CN212077671U - Steel box culvert for bridging and fast repairing box culvert - Google Patents

Abstract

The utility model discloses a steel box culvert for box culvert bridging quick repair, which comprises three sections of steel box culvert sections which are sequentially connected along the length direction, wherein the section of each steel box culvert section is U-shaped, the steel box culvert sections positioned at the two ends are end steel box culvert sections, and the steel box culvert sections positioned at the middle part are middle steel box culvert sections; the outer end of the end steel box culvert section is provided with a butt joint, and the inner end is a connecting end; the two ends of the middle steel box culvert section are respectively jointed with the outer side face or the inner side face of the connecting end in an attaching mode, and the two ends of the middle steel box culvert section are respectively corresponding to the two ends of the connecting end, and an end water stopping structure is arranged between the connecting end and the connecting end. The utility model has the advantages that: the steel box culvert section that the width is slightly little of being convenient for is put into the steel box culvert section that the width is slightly big from the top in the top opening of steel box culvert section to accomplish the connection of the two, join in marriage the steel box culvert through three-section steel box culvert section concatenation and assemble, be convenient for transport and erection construction.

Description

Steel box culvert for bridging and fast repairing box culvert

Technical Field

The utility model belongs to the technical field of the box culvert is restoreed, concretely relates to steel box culvert structure for restoreing damaged box culvert fast.

Background

In the operation process of the urban sewage treatment system, the influence of various factors such as facility aging, geological environment change and building construction is received, the phenomena such as dislocation and cracking of box culvert expansion joints occur sometimes, the normal operation of a pipe network system is influenced, and meanwhile, the great potential safety hazard exists. Large-caliber box culverts are often used on main drain lines, are difficult to maintain, and generally do not allow for long-term water cut-off maintenance. Therefore, the damaged box culvert section needs to be quickly and emergently repaired to maintain the box culvert smooth. At present, some culvert pipe repairing technologies in use exist in the municipal construction field, and plugging materials or plugging pieces are mainly used for plugging cracks. The plugging method can achieve a good effect on smaller cracks or small culvert pipes, but for culvert pipes with large damaged areas or serious malposition, especially large-size box culverts, the plugging method is difficult to repair, or the flow passage section loss after repair is large, so that a good repair effect is difficult to obtain, and only the damaged part can be cut off and repaired by using a repair body. However, unlike the small culvert pipe, the large-caliber box culvert restoration formed by pouring concrete has the difficulty that a large-size high-strength restoration body is required, and the difficulty in processing and installing the restoration body is higher, so that the restoration structure needs to be designed reasonably to facilitate construction and installation.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve one of the above-mentioned a plurality of problems, the utility model aims to provide a steel box culvert that is used for box culvert bridging fast repair.

The technical scheme is as follows:

the steel box culvert for bridge connection and quick repair of the box culvert is characterized by comprising three sections of steel box culvert sections which are sequentially connected along the length direction, wherein the section of each steel box culvert section is U-shaped, the steel box culvert sections positioned at two ends are end steel box culvert sections, and the steel box culvert sections positioned in the middle part are middle steel box culvert sections;

the outer end of the end steel box culvert section is provided with a butt joint, and the inner end is a connecting end;

the two ends of the middle steel box culvert section are respectively jointed with the outer side face or the inner side face of the connecting end in an attaching mode, and the two ends of the middle steel box culvert section are respectively corresponding to the end water stopping structures arranged between the connecting ends.

Design more than adopting, the steel box culvert section's of width is slightly little in the steel box culvert section of being convenient for is put into the steel box culvert section of width slightly little from the top to accomplish the connection of the two, join in marriage the steel box culvert through three-section steel box culvert section concatenation and assemble, be convenient for transport and erection construction.

As a preferred technical scheme, the end water stopping structure comprises an extrusion deformation strip, the extrusion deformation strip is arranged along the annular direction of the middle steel box culvert section, the extrusion deformation strip is continuously attached to the inner surface or the outer surface of the middle steel box culvert section, and the extrusion deformation strip is clamped between the middle steel box culvert section and the opposite surface of the connecting end.

By adopting the design, after water flows into the steel box culvert, the extrusion deformation strip deforms under the action of pressure, so that the outer surface of the middle steel box culvert section and the inner surface of the end steel box culvert section are respectively attached, and the sealing effect is achieved.

As a preferred technical scheme, the extrusion deformation strip is arranged on the outer surface of the intermediate steel box culvert section;

and a positioning groove is respectively arranged along the trend of each extrusion deformation strip, the notch of each positioning groove faces the inner surface of the end steel box culvert section, the extrusion deformation strips are arranged in the positioning grooves, and the extrusion deformation strips exceed the notches of the positioning grooves and are attached to the inner surface of the end steel box culvert section.

By adopting the design, the positioning groove plays a limiting role in the extrusion deformation strip, and the contact between the extrusion deformation strip and the end steel box culvert section is not influenced.

As a preferred technical scheme, a pair of angle steels are arranged in parallel along the direction of the extrusion deformation strip, one side of each angle steel is adhered and welded on the outer surface of the middle steel box culvert section, and the other side of each angle steel is vertically arranged on the outer surface of the middle steel box culvert section;

the positioning grooves are formed by the surfaces of the pair of angle steels and the steel box culvert sections in an enclosing mode.

By adopting the design, the structure is simple, and the manufacture and the processing are convenient.

As a preferred technical scheme, the extrusion deformation strip is tubular, the outer wall of the extrusion deformation strip is respectively abutted against the groove bottom and two groove walls of the positioning groove, and the groove depth of the positioning groove is 1/3-2/3 of the outer diameter of the extrusion deformation strip.

By adopting the design, when the extrusion deformation strip with the tubular section is radially pressed, the elastic deformation of the extrusion deformation strip is gradually increased along with the pressure, the pipe wall can deform towards the inner cavity, the pipe wall is respectively attached to the surfaces of the steel box culvert sections on two sides in a plane mode, the extrusion deformation strip is limited in the positioning groove, slippage does not occur, and the water stopping effect is good.

As a preferred technical scheme, an end limiting strip is arranged on the inner surface of the inner end of the end steel box culvert section, the end limiting strip extends along the circumferential direction of the end steel box culvert section, one side of the end limiting strip is connected with the inner surface of the end steel box culvert section, and the other side of the end limiting strip faces the middle steel box culvert section;

the end limiting strip is positioned between the two positioning grooves.

Design more than adopting sets up the spacing strip of tip and plays the effect of blockking to the extrusion deformation strip, can prevent middle steel box culvert festival roll-off.

As a preferred technical scheme, the steel box culvert section comprises a bottom plate and two vertical plates, wherein the two vertical plates are respectively connected to two opposite side edges of the bottom plate;

the two vertical plates gradually expand outwards from the lower edge to the upper edge to form the steel box culvert section with the cross section being narrow at the lower part and wide at the upper part.

By adopting the design, the cross section structure with the narrow lower part and the wide upper part enables the vertical plate of the steel box culvert section to bear certain pressure, and the bottom plate is prevented from being excessively pressed under the condition that the water filling amount is kept unchanged; in addition, when middle steel box culvert festival pressurized, it wholly sinks to make the extrusion deformation strip warp, and it is more to adorn water, and the riser structure that the slope set up makes middle steel box culvert festival better with tip steel box culvert festival laminating degree, and the sealed of extrusion deformation strip is better.

As a preferred technical scheme, the cross section of the butt joint is U-shaped, the bottom of the butt joint is flush with the bottom plate of the end steel box culvert section, the upper ends of the side walls of the butt joint are respectively flush with the upper edges of the corresponding vertical plates, and triangular transition connecting plates are connected between the side walls of the butt joint and the corresponding vertical plates;

and a tight abutting plate is arranged along the outer wall of the butt joint in the annular direction and is perpendicular to the axial direction of the butt joint, the inner edge of the tight abutting plate is connected with the outer wall of the butt joint, and an end face sealing element is arranged on one face, facing the free end of the butt joint, of the tight abutting plate.

By adopting the design, the transition connection of the steel box culvert section and the box culvert broken end is realized, and the butt joint is provided with the abutting plate and the end face sealing element, so that the end steel box culvert section is conveniently in sealing connection with the box culvert.

As a preferred technical scheme, the end face sealing element comprises a U-shaped end face sealing gasket, and the end face sealing gasket is matched with the abutting plate in shape and is attached to the abutting plate;

the horizontal section of the end face sealing gasket is connected with a bottom sealing strip, the bottom sealing strip is arranged along the horizontal section of the end face sealing gasket, and the bottom sealing strip is attached to the outer surface of the bottom of the butt joint.

By adopting the design, the end face sealing gasket is used for supporting the sealing between the end faces of the backup plate and the box culvert, and the bottom sealing strip is arranged to further improve the sealing effect between the butt joint and the inner bottom of the box culvert because the tensioning fastener is not arranged between the bottom of the backup plate and the box culvert.

Compared with the prior art, the beneficial effects of the utility model are that: the steel box culvert section that the width is slightly little of being convenient for is put into the steel box culvert section that the width is slightly big from the top in the top opening of steel box culvert section to accomplish the connection of the two, join in marriage the steel box culvert through three-section steel box culvert section concatenation and assemble, be convenient for transport and erection construction.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of m1 of FIG. 1;

FIG. 3 is a schematic structural view of an intermediate steel box culvert section;

FIG. 4 is a top view of an intermediate steel box culvert section;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic structural view of an end steel box culvert section;

figure 7 is a top view of an end steel box culvert section;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a bottom view of FIG. 7;

FIG. 10 is a schematic view of the arrangement of FIG. 8 after installation of the face seal;

FIG. 11 is a schematic structural view of an end face seal;

FIG. 12 is a schematic view of the face seal installed on the butt joint;

fig. 13 is an enlarged view of a portion m2 in fig. 12;

FIG. 14 is a schematic structural diagram of a steel box culvert repairing system;

FIG. 15 is a schematic view of the connection structure of the butt joint and the box culvert;

FIG. 16 is a schematic view of the positioning of the butt joint within the box culvert;

FIG. 17 is a schematic structural view of the fastening seat;

FIG. 18 is a left side view of FIG. 17;

FIG. 19 is a schematic view of a structure in which one end of a bridging beam is mounted on a box culvert through a beam body seat;

fig. 20 is a schematic structural view of the bridging beam in an end view.

Detailed Description

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

As shown in figure 1, a steel box culvert for box culvert bridging quick repair, includes three sections of steel box culvert sections that connect in order along length direction, the cross-section of steel box culvert section is the U-shaped, wherein is located both ends the steel box culvert section is tip steel box culvert section 100, is located the middle part the steel box culvert section is middle steel box culvert section 200. The outer end of the end steel box culvert section 100 is provided with a butt joint 150, and the inner end is a connecting end. The two ends of the middle steel box culvert section 200 are respectively jointed with the outer side surface or the inner side surface of the connecting end in an attaching manner, and the two ends of the middle steel box culvert section 200 are respectively corresponding to the end water stopping structures 300 arranged between the connecting ends.

The steel box culvert section comprises a section body, the section body comprises a bottom plate and two vertical plates, and the two vertical plates are respectively connected to two opposite side edges of the bottom plate. The two vertical plates gradually expand outwards from the lower edge to the upper edge to form the steel box culvert section with the cross section being narrow at the lower part and wide at the upper part. The vertical plate inclines outwards by 5-15 degrees. The steel box culvert is characterized in that reinforcing frames are arranged in the sections of the steel box culvert and comprise cross rods and vertical rods which are connected in a staggered mode, wherein the cross rods are connected between the two vertical plates, and the vertical rods are connected with the cross rods and the bottom plate.

As shown in fig. 2 to 4, the intermediate steel box culvert section 200 includes a second section body 210, and at least two second reinforcing frames 220 are disposed in the second section body 210. The joints of the bottom plate and the two vertical plates of the second segment body 210 are respectively provided with a second stiffening rib 230. And a second hanging lug 240 is arranged on the vertical plate of the middle steel box culvert section 200.

As shown in fig. 5 to 8, the end steel box culvert section 100 includes a first section body 110, and at least two first reinforcing frames 120 are disposed in the first section body 110. First stiffening ribs 130 are respectively arranged at the joints of the bottom plate and the two vertical plates of the end steel box culvert section 100. The vertical plate of the middle steel box culvert section 200 is provided with a first hanging lug 140.

As shown in fig. 2 and 9, the end sealing structure 300 includes an extruded strip 310, the extruded strip 310 is disposed along the circumferential direction of the intermediate steel box culvert section 200, the extruded strip 310 is continuously attached to the inner surface or the outer surface of the intermediate steel box culvert section 200, and the extruded strip 310 is sandwiched between the intermediate steel box culvert section 200 and the opposite surface of the connection end.

The crush bars 310 are disposed on the outer surface of the intermediate steel box culvert section 200. A positioning groove 320 is respectively arranged along the trend of each extrusion deformation strip 310, the notch of the positioning groove 320 faces the inner surface of the end steel box culvert section 100, the extrusion deformation strip 310 is arranged in the positioning groove 320, and the extrusion deformation strip 310 exceeds the notch of the positioning groove 320 and is attached to the inner surface of the end steel box culvert section 100.

Specifically, a pair of angle steels 330 is arranged in parallel along the direction of the extruded strip 310, one side of each angle steel 330 is welded to the outer surface of the middle steel box culvert section 200 in an attaching manner, and the other side of each angle steel 330 is vertically arranged on the outer surface of the middle steel box culvert section 200. The positioning groove 320 is defined by the pair of angle steels 330 and the surface of the steel box culvert section 200.

The extrusion deformation strip 310 is tubular, the outer wall of the extrusion deformation strip 310 abuts against the groove bottom and two groove walls of the positioning groove 320 respectively, and the groove depth of the positioning groove 320 is 1/3-2/3 of the outer diameter of the extrusion deformation strip 310. Specifically, the crush bars 310 may be hoses made of rubber or other polymeric material that has elastic and radial deformability to provide a seal when compressed.

The inner surface of the end steel box culvert section 100 is provided with an end limiting strip 170, the end limiting strip 170 is arranged along the circumferential extension of the end steel box culvert section 100, one side of the end limiting strip 270 is connected with the inner surface of the end steel box culvert section 100, and the other side of the end limiting strip faces the middle steel box culvert section 200. The end stop strip 170 is located between two of the positioning slots 320 to prevent the end of the middle steel box culvert section 200 from sliding out of the connecting end of the end stop strip 170. The end limiting strips 170 can be made of angle steel, steel bars, flat iron and the like, the height of the end limiting strips 170 exceeding the bottom plate surface of the end steel box culvert section 100 is smaller than the distance of the angle steel 330 exceeding the surface of the middle steel box culvert section 200, so that when the middle steel box culvert section 100 contains water, the upper edges of the end limiting strips 170 do not contact the bottom of the middle steel box culvert section 100, and the extrusion deformation strips 310 can contact the bottom plate of the end steel box culvert section 100 to play a role.

As shown in fig. 7 and 10, the cross section of the butt joint 150 is U-shaped, the bottom of the butt joint 150 is flush with the bottom plate of the end steel box culvert section 100, the upper ends of the side walls of the butt joint 150 are flush with the upper edges of the corresponding vertical plates, and a triangular transition connecting plate 160 is connected between each side wall of the butt joint 150 and the corresponding vertical plate.

A tightly abutting plate 180 is annularly arranged along the outer wall of the butt joint 150, the tightly abutting plate 180 is perpendicular to the axial direction of the butt joint 150, the inner edge of the tightly abutting plate 180 is connected with the outer wall of the butt joint 150, and an end face sealing element 500 is arranged on one face, facing the free end of the butt joint 150, of the tightly abutting plate 180.

As shown in fig. 10 to 13, the end face sealing member 500 includes a U-shaped end face gasket 510, and the end face gasket 510 is adapted to the shape of the tightening plate 180 and is attached to the tightening plate 180. The horizontal section of the end face gasket 510 is connected with a bottom sealing strip 520, the bottom sealing strip 520 is arranged along the horizontal section of the end face gasket 510, and the bottom sealing strip 520 is attached to the outer surface of the bottom of the pair of connectors 150.

The surface of the end face gasket 510 facing away from the tightening plate 180 and the surface of the bottom sealing strip 520 facing away from the butt joint are respectively provided with at least one continuous pressing convex strip. All press the setting of the lug that changes all to be on a parallel with the board 180 that supports tightly.

The pressure becomes the sand grip including being located first pressure on the end face seal pad 510 becomes the sand grip 511 and is located the second pressure on the bottom sealing strip 520 becomes the sand grip 521. The last parallel arrangement of end face gasket 510 has two at least first pressure to become sand grip 511, first pressure becomes sand grip 511 along the extending direction setting of end face gasket 510, all first pressure becomes sand grip 511 along the width direction interval of end face gasket 510 is arranged.

The bottom sealing strip 520 is provided with at least two pressing and changing convex strips 521 in parallel, the second pressing and changing convex strips 521 are arranged along the extending direction of the bottom sealing strip 520, and all the pressing and changing convex strips 521 are arranged along the width direction of the end face sealing gasket 510 at intervals. And a convex strip deformation yielding area 530 is formed in the gap between every two adjacent pressing and changing convex strips.

When the abutting plate 180 abuts against the box culvert a, the pressing and deformation convex strips of the end face sealing piece 500 deform to better fit the box culvert a, so that the sealing effect is enhanced.

In this embodiment, the face seal 500 may be integrally formed of a rubber material.

The steel box of the embodiment is suitable for the scene as shown in fig. 14. The utility model provides a steel box culvert repair system of heavy-calibre box culvert, includes two sections box culverts a that set up relatively, two sections stride above the box culvert and be equipped with bridging hanging beam 600, and the steel box culvert has been articulated to this bridging hanging beam 600 below, and this steel box culvert will two sections box culvert a communicates.

As shown in fig. 15 and 16, the cross section of the butt-joint 150 is adapted to the inner wall of the box culvert a, and the butt-joint 150 extends into the box culvert a.

A tensioning assembly 400 is connected between the butt joint 150 and the box culvert a. The tension assembly 400 includes a fastening socket 410 and a tension fastener 420. The fastening seat 410 is door-shaped, the fastening seat 410 is sleeved on the box culvert a, and two vertical parts of the fastening seat 410 are respectively provided with a row of tensioning holes 414. Two side edges of the tightening plate 180 extend beyond the outer surface of the side wall of the box culvert a, a row of tightening plate holes 181 are distributed on the tightening plate 180 close to the two side edges of the tightening plate, and the tightening plate holes 181 are opposite to the tensioning holes 414 one by one. The tightening plate holes 181 are strip-shaped holes, the tightening plate holes 181 are vertically arranged, one tensioning fastener 420 penetrates through each tightening plate hole 181, and the tensioning fasteners 420 are arranged in parallel and are respectively connected with the fastening seat 410.

Specifically, the fastening seat 410 includes a base plate 411 and a tension plate 412. As shown in fig. 17 and 18, the base plate 411 is in a door shape, and is formed by bending a strip plate in the same direction, the outer side surfaces of two vertical sections of the base plate 411 are respectively connected with one tensioning plate 412, the tensioning plates 412 are respectively arranged along the corresponding vertical sections of the base plate 411, and the tensioning plates 412 are perpendicular to the outer side surfaces of the base plate 411;

the fastening seat 410 is fixedly sleeved outside the box culvert a. A plurality of substrate holes 413 penetrate through the substrate 411 along the direction of the substrate, expansion bolts penetrate through the substrate holes 413 respectively, and the expansion bolts fix the fastening seat 410 on the box culvert a.

The tensioning plate 412 is provided with tensioning holes 414 through, and the tensioning holes 414 are opposite to the fastening plate holes 181. The tensioning fastener 420 is a connecting bolt, and two ends of the connecting bolt respectively penetrate through the tensioning hole 414 and the fastening resisting hole 181.

As shown in fig. 14, 19 and 20, the bridged suspension beam 600 includes a bridged beam 610 and two beam mounts 630, wherein the two beam mounts 630 are respectively disposed on the two box culverts a, and two ends of the bridged beam 610 respectively fall on the corresponding beam mounts 630.

Two rows of hanging pieces 620 are arranged below the bridging beam 610, the two rows of hanging pieces 620 are symmetrically distributed on two sides of the bridging beam 610, and each row of hanging pieces 620 is arranged along the length direction of the bridging beam 610 and is respectively connected with the corresponding side wall of the steel box culvert.

The hanging piece 620 is a telescopic hanging piece, the upper end of the hanging piece 620 is connected with the bridging beam 610, and the lower end of the hanging piece 620 is connected with the steel box culvert.

As shown in fig. 19 and 20, the bridging beam 610 includes two longitudinal main beam rods 611, the two longitudinal main beam rods 611 are parallel to each other and are horizontally arranged opposite to each other, at least two transverse connecting rods 612 are connected between the two longitudinal main beam rods, and all the transverse connecting rods 612 are arranged along the length direction of the longitudinal main beam rods 611. All the longitudinal main beams 611 and the transverse connecting rods 612 are welded to form the bridging beam 610. The longitudinal main beam bar 611 and the transverse connecting rod 612 are respectively made of H-shaped steel with large section size and small section size, the flange plates of the longitudinal main beam bar 611 are located in the horizontal direction, and the transverse connecting rod 612 is connected between the web plates of the two longitudinal main beam bars 611. A hanging lug 614 is connected below the lower flange plate of the longitudinal main beam rod 611, and the hanging piece 620 is hung on the hanging lug 614.

A reinforcing plate 613 is connected between the upper flange plate and the lower flange plate of the longitudinal main beam 611, the reinforcing plate 613 is vertically arranged, and the reinforcing plate 613 is respectively connected with the upper flange plate, the lower flange plate and the web plate which are positioned on the same side of the web plate. One reinforcing plate 613 is disposed near each suspension lug 614.

The beam body seat 630 includes a rectangular bottom frame 632, the width of the bottom frame 632 is equal to that of the bridging beam 610, the bottom frame 632 is connected with a positioning plate 633 respectively corresponding to the frame strips on both sides of the bridging beam 610, and the positioning plate 633 is located in a vertical plane and connected below the bottom frame 632. After the installation, two positioning plates 633 of the same beam body seat 630 respectively lean against the outer walls of the two sides of the box culvert a.

A support body 631 formed by H-shaped steel sections and channel steel sections which are connected in a staggered manner is arranged above the bottom frame 632, and the bridging beam 610 is arranged above the support body 631.

The hanging members 620 are in one-to-one correspondence with the hanging lugs 240. The suspension part 620 is a turn buckle, the upper end of the turn buckle is connected with the bridging beam 610, the lower end of the turn buckle is a hook, and the hook at the lower end of the turn buckle is hung on the hanging lug 240 below the turn buckle.

The construction process brief introduction of this system is as follows: and cutting off the damaged box culvert sections to form two sections of box culverts a which are oppositely arranged. During repair, the bridging suspension beam 600 is firstly hoisted to the two sections of box culverts a, wherein the two beam body seats 630 can be firstly and respectively installed at the broken ends of the two box culverts a, then the bridging beam 610 is installed on the two beam body seats 630, and the two beam body seats are temporarily connected through bolts to be welded or directly welded, or the beam body seats 630 and the bridging beam 610 are firstly assembled into a whole on the ground and then integrally hoisted and installed. And then, the middle steel box culvert section 200 is hoisted and hung below the middle part of the bridging beam 610 and is higher than the designed installation height. Then, the two sections of end steel box culvert sections 100 are respectively lifted, the connecting ends of the two sections of end steel box culvert sections are sleeved outside the middle steel box culvert section 200, the end steel box culvert sections 100 are hung at the ends of the bridging beams 610, the butt joints 150 extend into the corresponding box culvert a, and the box culvert a is fixedly connected with the butt joints by using the tensioning assemblies 400. Finally, the turn buckle is adjusted to extend, the middle steel box culvert section 200 is lowered, and the extrusion deformation strips 310 at the two ends of the middle steel box culvert section are respectively dropped on the inner bottom surfaces of the corresponding end steel box culvert sections 100.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (9)

1. The utility model provides a steel box culvert that is used for box culvert bridging to overhaul soon which characterized in that: the steel box culvert is characterized by comprising three sections of steel box culvert sections which are sequentially connected along the length direction, wherein the sections of the steel box culvert sections are U-shaped, the steel box culvert sections positioned at two ends are end steel box culvert sections (100), and the steel box culvert section positioned in the middle is a middle steel box culvert section (200);

the outer end of the end steel box culvert section (100) is provided with a butt joint (150), and the inner end is a connecting end;

the two ends of the middle steel box culvert section (200) are respectively jointed with the outer side face or the inner side face of the connecting end in an attaching mode, and the two ends of the middle steel box culvert section (200) are respectively corresponding to the end water stopping structures (300) arranged between the connecting ends.

2. The steel box culvert for box culvert bridging quick repair of claim 1, wherein: the end sealing structure (300) comprises an extrusion deformation strip (310), the extrusion deformation strip (310) is arranged along the annular direction of the middle steel box culvert section (200), the extrusion deformation strip (310) is continuously attached to the inner surface or the outer surface of the middle steel box culvert section (200), and the extrusion deformation strip (310) is clamped between the middle steel box culvert section (200) and the opposite surface of the connecting end.

3. The steel box culvert for box culvert bridging quick repair of claim 2, wherein: the extrusion deformation strip (310) is arranged on the outer surface of the middle steel box culvert section (200);

along every the trend of extrusion deformation strip (310) is provided with a constant head tank (320) respectively, and the notch of this constant head tank (320) is towards the internal surface of tip steel box culvert festival (100), be provided with in this constant head tank (320) extrusion deformation strip (310), extrusion deformation strip (310) surpass the notch of constant head tank (320) and with the internal surface laminating of tip steel box culvert festival (100).

4. The steel box culvert for box culvert bridging quick repair of claim 3, wherein: a pair of angle steels (330) are arranged in parallel along the direction of the extrusion deformation strip (310), one side of each angle steel (330) is welded on the outer surface of the middle steel box culvert section (200) in an attaching mode, and the other side of each angle steel (330) is vertically arranged on the outer surface of the middle steel box culvert section (200);

the positioning groove (320) is formed by the pair of angle steels (330) and the surface of the steel box culvert section (200) in a surrounding mode.

5. The steel box culvert for box culvert bridging quick repair of claim 4, wherein: the extrusion deformation strip (310) is tubular, the outer wall of the extrusion deformation strip (310) abuts against the groove bottom and two groove walls of the positioning groove (320) respectively, and the groove depth of the positioning groove (320) is 1/3-2/3 of the outer diameter of the extrusion deformation strip (310).

6. The steel box culvert for box culvert bridging quick repair of claim 4 or 5, wherein: an end limiting strip (170) is arranged on the inner surface of the inner end of the end steel box culvert section (100), the end limiting strip (170) extends along the circumferential direction of the end steel box culvert section (100), one side of the end limiting strip (170) is connected with the inner surface of the end steel box culvert section (100), and the other side of the end limiting strip faces the middle steel box culvert section (200);

the end limiting strip (170) is positioned between the two positioning grooves (320).

7. The steel box culvert for bridge quick repair of the box culvert according to any one of claims 2 to 5, wherein: the steel box culvert section comprises a bottom plate and two vertical plates, wherein the two vertical plates are respectively connected to two opposite side edges of the bottom plate;

the two vertical plates gradually expand outwards from the lower edge to the upper edge to form the steel box culvert section with the cross section being narrow at the lower part and wide at the upper part.

8. The steel box culvert for box culvert bridging quick repair of claim 7, wherein: the cross section of the butt joint (150) is U-shaped, the bottom of the butt joint (150) is flush with the bottom plate of the end steel box culvert section (100), the upper ends of the side walls of the butt joint (150) are respectively flush with the upper edges of the corresponding vertical plates, and triangular transition connecting plates (160) are connected between the side walls of the butt joint (150) and the corresponding vertical plates;

a tight abutting plate (180) is arranged along the outer wall of the butt joint (150) in the circumferential direction, the tight abutting plate (180) is perpendicular to the axial direction of the butt joint (150), the inner edge of the tight abutting plate (180) is connected with the outer wall of the butt joint (150), and an end face sealing piece (500) is arranged on one face, facing the free end of the butt joint (150), of the tight abutting plate (180).

9. The steel box culvert for box culvert bridging quick repair of claim 8, wherein: the end face sealing piece (500) comprises a U-shaped end face sealing gasket (510), and the end face sealing gasket (510) is matched with the abutting plate (180) in shape and is attached to and covered on the abutting plate (180);

the horizontal section of the end face sealing gasket (510) is connected with a bottom sealing strip (520), the bottom sealing strip (520) is arranged along the horizontal section of the end face sealing gasket (510), and the bottom sealing strip (520) is attached to the outer surface of the bottom of the butt joint (150).

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