CN211596260U

CN211596260U - Tunnel portal rainwater intercepting device

Info

Publication number: CN211596260U
Application number: CN201922046999.4U
Authority: CN
Inventors: 潘兵宏; 蔡圣晔; 周锡浈; 赵悦彤; 陈林圻
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-09-29
Anticipated expiration: 2029-11-22

Abstract

The utility model belongs to road traffic safety engineering field discloses a tunnel entrance to a cave rainwater intercepting device, has solved the unsmooth driving safety problem that causes of current tunnel access & exit road surface drainage. Comprises a base, a grating and a consolidation device; the top end of the base is provided with a drainage groove which is connected with the grid through a consolidation device; the base is a step-shaped reinforced concrete base. And simultaneously, the utility model also discloses two kinds of concrete structures of concreting the device, can effectively guarantee the stability of grid on the road surface. The utility model discloses can effectively intercept and remove the rainwater in the tunnel entrance to the hole, the security of the improvement tunnel entrance driving of great degree to and the stability and the security that rainy day curve tunnel entry vehicle went, avoid responding to the different traffic accidents that lead to the vehicle to sideslip and arouse of the inboard road surface coefficient of friction of tunnel entry.

Description

Tunnel portal rainwater intercepting device

Technical Field

The utility model belongs to road traffic safety engineering field relates to a tunnel entrance to a cave rainwater intercepting device.

Background

The water prevention and drainage of the road tunnel follows the principle of 'prevention, drainage, interception and blockage combination, comprehensive treatment according to local conditions', and ensures the normal use and driving safety of tunnel structures and operating equipment. The water flow in the range of the road surface outside the tunnel is a key factor influencing the driving safety. The existing tunnel is mostly provided with a one-way slope or a herringbone slope, water in a road surface range is unevenly distributed to two sides along a median strip edge, so that left and right wheel tracks in the same lane range are in different dry and wet states, friction coefficients are different, vehicle tires are easy to slip, and the situation is more obvious particularly at a curved tunnel inlet. Meanwhile, water outside the tunnel flows into the tunnel, carries silt and impurities into the tunnel, and possibly blocks a drainage system in the tunnel. The problem of traffic safety at the tunnel portal is an important road section for road traffic safety, so that effective water cutting and draining facilities at the road tunnel portal are necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not smooth shortcoming of tunnel entrance to a cave drainage among the above-mentioned prior art, provide a tunnel entrance to a cave rainwater intercepting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a rainwater intercepting device for a tunnel portal comprises a base, a grating and a consolidation device; the top end of the base is provided with a drainage groove which is connected with the grid through a consolidation device; the base is a step-shaped reinforced concrete base; the slope of the bottom of the drainage groove is the same as that of the arch cross slope of the tunnel portal road.

The utility model discloses further improvement lies in:

the consolidation device comprises a plurality of steel plates and a plurality of steel bars;

the steel plates are symmetrically arranged on two sides of the lower surface of the grid, one end of each steel plate is fixedly connected with the lower surface of the grid, the other end of each steel plate is connected with one end of each steel bar, and the other end of each steel bar penetrates through the base and is fixedly connected with the base;

the steel sheet is located inside the water drainage tank, and the reinforcing bar sets up with the steel sheet that links to each other is perpendicular.

The steel bar and the steel plate as well as the steel bar and the base are fixedly connected through anchor bolts.

And the reinforcing steel bars and the base are integrally cast.

The consolidation devices are a plurality of U-shaped steel bars;

a plurality of U shaped steel muscle symmetries set up inside the base of water drainage tank both sides, and U shaped steel muscle one end is worn out water drainage tank inner wall and is connected with the bars, and every U shaped steel muscle is inside all to set up the stirrup, and the stirrup both ends respectively with the both sides inner wall connection of U shaped steel muscle.

And the U-shaped steel bar, the stirrups and the base are integrally poured and formed.

The section form of the drainage groove is rectangular, trapezoidal, triangular or arc.

Compared with the prior art, the utility model discloses following beneficial effect has:

through setting up water drainage tank on the base, set up the grid on the water drainage tank, the grid is on the one hand with rainwater water conservancy diversion to water drainage tank, and then through water drainage tank drainage, and on the other hand blocks that the parcel was held under the arms in the rainwater, prevents that water drainage tank from blockking up, will the utility model discloses the setting can effectively be intercepted and is discharged along the synthetic slope and flow to the rainwater in the tunnel in tunnel, increases driving safety. Meanwhile, the base is a step-shaped reinforced concrete base, the step-shaped reinforced concrete base is used as a transition structure and forms a whole with a pavement structure, the cohesiveness of pavement is enhanced, the stress condition is improved, and the service life is prolonged; by reinforcing the ribs, the integral strength of the drainage facility is improved, the safety of a local tension weak area is ensured, and the bearing capacity meets the requirement of I-level load of the highway. The drainage channel is connected with the grating through the consolidation device, and the grating is consolidated on the base, so that the problems of driving safety and comfort caused by the movable grating are avoided. The tank bottom slope of water drainage tank is the same with the slope of tunnel portal road arch transverse slope, and then accelerates the drainage speed, avoids water accumulation in the water drainage tank, can solve single road bed drainage direction problem simultaneously.

Further, the consolidation device is a plurality of U shaped steel bars, and every U shaped steel bar is inside all to set up the stirrup, and the stirrup plays the supporting role, prevents that U shaped steel bar from producing great vertical deformation, promotes the stability ability of whole device.

Drawings

Fig. 1 is a sectional view of the overall structure of embodiment 1 of the present invention;

fig. 2 is a cross-sectional view of the overall structure of embodiment 2 of the present invention;

fig. 3 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 4 is a schematic view of the overall structure of embodiment 2 of the present invention.

Wherein: 1-a base; 2-a steel plate; 3-reinforcing steel bars; 4-a grid; 5-a drainage tank; 6-anchor bolt; 7-U-shaped steel bars; 8-stirrup.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings:

example 1

Referring to fig. 1 and 3, the utility model discloses a tunnel entrance to a cave rainwater intercepting device's a mode of realization, including base 1, consolidation device and grid 4, the consolidation device includes a plurality of steel sheets 2, a plurality of reinforcing bar 3. The base 1 is a step-shaped reinforced concrete base, the top end of the base 1 is provided with a drainage groove 5, the slope of the bottom of the drainage groove 5 is the same as that of a road arch transverse slope, and the cross section of the drainage groove 5 is in the shape of a rectangle trapezoid, a triangle, a circle, an arc and the like; 2 symmetrical welding at the both ends of 4 side surfaces of grid of a plurality of steel sheet, the cell wall contact of 2 one sides of steel sheet and water drainage tank 5, 3 one ends of reinforcing bar pass through anchor bolt 6 and the preset bolt pore fixed connection on 2 steel sheets, 3 other ends of reinforcing bar pass base 1 and are located 1 outsides of base, and reinforcing bar 3 all passes through anchor bolt 6 fixed connection with 1 outer wall of base, the mode that reinforcing bar 3 and step-shaped reinforced concrete's base 1 are connected adopts monolithic pouring, not reserve the pore.

Base 1 adopts step form section form, chooses for use the reinforced concrete material, can strengthen base 1 and tunnel entrance to a cave bituminous paving's cohesiveness to and this rainwater intercepting device's overall stability, obviously can be clear and definite, and base 1 adopts section forms such as rectangle, irregular figure also can realize the utility model discloses a purpose. The integrity of the grating 4 and the base 1 is improved by arranging the anchor bolts 6 on the inner side of the steel plate 2 and the outer side of the base 1 respectively. The bottom of the drainage channel 5 is made of cement concrete and is prefabricated into a whole with the reinforced concrete base 1, the gradient of the drainage channel is consistent with that of a road arch cross slope, and the problem of single roadbed drainage is solved.

Example 2

Referring to fig. 2 and 4, the utility model discloses another implementation of tunnel entrance to a cave rainwater intercepting device, including base 1, consolidation device and grid 4, except that the consolidation device other the same with embodiment 1. In the embodiment, the consolidation device comprises a plurality of U-shaped steel bars 7 and a plurality of stirrups 8, the U-shaped steel bars 7 are divided into two groups, and the notches of the two groups of U-shaped steel bars 7 are opposite and symmetrically arranged on two sides of the drainage groove 5; 7 one ends of U shaped steel muscle are located 1 insides of base, and 5 lateral walls of water drainage tank and 4 welded connection of grid are worn out to the other end, and the inside of each chromium U shaped steel muscle 7 all is equipped with stirrup 8, and the both ends of stirrup 8 and the both sides limit wall connection of U shaped steel muscle 7, stirrup 8 play the supporting role, prevent that U shaped steel muscle from producing great vertical deformation, and U shaped steel muscle 7 pours through stirrup 8 with base 1 and is connected.

The utility model discloses a working process:

the utility model discloses during the application of tunnel entrance to a cave rainwater intercepting device, before only needing to arrange the tunnel entrance to a cave with prefabricated finished product in, conventional road surface is laid on base 1. During rainfall, water is accumulated on the road surface, and rainwater flows from a high position to a low position along the synthetic gradient of the road, flows through the grating 4 to be intercepted, and is quickly discharged to a road drainage system along a cross slope at the lower part of the drainage groove 5. The device is applied to the front of the tunnel portal, so that the driving safety of the vehicle is improved; this device is equipped with the consolidation device that is used for base 1 and grid 4 to be connected in addition, effectively solves the vehicle dynamic load and causes grid 4 and the poor problem of road linking, and then improves the travelling comfort.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims

1. A rainwater intercepting device for a tunnel portal is characterized by comprising a base (1), a grating (4) and a consolidation device; the top end of the base (1) is provided with a drainage groove (5), and the drainage groove (5) is connected with the grating (4) through a consolidation device; the base (1) is a step-shaped reinforced concrete base; the slope of the bottom of the drainage groove (5) is the same as that of the tunnel portal road arch transverse slope.

2. The rainwater intercepting device of a tunnel portal according to claim 1, wherein said consolidation means comprises a plurality of steel plates (2) and a plurality of steel bars (3);

the steel plates (2) are symmetrically arranged on two sides of the lower surface of the grating (4), one end of each steel plate (2) is fixedly connected with the lower surface of the grating (4), the other end of each steel plate is connected with one end of each steel bar (3), and the other end of each steel bar (3) penetrates through the base (1) and is fixedly connected with the base (1);

inside steel sheet (2) were located water drainage tank (5), reinforcing bar (3) set up with steel sheet (2) that link to each other perpendicularly.

3. The tunnel entrance rainwater intercepting device according to claim 2, wherein the steel bar (3) and the steel plate (2) and the steel bar (3) and the base (1) are fixedly connected through an anchor bolt (6).

4. The rainwater intercepting device of a tunnel portal according to claim 2, wherein the reinforcing steel bars (3) are integrally cast with the base (1).

5. The rainwater intercepting device of tunnel portal according to claim 1, wherein said consolidation means is a plurality of U-shaped steel bars (7);

a plurality of U type reinforcing bar (7) symmetry sets up inside base (1) of water drainage tank (5) both sides, and U type reinforcing bar (7) one end is worn out water drainage tank (5) inner wall and is connected with grid (4), and every U type reinforcing bar (7) is inside all to set up stirrup (8), and stirrup (8) both ends respectively with the both sides inner wall connection of U type reinforcing bar (7).

6. The rainwater intercepting device of a tunnel entrance according to claim 5, wherein the U-shaped steel bars (7) and the stirrups (8) are integrally cast with the base (1).

7. The tunnel entrance rainwater intercepting device according to claim 1, wherein the cross-sectional form of the drainage channel (5) is rectangular, trapezoidal, triangular or arc-shaped.