Tunnel clear water drainage device

Abstract

The utility model provides a tunnel clear water guiding and discharging device which comprises a flow guide pipe arranged below a water leakage position of a tunnel primary supporting face along a set guiding and discharging route, the top of the flow guide pipe is open to form a water inlet, one edge of the water inlet is tightly attached to the tunnel primary supporting face, and a lappet edge is integrally formed outwards on the edge of the flow guide pipe. A gap matched with the lappet edge is formed in the tunnel initial supporting surface, and the lappet edge is inserted into the gap; the outlet end of the guide pipe is matched with a clear water tank. The device is easy and convenient to install, convenient to operate and low in cost, solves the problem that tunnel primary support leakage water is difficult to collect and intensively guide and discharge, and achieves the purposes that clear water does not fall to the ground and clear water and sewage are discharged in a split-flow mode.

Description

Technical Field

[0001] The utility model belongs to the field of tunnel construction, and particularly relates to a device for draining clear water in a tunnel. Background Art

[0002] In current tunnel construction, for the clear water leaking from the initial support of the tunnel, a drainage board is usually used to drain and concentrate it into a sewage ditch set on the tunnel ground. This drainage board drainage method requires a large amount of waterproof board and other materials, resulting in a large amount of installation and removal work, high safety risks, and consuming a large amount of labor, with low efficiency. At the same time, this drainage method causes the leaked clear water to mix with the sewage generated during construction, resulting in environmental pollution. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a device for draining clear water in a tunnel, realizing the non-ground drainage of the clear water leaking from the initial support of the tunnel, and solving the problems of difficult drainage of clear water and easy mixing of clear water and sewage.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A device for draining clear water in a tunnel includes a diversion pipe arranged along a set drainage route below the water leakage part of the initial support surface of the tunnel. The top of the diversion pipe is open to form a water inlet. One edge of the water inlet is closely attached to the initial support surface of the tunnel. A flange is integrally formed outward at the edge of the diversion pipe. A gap matching the flange is provided on the initial support surface of the tunnel, and the flange is inserted into the gap.

[0006] A clear water tank is matched with the outlet end of the diversion pipe.

[0007] Further, the diversion pipe is a semi-circular PC hose;

[0008] A number of L-shaped positioning steel bars are arranged on the initial support surface of the tunnel along the extension direction of the diversion pipe below the diversion pipe. The L-shaped positioning steel bars and the initial support surface of the tunnel form a support groove, and the diversion pipe is positioned and supported by the support groove.

[0009] Further, the edge of the water inlet of the diversion pipe away from the initial support surface of the tunnel is in contact with the side wall of the support groove.

[0010] Further, a number of strip-shaped rib plates are arranged at equal intervals along the length direction of the bottom surface and / or the top surface of the flange; a number of arc-shaped rib plates are arranged at equal intervals on the outer surface of the diversion pipe.

[0011] Further, the number and width of the arc-shaped rib plates are the same as those of the strip-shaped rib plates, and the positions of the arc-shaped rib plates correspond to the positions of the strip-shaped rib plates.

[0012] Further, the flange is arranged radially along the diversion pipe.

[0013] Compared with the prior art, the tunnel clear water drainage device of the present utility model has the following advantages:

[0014] (1) This device is simple to install, convenient to operate, and low in cost, solving the problems of difficult collection and centralized drainage of seepage water in the initial support of the tunnel, and realizing the non-grounding of clear water and the separate discharge of clear water and sewage.

[0015] (2) In this device, the flange of the diversion pipe is inserted into the initial support surface of the tunnel, improving the collection and drainage effect of seepage water in the initial support of the tunnel.

[0016] (3) In this device, the diversion pipe adopts a semi-circular PC hose, and the diversion pipe is supported by a number of L-shaped positioning steel bars driven through the initial support surface of the tunnel, improving the convenience of disassembly and assembly of the device.

[0017] (3) In this device, strip-shaped rib plates are arranged at intervals on the flange of the diversion pipe, and arc-shaped rib plates are arranged at intervals on the outer surface of the diversion pipe, improving the self-strength of the diversion pipe and ensuring the smooth drainage of seepage water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of a tunnel clear water drainage device according to an embodiment of the present utility model;

[0020] Figure 2 is a three-dimensional view of the diversion pipe in an embodiment of the present utility model.

[0021] DESCRIPTION OF THE REFERENCE NUMERALS

[0022] 1 - diversion pipe; 11 - flange; 2 - L-shaped positioning steel bar; 3 - initial support surface of the tunnel; 4 - sewage discharge ditch; 5 - strip-shaped rib plate; 6 - arc-shaped rib plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0024] As Figure 1As shown in the figure, a clear water drainage device for tunnels includes a diversion pipe 1 arranged along a set drainage route below the water leakage part of the initial support surface 3 of the tunnel. The outlet end of the diversion pipe 1 is matched with a clear water tank. Since the leakage points of the initial support surface 3 of the tunnel are mostly located above the sewage discharge ditch 4 in the tunnel in terms of space, the diversion pipe 1 is located above the sewage discharge ditch 4, and the sewage discharge ditch 4 is used to discharge the sewage in the tunnel. The top of the diversion pipe 1 is open to form an inlet. One edge of this inlet is closely attached to the initial support surface 3 of the tunnel, and this edge is called the inner edge. At the inner edge, the diversion pipe 1 is integrally formed with a flange 11 facing outward, that is, towards the outside of the diversion pipe. The initial support surface 3 of the tunnel is provided with a gap matching the flange 11, and the flange 11 is inserted into this gap. The utility model collects the clear water leaked from the initial support surface of the tunnel through the drainage pipe 1, drains the clear water into the clear water tank, and then centrally discharges it outside the tunnel by the clear water tank, realizing the operation of non-contact drainage of clear water and separation of clear and dirty water for drainage. The setting of the flange 11 on the diversion pipe 1 in this device, and the insertion of the flange into the initial support surface 3 of the tunnel make the opening of the diversion pipe 1 seamlessly connected to the initial support surface 3 of the tunnel, enabling all the clear water at the leakage point of the initial support surface 3 of the tunnel to flow into the diversion pipe 1 through the inlet of the diversion pipe, improving the collection and drainage effect of clear water.

[0025] In the utility model, the diversion pipe 1 is a semi-circular PC hose, and the flange 11 is arranged along the radial direction of the diversion pipe 1. To ensure the smooth drainage of the diversion pipe, several L-shaped positioning steel bars 2 are driven along the extension direction of the diversion pipe 1 below the diversion pipe 1 on the initial support surface 3 of the tunnel. The initial support surface 3 of the tunnel serves as the stress point of the L-shaped steel bars. The L-shaped positioning steel bars 2 and the initial support surface 3 of the tunnel form a support groove, and the diversion pipe 1 is positioned and supported by this support groove. The outer edge of the inlet of the diversion pipe 1, that is, the edge far from the initial support surface 3 of the tunnel, is in contact with the side wall of the support groove.

[0026] To further improve the strength of the diversion pipe and its drainage effect, the structure of the drainage pipe 1 is as Figure 2 shown. Along the length direction of the bottom surface and / or the top surface of the flange 11 of the drainage pipe 1, several strip-shaped rib plates 5 are arranged at equal intervals. Several arc-shaped rib plates 6 are arranged at equal intervals on the outer surface of the drainage pipe 1; the arc-shaped rib plates 6 and the strip-shaped rib plates 5 can be made of resin parts or thin metal plate parts, and are respectively thermally bonded or adhesively connected to the drainage pipe. The number and width of the arc-shaped rib plates 6 are the same, and the positions of the arc-shaped rib plates 6 correspond to the positions of the strip-shaped rib plates 5. On the one hand, it realizes the winding and storage of the diversion pipe, and at the same time improves the strength of the diversion pipe 1 itself, facilitates the insertion of the flange 11 into the gap opened on the initial support surface 3 of the tunnel, and enables the diversion pipe 1 to maintain a semi-circular flow channel without deformation, thereby making its drainage smooth.

[0027] The specific construction steps are as follows:

[0028] 1. According to the water leakage part of the initial support surface 3 of the tunnel and the direction of drainage required, first plan the route of the drainage device, and then use a hand-held grinding wheel drill to cut the initial support surface 3 of the tunnel along the planned route to form a gap.

[0029] 2. After cutting is completed, install the drainage pipe 1 with the flange 11, and place the flange 11 into the cut gap.

[0030] 3. Drive the L-shaped positioning bar 2 below the drainage pipe 1 to support and fix the drainage pipe 1. After installing one drainage pipe section, install the next section. Adjacent two pipe sections are lap-connected or welded. The last pipe section corresponds to a clean water tank, or the last pipe section and the first pipe section respectively correspond to clean water tanks. Drain the leaked clean water into the clean water tank, and then centrally discharge it from the clean water tank outside the tunnel.

[0031] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clear water drainage device for tunnels, characterized in that: A diversion pipe (1) is arranged along a set drainage route at a position below the water seepage part of the primary support surface (3) of the tunnel. The top of the diversion pipe (1) is open to form a water inlet, and one edge of the water inlet is closely attached to the primary support surface (3) of the tunnel. A flange (11) is integrally formed outward at the edge of the diversion pipe (1). A gap matching the flange (11) is provided on the primary support surface (3) of the tunnel, and the flange (11) is inserted into the gap. A water tank is matched with the outlet end of the diversion pipe (1).

2. The water diversion and drainage device for tunnel clear water according to claim 1, characterized in that: The diversion pipe (1) is a semi-circular PC hose. A number of L-shaped positioning steel bars (2) are arranged on the primary support surface (3) of the tunnel along the extension direction of the diversion pipe (1) below the diversion pipe (1). The L-shaped positioning steel bars (2) and the primary support surface (3) of the tunnel form a support groove, and the diversion pipe (1) is positioned and supported by the support groove.

3. The water diversion device for clear water in a tunnel according to claim 2, characterized in that: The edge of the water inlet of the diversion pipe (1) away from the primary support surface (3) of the tunnel is in contact with the side wall of the support groove.

4. A tunnel clear water drainage device according to claim 2, characterized in that: A number of strip-shaped rib plates (5) are arranged at equal intervals along the length direction of the bottom surface and / or the top surface of the flange (11); a number of arc-shaped rib plates (6) are arranged at equal intervals on the outer surface of the diversion pipe (1).

5. The tunnel clear water diversion and drainage device according to claim 4, characterized in that: The arc-shaped rib plates (6) and the strip-shaped rib plates (5) are the same in number and width, and the positions of the arc-shaped rib plates (6) correspond to the positions of the strip-shaped rib plates (5).

6. The tunnel clear water diversion and drainage device according to claim 2, characterized in that: The flange (11) is arranged radially along the diversion pipe (1).

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