Highway bridge subgrade pavement drainage structure

Abstract

The utility model discloses a highway bridge roadbed pavement drainage structure is applied to the shoulder side of roadbed, include: rainwater well, intercepting part, limiting portion and transition part, a plurality of rainwater wells set up in the shoulder side of roadbed, and the opposite side of rainwater well is provided with the communicating part, the intercepting part includes the grating of setting up in the top of rainwater well, and the grating bottom is provided with the blocking piece, and the inner wall of rainwater well is provided with the lead -in spare, the limiting portion sets up in the outside of rainwater well, and the transition part sets up in the opposite side of roadbed and limiting portion, the utility model discloses an intercepting part is set up in the top of rainwater well, and after rainwater enters rainwater well through transition part and intercepting part, the rainwater in intercepting part carries out the filtration flow guide through grating, blocking piece and lead -in spare, compares the single grating and carries out rainwater filtration, and the water inlet filtration of rainwater well is carried out through the collocation filtration design of grating, blocking piece and lead -in spare, and the possibility that the foreign matter in rainwater enters rainwater well is reduced.

Description

Technical Field

[0001] This utility model relates to the field of road engineering, and in particular to a drainage structure for roadbed and pavement of highway bridges. Background Technology

[0002] In the drainage system of highway bridge subgrade and pavement, rainwater wells are key water collection facilities. Their inlet filtration performance directly affects drainage efficiency and pipeline maintenance costs. Traditional rainwater wells mostly use a single grate or grid structure for preliminary filtration.

[0003] However, existing designs lack multi-layered interception mechanisms. In practical applications, when relying solely on grates for interception, vehicle debris (such as stones and rubber scraps) can easily pass through the grate grid and fall directly into the well, entering the pipe. Long-term accumulation of foreign objects can easily lead to pipe diameter reduction or even blockage.

[0004] Therefore, how to reduce the possibility of foreign objects in rainwater entering rainwater wells through multi-stage composite filtration design has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this utility model is to provide a drainage structure for the roadbed and pavement of highway bridges to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drainage structure for the roadbed and pavement of a highway bridge, applied to the shoulder side of the roadbed, comprising:

[0007] Rainwater wells, multiple rainwater wells are provided on the shoulder side of the roadbed, and the opposite sides of the rainwater wells are provided with connecting parts for rainwater diversion;

[0008] An interception section is used for filtering the inlet water of a rainwater well. The interception section includes a grate installed at the top of the rainwater well, a blocking member for blocking foreign objects is installed at the bottom of the grate, and an inlet member for rainwater infiltration is installed on the inner wall of the rainwater well.

[0009] A limiting part is provided on the outside of the rainwater well, and the limiting part is used to limit the load of the rainwater well;

[0010] A transition section is provided on the opposite side of the roadbed and the limiting section, and the transition section is used for the transition and diversion of rainwater.

[0011] Preferably, the connecting part includes a connecting pipe, and a plurality of the connecting pipes are disposed on opposite sides of the rainwater well, and the connecting pipes are connected to the inner cavity of the rainwater well.

[0012] Preferably, the blocking member includes:

[0013] A fixing frame is provided at the bottom of the grate;

[0014] An interception net is disposed on the opposite side of a fixed frame and is used to intercept foreign objects.

[0015] Elastic inserts, a plurality of such elastic inserts are symmetrically arranged on the top of the fixed frame, and the top of the elastic inserts are inserted and connected to the bottom of the grate.

[0016] Preferably, the bottom of the grate is symmetrically provided with locking grooves, which are used for the insertion and locking of the elastic inserts.

[0017] Preferably, the inlet includes water inlets, a plurality of which are arranged around the outside of the rainwater well, and the water inlets are used for the entry of seepage water.

[0018] Preferably, the limiting portion includes:

[0019] A concrete subbase is provided at the bottom of the storm drain and located on the side of the roadbed.

[0020] A crushed stone layer is provided on the side of the rainwater well and on top of the concrete foundation layer. The crushed stone layer is used for the initial positioning of the rainwater well.

[0021] An asphalt waterproof layer is provided on top of the crushed stone layer and located on the side of the rainwater well; the asphalt waterproof layer is used to prevent rainwater from seeping in.

[0022] A permeable layer is provided on top of the asphalt waterproof layer and located on the side of the rainwater well, and the permeable layer is used for rainwater to seep into the rainwater well.

[0023] Preferably, the transition portion includes:

[0024] A support layer is provided on the top of the shoulder of the roadbed;

[0025] A soil layer, which is disposed on top of the support layer;

[0026] A turf layer is provided on top of the soil layer and on the opposite side of the roadbed and the permeable layer.

[0027] The technical effects and advantages of this utility model are as follows:

[0028] This invention features an interception section at the top of the rainwater well. After rainwater enters the well through the transition section and the interception section, the rainwater in the interception section is filtered and guided by a grate, a blocking component, and a guide component. Compared to using a grate alone for rainwater filtration, this design uses a combination of a grate, a blocking component, and a guide component to filter the incoming water into the rainwater well, reducing the possibility of foreign objects entering the rainwater well. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the connection between the roadbed and the whole structure of this utility model.

[0030] Figure 2 This is a top view of the entire utility model.

[0031] Figure 3 This is a partial structural diagram of the interception part of this utility model.

[0032] Figure 4 This is a side view of the rainwater well of this utility model.

[0033] Figure 5 This is a cross-sectional view of the connection between the fixing frame and the grate of this utility model.

[0034] In the diagram: 1. Rainwater well; 101. Inlet hole; 2. Connecting pipe; 3. Roadbed; 4. Grate; 401. Locking groove; 5. Barrier component; 501. Fixing frame; 502. Interception net; 503. Elastic insert; 6. Limiting part; 601. Concrete subbase; 602. Crushed stone layer; 603. Asphalt waterproof layer; 604. Permeable layer; 7. Transition part; 701. Support layer; 702. Soil layer; 703. Turf layer. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1: This utility model provides the following... Figure 1-5 The roadbed and pavement drainage structure shown is applied to the shoulder side of the roadbed 3 and includes: a rainwater well 1, an interception section, a limiting section 6 and a transition section 7.

[0037] Specifically, multiple rainwater wells 1 are installed on the shoulder side of the roadbed 3. A connecting part for rainwater diversion is provided on the opposite side of the rainwater well 1. An interception part is used for water inlet filtration of the rainwater well 1. A limiting part 6 is provided on the outside of the rainwater well 1. The limiting part 6 is used for bearing limiting of the rainwater well 1. A transition part 7 is provided on the opposite side of the roadbed 3 and the limiting part 6. The transition part 7 is used for transition diversion of rainwater.

[0038] It should be noted that the interception part includes a grate 4 installed at the top of the rainwater well 1, a blocking member 5 for blocking foreign objects is installed at the bottom of the grate 4, and an inlet member for rainwater infiltration is installed on the inner wall of the rainwater well 1.

[0039] Specifically, the grate 4 is made of cast iron, and the rainwater well 1 is a reinforced concrete casting with a square cylindrical structure. The inlet includes a water inlet hole 101, and multiple water inlets 101 are arranged around the outside of the rainwater well 1. The water inlets 101 are used for the entry of seepage water.

[0040] Specifically, the connecting part includes a connecting pipe 2, and multiple connecting pipes 2 are arranged on opposite sides of the rainwater well 1. The connecting pipes 2 are connected to the inner cavity of the rainwater well 1.

[0041] It should be noted that the connecting pipe 2 is a polyvinyl chloride pipe. The end of the connecting pipe 2 is inserted and connected to the side of the rainwater well 1. A layer of polyvinyl chloride adhesive is applied to the outer surface of the insertion end of the connecting pipe 2, and then a layer of dry coarse sand is sprinkled on it. After curing for 20 minutes, a rough intermediate layer is formed. Then, cement mortar is used to build it into the concrete well wall. The diameter of the connecting pipe 2 is 50cm and the drainage slope is 0.15%.

[0042] Specifically, the barrier component 5 includes: a fixed frame 501, a barrier net 502, and an elastic insert 503;

[0043] It should be noted that the fixed frame 501 is set at the bottom of the grate 4, the interception net 502 is set on the opposite side of the fixed frame 501, the interception net 502 is used to intercept foreign objects, and multiple elastic inserts 503 are symmetrically arranged at the top of the fixed frame 501, with the top of the elastic inserts 503 interlaced and connected to the bottom of the grate 4.

[0044] Specifically, the fixed frame 501 is made of polypropylene plastic, the interception net 502 is made of stainless steel wire mesh, the side of the interception net 502 is fixed to the fixed frame 501 by injection molding, the filtration radius of the interception net 502 is 0.5cm, and the bottom of the grate 4 is symmetrically provided with locking grooves 401, which are used for the insertion and snapping of the elastic insert 503.

[0045] It should be noted that the filtration radius of the grate 4 is 1cm, the elastic insert 503 is made of copper alloy, the elastic insert 503 and the fixed frame 501 are fixed by injection molding, and the side of the elastic insert 503 is set as a wedge-shaped protrusion to engage with the inner wall of the locking groove 401.

[0046] Specifically, the limiting part 6 includes: a concrete cushion layer 601, a crushed stone layer 602, an asphalt waterproof layer 603, and a permeable layer 604;

[0047] It should be noted that the concrete subbase 601 is set at the bottom of the storm drain 1 and located on the side of the roadbed 3, the crushed stone layer 602 is set on the side of the storm drain 1 and located on top of the concrete subbase 601, and the asphalt waterproof layer 603 is set on top of the crushed stone layer 602 and located on the side of the storm drain 1; the asphalt waterproof layer 603 is used to prevent rainwater from seeping down, and the permeable layer 604 is set on top of the asphalt waterproof layer 603 and located on the side of the storm drain 1.

[0048] Specifically, the gravel layer 602 is used for the initial positioning of the rainwater well 1, the permeable layer 604 is used for rainwater to seep into the rainwater well 1, the asphalt waterproof layer 603 prevents rainwater from seeping into the gravel layer 602, and the permeable layer 604 is made of pebbles, which is used for rainwater to seep into the inlet hole 101 and finally fall into the inner cavity of the rainwater well 1.

[0049] Example 2: This utility model provides a transition section 7, which is applied to the drainage structure of the roadbed and pavement of the highway bridge in Example 1.

[0050] Specifically, the transition section 7 includes: a support layer 701, a soil layer 702, and a turf layer 703;

[0051] It should be noted that the support layer 701 is set on the top of the shoulder of the roadbed 3, the soil layer 702 is set on top of the support layer 701, and the turf layer 703 is set on top of the soil layer 702 and is located on the opposite side of the roadbed 3 and the permeable layer 604.

[0052] Specifically, the support layer 701 is a graded crushed stone cushion layer, which is made of crushed stone of different particle sizes in a certain proportion (such as 5-10mm, 10-20mm, 20-40mm, etc.) and artificially graded and mixed, which has better compaction and stability. The position of the turf layer 703 is 1.5cm lower than the position of the roadbed 3.

[0053] In actual use, by setting an interception section at the top of the rainwater well 1, rainwater enters the rainwater well 1 through the transition section 7 and the interception section. The rainwater in the interception section is filtered and guided by the grate 4, the blocking member 5 and the inlet member. Compared with using the grate 4 alone for rainwater filtration, this design uses the combination of grate 4, interception net 502 and water inlet hole 101 to filter the incoming water of the rainwater well 1, reducing the possibility of foreign objects in the rainwater entering the rainwater well 1.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highway bridge subgrade pavement drainage structure applied to a shoulder side of a subgrade body (3), characterized by, include: Rainwater well (1), a plurality of rainwater wells (1) are provided on the shoulder side of the roadbed (3), and the opposite side of the rainwater wells (1) is provided with a connecting part for rainwater diversion; The interception section is used for the inlet filtration of the rainwater well (1). The interception section includes a grate (4) set on the top of the rainwater well (1). The bottom of the grate (4) is provided with a blocking member (5) for blocking foreign objects. The inner wall of the rainwater well (1) is provided with an inlet member for rainwater infiltration. A limiting part (6) is provided on the outside of the rainwater well (1), and the limiting part (6) is used to limit the load of the rainwater well (1); The transition section (7) is provided on the opposite side of the roadbed (3) and the limiting section (6), and the transition section (7) is used for the transition and diversion of rainwater.

2. A highway bridge subbase pavement drainage structure according to claim 1, characterized in that, The connecting part includes a connecting pipe (2), and a plurality of the connecting pipes (2) are arranged on opposite sides of the rainwater well (1), and the connecting pipes (2) are connected to the inner cavity of the rainwater well (1).

3. The highway bridge subbase pavement drainage structure according to claim 1, wherein, The blocking element (5) includes: A fixing frame (501) is provided at the bottom of the grate (4); An interception net (502) is disposed on the opposite side of the fixed frame (501) and is used to intercept foreign objects; Elastic inserts (503), a plurality of elastic inserts (503) are symmetrically arranged on the top of the fixed frame (501), and the top of the elastic inserts (503) are inserted and connected to the bottom of the grate (4).

4. A highway bridge subbase pavement drainage structure according to claim 3, wherein The bottom of the grate (4) is symmetrically provided with locking grooves (401), which are used for the insertion and snapping of the elastic insert (503).

5. The highway bridge subbase pavement drainage structure according to claim 1, wherein, The inlet includes a water inlet (101), and a plurality of the water inlets (101) are arranged around the outside of the rainwater well (1), the water inlets (101) being used for the entry of seepage water.

6. A highway bridge subbase pavement drainage structure according to claim 1, wherein The limiting part (6) includes: A concrete subbase (601) is provided at the bottom of the storm drain (1) and located on the side of the roadbed (3); Crushed stone layer (602), the crushed stone layer (602) is disposed on the side of the rainwater well (1) and located on the top of the concrete cushion layer (601), the crushed stone layer (602) is used for the initial positioning of the rainwater well (1); An asphalt waterproof layer (603) is provided on top of the crushed stone layer (602) and located on the side of the rainwater well (1); the asphalt waterproof layer (603) is used to prevent rainwater from seeping in. A permeable layer (604) is provided on top of the asphalt waterproof layer (603) and located on the side of the rainwater well (1). The permeable layer (604) is used for rainwater to seep into the rainwater well (1).

7. A highway bridge subbase pavement drainage structure according to claim 6, wherein The transition section (7) includes: A support layer (701) is provided on the top of the shoulder of the roadbed (3); Soil layer (702), which is disposed on top of support layer (701); A turf layer (703) is provided on top of the soil layer (702) on the opposite side of the roadbed body (3) from the permeable layer (604).

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