Flood control traffic gate structure of slope road along river in urban area and construction method of flood control traffic gate structure

Abstract

The invention discloses a flood control traffic gate structure of a slope road along a river in an urban area, and relates to the technical field of flood control of water conservancy projects. The system comprises a flood control traffic gate section; the road along the river comprises a road arc ramp section and a road linear ramp section; the flood control traffic gate section comprises a reinforced concrete gate bottom plate, a reinforced concrete gate pier, a plain concrete cushion layer and a gate foundation cement soil replacement layer; the bottoms of the reinforced concrete gate piers are connected with a riverside road foundation, a riverside road outer side anti-flood wall is arranged on the outer side of the reinforced concrete gate pier on the left side, a riverside road inner side anti-flood wall is arranged on the inner side of the reinforced concrete gate pier on the right side, and openable herringbone steel gates are arranged on the opposite sides of the left reinforced concrete gate pier and the right reinforced concrete gate pier. Closing of the flood control ring and normal traffic along the river in the non-flood season are both considered, and the vehicle bumping phenomenon at the slope section is effectively avoided. The invention further relates to a construction method of the flood control traffic gate structure of the urban river slope road.

Description

Technical Field

[0001] The invention relates to the technical field of flood control of water conservancy projects, and more specifically to a flood control traffic gate structure for a sloping road along a river in an urban area. The invention also relates to a construction method of the flood control traffic gate structure for a sloping road along a river in an urban area. Background Art

[0002] Against the backdrop of climate change, extreme weather events occur frequently and the pressure on urban flood control is increasing. Urban flood walls, as basic engineering facilities for urban flood control, play a core role in defending against floods and protecting cities and residents from water hazards. At the same time, as an important part of public infrastructure, the ecological function value of embankment projects is also increasingly receiving attention and attention.

[0003] In the design and construction of urban flood control walls, in order to ensure the closure of the flood control circle and avoid the occupation of restricted basic farmland, the embankment line must cross the existing riverside roads. The riverside roads will have a certain longitudinal slope when passing through bridges and other buildings. The temporary blocking measures for the gap sections of the road during the flood season are labor-intensive and inefficient. The safety of the flood control closed circle cannot be guaranteed when the design flood level is high. The establishment of permanent projects is prone to motor vehicle jumping due to sudden changes in ground elevation at the road connection, affecting driving experience and traffic safety.

[0004] Therefore, it is of great significance to study a traffic gate structure and its construction method that can be well connected with the main structure of the urban flood control wall, take into account the closure of the flood control circle and the normal traffic along the river in the non-flood season, and avoid the phenomenon of vehicle jumping in the slope section. Summary of the invention

[0005] The first purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide a flood control traffic gate structure for a sloped road along a river in an urban area.

[0006] The second purpose of the present invention is to provide a construction method for the flood control traffic gate structure of the urban riverside slope road.

[0007] In order to achieve the above-mentioned first purpose, the technical solution of the present invention is: a flood control traffic gate structure for a sloped road along a river in an urban area, characterized in that: it includes a flood control traffic gate section arranged in the road along the river; the road along the river includes a road arc ramp section connected to the flood control traffic gate section and a road straight ramp section connected to the road arc ramp section; the flood control traffic gate section includes a reinforced concrete gate bottom plate connected to the road arc ramp section, reinforced concrete gate piers arranged on the left and right sides of the reinforced concrete gate bottom plate, a plain concrete cushion connected to the bottom surface of the reinforced concrete gate bottom plate, and a gate foundation cement soil replacement layer connected to the bottom of the plain concrete cushion layer;

[0008] The bottom of the reinforced concrete gate pier is connected to the foundation of the riverside road. A flood prevention wall outside the riverside road is arranged on the outer side of the reinforced concrete gate pier on the left, and a flood prevention wall inside the riverside road is arranged on the inner side of the reinforced concrete gate pier on the right. Openable and closable herringbone steel gates are arranged on the opposite sides of the left and right reinforced concrete gate piers.

[0009] In the above technical solution, the circular arc ramp section of the road is tangent to the top of the reinforced concrete gate bottom plate and the straight ramp section of the road. The circular arc ramp section of the road on the outer side of the reinforced concrete gate bottom plate is curved upward near one end of the straight ramp section of the road, and the circular arc ramp section of the road on the inner side of the reinforced concrete gate bottom plate is curved downward near one end of the straight ramp section of the road.

[0010] In the above technical solution, water-stop rubber strips are provided at the connection between the outer flood wall of the riverside road and the reinforced concrete gate pier, and at the connection between the inner flood wall of the riverside road and the reinforced concrete gate pier.

[0011] In the above technical solution, the second-phase gate slot concrete is pre-embedded in the top of the reinforced concrete gate bottom plate, and the second-phase gate slot concrete is located below the herringbone steel gate when it is closed.

[0012] In the above technical solution, trapezoidal tooth grooves are arranged at the bottom of the reinforced concrete gate bottom plate.

[0013] In the above technical solution, a hydraulic rod opening and closing device and an external control system for the opening and closing device are arranged on the top of the reinforced concrete gate pier, the hydraulic rod opening and closing device is connected to the miter steel gate, and the external control system for the opening and closing device is connected to the hydraulic rod opening and closing device.

[0014] In the above technical solution, the thickness of the plain concrete cushion layer is 10-20 cm, and the depth of the cement soil replacement layer of the gate foundation is 1-2 m.

[0015] In order to achieve the above second purpose, the technical solution of the present invention is: a construction method of a flood control traffic gate structure for a sloped road along a river in an urban area, characterized in that it comprises the following steps:

[0016] Step 1: Calculate the elevation and standard cross-sectional dimensions of the reinforced concrete gate pier, the outer flood wall of the riverside road, the inner flood wall of the riverside road, and the miter steel gate; determine the thickness of the plain concrete cushion layer and the depth of the cement soil replacement layer of the gate foundation based on structural calculations;

[0017] Step 2: Carry out foundation excavation construction for the flood control traffic gate section, and at the same time, carry out road breaking construction on the upstream and downstream sides of the reinforced concrete gate bottom plate, clean and level the surrounding ground, and carry out the replacement of the cement soil replacement layer of the gate foundation and the construction of the plain concrete cushion layer;

[0018] Step 3: After the strength of the cement soil replacement layer and the plain concrete cushion layer of the gate foundation reaches the design requirements, the reinforced concrete gate bottom plate is cast in formwork, and a trapezoidal tooth groove is set at the bottom of the reinforced concrete gate bottom plate; after the strength of the reinforced concrete gate bottom plate reaches the design requirements, the reinforced concrete gate pier, the outer flood wall of the river road, and the inner flood wall of the river road are cast in formwork, and water-stop rubber strips are pre-buried before casting the outer flood wall of the river road and the inner flood wall of the river road;

[0019] Step 4: After the strength of the reinforced concrete gate pier, the flood wall outside the river road, and the flood wall inside the river road reaches the design requirements, the herringbone steel gate, hydraulic rod opening and closing equipment, and the external control system of the opening and closing equipment are installed and debugged, and the surface of the herringbone steel gate is coated with anti-corrosion materials;

[0020] Step 5: Restore the broken road surface on the upstream and downstream sides of the reinforced concrete gate bottom plate. The construction of the circular ramp section of the road is required to be tangent to the top of the reinforced concrete gate bottom plate and the straight ramp section of the road. The top surface of the reinforced concrete gate bottom plate is paved with anti-skid material. It is recommended that the road surface restoration be controlled according to 100mm thick asphalt concrete, 200mm thick 6% cement crushed stone stabilization layer, 200mm thick graded crushed stone cushion layer, and compaction degree ≥98% of the bare soil tamping control.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1) The present invention takes into account the closure of the flood control circle and the normal traffic along the river during the non-flood season, and effectively avoids the phenomenon of vehicle jumping in the slope section.

[0023] 2) The main body of the present invention adopts a reinforced concrete structure, which has good overall structural stability, saves masonry materials and reduces loads, fully takes into account durability, economy and safety, is simple to construct, and has low risk of excavation along the river bank slope.

[0024] 3) The present invention forms a closed system with the urban flood control wall, which is easy to operate and use during the flood season, ensures normal traffic along the river during the non-flood season, saves space, and is convenient for maintenance.

[0025] 4) The present invention proposes a method for crossing the existing riverside road with a flood wall; the prior art uses temporary blocking measures for the gap section of the road during the flood season, which is labor-intensive and inefficient, while the present invention can fully ensure the safety of the flood control closed circle when the design flood level is high.

[0026] 5) The road along the river will have a certain longitudinal slope when passing through buildings such as bridges. Permanent projects are prone to motor vehicle jumping due to sudden changes in ground elevation at the road connection, affecting driving experience and traffic safety. The reinforced concrete gate bottom plate of the present invention is provided with a road arc ramp section on the upstream and downstream sides, which is tangent to the top of the reinforced concrete gate bottom plate and the straight road ramp section, which not only takes into account the closure of the flood control circle and the normal traffic along the river in the non-flood season, but also avoids the phenomenon of vehicle jumping in the slope section. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the planar structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the longitudinal section structure of the present invention.

[0029] Among them, 100-riverside road, 110-road arc ramp section, 120-road straight ramp section, 200-flood control traffic gate section, 210-reinforced concrete gate bottom plate, 211-gate slot second phase concrete, 212-trapezoidal tooth groove, 220-reinforced concrete gate pier, 221-outer flood control wall of riverside road, 222-inner flood control wall of riverside road, 223-waterstop rubber strip, 230-plain concrete cushion layer, 240-gate foundation cement soil replacement layer, 250-miking steel gate, 310-hydraulic rod opening and closing equipment, 320-opening and closing equipment external control system, 400-design flood level. DETAILED DESCRIPTION

[0030] The following detailed description of the implementation of the present invention is made in conjunction with the accompanying drawings, but they do not constitute a limitation of the present invention and are only given as examples. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.

[0031] Referring to the attached drawings, it can be seen that the flood control traffic gate structure of the urban riverside slope road is characterized by comprising a flood control traffic gate section 200 arranged in the riverside road 100; the riverside road 100 comprises a road arc ramp section 110 connected to the flood control traffic gate section 200 and a road straight ramp section 120 connected to the road arc ramp section 110; the flood control traffic gate section 200 comprises a reinforced concrete gate bottom plate 210 connected to the road arc ramp section 110, reinforced concrete gate piers 220 arranged on the left and right sides of the reinforced concrete gate bottom plate 210, a plain concrete cushion layer 230 connected to the bottom surface of the reinforced concrete gate bottom plate 210, and a gate foundation cement soil replacement layer 240 connected to the bottom of the plain concrete cushion layer 230;

[0032] The bottom of the reinforced concrete gate pier 220 is connected to the foundation of the riverside road 100, and an outer flood wall 221 of the riverside road is arranged on the outer side of the left reinforced concrete gate pier 220, and an inner flood wall 222 of the riverside road is arranged on the inner side of the right reinforced concrete gate pier 220. Openable and closable herringbone steel gates 250 are arranged on the opposite sides of the left and right reinforced concrete gate piers 220.

[0033] The road arc ramp section 110 is tangent to the top of the reinforced concrete gate bottom plate 210 and the road straight ramp section 120. The road arc ramp section 110 on the outside of the reinforced concrete gate bottom plate 210 is curved upward at one end close to the road straight ramp section 120, and the road arc ramp section 110 on the inside of the reinforced concrete gate bottom plate 210 is curved downward at one end close to the road straight ramp section 120; the top of the reinforced concrete gate bottom plate 210 is flat.

[0034] Water-stop rubber strips 223 are provided at the connection between the outer flood wall 221 of the riverside road and the reinforced concrete gate pier 220 , and at the connection between the inner flood wall 222 of the riverside road and the reinforced concrete gate pier 220 .

[0035] The top of the reinforced concrete gate bottom plate 210 is pre-buried with a gate slot second-stage concrete 211, and the gate slot second-stage concrete 211 is located below the herringbone steel gate 250 when it is closed.

[0036] A trapezoidal tooth groove 212 is provided at the bottom of the reinforced concrete gate bottom plate 210 .

[0037] A hydraulic rod opening and closing device 310 and an opening and closing device external control system 320 are arranged on the top of the reinforced concrete gate pier 220. The hydraulic rod opening and closing device 310 is connected to the herringbone steel gate 250. The opening and closing device external control system 320 is connected to the hydraulic rod opening and closing device 310. The opening and closing device external control system 320 is connected to the external power system through the reinforced concrete gate pier 220.

[0038] The plain concrete cushion layer 230 has a thickness of 10-20 cm, and the gate foundation cement soil replacement layer 240 has a depth of 1-2 m.

[0039] The construction method of the flood control traffic gate structure of the urban riverside slope road is characterized by comprising the following steps:

[0040] Step 1: Carry out geological exploration along the project line; calculate the elevation and standard cross-sectional dimensions of reinforced concrete gate pier 220, flood wall 221 outside the river road, flood wall 222 inside the river road, and miter steel gate 250; determine the thickness of plain concrete cushion layer 230 and the depth of cement soil replacement layer 240 of gate foundation based on structural calculation;

[0041] Step 2: Carry out foundation excavation construction for the flood control traffic gate section 200, and at the same time, carry out road breaking construction on the road surface on the upstream and downstream sides of the reinforced concrete gate bottom plate 210, clean and level the surrounding ground, and carry out the replacement of the gate foundation cement soil replacement layer 240 and the construction of the plain concrete cushion layer 230; the design indicators such as bearing capacity should meet the requirements of relevant engineering specifications;

[0042] Step 3: After the strength of the cement soil replacement layer 240 and the plain concrete cushion layer 230 of the gate foundation reaches the design requirements, the reinforced concrete gate bottom plate 210 is cast in a formwork, and a trapezoidal tooth groove 212 is set at the bottom of the reinforced concrete gate bottom plate 210; after the strength of the reinforced concrete gate bottom plate 210 reaches the design requirements, the reinforced concrete gate pier 220, the outer flood wall 221 of the river road, and the inner flood wall 222 of the river road are cast in a formwork, and the outer flood wall 221 of the river road and the inner flood wall 222 of the river road are pre-embedded with water-stop rubber strips 223 before casting; the outer flood wall 221 of the river road and the inner flood wall 222 of the river road adopt strength grades of C25 and above;

[0043] Step 4: After the strength of the reinforced concrete gate pier 220, the outer flood wall 221 of the riverside road, and the inner flood wall 222 of the riverside road reaches the design requirements, the herringbone steel gate 250, the hydraulic rod opening and closing device 310, and the opening and closing device external control system 320 are installed and debugged. The secondary design of the herringbone steel gate 250 and the seepage test under the design flood level of 400 and other related control indicators should meet the relevant specifications for steel gates of water conservancy projects. High-strength steel is used and the surface is coated with anti-corrosion materials;

[0044] Step 5: Perform road surface restoration construction on the broken roads on the upstream and downstream sides of the reinforced concrete gate bottom plate 210. The construction requirements of the road arc ramp section 110 are tangent to the top of the reinforced concrete gate bottom plate 210 and the road straight ramp section 120. The top surface of the reinforced concrete gate bottom plate 210 is paved with anti-skid material. It is recommended that the road surface restoration be controlled according to 100mm thick asphalt concrete, 200mm thick 6% cement crushed stone stabilization layer, 200mm thick graded crushed stone cushion layer, and compaction degree ≥98% of the plain soil tamping control; the arc radius and angle of the road arc ramp section 110 should meet the requirements of relevant road traffic engineering specifications.

[0045] Other parts not described belong to the prior art.

Claims

1. The flood control traffic gate structure of the sloped road along the river in the urban area is characterized by: The invention comprises a flood control traffic gate section (200) arranged in a riverside road (100); the riverside road (100) comprises a road arc ramp section (110) connected to the flood control traffic gate section (200) and a road straight ramp section (120) connected to the road arc ramp section (110); the flood control traffic gate section (200) comprises a reinforced concrete gate bottom plate (210) connected to the road arc ramp section (110), reinforced concrete gate piers (220) arranged on the left and right sides of the reinforced concrete gate bottom plate (210), a plain concrete cushion layer (230) connected to the bottom surface of the reinforced concrete gate bottom plate (210), and a gate foundation cement soil replacement layer (240) connected to the bottom of the plain concrete cushion layer (230); The bottom of the reinforced concrete gate pier (220) is connected to the foundation of the riverside road (100), the outer side of the reinforced concrete gate pier (220) on the left side is provided with an outer side flood protection wall (221) of the riverside road, and the inner side of the reinforced concrete gate pier (220) on the right side is provided with an inner side flood protection wall (222) of the riverside road, and the opposite sides of the left and right reinforced concrete gate piers (220) are both provided with an openable and closable herringbone steel gate (250).

2. The flood control traffic gate structure for the urban riverside slope road according to claim 1 is characterized by: The road arc ramp section (110) is tangent to the top of the reinforced concrete gate bottom plate (210) and the road straight ramp section (120), and the road arc ramp section (110) on the outside of the reinforced concrete gate bottom plate (210) is curved upward at one end close to the road straight ramp section (120), and the road arc ramp section (110) on the inside of the reinforced concrete gate bottom plate (210) is curved downward at one end close to the road straight ramp section (120).

3. The flood control traffic gate structure for the urban riverside slope road according to claim 1 is characterized by: Water-stop rubber strips (223) are provided at the connection between the outer flood wall (221) of the riverside road and the reinforced concrete gate pier (220), and at the connection between the inner flood wall (222) of the riverside road and the reinforced concrete gate pier (220).

4. The flood control traffic gate structure for the urban riverside slope road according to claim 1 is characterized by: The top of the reinforced concrete gate bottom plate (210) is pre-buried with gate slot second-stage concrete (211), and the gate slot second-stage concrete (211) is located below the herringbone steel gate (250) when it is closed.

5. The flood control traffic gate structure for the urban riverside slope road according to claim 4 is characterized by: A trapezoidal tooth groove (212) is provided at the bottom of the reinforced concrete gate bottom plate (210).

6. The flood control traffic gate structure for the urban riverside slope road according to claim 1 is characterized by: A hydraulic rod opening and closing device (310) and an opening and closing device external control system (320) are arranged on the top of the reinforced concrete gate pier (220); the hydraulic rod opening and closing device (310) is connected to the herringbone steel gate (250); and the opening and closing device external control system (320) is connected to the hydraulic rod opening and closing device (310).

7. The flood control traffic gate structure for the sloped road along the river in the urban area according to claim 1 is characterized by: The plain concrete cushion layer (230) has a thickness of 10-20 cm, and the gate foundation cement soil replacement layer (240) has a depth of 1-2 m.

8. The construction method of the flood control traffic gate structure of the urban river slope road is characterized by: The following steps are involved: Step 1: Calculate the elevation and standard cross-sectional dimensions of the reinforced concrete gate pier (220), the flood wall outside the river road (221), the flood wall inside the river road (222), and the herringbone steel gate (250); determine the thickness of the plain concrete cushion layer (230) and the depth of the cement soil replacement layer (240) of the gate foundation according to structural calculations; Step 2: excavating the foundation of the flood control traffic gate section (200), breaking the road surface on the upstream and downstream sides of the reinforced concrete gate bottom plate (210), cleaning and leveling the surrounding ground, and replacing the cement soil replacement layer (240) of the gate foundation and constructing the plain concrete cushion layer (230); Step 3: After the strength of the cement soil replacement layer (240) and the plain concrete cushion layer (230) of the gate foundation reaches the design requirements, the reinforced concrete gate bottom plate (210) is subjected to formwork casting construction, and a trapezoidal tooth groove (212) is provided at the bottom of the reinforced concrete gate bottom plate (210); after the strength of the reinforced concrete gate bottom plate (210) reaches the design requirements, the reinforced concrete gate pier (220), the outer flood wall (221) of the riverside road, and the inner flood wall (222) of the riverside road are subjected to formwork casting construction, and water-stop rubber strips (223) are pre-buried before casting the outer flood wall (221) of the riverside road and the inner flood wall (222) of the riverside road; Step 4: After the strength of the reinforced concrete gate pier (220), the flood wall outside the river road (221), and the flood wall inside the river road (222) reaches the design requirements, the herringbone steel gate (250), the hydraulic rod opening and closing device (310), and the opening and closing device external control system (320) are installed and debugged, and the surface of the herringbone steel gate (250) is coated with anti-corrosion material; Step 5: The road surface of the broken road upstream and downstream of the reinforced concrete gate bottom plate (210) is restored. The construction of the circular arc ramp section (110) of the road is required to be tangent to the top of the reinforced concrete gate bottom plate (210) and the straight ramp section (120) of the road. The top surface of the reinforced concrete gate bottom plate (210) is paved with anti-skid material. It is recommended that the road surface restoration be controlled by 100 mm thick asphalt concrete, 200 mm thick 6% cement crushed stone stabilization layer, 200 mm thick graded crushed stone cushion layer, and plain soil tamping with a compaction degree of ≥98%.

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