch ring is arranged between two adjacent grouting pipes 5-1 in each grouting pipeline 5;

the upper surface of each arch ring outer side filling layer 9 is a horizontal plane, and each arch ring outer side filling layer 9 is provided with one grouting pipe 5-1.

The filling layer 2 is divided into a plurality of filling layers 10 from bottom to top, and the upper surface of each filling layer 10 is a horizontal plane. In this embodiment, the outer side of each arch ring outer side filling layer 9 is uniformly provided with one filling layer 10, and the upper surface of each arch ring outer side filling layer 9 and the upper surface of the filling layer 10 located at the outer side thereof are arranged on the same horizontal plane.

In this embodiment, M is 8. Each lateral filling layer is divided into 8 arch ring outer filling layers 9 from bottom to top, and the filling layer 2 is divided into 9 filling layers 10 from bottom to top.

During actual construction, the value of M can be adjusted correspondingly according to specific requirements.

In this embodiment, one of the grouting pipes 5-1 located at the lowermost position in each grouting pipeline 5 is a bottom grouting pipe, and the vertical distance between the bottom grouting pipe and the upper surface of the concrete foundation 1 is 0.05-0.2 m; the one grouting pipe 5-1 located at the top in each grouting pipeline 5 is a top grouting pipe which is located above one side of the middle of the arch ring 3.

During actual use, the vertical distance between the bottom grouting pipe and the upper surface of the concrete foundation 1 and the arrangement position of the top grouting pipe can be correspondingly adjusted according to specific requirements.

In this embodiment, the thickness d of the stone pavement layer is 0.5m to 1 m.

All grouting pipes 5-1 in the two grouting pipelines 5 are positioned on the same arch surface, and the arch surface where all grouting pipes 5-1 in the two grouting pipelines 5 are positioned is a grouting surface.

In the embodiment, the clear distance between the grouting surface and the arch ring 3 is d/4-d/3.

During actual construction, the thickness d of the gravel pavement layer and the clear distance between the grouting surface and the arch ring 3 can be correspondingly adjusted according to specific requirements.

In this embodiment, the concrete foundation 1 is a horizontally arranged cubic foundation. The concrete foundation 1 is a horizontal foundation for supporting the arch springing of the arch ring 3.

The corrugation direction (also called as corrugation direction) of the corrugated steel plate is the longitudinal bridge direction of the constructed soil covering corrugated bridge, and the corrugation direction of the corrugated steel plate refers to the arrangement direction of corrugations on the corrugated steel plate and also can be called as the extension direction of a wave trough or a wave crest on the corrugated steel plate.

As shown in fig. 10, the arch ring 3 is formed by splicing a plurality of corrugated steel plate splicing blocks 6, the corrugated steel plate splicing blocks 6 are rectangular, the corrugated steel plate splicing blocks 6 are arranged in multiple rows from left to right along a transverse bridge direction, each row of the corrugated steel plate splicing blocks 6 comprises a plurality of corrugated steel plate splicing blocks 6 arranged from front to back along a longitudinal bridge direction, and two adjacent corrugated steel plate splicing blocks 6 in the corrugated steel plate splicing blocks 6 are arranged in a staggered manner.

Two adjacent left and right columns of corrugated steel plate splicing blocks 6 in the arch ring 3 are fastened and connected into a whole through one column of fastening bolts 7, and each column of fastening bolts 7 comprises a plurality of fastening bolts 7 which are arranged on the same vertical surface from front to back along the longitudinal bridge direction; the two corrugated steel plate splicing blocks 6 adjacent to each other in the front and the back of each row of fastening bolts 7 are fastened and connected into a whole through a plurality of fastening bolts 7 arranged from left to right along the transverse bridge.

In this embodiment, every row corrugated steel plate splice 6 all constitutes a corrugated steel plate splice section, the arch ring 3 is by a plurality of the corrugated steel plate splice section concatenation forms, and is a plurality of the corrugated steel plate splice section is laid on same horizontal plane and its cross sectional structure and size are all the same from left to right. A plurality of corrugated steel plate splicing sections are connected to form a spliced corrugated steel plate, the left and right adjacent corrugated steel plate splicing sections are connected at the position of a wave trough of the spliced corrugated steel plate. Thus, each row of the fastening bolts 7 is located at a position of one wave trough of the spliced deck.

In this embodiment, the width of the corrugated steel plate tiles 6 in the transverse bridge direction is 0.5m to 5m, and the length of the corrugated steel plate tiles in the longitudinal bridge direction is 0.5m to 5 m.

During actual construction, the size of the corrugated steel plate splicing block 6 can be correspondingly adjusted according to specific requirements.

In this embodiment, the distance between two adjacent support bars 16 in the support frame is 5m to 8 m. During actual construction, the distance between two adjacent support steel bars 16 can be adjusted according to specific requirements.

In this embodiment, each support bar 16 is supported by a row of the fastening bolts 7; the fastening bolt 7 is a supporting bolt or a connecting bolt, the supporting bolt for supporting the supporting steel bar 16 in the fastening bolt 7, and the length of the bolt rod of the supporting bolt is greater than that of the connecting bolt.

For simple and reliable connection, the supporting steel bars 16 are connected with the bolt rods of the supporting bolts in a welding mode, and the grouting pipes 5-1 are connected with the supporting steel bars 16 supported by the grouting pipes in a welding mode.

In this embodiment, the grouting pipe 5-1 is a steel perforated pipe, a plurality of grouting holes are formed in the pipe wall of the grouting pipe, and the connecting pipe 5-2 is a steel pipe.

A plurality of embedded parts for fixing the arch rings 3 are embedded in each concrete foundation 1, and the embedded parts are distributed from left to right along the transverse bridge. In this embodiment, the embedded parts are embedded bolts vertically arranged, and the arch ring 3 is fastened and fixed on the concrete foundation 1 through the embedded bolts.

In this embodiment, the gravel pavement layer is a pavement layer formed by paving gravel on the arch ring 3, and the particle size of the gravel is 5 mm-20 mm. And each arch ring outer filling layer 9 is a paving layer formed by paving broken stones.

In this embodiment, M is 8. During actual construction, the value of M and the arrangement position of each grouting pipe 5-1 in the grouting pipeline 5 can be correspondingly adjusted according to specific requirements.

Each side filling layer comprises 8 arch ring outer side filling layers 9, the 8 arch ring outer side filling layers 9 are respectively a first filling layer, a second filling layer, a third filling layer, a fourth filling layer, a fifth filling layer, a sixth filling layer, a seventh filling layer and an eighth filling layer from bottom to top, and one grouting pipe 5-1 is uniformly distributed on each arch ring outer side filling layer 9. In this embodiment, the first filling layer has a thickness of 0.05m to 0.2 m. The layer thickness of each arch ring outer filling layer 9 except the first filling layer in each side filling layer is 0.3-0.5 m.

In this embodiment, the two vertical retaining walls 17 have the same structure and size;

as shown in fig. 12 and 13, each vertical retaining wall 17 is a vertical retaining wall formed by stacking N layers of concrete blocks from bottom to top, the concrete blocks are concrete precast blocks, wherein N is a positive integer and N is greater than or equal to 3; the thickness of each layer of the concrete blocks is the same, each layer of the concrete blocks comprises a plurality of concrete blocks which are distributed on the same horizontal plane from left to right, and the concrete blocks in two layers of the concrete blocks which are adjacent up and down are distributed in a staggered manner; the N layers of concrete building blocks are fastened and connected into a whole through N-1 rows of tie bar belts 13 arranged from bottom to top, and the N-1 rows of tie bar belts 13 form a building block tie system; each row of the tie bar belts 13 comprises a plurality of tie bar belts 13 which are arranged on the same horizontal plane from left to right, two adjacent layers of the concrete blocks are fixed into a whole through one row of the tie bar belts 13, and the two adjacent layers of the concrete blocks are connected into a whole through one tie bar belt 13;

each of the tie bars 13 is U-shaped, each of the tie bars 13 is formed by connecting a lower bar 13-1, an upper bar 13-2 positioned right above the lower bar 13-1 and a vertical connecting bar 13-3 connected between the outer end of the lower bar 13-1 and the outer end of the upper bar 13-2, the lower bar 13-1, the upper bar 13-2 and the vertical connecting bar 13-3 in each of the tie bars 13 are uniformly distributed on the same vertical plane, and the three are reinforced bars;

all the lower rib belts 13-1 in the building block drawknot system are horizontally arranged, all the upper rib belts 13-2 of each row of the drawknot rib belts 13 in the building block drawknot system are uniformly distributed on the same plane, and all the vertical connecting rib belts 13-3 in the building block drawknot system are vertically arranged and uniformly distributed on the same vertical plane; each concrete block is horizontally arranged, each concrete block is provided with a rib belt hole 15 for a vertical connecting rib belt 13-3 to penetrate through, each rib belt hole 15 is a vertical through hole, and each vertical connecting rib belt 13-3 penetrates through a rib belt hole 15 formed in two adjacent concrete blocks;

the section of the lower reinforcement belt 13-1, which is positioned on the inner side of the vertical retaining wall, is a lower reinforcement belt embedding section, and the section of the upper reinforcement belt 13-2, which is positioned on the inner side of the vertical retaining wall, is an upper reinforcement belt embedding section; the lower reinforcement belt embedding segment and the upper reinforcement belt embedding segment are both segments embedded in a filling layer 2 or a gravel grouting filling layer 4.

In this embodiment, the length of each vertical connecting rib belt 13-3 is the same as the total height of the rib belt hole 15 in the two adjacent concrete blocks which are penetrated by the vertical connecting rib belt.

The width of all concrete blocks in the vertical retaining wall all with the thickness of vertical retaining wall is the same, lateral wall about the vertical retaining wall with around the lateral wall be vertical to the lateral wall, the lateral wall is right around the vertical retaining wall the vertical lateral wall that forms after the concrete block 2 of both sides cuts around the vertical retaining wall.

In this embodiment, N is 14.

During actual construction, the value of N can be correspondingly adjusted according to specific requirements.

As shown in fig. 15 and 16, in the present embodiment, the lower bead band 13-1, the upper bead band 13-2 and the vertical connecting bead band 13-3 of each of the tie bead bands 13 are integrally formed.

In this embodiment, the reinforced belt is a geotechnical reinforced belt (i.e., geotechnical reinforced belt).

Moreover, each tie bar belt 13 is a through long geotechnical bar belt, so that the two adjacent concrete blocks are fastened and tied into a whole.

During actual use, the upper rib belt embedding sections and the lower rib belt embedding sections of all the tie rib belts 13 in the building block tie system are embedded in the filler layer 2, so that all the tie rib belts 13 are fixed in the filler layer 2, all the concrete building blocks in the building block tie system can be fastened and connected into a whole, and the integrity and the stability of the vertical retaining wall are further ensured. On the other hand, the soil retaining effect of the vertical soil retaining wall on the fill 2 can be further enhanced.

The soil filling layer 2 is a compacted soil layer, so that all concrete building blocks in the building block tie system can be further ensured to be fastened and connected into a whole. In this embodiment, the soil filling layer 2 is a sand filling layer.

As shown in fig. 12, N-1 rows of the tie bar belts 13 are arranged in multiple rows from front to back along the length direction of the vertical retaining wall, and each row of the tie bar belts 13 includes multiple tie bar belts 13 arranged on the same vertical surface from top to bottom.

In this embodiment, the uppermost row of tie bar belts 13 in the block tie system is a top tie bar belt, the row of tie bar belts 13 below and adjacent to the top tie bar belt in the block tie system is an upper tie bar belt, and each row of tie bar belts 13 below the upper tie bar belt in the block tie system is a lower tie bar belt;

the upper rib belts 13-2 of all the upper tie rib belts in the building block tie system are horizontally arranged, and the upper rib belts 13-2 of all the lower tie rib belts in the building block tie system are horizontally arranged; the upper reinforcement belts 13-2 of all the top tie reinforcement belts in the building block tie system are gradually inclined downwards from outside to inside, and the inner ends of the upper reinforcement belts 13-2 of all the top tie reinforcement belts are fixed on one upper tie reinforcement belt positioned right below the top tie reinforcement belts, which is shown in detail in fig. 12, 15 and 16.

Because the inner end of the upper rib belt 13-2 of each top lacing rib belt is fixed on the upper lacing rib belt which is positioned right below the upper lacing rib belt, the inner end of the upper rib belt 13-2 of each top lacing rib belt is fixedly connected with the upper rib belt 13-2 of the upper lacing rib belt which is positioned right below the upper lacing rib belt into a whole, each top lacing rib belt is connected with the upper lacing rib belt which is positioned right below the upper lacing rib belt into a whole, and the fixing effect of each top lacing rib belt in the soil filling layer 2 is ensured. Meanwhile, as the upper soil layer of the filling layer 2 is easy to damage, after the inner ends of the upper rib belts 13-2 of the top tie rib belts are all fixed on one upper tie rib belt positioned right below the upper tie rib belt, the influence on the fixing firmness of the upper rib belts 13-2 of the top tie rib belts caused by the damaged upper soil layer of the filling layer 2 can be effectively reduced or even avoided, and the top tie rib belts are ensured to be fixed more firmly.

In this embodiment, the lengths of the lower reinforcement belt embedding section and the upper reinforcement belt embedding section are not less than 5D, where D is the thickness of the vertical retaining wall, so that the reliable fixation of the tie reinforcement belt 13 in the soil filling layer 2 can be further ensured.

The concrete foundations 1 are horizontally arranged, and the bottoms of the front side and the rear side of each vertical retaining wall are supported on one concrete foundation 1;

an arched cushion layer is arranged between each vertical retaining wall and the arch ring 3 in a padded mode, a horizontal cushion layer is arranged between each vertical retaining wall and each concrete foundation 1 in a padded mode, the front side and the rear side of each arched cushion layer are respectively provided with one horizontal cushion layer, and each arched cushion layer is connected with the horizontal cushion layers arranged on the front side and the rear side of the arched cushion layer to form a foundation cushion layer 11; the arched cushion layer and the horizontal cushion layer are both concrete cushion layers.

In this embodiment, the concrete foundation 1 is a horizontally arranged cubic foundation. The concrete foundation 1 is a horizontal foundation for supporting the arch springing of the arch ring 3.

Fill layer 2 and rubble slip casting filling layer 4 all are located two between the vertical retaining wall, the width of fill layer 2 and rubble slip casting filling layer 4 all with two clear distance between the vertical retaining wall is the same.

In the embodiment, the concrete blocks are cuboid blocks 14-1 or processed blocks 14-2, all the concrete blocks in the vertical retaining wall, which are in contact with the arched cushion layer, are processed blocks 14-2, and all the concrete blocks in the vertical retaining wall except the processed blocks 14-2 are cuboid blocks 14-1; the contact surface of the processed building block 14-2, which is in contact with the arched cushion layer, is a cushion layer contact surface, and the processed building block 14-2 is a building block which is used for processing the cuboid building block 14-1 and obtaining the cushion layer contact surface.

As shown in fig. 14, all the cuboid blocks 14-1 in the vertical retaining wall have the same structure and size, each cuboid block 14-1 is symmetrically provided with a front rib belt hole 15 and a rear rib belt hole 15, the two rib belt holes 15 are both located on the longitudinal central axis of the cuboid block 14-1, the distance between the two rib belt holes 15 is L/2, wherein L is the longitudinal length of the cuboid block 14-1.

Actually, when the cuboid building block 14-1 is prefabricated, two through rib belt holes 15 are reserved on the cuboid building block 14-1.

In this embodiment, the cross section of the rib hole 15 is square. Therefore, the tie bar belt 13 is limited through the bar belt hole 15, the tie bar belt 13 can be prevented from rotating randomly in the bar belt hole 15, and the connecting effect between the two adjacent concrete building blocks is further ensured.

In actual processing, the tendon band hole 15 can also be a through hole with other shapes, for example, a through hole with a circular cross section, and only the requirement of penetrating the lacing tendon band 13 can be met.

During actual construction, the two concrete foundations 1 are respectively constructed, an arch ring 3 is erected between the two concrete foundations 1, and the bottoms of the front side and the rear side of the arch ring 3 are supported on one concrete foundation 1; then, fixing a plurality of supporting steel bars 16 on the erected arch ring 3 respectively; treat in the support frame multichannel the equal fixed back of accomplishing of supporting reinforcement 16, to two slip casting pipeline 5 is installed respectively, and makes every each slip casting pipe 5-1 in the slip casting pipeline 5 all fixed stay in on the support frame, through the support frame is to two slip casting pipeline 5 supports and fixes a position, and is not only fixed simple and convenient to it is fixed firm, can ensure in rubble layer of pavement process, the 2 work progress of filling up layer and the slip casting process the position of slip casting pipeline 5 is all fixed motionless, ensures the construction quality and the slip casting effect of rubble slip casting filling layer 4.

In the process of fixing the supporting steel bars 16 and in the process of installing the grouting pipeline 5, a layer of arched cushion layer is respectively constructed on the upper parts of the left side and the right side of the arch ring 3, a layer of horizontal cushion layer is constructed on the upper parts of the left side and the right side of the two concrete foundations 1, and each arched cushion layer is connected with the horizontal cushion layers arranged on the front side and the rear side of the arched cushion layer to form a foundation cushion layer 11. The support frame is located between two foundation mats 11, and two grouting pipes 5 are located between two foundation mats 11.

Treat two equal installation of slip casting pipeline 5 is accomplished and two after foundation mat 11 all is under construction, to two vertical barricade 17 carries out the symmetry construction. And, the construction method of the two vertical retaining walls 17 is the same. When any vertical retaining wall 17 is constructed, concrete blocks are built on the foundation mat 11 from bottom to top in a layered mode, and splicing seams between the concrete blocks are arranged in a staggered mode. In the process of laying concrete blocks from bottom to top in a layered mode, two adjacent concrete blocks are fastened and connected into a whole through a tie bar belt 13 penetrating through a bar hole 15 until the vertical retaining wall is laid.

In this embodiment, two vertical retaining walls 17 are constructed symmetrically, and the gravel pavement layer is paved synchronously from bottom to top, and the filling layer 2 is constructed synchronously from bottom to top. The lower rib belt embedded segment of the lower rib belt 13-1 and the upper rib belt embedded segment of the upper rib belt 13-2 in each of the two tie rib belts 13 of the vertical retaining wall 17 are all embedded in a filling layer 2 or a gravel grouting filling layer 4, and the vertical retaining wall is kept stable by means of the friction force between the lower rib belt embedded segment in the tie rib belt 13 and the upper rib belt embedded segment and the filling layer 2 or the gravel grouting filling layer 4. Wherein, the lower reinforcement belt embedding segment of the lower reinforcement belt 13-1 and the upper reinforcement belt embedding segment of the upper reinforcement belt 13-2 in each tie reinforcement belt 13 are geotechnical reinforcement belt embedding segments. After the construction is accomplished, bury underground in the intraformational geotechnique's muscle area buries the festival section underground and all pours in construction fashioned rubble slip casting filling layer 4, the geotechnique's muscle area buries the festival section underground and fixes firmly, firm, can effectively ensure the wholeness and the steadiness of vertical barricade 17 bury underground simultaneously in rubble slip casting filling layer 4 the geotechnique's muscle area buries the festival section underground and can effectively improve the joint strength and the joint quality of rubble slip casting filling layer 4 and vertical barricade 17 to can effectively improve the support strength and the compressive strength of rubble slip casting filling layer 4, ensure the construction quality of the shaping earthing corrugated steel plate bridge of being under construction. And, multichannel in the support frame supporting reinforcement 16 and two slip casting pipeline 5 all pour in rubble slip casting filling layer 4, can further improve rubble slip casting filling layer 4's wholeness, support strength and compressive strength, upwards carry out the wholeness reinforcement to arch ring 3 from horizontal bridge to and vertical bridge, can effectively solve the corrugated steel plate and adopt the horizontal connection rigidity that mutual overlap joint mode exists low, horizontal wholeness is relatively poor, longitudinal rigidity is not enough etc. defect, especially when the span exceeds certain limit, the holistic rigidity of the shaping earthing corrugated steel plate bridge of being under construction can satisfy the demand.

In this embodiment, when the gravel pavement layer is paved, the two side filling layers are symmetrically paved, and each grouting pipeline 5 is uniformly distributed in one side filling layer. Before the gravel pavement layer is paved, the two grouting pipelines 5 are installed and fixed firmly, so that the pavement process of the gravel pavement layer can be greatly simplified, and the construction period is saved. In addition, the grouting pipeline 5 is installed before the gravel pavement layer is paved, so that the grouting pipeline 5 is simple and quick to install, the accuracy of the installation position of the grouting pipeline 5 can be conveniently ensured, and the grouting effect of the grouting pipeline 5 is ensured.

As shown in fig. 9, when actually laying any one of the side filling layers, 8 of the side filling layers, namely, the outer filling layers 9 of the arch ring, are laid from bottom to top. And after the two side filling layers are paved, paving the arch top filling layer 8, and completing the paving process of the gravel paving layer to obtain the paved gravel paving layer. Each grouting pipe 5-1 in each grouting pipeline 5 is horizontally embedded in the gravel pavement layer, and the grouting pipes 5-1 are arranged close to the arch rings 3.

In the embodiment, in the process of paving the gravel pavement layer from bottom to top, the filling layer 2 is constructed from bottom to top synchronously; and, the two vertical retaining walls 17 are constructed from bottom to top simultaneously.

And when the filling layer 2 is constructed, filling the filling layer 2 layer by layer from bottom to top and tamping. During actual construction, after the gravel pavement layer is paved, filling and compacting are carried out on the outer side of the gravel pavement layer from bottom to top, and the fill layer 2 is obtained.

And when the thickness of the filled soil above the middle part of the arch ring 3 is not less than 1m, grouting (also called grouting) is synchronously performed to the interior of the gravel pavement layer by adopting the grouting equipment and through the two grouting pipelines 5, and the grouting pressure (also called grouting pressure) is 1 MPa-3 MPa. During actual construction, the grouting pressure can be correspondingly adjusted according to specific requirements. In this embodiment, the upper surface of the filling layer 2 is a horizontal surface, and the slurry pressed into the gravel pavement layer through the two grouting pipes 5 is cement mortar. When actual grouting is performed, the grouting liquid can be cement and water glass double-liquid grouting.

Wherein the cement mortar is the cement mortar which is conventionally used in the field of construction. Cement mortar is a mortar prepared from cement, fine aggregate (usually sand) and water as required, and the 1: 3 cement mortar is prepared from 1 weight of cement and 3 weight of sandThe components of water are neglected in practice, the proportion of water is about 0.6, namely cement mortar is formed by uniformly mixing cement, fine aggregate (usually sand) and water according to the weight ratio of 1: 3: 0.6, and the density of the cement mortar is 2000kg/m³. The cement and water glass double-liquid slurry is a cement-water glass double-liquid slurry which is conventionally used in the field of buildings.

During actual construction, also can wait to fill 2 construction in soil layer and accomplish the back, adopt grouting equipment just through two grouting pipe 5 in step to the rubble is mated formation and is built the inside mud jacking that carries on of layer.

And after the soil filling of the soil filling layer 2 is finished and the slurry pressed into the gravel pavement layer is solidified synchronously through the two grouting pipelines 5, completing the construction process of the soil covering corrugated steel plate bridge.

And in the process of symmetrically paving the two side filling layers, the filling layer 2 is synchronously constructed from bottom to top, and when any one of the two side filling layers, namely the arch ring outer side filling layer 9, is paved from bottom to top, the filling layer 10 outside the arch ring outer side filling layer 9 is constructed from bottom to top.

The grouting pipeline 5 is reasonable in structural design, simple and convenient to arrange and convenient to connect, and grouting pipes 5-1 are uniformly distributed in each area in the gravel pavement layer. After the two grouting pipelines 5 are buried, grouting can be simply, conveniently and quickly performed in the gravel pavement layer, and the grouting effect can be ensured by reinforcing each region in the gravel pavement layer through grouting liquid.

In this embodiment, the lower parts of the front and rear sides of one of the vertical retaining walls 17 are respectively provided with a through hole for the connection pipeline to pass through; and after the two grouting pipelines 5 are completely grouted, pulling out the connecting pipeline from the lower part of the vertical retaining wall 17, and plugging the through hole.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims (10)

1. The utility model provides an earthing ripple steel sheet bridge based on supporting reinforcement which characterized in that: the concrete foundation comprises a front concrete foundation (1), a rear concrete foundation (1), an arch ring (3) erected above the two concrete foundations (1), a left vertical retaining wall (17) and a right vertical retaining wall (17) which are symmetrically arranged, a gravel grouting filling layer (4) arranged on the arch ring (3) and a filling layer (2) covering the outside of the gravel grouting filling layer (4), wherein the two concrete foundations (1) are horizontally arranged and are arranged on the same horizontal plane, and the two concrete foundations (1) are arranged in parallel and are arranged along the transverse bridge direction; the gravel grouting filling layer (4) is arranged between the arch ring (3) and the filling layer (2), and the bottoms of the front side and the rear side of the gravel grouting filling layer (4) are supported on one concrete foundation (1); the arch ring (3) is formed by bending corrugated steel plates, the front end and the rear end of the arch ring are supported on one concrete foundation (1), and the gravel grouting filling layer (4) is an arch filling layer; the two vertical retaining walls (17) are arranged in parallel and are arranged along the longitudinal bridge direction, the two vertical retaining walls (17) are respectively arranged above the left side and the right side of the arch ring (3), and the gravel grouting filling layer (4) and the filling layer (2) are both positioned between the two vertical retaining walls (17);

the gravel grouting filling layer (4) comprises a gravel pavement layer paved on the arch ring (3) and supporting frames arranged in the gravel pavement layer, the bottoms of the front side and the rear side of the gravel pavement layer are supported on one concrete foundation (1), and the cross section of the gravel pavement layer is arched; a front grouting pipeline and a rear grouting pipeline (5) are symmetrically arranged in the gravel pavement layer, and each grouting pipeline (5) is rectangular; each grouting pipeline (5) comprises a plurality of horizontally arranged grouting pipes (5-1), the plurality of grouting pipes (5-1) are arranged from bottom to top along the contour line of the arch ring (3) and are arranged along the transverse bridge direction, the lengths of the plurality of grouting pipes (5-1) are the same, and two vertically adjacent grouting pipes (5-1) are connected through a connecting pipe (5-2); the grouting pipes (5-1) and the connecting pipes (5-2) are straight steel pipes, and the pipe wall of each grouting pipe (5-1) is provided with a plurality of grouting holes; one grouting pipe (5-1) positioned at the lowest position in each grouting pipeline (5) is a lower grouting pipe, one end of each lower grouting pipe is connected with the connecting pipe (5-2), and the other end of each lower grouting pipe is a grouting opening;

the supporting frame is fixed on the arch ring (3), the supporting frame comprises a plurality of supporting reinforcing steel bars (16) which are arranged on the same plane from left to right, the structure and the size of the plurality of supporting reinforcing steel bars (16) are the same, the plurality of supporting reinforcing steel bars (16) are arranged along the longitudinal bridge direction, and each supporting reinforcing steel bar (16) is arched and has the same shape as the cross section of the arch ring (3); each grouting pipe (5-1) in the two grouting pipelines (5) is supported on a plurality of supporting steel bars (16), and each grouting pipe (5-1) is fixedly connected with the plurality of supporting steel bars (16); the front and the rear grouting pipelines (5) are positioned outside the support frame;

the support frame and the two grouting pipelines (5) are buried in the gravel pavement layer.

2. The earth-covered corrugated steel slab bridge based on supporting steel bars as claimed in claim 1, wherein: the other end of the lower grouting pipe is connected with grouting equipment through a connecting pipeline, and the two grouting pipelines (5) are rectangular corrugated pipelines for injecting cement mortar into the gravel pavement layer.

3. A soil-covered corrugated steel deck bridge based on support reinforcing bars as defined in claim 1 or 2, wherein: the arch ring (3) is formed by splicing a plurality of corrugated steel plate splicing blocks (6), the corrugated steel plate splicing blocks (6) are rectangular, the corrugated steel plate splicing blocks (6) are distributed in a plurality of rows from left to right along a transverse bridge direction, each row of corrugated steel plate splicing blocks (6) comprises a plurality of corrugated steel plate splicing blocks (6) distributed from front to back along a longitudinal bridge direction, and the corrugated steel plate splicing blocks (6) in two adjacent rows of the corrugated steel plate splicing blocks (6) are distributed in a staggered mode;

two adjacent columns of corrugated steel plate splicing blocks (6) on the left and right in the arch ring (3) are all fastened and connected into a whole through one column of fastening bolts (7), and each column of fastening bolts (7) comprises a plurality of fastening bolts (7) which are arranged on the same vertical surface from front to back along the longitudinal bridge direction; the two corrugated steel plate splicing blocks (6) which are adjacent to each other in the front and the back of each row of fastening bolts (7) are fastened and connected into a whole through a plurality of fastening bolts (7) which are distributed from left to right along the transverse bridge.

4. A soil-covered corrugated steel deck bridge based on support reinforcing bars as defined in claim 3, wherein: each supporting steel bar (16) is supported on one row of fastening bolts (7); the fastening bolt (7) is a supporting bolt or a connecting bolt, the supporting bolt used for supporting and supporting the reinforcing steel bar (16) in the fastening bolt (7) has a bolt rod length larger than that of the connecting bolt.

5. The earth-covered corrugated steel slab bridge based on supporting steel bars as claimed in claim 4, wherein: the grouting pipe (5-1) is a steel perforated pipe, a plurality of grouting holes are formed in the pipe wall of the grouting pipe, and the connecting pipe (5-2) is a steel pipe;

the supporting steel bars (16) are connected with the bolt rods of the supporting bolts in a welding mode, and the grouting pipes (5-1) are connected with the supporting steel bars (16) supported by the grouting pipes in a welding mode.

6. A soil-covered corrugated steel deck bridge based on support reinforcing bars as defined in claim 1 or 2, wherein: the two vertical retaining walls (17) have the same structure and size;

each vertical retaining wall (17) is a vertical retaining wall formed by piling N layers of concrete blocks from bottom to top, the concrete blocks are concrete precast blocks, wherein N is a positive integer and is more than or equal to 3; the thickness of each layer of the concrete blocks is the same, each layer of the concrete blocks comprises a plurality of concrete blocks which are distributed on the same horizontal plane from left to right, and the concrete blocks in two layers of the concrete blocks which are adjacent up and down are distributed in a staggered manner; the N layers of concrete blocks are fixedly connected into a whole through N-1 rows of tie bar belts (13) arranged from bottom to top, and the N-1 rows of tie bar belts (13) form a block tie system; each row of the tie bar belts (13) comprises a plurality of tie bar belts (13) which are arranged on the same horizontal plane from left to right, two layers of the concrete blocks which are adjacent up and down are fixed into a whole through one row of the tie bar belts (13), and two adjacent concrete blocks which are adjacent up and down are connected into a whole through one tie bar belt (13);

each tying rib belt (13) is U-shaped, each tying rib belt (13) is formed by connecting a lower rib belt (13-1), an upper rib belt (13-2) positioned right above the lower rib belt (13-1) and a vertical connecting rib belt (13-3) connected between the outer end of the lower rib belt (13-1) and the outer end of the upper rib belt (13-2), and the lower rib belt (13-1), the upper rib belt (13-2) and the vertical connecting rib belt (13-3) in each tying rib belt (13) are uniformly distributed on the same vertical plane and are all rib belts;

all lower rib belts (13-1) in the building block drawknot system are horizontally arranged, all upper rib belts (13-2) of each row of the drawknot rib belts (13) in the building block drawknot system are uniformly distributed on the same plane, and all vertical connecting rib belts (13-3) in the building block drawknot system are vertically arranged and uniformly distributed on the same vertical plane; each concrete block is horizontally arranged, each concrete block is provided with a rib belt hole (15) for a vertical connecting rib belt (13-3) to penetrate through, each rib belt hole (15) is a vertical through hole, and each vertical connecting rib belt (13-3) penetrates through a rib belt hole (15) formed in two adjacent concrete blocks;

the sections, located on the inner side of the vertical retaining wall, in the lower reinforcement belts (13-1) are lower reinforcement belt embedded sections, and the sections, located on the inner side of the vertical retaining wall, in the upper reinforcement belts (13-2) are upper reinforcement belt embedded sections; the lower rib belt embedding segment and the upper rib belt embedding segment are both segments embedded in a filling layer (2) or a gravel grouting filling layer (4).

7. The earth-covered corrugated steel slab bridge based on supporting steel bars as claimed in claim 6, wherein: the concrete foundations (1) are horizontally arranged, and the bottoms of the front side and the rear side of each vertical retaining wall are supported on one concrete foundation (1);

a layer of arched cushion layer is padded between each vertical retaining wall and the arch ring (3), a layer of horizontal cushion layer is padded between each vertical retaining wall and each concrete foundation (1), the front side and the rear side of each arched cushion layer are respectively provided with one horizontal cushion layer, and each arched cushion layer is connected with the horizontal cushion layers arranged on the front side and the rear side of the arched cushion layer to form a foundation cushion layer (11); the arched cushion layer and the horizontal cushion layer are both concrete cushion layers.

8. The earth-covered corrugated steel deck bridge based on supporting steel bars as claimed in claim 7, wherein: the concrete blocks are cuboid blocks (14-1) or processed blocks (14-2), all the concrete blocks in the vertical retaining wall, which are in contact with the arched cushion layer, are processed blocks (14-2), and all the concrete blocks in the vertical retaining wall except the processed blocks (14-2) are cuboid blocks (14-1); the contact surface of the processed building block (14-2) in contact with the arched cushion layer is a cushion layer contact surface, and the processed building block (14-2) is a building block which is used for processing the cuboid building block (14-1) and obtaining the cushion layer contact surface;

the structure and the size of all cuboid building blocks (14-1) in the vertical retaining wall are the same, each cuboid building block (14-1) is symmetrically provided with a front rib belt hole and a rear rib belt hole (15), the two rib belt holes (15) are all located on the longitudinal central axis of the cuboid building block (14-1), the distance between the two rib belt holes (15) is L/2, and L is the longitudinal length of the cuboid building block (14-1).

9. A soil-covered corrugated steel deck bridge based on support reinforcing bars as defined in claim 1 or 2, wherein: the vertical distance between two adjacent grouting pipes (5-1) in each grouting pipeline (5) is 0.3-0.5 m;

each grouting pipeline (5) comprises M grouting pipes (5-1), wherein M is a positive integer and is more than or equal to 3;

the broken stone pavement layer is divided into a vault filling layer (8) arranged above the middle part of the arch ring (3) and two front and rear side filling layers which are symmetrically arranged, the two side filling layers are connected to form a lower filling layer, and the vault filling layer (8) is positioned right above the lower filling layer; each side filling layer is divided into M arch ring outer side filling layers (9) from bottom to top, and the thickness of each arch ring outer side filling layer (8) is 0.3-0.5M; a filling layer (9) outside the arch ring is arranged between two adjacent grouting pipes (5-1) in each grouting pipeline (5);

the upper surface of each arch ring outer side filling layer (9) is a horizontal plane, and each arch ring outer side filling layer (9) is provided with one grouting pipe (5-1).

10. A soil-covered corrugated steel deck bridge based on support reinforcing bars as defined in claim 1 or 2, wherein: the gravel pavement layer is a pavement layer formed by paving gravel on the arch ring (3), and the particle size of the gravel is 5-20 mm;

the thickness of the gravel pavement layer is d, and the value range of d is 0.5-1 m;

all grouting pipes (5-1) in the two grouting pipelines (5) are positioned on the same arch surface, and the arch surfaces where all grouting pipes (5-1) in the two grouting pipelines (5) are positioned are grouting surfaces; the clear distance between the grouting surface and the arch ring (3) is d/4-d/3.

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