CN114150624A

CN114150624A - Impact protection system for overhead box culvert near river

Info

Publication number: CN114150624A
Application number: CN202111658847.5A
Authority: CN
Inventors: 何荣; 王正诚; 刘石虎; 李康; 陈永红; 何华; 肖宁; 张强; 郭舟路; 李亮; 蒋熠; 吉晓鹏; 官进; 余升; 黄晶; 柳菁翠; 李瑀
Original assignee: Chongqing Drainage Co Ltd
Current assignee: Chongqing Drainage Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-03-08
Anticipated expiration: 2041-12-31
Also published as: CN114150624B

Abstract

The invention discloses a riverside overhead box culvert impact protection system which comprises pier columns, capping beams and box culverts, wherein the capping beams are fixedly arranged at the upper ends of the pier columns, at least two adjacent capping beams are supported with a section of the box culverts, the pier columns are arranged along the trend of a river bank, one sides of the box culverts face the river surface, one sides of the pier columns, which face the river surface, are provided with a fender, the fender is also provided with a circumferential pressure relief assembly, the circumferential pressure relief assembly is arranged around the pier columns, box culvert guardrails are fixedly arranged on the pier columns or/and the capping beams, the box culverts are shielded by the box culvert guardrails from one side of the river surface, and the outer walls of the box culverts are provided with hanging type sticking and protecting devices. Compared with the prior art, the invention has the beneficial effects that: each part of box culvert tectosome sets up protective structure respectively, realizes comprehensive protection from a plurality of aspect, effectively alleviates the collision damage of boats and ships to the box culvert structure under the different river surface condition.

Description

Impact protection system for overhead box culvert near river

Technical Field

The invention belongs to the technical field of drainage facility protection, and particularly relates to a collision protection system for an overhead box culvert near a river.

Background

The box culvert is generally used for the main drainage pipeline of the municipal drainage pipe network, and the damage of the box culvert has serious influence on a drainage system. Some drainage works in urban area make a mere figurehead box culvert and lie in the river course edge, and the pile foundation is adopted to the lower part, and pier stud and bent cap structure are adopted on upper portion. Due to the fact that the river channel is provided with the sailing boat, the bridge is built on the river surface, the river channel is bent and extended, the sailing boat is crowded, the sailing boat and the drainage engineering are subjected to friction hanging collision accidents with high probability, and particularly the river reach with high curvature is easy to cause collision accidents, so that the drainage engineering is damaged. The sailing ship may collide with the box culvert pier or box culvert due to the fluctuation of the river surface water level in different seasons. Therefore, a protective structure needs to be designed for the overhead box culvert, so that damage to the overhead box culvert caused by ship collision is avoided or reduced. Due to different structural characteristics, the box culvert pier columns and the box culverts need to adopt different protection systems.

Disclosure of Invention

In view of the above, the invention provides an impact protection system for an overhead box culvert near a river.

The technical scheme is as follows:

a riverside overhead box culvert impact protection system comprises pier columns, bent caps and box culverts, wherein the bent caps are fixedly arranged at the upper ends of the pier columns, a section of the box culverts is supported on at least two adjacent bent caps, the pier columns are arranged along the trend of a river bank, one side of each box culvert faces the river surface, and the key point is that,

a fender is arranged on one side, facing the river surface, of the pier stud, and an annular pressure relief assembly is further arranged outside the fender and surrounds the pier stud;

box culvert guardrails are fixedly arranged on the pier columns or/and the cover beams, the box culvert guardrails are positioned outside the side walls of the box culverts facing the river surface, the box culvert guardrails shield the box culverts, and the box culvert guardrails and the box culverts are arranged in a separated mode;

the box culvert outer wall is provided with the hanging type and pastes the protection device.

Compared with the prior art, the invention has the beneficial effects that: each part of box culvert tectosome sets up protective structure respectively, realizes comprehensive protection from a plurality of aspect, effectively alleviates the collision damage of boats and ships to the box culvert structure under the different river surface condition.

Drawings

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

FIG. 2 is a right side view of FIG. 1 with the circumferential pressure relief assembly hidden;

FIG. 3 is a schematic structural view of the fender;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic structural view of the installation of the annular pressure relief assembly and the fender on the pier stud;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic view of a tension band configuration;

FIG. 8 is a schematic view of the compression resistant bumper mounted to the flattened bumper mount;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8;

FIG. 10 is an enlarged view of the portion m of FIG. 9;

FIG. 11 is a schematic view of the installation of the protector on the box culvert;

FIG. 12 is a bottom view of FIG. 11;

FIG. 13 is a schematic view of the structure of the rubber strip;

fig. 14 is a cross-sectional view taken at C-C of fig. 13.

Detailed Description

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

As shown in fig. 1 and 2, a river-adjacent overhead box culvert impact protection system comprises pier columns 110, bent cap 120 and box culverts 100, the upper ends of the pier columns 110 are fixedly provided with the bent cap 120, and at least two adjacent bent caps 120 are supported by one section of the box culverts 100. The upper surface of the bent cap 120 is provided with a supporting groove, and the box culvert 100 falls in the supporting groove. The pier columns 110 are arranged along the trend of a river bank, one side of the box culvert 100 faces the river surface, and one side of the pier columns 110, which faces the river surface, is provided with a fender 500. The fender 500 is further provided with a circumferential pressure relief assembly 600, and the circumferential pressure relief assembly 600 is arranged around the pier stud 110. The box culvert guardrail 400 is fixedly arranged on the pier column 110 or/and the cover beam 120, the box culvert guardrail 400 is positioned outside the lateral wall of the box culvert 100 facing the river surface, the box culvert guardrail 400 shields the box culvert 100, and the box culvert guardrail 400 is separated from the box culvert 100. The box culvert 100 is provided with a hanging type pasting and protecting device on the side wall facing the river surface.

In this way, the entire box culvert structure is protected from each other. When the river surface is low, the possibility that a ship on the river surface collides with the pier stud 110 is high, and the annular pressure relief assembly 600 and the fender 500 play a role in protecting the pier stud 110. When the river surface is high or the ship is large, the possibility of collision of the ship with the capping beam 120 or the box culvert 100 is increased. Once the ship has a tendency to collide with box culvert 100, the ship firstly contacts box culvert guardrail 400, momentum of the ship moving to box culvert 100 is reduced under the blocking of box culvert guardrail 400, and the ship body may not directly act on box culvert 100. Even if box culvert guardrail 400 became invalid, the hanging type attaching and protecting device on the outer wall of box culvert 100 can also avoid the direct contact of the ship body and box culvert 100, thereby buffering the impact damage of the ship body to box culvert 100. This forms a multi-level protection system.

As shown in fig. 2, 3 and 4, the fender 500 is in a strip shape, the fender 500 is vertically arranged, and the fenders 500 are distributed on the surface of the pier column 110 in an array shape. The fender 500 comprises a buffering part 510 with a V-shaped groove-shaped cross section, two edges of the buffering part 510 extend outwards respectively to form mounting parts 520, an opening of the buffering part 510 faces the surface of the pier stud 110, and the two mounting parts 520 are fixed to be attached to the pier stud 110 respectively. In this embodiment, the fender 500 is a rubber fender, and the two mounting portions 520 are fixed to the pier stud 110 by bolts, respectively.

As shown in fig. 5 and 6, the circumferential pressure relief assembly 600 includes an impact resistant plate 610 and a compression resistant bumper 630. The pier stud 110 outer wall area with the fender 500 equal in height is a buffer area, and the compression-resistant buffer 630 is arranged in the buffer area. The fender 500 is covered with an arc-shaped anti-impact plate 610, the concave surface of the anti-impact plate 610 faces the fender 500, the anti-impact plate 610 is connected with a flexible tension band 620, the tension band 620 surrounds the buffer area, two ends of the tension band 620 are freely crossed and then respectively connected with two ends of the anti-impact plate 610, when the convex surface of the anti-impact plate 610 is pressed, the anti-impact plate 610 drives two ends of the tension band 620 to be away from each other, and the tension band 620 inwards extrudes the compression-resistant buffer 630.

The impact resistant plate 610 is a plate having a high rigidity and is capable of deforming to some extent even when a large impact force is applied thereto, and may be a steel plate, for example. The tension band 620 is made of a material having a high tensile strength, and preferably has a smooth surface, and may be made of, for example, a fiber composite material, or a steel wire woven material, and the outer surface of the tension band is covered with a polymer material. The tension band 620 has opposite ends respectively abutting against corresponding ends of the anti-impact plate 610, and is clamped by the steel plate and connected thereto by bolts. When a ship collides with the anti-impact plate 610, impact force is transmitted from the anti-impact plate 610 to the tension band 620 to be tensioned, and the tensioned tension band 620 acts on the compression-resistant buffer 630, so that the impact force is dispersed to the compression-resistant buffer 630 to perform a buffering function. At the same time, the impact resistant plate 610 being impacted also presses against the fender 500 located inside thereof, and the deformation of the fender 500 will further dissipate the impact force. The transmission of force between the impact plate 610 and the tension band 620 is similar to the transmission of force between the bow and the string, so that the tension band 620 should not be in a relaxed state but should be slightly tensioned when no external force is applied.

As shown in fig. 7, a through hole 621 is formed on the tension belt 620 near one end thereof, a partial width of the tension belt 620 near the other end thereof is narrowed to form a slip segment 622, and the slip segment 622 is movably inserted into the through hole 621. Thus, when the impact plate 610 deforms, the slip segment 622 easily slides within the via 621.

The compression-resistant damper 630 is made of an elastic material, and the compression-resistant damper 630 has an inner cavity filled with a fluid. Thus, the compression damper 630 is deformed and provides a certain reverse resistance when it is pressed by the tension band 620, thereby consuming energy.

In a preferred embodiment, the inner cavity of the compression resistant bumper 630 is filled with a non-Newtonian fluid. The non-newtonian fluid is characterized by easy flow deformation when it is slowly pressurized, and exhibits rigidity when it is rapidly pressurized, so that when the anti-impact plate 610 is rapidly deformed by a large impact force, the tension band 620 is rapidly pressurized against the compression bumper 630, and the compression bumper 630 can stably disperse the tension on the tension band 620 to the abutment 110.

In this embodiment, at least two of the pressure-resistant buffers 630 are disposed in the buffer region, the pressure-resistant buffers 630 are cylindrical, the pressure-resistant buffers 630 are vertically disposed, and all of the pressure-resistant buffers 630 are wound around the pier stud 110 in the buffer region. The tension on the tension band 620 is dispersed to the pier stud 110 by the plurality of compression buffers 630.

The compression bumper 630 may be installed as follows: as shown in fig. 6, 8 to 10, the buffer area is fixedly provided with a buffer mounting seat 640, and the buffer mounting seat 640 includes a rectangular bendable bottom plate 641, and the bottom plate 641 extends along the horizontal direction and is attached to and fixed to the buffer area. Specifically, two long edges of the bottom plate 641 are respectively connected with a fixing lug 646, and a bolt is inserted into the fixing lug 646 to fix the bumper mounting base 640 on the pier stud 110.

Support clamping grooves 642 are respectively arranged along two long edge edges of the bottom plate 641, and the two support clamping grooves 642 are located on the outer side surface of the bottom plate 641. The notch of the supporting clamping groove 642 faces the bottom plate 641, and two edges of the notch of the supporting clamping groove 642 are fixedly connected with the bottom plate 641. The groove bottom of the support locking groove 642 is provided with a long hole 643, the long hole 643 extends along the length direction of the support locking groove 642, a plurality of positioning notches 644 are arranged on the groove bottom corresponding to the lower edge of the long hole 643, and the positioning notches 644 are communicated with the long hole 643.

The outer walls of the two ends of the pressure-resistant buffer member 630 are respectively and fixedly connected with clamping columns 631, the free ends of the two clamping columns 631 respectively extend into the corresponding strip holes 643, and the two clamping columns 631 respectively fall on the pair of positioning notches 644 which are opposite to each other from top to bottom. The free end of the locking post 631 is connected with an anti-drop head to prevent the locking post 631 from dropping out of the elongated hole 643 and the positioning notch 644.

In this manner, a flexible arrangement of a number and diameter of the pressure-resistant bumpers 630 is facilitated. Moreover, the compression-resistant buffer 630 can be jacked upwards as required, so that the clamping column 631 can slide in the elongated hole 643, the position of the compression-resistant buffer 630 can be conveniently moved along the elongated hole 643, after the compression-resistant buffer 630 is moved in place, external force is removed, and the clamping column 631 on the compression-resistant buffer 630 automatically falls into the corresponding positioning notch 644, so that positioning is achieved.

In order to facilitate the installation of the compression-resistant buffer 630, as shown in fig. 8, mounting holes 645 are respectively formed on the groove bottom of the support locking groove 642 corresponding to two ends of the elongated hole 643, the mounting holes 645 are communicated with the elongated hole 643, and the diameter of the mounting holes 645 is larger than the outer diameter of the drop-proof head, so as to allow the snap-in columns 631 to be placed in or taken out of the mounting holes 645.

The buffer mounting seat 640 may be made of a material having both rigidity and flexibility, such as rubber, and may be reinforced by a built-in steel wire mesh in order to further improve the toughness and increase the rigidity properly.

Because the supporting fastening groove 642 protrudes out of the bottom plate 641, the radial sizes of the two ends of the compression-resistant buffer 630 are reduced, the fastening post 631 is radially connected to the small diameter portion of the compression-resistant buffer 630, and the middle body of the compression-resistant buffer 630 is attached to the bottom plate 641. The pressure-resistant buffer 630 may be made of rubber material, and the catching posts 631 are integrally formed at the ends thereof.

In this embodiment, a row of fenders 500 is distributed along the circumferential direction of the pier 110 on the side wall thereof facing the river surface at the same height of the pier 110. The fender 500 may be a mature rubber fender. On each pier stud 110, one or more rows of fenders 500 are provided as required. A group of annular pressure relief assemblies 600 are respectively arranged outside each row of the fender 500.

As shown in fig. 1 and 2, the culvert guardrail 400 is provided with two guardrail supports, namely a first guardrail support 430 and a second guardrail support 420, corresponding to each set of the pier stud 110 and the cap beam 120. Wherein the first guardrail support 430 is fixedly connected between the pier stud 110 and the box culvert guardrail 400, and the second guardrail support 420 is fixedly connected between the capping beam 120 and the box culvert guardrail 400.

The first guardrail support 430 comprises an anchor ear 431 and a first strut 432, the anchor ear 431 holds the pier stud 110, one end of the first strut 432 is welded with the anchor ear 431, and the other end is welded with the box culvert guardrail 400. The hoop 431 may be a common hoop structure, that is, formed by splicing two stainless steel semicircular rings, and the corresponding ends of the semicircular rings are connected by bolts. The first leg 432 may be formed of angle steel.

In this embodiment, the first guardrail support 430 is provided with three hoops 431, the three hoops 431 are vertically arranged on the pier column 110, at least one first strut 432 is welded between each hoop 431 and the box culvert guardrail 400, and all the first struts 432 connected to the same pier column 110 are vertically distributed. All the first struts 432 connected with the pier 110 are alternately arranged in a horizontal mode and an inclined mode to form a first strut group which is arranged in a triangular mode, wherein the first struts 432 arranged horizontally are perpendicular to the pier 110, the upper ends of the first struts 432 arranged in an inclined mode are connected with the box culvert guardrail 400, and the lower ends of the first struts 432 arranged in an inclined mode are connected with the hoop 431. This kind of arrangement of first strut group plays ascending lift effect to box culvert guardrail 400, can resist simultaneously from river surface one side to the impact of box culvert guardrail 400.

The second guardrail support 420 comprises an anchor plate 421, and the anchor plate 421 is fixed against the side wall of the box culvert guardrail 400 opposite to the capping beam 120. Specifically, the anchor bars 423 are embedded in the bent cap 120, welding holes are respectively formed in the anchor plate 421 corresponding to each anchor bar 423, and the anchor plate 421 is plug-welded to the anchor bars 423. Anchor plate 421 with be connected with two piece at least second branch 422 between box culvert guardrail 400, second branch 422 level sets up, all second branch 422 is vertical arranges. Angle steel may also be used for the second strut 422. Second branch 422 mainly plays the effect of stabilizing box culvert guardrail 400, can effectively resist simultaneously from river surface one side to the impact of box culvert guardrail 400.

As shown in fig. 2, in this embodiment, the box culvert guardrail 400 includes square pipes 401, corresponds every the pier stud 110 is provided with a square pipe 401 respectively, square pipe 401 and corresponding guardrail support welded connection, square pipe 401 upper end is not less than the box culvert 100 upper surface, adjacent two horizontally connected has steel strand wires 402 between the square pipe 401, is located adjacent two between the square pipe 401 the vertical evenly distributed of steel strand wires section, adjacent two interval between the steel strand wires section is 15 ~ 25 cm.

As shown in fig. 11 and 12, the attachment device includes a flexible strip 300, one end of the strip 300 is connected with an anti-collision armor, and the other end of the strip 300 is connected with a counterweight. The overlap strip 300 stretches across on the box culvert 100, the anticollision armour with the counter weight hangs and pastes respectively the box culvert both sides lateral wall, and the anticollision armour pastes the lateral wall of box culvert, the anticollision armour has the energy-absorbing deformability. Wherein, the anti-collision armor is positioned on the side of the box culvert 100 near the river, and the counterweight is positioned on the side of the box culvert 100 back to the river.

In one embodiment, the weight is another impact armour. Therefore, the balance of the two sides of the box culvert 100 is easy to realize, and when the anti-collision armor close to the river is damaged, the anti-collision armor on the two sides can be exchanged.

The anticollision armour is formed by the equipment of at least one deck crashproof adhesive tape 200, crashproof adhesive tape 200 includes slot-like rubber strip 210, the both edges of rubber strip 210 extend outside the groove respectively in order to form the subsides 220, all the notch orientation of rubber strip 210 the box culvert lateral wall. At least one layer of the crash strips 200 is arranged and connected in the width direction to form the crash armor.

As shown in fig. 12, in this embodiment, the anti-collision rubber strip 200 is vertically disposed, a lifting lug 214 is disposed at the upper end of the anti-collision rubber strip 200, and the lifting lug 214 is connected to the strap 300.

In a preferred embodiment, the impact protection armor comprises at least two layers of the impact protection rubber strips 200 which are arranged in a stacked mode, and the adjacent edges of any two adjacent impact protection rubber strips 200 in the same layer are connected. At least two of the innermost layers of the anti-collision rubber strips 200 are arranged, and the abutting parts 220 of the innermost layers of the anti-collision rubber strips 200 abut against the corresponding side walls of the box culvert. The two adjacent layers of the anti-collision rubber strips 200 are arranged in a staggered mode, and the number of the anti-collision rubber strips 200 positioned on the outer layer is one less than that of the anti-collision rubber strips 200 positioned on the adjacent inner layer. The anti-collision armor on both sides of the box culvert 100 are symmetrically arranged to keep balance, and the assembly is convenient, and only the lifting lugs 214 of the anti-collision rubber strips 200 on the innermost layer need to be connected by the lapping strips 300.

Except for the innermost layer, the two abutting parts 220 of the anti-collision rubber strip 200 of any layer abut against the outer side surfaces of the groove bottoms of the two adjacent anti-collision rubber strips 200 positioned on the inner sides of the two adjacent anti-collision rubber strips respectively and are connected with the outer side surfaces. In this way, a layer-by-layer stack of crash armour is formed.

The assembly mode of the anti-collision armor is as follows: as shown in fig. 13, the outer edges of the two abutting portions 220 of the crash strip 200 are respectively provided with a first connecting portion 211 and a second connecting portion 212, and the outer side surface of the groove bottom of the rubber strip 210 is provided with a third connecting portion 213. The first connection portion 211, the second connection portion 212 and the third connection portion 213 form a connection group, and the first connection portion 211, the second connection portion 212 and the third connection portion 213 in the same connection group are arranged along the same straight line direction in the width direction of the rubber strip 210. At least two connecting groups are arranged on each rubber strip 210, and all the connecting groups are distributed along the length direction of the rubber strips 210.

As shown in fig. 11 and 12, in the same layer, the first connecting portion 211 of one of the crash strips 200 is connected to the second connecting portion 212 of another adjacent crash strip 200. In any two adjacent layers, the first connecting portion 211 and the second connecting portion 212 of the outer-layer crash-proof rubber strip 200 are respectively connected with the third connecting portion 213 of the inner-layer crash-proof rubber strip 200.

The first connecting portion 211 and the second connecting portion 212 are support lugs, the support lugs are connected to the outer edges of the corresponding abutting portions 220 and extend outwards, the first connecting portion 211 and the second connecting portion 212 are staggered in a direction parallel to the abutting portions 220, for example, the first connecting portion 211 is close to a notch of the rubber strip 210, and the second connecting portion 212 is close to a groove bottom of the rubber strip 210. When the crash-proof rubber strips 200 on the same layer are spliced, the connected first connecting portion 211 and the second connecting portion 212 can be overlapped, so that the crash-proof rubber strips can be conveniently connected through bolts.

The third connecting portion 213 is a rubber bump integrally formed on the outer side surface of the bottom of the rubber strip 210, and the rubber bump is provided with a blind hole. In any two adjacent layers, the first connecting portion 211 and the second connecting portion 212 of the outer-layer anti-collision rubber strip 200 are respectively connected with the corresponding rubber bumps on the inner-layer anti-collision rubber strip 200 through studs.

In order to improve the impact energy absorption effect of the crash rubber strip 200, the rubber strip 210 is internally coated with a rigid energy absorption deformable body 230. Specifically, as shown in fig. 13 and 14, the groove bottom of the rubber strip 210 is planar, the groove walls on both sides of the rubber strip 210 are respectively smooth curved surfaces, the groove walls on both sides of the rubber strip 210 are respectively connected to the corresponding edges of the groove bottom, the edges of the groove walls on both sides corresponding to the groove openings respectively extend to the same side of the groove bottom and are offset outwards, and then the edges respectively extend outwards in a planar shape to form the attaching part 220, and the attaching part 220 is parallel to the groove bottom. The energy-absorbing deformable body 230 is a groove-shaped steel plate embedded in the rubber strip 210, and the shape of the groove-shaped steel plate is matched with that of the rubber strip 210. When the outside of the groove bottom is impacted, the groove-shaped structure part of the rubber strip 210 is deformed inwards, and simultaneously, the two sides of the groove wall extend outwards.

The hanging type attaching device of the invention can be installed as follows: to the box culvert 100 that needs installation protector, use the strip 300 of taking of suitable length to link to each other two anti-collision rubber strips 200, form a rubber strip right, then hang on box culvert 100, anti-collision rubber strip 200's notch is towards box culvert 100 lateral wall, and the portion 220 of pasting is pasted and is leaned on box culvert 100 lateral wall. Along the axial of box culvert 100, place a plurality of adhesive tape pairs, connect two adjacent crashproof adhesive tape 200 of homonymy again, accomplish the installation of inlayer crashproof adhesive tape 200. And assembling the outer anti-collision rubber strips 200 in sequence according to the requirement. Two or more layers of the crash strips 200 may be assembled depending upon design requirements. The connection between the anti-collision rubber strips 200 can be made of high-molecular bolts or studs.

Because the anti-collision rubber strips 200 have certain rigidity and impact deformation capacity, the anti-collision armor formed by assembling the multiple layers of anti-collision rubber strips 200 together forms a frame type impact-resistant structure, and the force is transmitted and dispersed layer by layer when being impacted. If the box culvert 100 is impacted by the ship body on the river surface, the anti-collision rubber strip 200 is elastically deformed to absorb the impact force if the impact force is small; if the impact force is large, the groove-shaped steel plate in the anti-collision rubber strip 200 is subjected to plastic deformation to absorb the impact force, and the rubber material is subjected to elastic deformation to buffer the impact of the ship body on the box culvert 100. The anti-collision armor has the characteristics of strong impact resistance and good energy absorption, is assembled according to needs, has a very flexible installation mode, and can be used as a final protective structure of a drainage box culvert near the river.

Finally, it should be noted that the above-mentioned 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 scope of the present invention.

Claims

1. The utility model provides a face built on stilts box culvert striking protection system in river, includes pier stud (110), bent cap (120) and box culvert (100), pier stud (110) upper end is fixed to be provided with bent cap (120), at least two adjacent settings it has one section to support on bent cap (120) box culvert (100), pier stud (110) move towards along the river bank and arrange, one side of box culvert (100) is towards the river face, its characterized in that: a fender (500) is arranged on one side, facing the river surface, of the pier column (110), a circumferential pressure relief assembly (600) is further arranged outside the fender (500), and the circumferential pressure relief assembly (600) is arranged around the pier column (110);

box culvert guardrails (400) are fixedly arranged on the pier columns (110) or/and the cover beams (120), the box culvert guardrails (400) are positioned outside the side walls of the box culverts (100) facing the river surface, the box culvert guardrails (400) shield the box culverts (100), and the box culvert guardrails (400) and the box culverts (100) are arranged in a separated mode;

the outer wall of the box culvert (100) is provided with a lap-hanging type pasting and protecting device.

2. The impact protection system for the temporary river box culvert according to claim 1, wherein the impact protection system comprises: the annular pressure relief assembly (600) comprises an impact resistant plate (610) and a compression resistant bumper (630);

the outer wall area of the pier column (110) with the same height as the fender (500) is a buffer area, and the compression-resistant buffer (630) is arranged in the buffer area;

fender (500) dustcoat is equipped with the curved board (610) of shocking resistance, and the concave surface orientation of board (610) of should shocking resistance fender (500), board (610) of should shocking resistance are connected with flexible tension band (620), and this tension band (620) encircles the bolster district, the both ends of this tension band (620) freely cross the back respectively with the both ends of board (610) of shocking resistance are connected, when the convex surface pressurized of board (610) of shocking resistance, board (610) of shocking resistance drives the both ends of tension band (620) are kept away from each other and are made tension band (620) inwards extrudees resistance to compression bolster (630).

3. The near-river overhead box culvert impact protection system of claim 2, characterized in that: a through hole (621) is formed in the tension belt (620) close to one end of the tension belt, the local width of the tension belt (620) close to the other end of the tension belt is narrowed to form a slippage section (622), and the slippage section (622) is movably arranged in the through hole (621) in a penetrating mode.

4. The near-river overhead box culvert impact protection system of claim 2, characterized in that: the compression-resistant buffer (630) is made of an elastic material, and the compression-resistant buffer (630) has an inner cavity filled with a fluid.

5. The impact protection system for the Yangjiang overhead box culvert according to claim 4, wherein: at least two compression-resistant buffer members (630) are arranged in the buffer member region, the compression-resistant buffer members (630) are cylindrical, the compression-resistant buffer members (630) are vertically arranged, and all the compression-resistant buffer members (630) are uniformly distributed in the buffer member region around the pier stud (110);

the inner cavity of the compression-resistant bumper (630) is filled with a non-Newtonian fluid.

6. The impact protection system for the temporary river box culvert according to claim 1, wherein the impact protection system comprises: the fender (500) is in a strip shape, the fender (500) is vertically arranged, and the fender (500) is distributed on the surface of the pier column (110) in an array shape;

fender (500) are including buffer (510) that the cross-section is "V" shape trough-like, and the both edges of this buffer (510) are outwards extended respectively in order to form installation department (520), the opening orientation of buffer (510) pier stud (110) surface, two installation department (520) are fixed respectively and are leaned on pier stud (110).

7. The impact protection system for the temporary river box culvert according to claim 1, wherein the impact protection system comprises: the box culvert guardrail (400) is fixedly connected with the pier stud (110) or/and the capping beam (120) through guardrail supports, and the box culvert guardrail (400) is provided with two guardrail supports corresponding to each group of pier studs (110) and capping beams (120), namely a first guardrail support (430) and a second guardrail support (420);

wherein the first guardrail support (430) is fixedly connected between the pier stud (110) and the box culvert guardrail (400), and the second guardrail support (420) is fixedly connected between the capping beam (120) and the box culvert guardrail (400).

8. The impact protection system for the temporary river box culvert according to claim 1, wherein the impact protection system comprises: the sticking and protecting device comprises a flexible lapping strip (300), one end of the lapping strip (300) is connected with an anti-collision armor, and the other end of the lapping strip (300) is connected with a balance weight;

the overlapping strips (300) span the box culvert (100), and the anti-collision armor and the counter weight respectively hang and lean against the side walls of two sides of the box culvert;

the anti-collision armor is attached to the side wall of the box culvert and has energy-absorbing deformability.

9. The impact protection system for the Yangjiang overhead box culvert of claim 8, wherein: the anti-collision armor is formed by assembling at least one layer of anti-collision rubber strips (200), each anti-collision rubber strip (200) comprises a groove-shaped rubber strip (210), two edges of each rubber strip (210) extend outwards to form a leaning part (220), and notches of all the rubber strips (210) face the side wall of the box culvert;

at least one layer of the anti-collision rubber strips (200) are arranged and connected along the width direction to form the anti-collision armor.

10. The near-river overhead box culvert impact protection system of claim 9, characterized in that: the anti-collision armor comprises at least two layers of anti-collision rubber strips (200) which are arranged in a stacked mode, and the adjacent edges of any two adjacent anti-collision rubber strips (200) in the same layer are connected;

at least two anti-collision rubber strips (200) on the innermost layer are arranged, and the leaning parts (220) of the anti-collision rubber strips (200) on the innermost layer lean against the corresponding side walls of the box culvert;

the anti-collision rubber strips (200) of any two adjacent layers are arranged in a staggered manner, and the number of the anti-collision rubber strips (200) positioned on the outer layer is one less than that of the anti-collision rubber strips (200) positioned on the inner layer adjacent to the outer layer;

except for the innermost layer, the two attaching parts (220) of the anti-collision rubber strips (200) on any layer respectively abut against the outer side surfaces of the groove bottoms of the adjacent two anti-collision rubber strips (200) positioned on the inner sides of the attaching parts and are connected with the outer side surfaces.