CN216809531U

CN216809531U - Riverbed scouring comprehensive protection structure

Info

Publication number: CN216809531U
Application number: CN202123374454.XU
Authority: CN
Inventors: 王新泉; 霍栖茜
Original assignee: Shenzhen Jianan Group Co ltd
Current assignee: Shenzhen Jianan Group Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-24
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a riverbed scouring comprehensive protection structure, which comprises a bridge abutment, a truss type construction platform, river bottom stone concrete, a steel wire gabion, a bearing platform, a river channel, an enlarged foundation template and pier studs, wherein the bridge abutment is connected with the truss type construction platform through a steel wire gabion; a truss type construction platform is erected between the bridge abutments, and the river bottom stone concrete is paved through the truss type construction platform; a steel wire gabion is arranged on the riverway around the bearing platform; installing front wall formworks on the expanded foundation at the bottom of the abutment, fixing the front wall formwork extension sections on two sides of the front wall formwork on two sides of the abutment, and pouring concrete in the formworks; three sides of the bottom of the abutment are provided with enlarged foundation templates and poured to form an enlarged foundation; the outer side of each pier column is provided with a hoop template; and a closed template is arranged at the hollowed part of the wing wall. The beneficial effects of the utility model are: when river bottom piece stone concrete construction is in need construction position top installation truss-like construction platform, can guarantee piece stone concrete construction working face demand, and then guarantee the efficiency of construction.

Description

Riverbed scouring comprehensive protection structure

Technical Field

The utility model relates to a riverbed scouring comprehensive protection structure which is mainly suitable for protection treatment construction of multiple parts of a bridge caused by river scouring.

Background

In the road construction process of China, a highway gradually extends to a western mountain area, various water flow scouring disaster conditions can be met, and the problems that the bearing capacity of a riverbed is reduced, the bottom of a pile foundation bearing platform is hollowed, one side or three sides of a bridge abutment and a foundation of the bridge abutment are eroded by water flow, the bottom of a pier column is eroded by water flow, the bottom of a wing wall is hollowed, an original retaining wall is damaged or the bearing capacity of a conical slope is insufficient, and an original conical slope forms bulges and the like can be caused by water flow scouring.

Meanwhile, abutment vehicle jumping is a common phenomenon existing in a highway, and good bridge conical slope treatment and pier reinforcement technology is an effective measure for preventing abutment vehicle jumping. According to the incomplete statistical data of related departments, the total number of the existing various bridges in China is five hundred thousand, and the number of the bridges constructed by working every year is about one thousand. However, with the change of soil environment and climate, the phenomenon of abutment vehicle jumping is more and more common, and in addition, the improper protection of the bridge makes the damage of some bridges more serious, and the maintenance frequency of the bridge is continuously increased, which greatly increases the maintenance cost. The treatment of the bridge abutment taper slope and the reinforcement of the bridge pier and the bridge abutment become the inevitable choices of a plurality of bridges. The effective taper slope processing technology and the bridge pier and abutment reinforcing technology can save subsequent maintenance cost for construction units, and the bridge can be firmer and more durable.

In view of this, a series of problems caused by long-term erosion of water flow on the riverbed can affect the bearing capacity and the service performance of the bridge, and a simple and effective riverbed scouring comprehensive protection structure is urgently needed to be invented to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a comprehensive protection structure for riverbed scouring.

The riverbed scouring comprehensive protection structure comprises a bridge abutment, a truss type construction platform, river bottom stone concrete, a steel wire gabion, a bearing platform, a riverway, an enlarged foundation template and pier studs; a truss type construction platform is erected between the bridge abutments, and the river bottom stone concrete is paved through the truss type construction platform; steel wire gabions are arranged on the riverway around the bearing platform; installing a front wall template on an expanded foundation at the bottom of the abutment, fixing front wall template extension sections on two sides of the front wall template on two sides of the abutment, and pouring concrete in the template; three sides of the bottom of the abutment are provided with enlarged foundation templates and poured to form an enlarged foundation; the outer side of the pier stud is provided with an anchor ear template; and a closed template is arranged at the hollow part of the wing wall.

Preferably, the method comprises the following steps: the river bottom stone concrete is arranged below the truss type construction platform, the dense paving plate is laid on the upper portion of the truss type construction platform, the two ends of the truss type construction platform are arranged on the bridge abutment, the steel bar planting anchor bolts are arranged at the corresponding positions of the bridge abutment, the supporting H-shaped steel is arranged on the steel bar planting anchor bolts, and wedge-shaped steel cushion blocks are arranged between the steel bar planting anchor bolts and the supporting H-shaped steel.

Preferably, the method comprises the following steps: on the river course around the cushion cap was arranged in to the steel wire gabion, the steel wire gabion outside set up light-duty steel frame, set up the wire net between light-duty steel frame, set up the reinforcing bar on the steel wire gabion, through the wire rope ligature between reinforcing bar and steel wire gabion.

Preferably, the method comprises the following steps: a reinforcing steel bar placing hole and a reinforcing steel bar reserved groove are formed in the reinforcing steel bar rapid binding and sizing jig frame, a horizontal reinforcing steel bar is placed in the reinforcing steel bar placing hole, a vertical reinforcing steel bar is placed in the reinforcing steel bar reserved groove, and the horizontal reinforcing steel bar and the vertical reinforcing steel bar are bound and fixed to form a reinforcing steel bar net; one side of the abutment is provided with a front wall anchor bar, and a reinforcing mesh is arranged on the front wall anchor bar; the bridge abutment is simultaneously provided with a front wall template embedded screw, the top surface of an expanded foundation at the bottom of the bridge abutment is provided with a front wall template expanded end, the front wall template expanded end is connected with a front wall template, the front wall template and the bridge abutment are fixed through the front wall template embedded screw, and front wall template extension sections are arranged on two sides of the front wall template.

Preferably, the method comprises the following steps: the bridge abutment is provided with pre-embedded template fixing screws and expanded foundation anchor bars, three sides of the bridge abutment are provided with expanded foundation templates, the bottom of each expanded foundation template is provided with an expanded foundation bottom die, and the expanded foundation bottom die is provided with a bottom die weight.

Preferably, the method comprises the following steps: the pier stud sets up the pier stud and plants the muscle, set up the staple bolt template on the pier stud, staple bolt template bottom sets up staple bolt template enlarged footing, and on the pier stud cushion cap was arranged in to staple bolt template enlarged footing, staple bolt template bottom set up the mud jacking hole, and the staple bolt template outside sets up annular hoop, and annular hoop both ends are equipped with the otic placode, set up fastening bolt fixed between two otic placodes.

Preferably, the method comprises the following steps: set up the closed form around the wing wall, the closed form outside sets up the template bracing, sets up the template caulking groove on the river bank, and the riverbed bottom is drawn empty the position and is set up gravel, and gravel top surface sets up cement mortar, and the cement mortar top surface sets up the stone of grout piece and paves the end.

The utility model has the beneficial effects that:

1. when the river bottom stone concrete is constructed, the truss type construction platform is arranged above the position needing construction, and the requirement of the working face of the stone concrete construction can be met.

2. When the steel wire gabion is constructed, the steel wire gabion is bound and fixed through steel bars and steel wire ropes, and a light steel section frame is arranged on the outer side, so that the problem that the gabion is washed away by water flow when the gabion is thrown and filled is solved.

3. Adopt the quick ligature bed-jig of reinforcing bar during reinforcing bar net ligature, improve the efficiency of construction, abutment outside template, basic template are established through existing structure support, guarantee construction quality.

4. The anchor ear template that can recycle is adopted in pier stud reinforcement construction, can improve the efficiency of construction.

5. When the wing wall is hollowed, the periphery of the wing wall is surrounded by the templates, and the supports are arranged, so that stones are prevented from moving when sand gravel is backfilled, and the treatment construction quality is improved.

Drawings

FIG. 1 is a view of the construction of river bottom stone concrete according to the present invention;

FIG. 2 is a schematic view of reinforcement of a steel wire gabion for riverbed throwing filling;

FIG. 3 is a schematic view of a lightweight steel frame and wire mesh installation;

FIG. 4 is a structural schematic diagram of a reinforcing steel bar rapid binding jig frame;

FIG. 5 is a schematic view of the construction of front wall anchor bars and enlarged foundation anchor bars;

FIG. 6 is a schematic view of concrete construction for single-side wrapping of the front wall of the abutment;

FIG. 7 is a schematic diagram of the construction of the outer casing of the three-side enlarged foundation of the abutment;

FIG. 8 is a schematic view of the construction of the outer covering of the enlarged section of the pier stud;

FIG. 9 is a schematic view of the wing wall undercut treatment construction;

FIG. 10 is a schematic illustration of closed form construction;

description of reference numerals: 1. abutment 2, close bed plate 3, truss type construction platform 4, river bottom stone concrete 5, bar-planting anchor bolt 6, wedge-shaped steel cushion 7, support I-steel 8, steel wire stone cage 9, reinforcing steel bar 10, bearing platform 11, light steel frame 12, river channel 13, steel wire rope 14, steel wire gauze 15, reinforcing steel bar rapid binding and sizing bed-jig 16, reinforcing steel bar placing hole 17, reinforcing steel bar preformed groove 18, front wall anchor bar 19, enlarged foundation anchor bar 20, enlarged foundation template 21, embedded template fixing screw 22, bottom die pressing block 23, enlarged foundation bottom die 24, front wall template embedded screw 25, front wall template 26, front wall template enlarged end 27, enlarged foundation 28, front wall template extended section 29 pier stud 30, pier stud embedded bar 31, annular hoop 33, fastening bolt 34, grout pressing hole 35, anchor ear template enlarged end 36, pier column bearing platform 37, ear plate 38 and stone slab laid bottom 39, anchor ear 40, gravel 41, river bed inclined support 43, river bottom inclined support 44, and concrete embedding template 59. A wing wall.

Detailed Description

The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the utility model. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

As an embodiment, the riverbed scouring comprehensive protection structure comprises a bridge abutment 1, a truss type construction platform 3, bottom stone concrete 4, a steel wire gabion 8, a bearing platform 10, a riverway 12, an enlarged foundation template 20 and pier studs 29; the river bottom sheet stone concrete 4 is paved by a truss type construction platform 3, the river channel 12 is reinforced by a cast-filling steel wire stone cage 8, the reinforcing is performed before the abutment 1 by adopting one-side expanded outsourcing concrete, the three-side foundation of the abutment 1 is reinforced by adopting three-side expanded foundation templates 20 for synchronous pouring, reinforcing steel bars of the abutment adopt reinforcing steel bars for fast binding and forming the moulding bed-jig 15, the pier stud 29 is reinforced by adopting an anchor ear template 31, and the hollowed part of the wing wall 59 is grouted by adopting a closed template 42.

As shown in fig. 1, river bottom stone concrete 4 is arranged below a truss type construction platform 3, a dense paving plate 2 is laid on the upper portion of the truss type construction platform 3, two ends of the dense paving plate are arranged on an abutment 1, a steel bar planting anchor bolt 5 is arranged at the corresponding position of the abutment 1, a supporting i-shaped steel 7 is arranged on the steel bar planting anchor bolt 5, and a wedge-shaped steel cushion block 6 is arranged between the steel bar planting anchor bolt 5 and the supporting i-shaped steel 7.

As shown in fig. 2 and 3, the steel wire gabion 8 is arranged on a river channel 12 around a bearing platform 10, a light steel frame 11 is arranged on the outer side of the steel wire gabion 8, a steel wire mesh 14 is arranged between the light steel frame 11, a steel bar 9 is arranged on the steel wire gabion 8, and a steel wire rope 13 is arranged between the steel bar 9 and the steel wire gabion 8 for binding.

As shown in fig. 4-6, the steel bar fast binding and sizing jig frame 15 is used for fast manufacturing a steel bar mesh, a steel bar placing hole 16 and a steel bar reserving groove 17 are formed in the steel bar fast binding and sizing jig frame 15, a horizontal steel bar is placed in the steel bar placing hole 16, a vertical steel bar is placed in the steel bar reserving groove 17, and the horizontal steel bar and the vertical steel bar are bound and fixed to form the steel bar mesh; one side of the bridge abutment is provided with a front wall anchor bar 18, a reinforcing mesh is installed on the front wall anchor bar 18, a front wall template embedded screw 24 is simultaneously arranged on the bridge abutment 1, the top surface of an expanded foundation 27 is provided with a front wall template expanded end 26, a front wall template 25 is connected to the front wall template expanded end 26, the front wall template 25 and the bridge abutment 1 are fixed through the front wall template embedded screw 24, and front wall template extension sections 28 are arranged on two sides of the front wall template 25.

As shown in fig. 7, the abutment 1 is provided with pre-buried template fixing screws 21 and enlarged foundation anchor bars 19, the enlarged foundation templates 20 are provided on three sides of the abutment, an enlarged foundation bottom die 23 is provided at the bottom of the enlarged foundation templates 20, and a bottom die weight 22 is provided on the enlarged foundation bottom die 23.

As shown in fig. 8, the pier stud 29 is provided with a pier stud embedded bar 30, the pier stud 29 is provided with an anchor ear template 31, the bottom of the anchor ear template 31 is provided with an anchor ear template expansion end 35, the anchor ear template expansion end 35 is arranged on a pier stud bearing platform 36, the bottom of the anchor ear template 31 is provided with a grout pressing hole 34, the outer side of the anchor ear template 31 is provided with an annular hoop 32, two ends of the annular hoop 32 are provided with ear plates 37, and two ear plates 37 are fixed by a fastening bolt 33.

As shown in fig. 9 and 10, a closed formwork 42 is arranged around the wing wall 59, formwork diagonal braces 43 are arranged outside the closed formwork 42, a formwork caulking groove 44 is arranged on the river bank, sand gravel 40 is arranged at the hollowed position of the bottom of the river bed 41, cement mortar 39 is arranged on the top surface of the sand gravel 40, and mortar flaked stone bedding 38 is arranged on the top surface of the cement mortar 39.

Claims

1. The utility model provides a riverbed erodees synthesizes protective structure which characterized in that: the construction method comprises a bridge abutment (1), a truss type construction platform (3), river bottom stone concrete (4), a steel wire gabion (8), a bearing platform (10), a river channel (12), an enlarged foundation template (20) and pier studs (29); a truss type construction platform (3) is erected between the bridge abutments (1), and the river bottom stone concrete (4) is laid through the truss type construction platform (3); a steel wire gabion (8) is arranged on the riverway (12) around the bearing platform (10); a front wall template (25) is arranged on an enlarged foundation (27) at the bottom of the abutment (1), front wall template extension sections (28) at two sides of the front wall template (25) are fixed at two sides of the abutment (1), and concrete is poured in the template; three sides of the bottom of the abutment (1) are provided with enlarged foundation templates (20) and poured to form an enlarged foundation (27); the outer side of the pier stud (29) is provided with an anchor ear template (31); the hollow part of the wing wall (59) is provided with a closed template (42).

2. The riverbed scouring integrated protection structure according to claim 1, characterized in that: truss-like construction platform (3) below sets up river bottom piece stone concrete (4), and close bed board (2) are laid on truss-like construction platform (3) upper portion, and on abutment (1) was arranged in at truss-like construction platform (3) both ends, abutment (1) relevant position set up bar planting crab-bolt (5), set up on bar planting crab-bolt (5) and support I-steel (7), set up wedge steel cushion (6) between bar planting crab-bolt (5) and support I-steel (7).

3. The riverbed scouring integrated protection structure according to claim 1, characterized in that: on river course (12) around cushion cap (10) were arranged in steel wire gabion (8), steel wire gabion (8) outside set up light-duty steel frame (11), set up wire net (14) between light-duty steel frame (11), set up reinforcing bar (9) on steel wire gabion (8), through wire rope (13) ligature between reinforcing bar (9) and steel wire gabion (8).

4. The riverbed scouring integrated protection structure according to claim 1, characterized in that: a reinforcing steel bar placing hole (16) and a reinforcing steel bar reserved groove (17) are formed in the reinforcing steel bar rapid binding and sizing jig frame (15), horizontal reinforcing steel bars are placed in the reinforcing steel bar placing hole (16), vertical reinforcing steel bars are placed in the reinforcing steel bar reserved groove (17), and the horizontal reinforcing steel bars and the vertical reinforcing steel bars are bound and fixed to form a reinforcing steel bar net; front wall anchor bars (18) are arranged on one side of the abutment (1), and reinforcing meshes are installed on the front wall anchor bars (18); the bridge abutment is provided with the front wall template embedded screw (24) on the bridge abutment (1), the top surface of an expansion foundation (27) at the bottom of the bridge abutment (1) is provided with the front wall template expansion end (26), the front wall template (25) is connected to the front wall template expansion end (26), the front wall template (25) is fixed with the bridge abutment (1) through the front wall template embedded screw (24), and the front wall template (25) is provided with the front wall template extension section (28) on two sides.

5. The riverbed scouring integrated protection structure according to claim 1, characterized in that: the bridge abutment is characterized in that pre-buried template fixing screws (21) and expanded foundation anchor bars (19) are arranged on the bridge abutment (1), expanded foundation templates (20) are arranged on three sides of the bridge abutment, an expanded foundation bottom die (23) is arranged at the bottom of each expanded foundation template (20), and a bottom die weight block (22) is arranged on each expanded foundation bottom die (23).

6. The riverbed scouring integrated protection structure according to claim 1, characterized in that: pier stud (29) set up pier stud embedded bar (30), set up staple bolt template (31) on pier stud (29), staple bolt template (31) bottom sets up staple bolt template enlarged end (35), and on pier stud cushion cap (36) was arranged in to staple bolt template enlarged end (35), staple bolt template (31) bottom set up pressure thick liquid hole (34), and staple bolt template (31) outside sets up annular hoop (32), and annular hoop (32) both ends are equipped with otic placode (37), and it is fixed to set up fastening bolt (33) between otic placode (37).

7. The riverbed scouring integrated protection structure according to claim 1, characterized in that: set up closed form (42) around wing wall (59), closed form (42) outside sets up template bracing (43), sets up template caulking groove (44) on the bank of a river, and riverbed (41) bottom is dug empty the position and is set up gravel (40), and gravel (40) top surface sets up cement mortar (39), and cement mortar (39) top surface sets up the stone of grout piece and paves end (38).