WO2020232981A1

WO2020232981A1 - Bridge deck drain pipe device for bridge and construction method

Info

Publication number: WO2020232981A1
Application number: PCT/CN2019/115009
Authority: WO
Inventors: 张光桥; 刘东美; 孔祥波; 赵艳; 王小龙; 杨荣泉; 范效滨; 王凯
Original assignee: 山东省路桥集团有限公司
Priority date: 2019-05-21
Filing date: 2019-11-01
Publication date: 2020-11-26
Also published as: CN110042753A

Abstract

The present invention provides a bridge deck water drain pipe device for a bridge and a construction method. According to the bridge deck water drain pipe device for the bridge, a waterproof layer I, a lower asphalt concrete layer, and a surface asphalt concrete layer are sequentially paved on a bridge deck of the bridge from bottom to top; the bridge deck water drain pipe device for the bridge comprises a water drain pipe reserved hole, a water drain pipe, and a water drain pipe tray, wherein the water drain pipe reserved hole runs through the bridge, the water drain pipe is provided in the water drain pipe reserved hole, and a grouting space is reserved between the water drain pipe reserved hole and the water drain pipe; the water drain pipe tray is sleeved outside the water drain pipe, and the water drain pipe tray is in contact with the bottom of the bridge. The bridge deck water drain pipe device for the bridge can drain ponding, has a good waterproof effect, and prolongs the service life of the surface asphalt concrete layer.

Description

Bridge deck drain pipe device and construction method for bridge

Technical field

The invention relates to the technical field of bridge waterproofing, in particular to a bridge deck drain pipe device for bridges and a construction method.

Background technique

The discharge pipe is an important facility for bridge deck drainage. The gap between the discharge pipe and the reserved hole of the bridge cannot be effectively controlled when the conventional discharge pipe is installed, and the gap between the discharge pipe and the reserved hole of the bridge cannot be filled or filled. Uneven compaction and other phenomena make the bridge surface or asphalt pavement layer of the bridge seep down along the manhole cover during the operation of the bridge, and finally flow down through the reserved hole wall of the drain pipe, which will pollute the appearance of the bridge. .

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides a bridge deck drain pipe device for a bridge and a construction method.

One of the objectives of the present invention is to provide a bridge deck drain pipe device for bridges, which can remove accumulated water, has a good waterproof effect, and prolongs the service life of the surface asphalt concrete layer.

In order to achieve the above objectives, the present invention is achieved through the following technical solutions:

A bridge deck drain pipe device for bridges. The bridge deck is laid with a waterproof layer I, a lower asphalt concrete layer, and a surface asphalt concrete layer from bottom to top. The bridge deck drain pipe device includes a drain pipe reserved hole, a drain pipe and Discharge pipe pallet, where the reserved hole of the discharge pipe runs through the bridge, and the discharge pipe is set in the reserved hole of the discharge pipe, and there is a grouting space between the reserved hole of the discharge pipe and the discharge pipe; the discharge pipe tray is sleeved outside the discharge pipe, and The drain pipe tray is in contact with the bottom of the bridge.

On the basis of the bridge deck discharge pipe device for the bridge, the top of the discharge pipe adopts a bell mouth form with a wing plate, and the discharge pipe is evenly and symmetrically arranged with four ribs in one layer and two wing plates at the top of the discharge pipe. Notch, the notch is used for grouting.

On the basis of the bridge deck drain pipe device for the bridge, the top surface of the drain pipe tray is arranged obliquely and has the same inclination angle as the bottom surface of the bridge, and foam rubber is arranged between the tray and the bottom surface of the bridge.

On the basis of the bridge deck drain pipe device for the bridge, a waterproof layer II is arranged around the top of the drain pipe, the bottom of the manhole cover is embedded in the waterproof layer II, and the top surface of the manhole cover is lower than the surface asphalt concrete layer, and the periphery of the manhole cover is from bottom to top Set up gravel blind ditch and asphalt concrete on the surface of the manhole cover, and set the edge of the top surface of the manhole cover as a slope that collects water in the direction of the drain pipe. On the basis of the bridge deck drain pipe device for the bridge, a plurality of rectangular drains are intermittently arranged on the top surface of the manhole cover, and horizontal semicircular drain holes are arranged at the bottom of the side of the manhole cover.

The second objective of the present invention is to provide a construction method of a bridge deck drain pipe device for a bridge.

A construction method of the bridge deck drain pipe device for bridges includes the following steps:

1) Clean the surface of the completed bridge, set a temporary cover plate to cover the reserved hole of the drain pipe, and then pave the waterproof layer I and the lower asphalt concrete layer on the bridge surface in layers;

2) Measure and stake out the installation position of the drain pipe, cut the lower asphalt concrete layer and waterproof layer I at the location of the drain pipe to form a depression on the top of the drain pipe, remove the temporary cover; the size of the depression is 30-50mm larger than the size of the drain pipe manhole cover, and Clean up the depression;

3) Install the drain pipe, pass the drain pipe tray through the bottom of the drain pipe, and make close contact with the bottom of the bridge, and grouting between the reserved hole of the drain pipe and the drain pipe;

4) Pouring waterproof layer II around the top of the discharge pipe;

5) Install the manhole cover, the bottom of the manhole cover is embedded in the waterproof layer II, and the top surface of the manhole cover is lower than the surface asphalt concrete layer;

6) Pave the gravel blind ditch and asphalt concrete around the manhole cover from bottom to top around the manhole cover, and set the slope on the top surface of the manhole cover to collect water in the direction of the drain pipe;

7) Complete the installation of the entire drain pipe device.

The advantages of the present invention are:

1. Good controllability of installation and positioning: The ribs set around the drain pipe can ensure the minimum gap width between the drain pipe and the reserved hole to ensure the filling thickness.

2. Good filling effect: the drain pipe, reserved holes and the bottom drain pipe tray form a closed airtight space, and the cement grouting material can be grouted and filled through the slot of the drain pipe flange.

3. No pollution to the environment: the drain pipe tray can ensure that the bottom surface of the bridge deck is not polluted when filling with cement grout.

4. The horizontal drain hole at the bottom of the manhole cover can effectively remove the water accumulated between the asphalt concrete layers and prolong the service life of the asphalt concrete pavement.

Description of the drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, together with the embodiments of the present invention, are used to explain the present invention, and do not constitute a limitation to the present invention.

Figure 1 is a schematic diagram of the front view of the present invention.

Figure 2 is a schematic diagram of the structure of the drain pipe tray of the present invention.

Fig. 3 is a schematic cross-sectional view taken along the A-A direction of Fig. 2.

Fig. 4 is a schematic cross-sectional view taken along the B-B direction of Fig. 3.

Figure 5 is a schematic diagram of the structure of the drain pipe of the present invention.

Fig. 6 is a schematic diagram of the top view structure of the drain pipe of the present invention.

Figure 7 is a schematic front view of the manhole cover of the present invention.

Figure 8 is a schematic top view of a well cover of the present invention.

Figure 9 is a schematic diagram of step 1) of the construction method of the present invention.

Figure 10 is a schematic diagram of step 2) of the construction method of the present invention.

Figure 11 is a schematic diagram of step 3) of the construction method of the present invention.

Figure 12 is a schematic diagram of step 4) of the construction method of the present invention.

Figure 13 is a schematic diagram of step 5) of the construction method of the present invention.

Figure 14 is a schematic diagram of step 6) of the construction method of the present invention.

In the figure, 1. Bridge; 2. Waterproof layer; 3. Lower asphalt concrete; 4. Surface asphalt concrete; 5. Gravel blind ditch; 6. Post-cast surface asphalt concrete; 7. Waterproof layer II; 8. Manhole cover 9. Discharge pipe; 10. Discharge pipe tray; 11. Cement grout; 12. Reinforcement plate; 13. Wing plate; 14. Notch; 15. Rectangular discharge outlet; 16. Concavity; 17, Horizontal semicircle Drain hole.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

Referring to Figure 1, a bridge deck drainpipe device for bridges. The bridge deck of bridge 1 is laid with a waterproof layer I2, a lower asphalt concrete layer 3, and a surface asphalt concrete layer 4 from bottom to top. The bridge deck drainpipe device includes a drainpipe The reserved hole, the drain pipe 9 and the drain pipe tray 10, wherein the reserved hole of the drain pipe penetrates the bridge 1, and the drain pipe 9 is set in the reserved hole of the drain pipe, and there is grouting between the reserved hole of the drain pipe and the drain pipe 9. The drain pipe tray 10 is sleeved outside the drain pipe 9, and the drain pipe tray 10 is in contact with the bottom of the bridge 1.

Referring to Figures 5 and 6, the top of the discharge pipe adopts a bell mouth form with a wing plate 13, and four ribs 11 are arranged evenly and symmetrically around the discharge pipe. The arrangement of ribs 11 ensures that the discharge pipe 9 and the discharge pipe are reserved. A gap is reserved between the holes, and two notches 14 are symmetrically arranged on the wing plate at the top of the drain pipe.

Referring to Figure 1, Figure 2, Figure 3 and Figure 4, the top surface of the drain pipe tray is inclined and the angle is the same as the bottom surface of the bridge. The foam rubber is set between the drain pipe tray and the bottom surface of the bridge 1. The drain pipe tray can ensure the filling The bottom of the bridge deck is not polluted when cement grouting. The bottom of the drain pipe tray is retracted inward, and its diameter is slightly smaller than the outer diameter of the drain pipe. It is installed on the drain pipe and bears the weight of the upper filling material through the squeezing friction between the drain pipe and the drain pipe.

Referring to Figure 1, there is a waterproof layer II7 around the top of the drain pipe 9, the bottom of the manhole cover 8 is embedded in the waterproof layer II, and the top surface of the manhole cover 8 is lower than the surface asphalt concrete layer 4, and gravel blinds are set up around the manhole cover 8 from bottom to top The surface of the ditch and the manhole cover is covered with asphalt concrete 6, and the top surface edge of the manhole cover 8 is set as a slope that collects water in the direction of the drain pipe. The structure around the manhole cover is waterproofed, and the slope setting can improve the drainage effect.

Referring to Figures 7 and 8, a plurality of rectangular water outlets 15 are intermittently provided on the top surface of the manhole cover, and horizontal semicircular water discharge holes 18 are provided at the bottom of the side of the manhole cover.

1) With reference to Figure 9, clean up the surface of the completed bridge 1, set a temporary cover plate to cover the reserved holes of the drain pipe, and then pave the waterproof layer I2 and the lower asphalt concrete layer 3 on the bridge surface in layers;

2) With reference to Figure 10, measure and stake out the installation position of the drain pipe, cut the lower asphalt concrete layer 3 and waterproof layer I2 at the location of the drain pipe to form a depression 16 on the top of the drain pipe, remove the temporary cover; the size of the depression 16 is larger than the drain pipe manhole cover 8. The size is 30-50mm larger, and the depression 16 is cleaned;

3) With reference to Figure 11, install the drain pipe, pass the drain pipe tray 10 through the bottom of the drain pipe 9 and make close contact with the bottom of the bridge 1, and pour cement grout 12 between the reserved hole of the drain pipe and the drain pipe 9;

4) With reference to Figure 12, add waterproof layer II around the top of the drain pipe;

5) With reference to Figure 13, install the manhole cover, the bottom of the manhole cover is embedded in the waterproof layer II, and the top surface of the manhole cover is lower than the surface asphalt concrete layer 4;

6) With reference to Figure 14, lay gravel blind ditch and asphalt concrete 6 on the periphery of the manhole cover 8 from bottom to top, and set the top edge of the manhole cover 8 as a slope that collects water in the direction of the drain pipe;

7) Complete the installation of the entire drain pipe device.

Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it is still for those skilled in the art. The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

A bridge deck drain pipe device for a bridge. The bridge deck (1) is sequentially laid with a waterproof layer I (2), a lower asphalt concrete layer (3) and a surface asphalt concrete layer (4) from bottom to top, and is characterized by: the bridge The bridge deck discharge pipe device includes a reserved discharge pipe hole, a discharge pipe (9) and a discharge pipe tray (10). The reserved discharge pipe hole penetrates the bridge (1), and a discharge pipe (9) is set in the reserved discharge pipe hole. ), there is a grouting space between the reserved hole of the drain pipe and the drain pipe (9); the drain pipe tray (10) is set outside the drain pipe (9), and the drain pipe tray (10) is in contact with the bottom of the bridge (1) .
The bridge deck discharge pipe device for a bridge according to claim 1, characterized in that: the top of the discharge pipe adopts the form of a bell mouth with a wing plate, and the discharge pipe is evenly and symmetrically arranged with more than one layer of four ribs (11) around the discharge pipe. Two notches are symmetrically arranged on the wing plate of the top mouth.
The bridge deck spout device for a bridge according to claim 1, wherein the top surface of the spout tray is inclined at the same inclination angle as the bottom surface of the bridge, and foam rubber is arranged between the tray and the bottom surface of the bridge.
The bridge deck drain pipe device for a bridge according to claim 1, characterized in that: a waterproof layer II is provided around the top of the drain pipe (9), the bottom of the manhole cover (8) is embedded in the waterproof layer II, and the manhole cover (8) The top surface is lower than the surface asphalt concrete layer (4), gravel blind ditch and asphalt concrete (6) are arranged around the manhole cover (8) from bottom to top, and the top surface edge of the manhole cover (8) is set in the direction of the drain pipe The slope of the catchment.
The bridge deck drain pipe device for a bridge according to claim 4, wherein a plurality of rectangular drains are intermittently provided on the top surface of the manhole cover, and a horizontal semicircular drain hole is provided at the bottom of the side of the manhole cover.
A construction method of a bridge deck spout device for a bridge according to any one of claims 1 to 5, characterized in that it comprises the following steps:

1) Clean the surface of the completed bridge (1), set a temporary cover plate to cover the reserved hole of the drain pipe, and then pave the waterproof layer I (2) and the lower asphalt concrete layer (3) on the bridge surface in layers;

2) Measure and stake out the installation position of the discharge pipe, cut the lower asphalt concrete layer (3) and waterproof layer I (2) at the position of the discharge pipe to form a depression (16) on the top of the discharge pipe, remove the temporary cover; the size of the depression (16) The size of the manhole cover 8 is 30-50mm larger than that of the drain pipe, and the depression (16) is cleaned;

3) Install the drain pipe, pass the drain pipe tray (10) through the bottom of the drain pipe (9) and make close contact with the bottom of the bridge (1), and grouting between the reserved hole of the drain pipe and the drain pipe (9);

4) Pouring waterproof layer II around the top of the discharge pipe;

5) Install the manhole cover, the bottom of the manhole cover is embedded in the waterproof layer II, and the top surface of the manhole cover is lower than the surface asphalt concrete layer (4);

6) Laying gravel blind ditch and asphalt concrete (6) on the periphery of the manhole cover (8) from bottom to top, and set the top edge of the manhole cover (8) as a slope that collects water in the direction of the drain pipe;

7) Complete the installation of the entire drain pipe device.