Tunnel anti-collapse drainage channel

Abstract

A tunnel anti-collapse drainage channel relates to the field of drainage devices. The drainage channel is mainly designed for solving the problems that an existing drainage channel is low in strength, a top cover may collapse after stones fall off, and the drainage effect is affected. The drainage device comprises a drainage groove, a supporting frame is arranged in the drainage groove, the lower end of the supporting frame is fixed to the middle of the arc-shaped groove bottom of the drainage groove, and an embedded block is fixed to the upper end face of the supporting frame; mounting grooves are symmetrically formed in the upper end faces of the front side wall and the rear side wall of the drainage groove, clamping blocks are arranged at the front end and the rear end of the lower surface of the top cover, an embedding groove is formed in the middle of the lower surface of the top cover, and the top cover is installed at the top of the drainage groove, that is, the two clamping blocks on the top cover stretch into the two mounting grooves in the top of the drainage groove. And the embedding block at the top of the supporting frame extends into the embedding groove in the middle of the top cover. A plurality of side water through holes are formed in the supporting frame, and a plurality of water drainage holes are formed in the top cover. The top cover has the advantages that stress strength can be increased, and water drainage is prevented from being affected by top cover collapse.

Description

Technical Field

[0001] The utility model relates to the field of drainage devices, and particularly to a tunnel anti-collapse drainage channel. Background Art

[0002] A tunnel is an engineering structure buried in the stratum. After the tunnel is built, the drainage channel inside can guide the accumulated water in the tunnel and discharge it outwards.

[0003] The drainage channel in the tunnel is a waterproof and drainage measure taken to ensure that the tunnel structure is not damaged due to seepage water, endangering the driving safety, corroding the equipment inside the tunnel, and reducing the service life of the structure. If due to external reasons, vibration occurs inside the tunnel and falling rocks appear, when the rocks fall onto the drainage channel, since there is no support in the central area of the top cover of the existing structure drainage channel and the strength is low, the top cover may collapse after the rocks fall, thus blocking the drainage channel and affecting its drainage effect. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a tunnel anti-collapse drainage channel that can prevent the top cover from collapsing and blocking the drainage channel, thereby affecting the drainage effect.

[0005] The purpose of the utility model is realized as follows: It includes a drainage trough, which is composed of an arc-shaped trough bottom, a front side wall and a rear side wall connected as a whole. An axial support frame is arranged in the drainage trough. The lower end of the support frame is fixed in the middle of the arc-shaped trough bottom of the drainage trough, and an upward protruding fitting block is fixed on the upper end surface of the support frame; the cross-section of the fitting block is trapezoidal.

[0006] Axial installation grooves opening upwards are symmetrically arranged on the upper end surfaces of the front side wall and the rear side wall of the drainage trough. The heights of the inner side walls (the side facing the support frame is the inner side) of the two installation grooves are lower than those of the outer side walls.

[0007] It also includes a top cover. Axially extending downward clamping blocks are symmetrically arranged at the front end and the rear end of the lower surface of the top cover. The specifications and dimensions of the clamping blocks are adapted to the specifications and dimensions of the installation grooves on the drainage trough; a trapezoid cross-section fitting groove recessed into the top cover is opened in the middle of the lower surface of the top cover. The top cover is installed on the top of the drainage trough, that is, the two clamping blocks on the top cover extend into the two installation grooves at the top of the drainage trough, and the fitting block at the top of the support frame extends into the fitting groove in the middle of the top cover.

[0008] A number of side water holes are arranged on the support frame, and a number of down water holes are arranged on the top cover.

[0009] The advantages of the present utility model are as follows: A support frame is installed in the drainage trough. When the staff places the top cover, while placing the symmetrically installed clamping blocks at the bottom of the top cover into the installation grooves, the fitting grooves opened at the bottom of the top cover are fitted and connected with the fitting blocks installed at the top of the support frame, so as to limit the top cover and provide support for its central area. When there is a situation of falling stones, due to the relatively uniform support at the bottom of the top cover, the stress intensity can be increased, preventing the top cover from collapsing, which may lead to the blockage of the drainage channel and affect the drainage effect. Moreover, the support frame installed at the bottom, being located at the center of the drainage trough, can evenly divide the drainage trough. When one side of the drainage trough is blocked, with the cooperation of multiple groups of side through holes opened inside, it can provide the ability to divert the water flow, preventing a large amount of dust and gravel from entering and affecting the internal drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is the structural schematic diagram of the present utility model;

[0011] Figure 2 is the cross-sectional structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following combines Figure 1 and Figure 2 to further describe the present utility model;

[0013] It includes a drainage trough 1, which is composed of an integrally connected arc-shaped trough bottom, a front side wall, and a rear side wall. An axial support frame 2 is provided in the drainage trough. The lower end of the support frame is fixed in the middle of the arc-shaped trough bottom of the drainage trough, and an upwardly protruding fitting block 3 is fixed on the upper end surface of the support frame; the cross-section of the fitting block is trapezoidal; the length of the support frame is the same as the length of the drainage trough.

[0014] Axial installation grooves 4 opening upwards are symmetrically opened on the upper end surfaces of the front side wall and the rear side wall of the drainage trough. The heights of the inner side walls (the side facing the support frame is the inner side) of the two installation grooves are lower than those of the outer side walls;

[0015] It further includes a top cover 5. Axially extending clamping blocks 6 are symmetrically provided at the front end and the rear end of the lower surface of the top cover. The specifications and dimensions of the clamping blocks are adapted to those of the installation grooves on the drainage trough; a trapezoid-section fitting groove recessed into the top cover is opened in the middle of the lower surface of the top cover. The top cover is installed on the top of the drainage trough, that is, the two clamping blocks on the top cover extend into the two installation grooves at the top of the drainage trough, and the fitting block 3 on the top of the support frame extends into the fitting groove in the middle of the top cover.

[0016] A number of side water through holes 7 are provided on the support frame, and a number of water discharge holes 8 are provided on the top cover.

[0017] Working principle: After the top cover is installed, since the fitting groove opened at the bottom of the top cover is fitted and connected with the fitting block at the top of the support frame, the support frame can provide support for the central area of the top cover. After the stone falls, the bottom support frame cooperates with the drainage groove to provide uniform support for it, which can increase the strength of the top cover and prevent the top cover from collapsing and causing blockage. The support frame divides the drainage groove into two parts. When one side of the drainage groove is blocked by gravel or dust fall, the water flow can flow through the side through hole into the other side of the drainage groove to prevent its drainage effect from being blocked.

[0018] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel anti-collapse drainage channel, comprising a drainage trough (1), the drainage trough consisting of an arc-shaped trough bottom, a front side wall and a rear side wall connected as one body, characterized in that: An axial support frame (2) is provided in the drainage groove, the lower end of the support frame is fixed to the middle of the arc-shaped groove bottom of the drainage groove, and an upwardly protruding engaging block (3) is fixed to the upper end surface of the support frame; the cross section of the engaging block is a trapezoid; The upper end surfaces of the front side wall and the rear side wall of the drainage groove are symmetrically provided with axial mounting grooves (4) with the opening facing upward, and the heights of the inner side walls of the two mounting grooves are lower than the heights of the outer side walls; It also includes a top cover (5), wherein the front and rear ends of the lower surface of the top cover are symmetrically provided with axially extending downwardly extending blocks (6), wherein the size of the blocks is adapted to the size of the mounting groove on the drain trough; a trapezoidal cross-sectional engaging groove recessed toward the inside of the top cover is provided in the middle of the lower surface of the top cover, wherein the top cover is mounted on the top of the drain trough, that is, the two blocks on the top cover extend into the two mounting grooves at the top of the drain trough, and the engaging block (3) at the top of the support frame extends into the engaging groove in the middle of the top cover; The support frame is provided with a plurality of side water holes (7), and the top cover is provided with a plurality of water holes (8).

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