CN204703956U - A kind of can the waterproof and water drainage system of comprehensive maintenance tunneling drain - Google Patents

Abstract

The utility model relates to an anti-drainage system capable of all-round inspection and maintenance of tunnel drainage pipes. The water leakage problem in a large number of tunnels will bring great harm to the safe operation of tunnels. In the utility model, a plurality of horizontal circular drainage pipes are arranged longitudinally along the inner side of the tunnel's primary sprayed concrete, and the preset water collection pipes in the primary sprayed concrete are connected to the circular drainage pipes; the bottom ends of both sides of the circular drainage pipes are connected to the longitudinal drainage pipes ; There is a longitudinal central drainage ditch pre-buried at the bottom of the tunnel center line, and a horizontal drainage pipe is arranged between the longitudinal drainage pipe and the central drainage ditch; the vertical drainage pipe is connected to the inner side of the primary lining, and the longitudinal pipe inspection pipe is connected at the end, and the longitudinal pipe inspection hole is formed at the end ; The junction of the longitudinal drainage pipe and the horizontal drainage pipe is connected to the inner side of the primary lining to connect the horizontal pipe inspection pipe, and the end is a horizontal pipe inspection hole. The utility model forms a perfect tunnel drainage and maintenance structure by arranging oblique and vertical maintenance pipes connected with the vertical drainage pipe and the horizontal drainage pipe, and has a perfect maintenance function.

Description

A waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes

technical field

    The utility model belongs to the technical field of tunnel drainage engineering, in particular to a waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes.

Background technique

my country is the country with the largest number of tunnels in the world. However, during the operation process, a large number of tunnels have water leakage problems, commonly known as "ten tunnels and nine leaks", which has brought great harm to the safe operation of tunnels. In cold regions, the tunnel was abandoned due to the freezing of seepage water. Analyzing the cause of the water leakage in the tunnel, the main reason is that the drainage system is blocked, and the water has no way out, which increases the water pressure behind the lining, resulting in water leakage. "General means no leakage", ensuring the smoothness of the tunnel drainage system is the fundamental measure to prevent tunnel water leakage. To achieve smooth drainage system, all-round maintenance is essential. Therefore, it is urgent to propose a simple, practical, reliable and reliable The tunnel drainage system and maintenance method for realizing the maintenance of the tunnel drainage system.

Contents of the invention

The purpose of this utility model is to provide a waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes, so as to realize all-round maintenance of tunnel longitudinal and horizontal drainage pipes and drainage ditches.

The technical scheme adopted by the utility model is:

A waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes, characterized in that:

On the inner side of the primary sprayed concrete of the tunnel, a plurality of horizontal circumferential drainage pipes are arranged along the longitudinal direction of the tunnel, and the preset water collection pipes in the primary sprayed concrete are connected to the circular drainage pipes;

The bottom ends on both sides of the circumferential drain pipe are connected to the longitudinal drain pipe;

A longitudinal central drainage ditch is pre-buried at the bottom of the tunnel centerline, and a horizontal drainage pipe is arranged between the longitudinal drainage pipe and the central drainage ditch;

An oblique longitudinal pipe inspection pipe is connected to the inner side of the primary lining from the longitudinal drainage pipe, and the end is a longitudinal pipe inspection hole;

The connection between the vertical drainage pipe and the horizontal drainage pipe is connected to the inner side of the primary lining to connect the oblique horizontal pipe inspection pipe, and the end is a horizontal pipe inspection hole.

Longitudinal lateral drainage side ditches are arranged on both sides of the road surface in the tunnel, and horizontal drainage pipes are arranged between the lateral drainage side ditches and the central drainage ditch;

A plurality of vertical lateral drainage maintenance wells are arranged longitudinally at intervals on the lateral drainage side ditch.

A plurality of vertical central drainage maintenance wells are arranged longitudinally at intervals on the central drainage ditch.

The longitudinal drainage pipe is connected with the longitudinal pipe maintenance pipe through a three-way joint;

The vertical drain pipe and the horizontal drain pipe are connected through a three-way joint;

The longitudinal drain pipe, the transverse drain pipe and the transverse pipe overhaul pipe are connected through a four-way joint.

The upper half of the longitudinal drainage pipe is a PVC pipe with holes.

The utility model has the following advantages:

1. In view of the difficulty in maintenance of the vertical and horizontal drainage pipes in the tunnel, by setting up oblique and vertical maintenance pipes connected with the vertical drainage pipes and horizontal drainage pipes, a complete tunnel drainage and maintenance structure is formed, with perfect maintenance functions.

2. This method is simple and easy to implement, does not require high technical quality of construction personnel, does not require professional training, is simple to operate, has obvious effects, and is low in cost.

Description of drawings

Fig. 1 is a cross-sectional layout diagram of the utility model.

Fig. 2 is a plan view of the utility model.

Fig. 3 is a perspective view of the utility model.

Fig. 4 is a schematic diagram of the inspection hole of the horizontal drainage pipe of the present invention.

In the figure, 1-circular drainage pipe, 2-longitudinal drainage pipe, 3-horizontal drainage pipe, 4-lateral drainage side ditch, 5-central drainage ditch, 6-longitudinal pipe inspection hole, 7-horizontal pipe inspection hole, 8-Lateral drain maintenance well, 9-Central drainage maintenance well.

Detailed ways

The utility model is described in detail below in conjunction with specific embodiments.

The utility model relates to a waterproof and drainage system capable of all-round inspection and maintenance of tunnel drainage pipes. A plurality of horizontal circular drainage pipes 1 are arranged on the inner side of the tunnel's primary sprayed concrete along the longitudinal direction of the tunnel, and the preset water collection pipes in the primary sprayed concrete connect to the ring The bottom of both sides of the circular drainage pipe 1 is connected to the longitudinal drainage pipe 2; the bottom of the center line of the tunnel is embedded with a longitudinal central drainage ditch 5, and a horizontal drainage pipe is arranged between the longitudinal drainage pipe 2 and the central drainage ditch 5 3. Longitudinal lateral drainage side ditches 4 are arranged on both sides of the road surface in the tunnel, and horizontal drainage pipes 3 are arranged between the lateral drainage side ditches 4 and the central drainage ditch 5 .

The vertical drainage pipe 2 is connected with an oblique longitudinal pipe inspection pipe to the inner side of the secondary lining, and the end is a longitudinal pipe inspection hole 6 . The junction of the longitudinal drainage pipe 2 and the horizontal drainage pipe 3 is connected to the inner side of the secondary lining to connect the oblique horizontal pipe inspection pipe, and the end is the horizontal pipe inspection hole 7 . The longitudinal drain pipe 2 is connected with the longitudinal pipe overhaul pipe through a three-way joint. The longitudinal drain pipe 2, the transverse drain pipe 3 and the transverse pipe overhaul pipe are connected through a four-way joint. A plurality of vertical lateral drainage maintenance wells 8 are longitudinally spaced on the lateral drainage side ditch 4 . A plurality of vertical central drainage maintenance wells 9 are longitudinally arranged at intervals on the central drainage ditch 5 .

The build construction process is:

1. After the excavation of the tunnel, the primary sprayed concrete is used for the construction of the lining. For the water leakage point or water seepage point, a 100-200cm water collection pipe is set to divert water to the circular drainage pipe 1;

2. Lay the longitudinal drainage pipe 2 behind the lining, and the slope is consistent with the longitudinal slope of the tunnel. The upper half of the vertical drainage pipe 2 is a PVC pipe with holes to facilitate the influx of surrounding rock water; the circular drainage pipe 1 and the longitudinal drainage pipe 2 are connected by a tee, and geotextiles and waterproof boards are laid. Longitudinal drain 2 wraps.

3. Set up a horizontal drainage pipe 3 at an interval of 20-40m. One end of the horizontal drainage pipe 3 is connected to the vertical drainage pipe 2, and the other end is connected to the side drainage side ditch 4 or the central drainage ditch 5. Pay attention to the horizontal drainage pipe 3 during construction. Protection from breakage or concrete grout pouring.

4. Pre-embedded vertical pipe inspection and maintenance, set up the oblique inspection pipe of the longitudinal drainage pipe 2 connected with the longitudinal drainage pipe 2, which has a certain height and is exposed on the inner surface of the lining. The pipe diameter is consistent with that of the longitudinal drainage pipe 2. The through pipe is connected with the vertical drainage pipe 2; it is arranged at a distance of 100m.

5. Pre-embed the inspection pipe of the horizontal pipe, which is connected to the vertical drainage pipe 2 and the horizontal drainage pipe 3 through a four-way pipe, has a certain height and is exposed on the inner surface of the primary lining. Horizontal pipe maintenance pipes can be installed on each horizontal drainage pipe 3, or one can be installed every 100m according to groundwater conditions.

6. Set up lateral drainage side ditch inspection wells 8 with a spacing of 150-200m.

7. Set the central drainage ditch inspection well 9 with a spacing of 150-200m.

8. Pouring the secondary lining concrete. During the pouring process, attention should be paid to the protection of the vertical, horizontal and vertical drainage pipes. The maintenance pipes should be temporarily blocked to prevent the grout from seeping into the drainage pipes; An openable plate is arranged at the exposed orifice to seal the orifice.

9. During inspection and maintenance, you can open the closing plate of the inspection hand orifice, and use the vertical drainage pipe inspection pipe and the horizontal drainage pipe inspection pipe for inspection.

10. The debris deposited in the pipeline is cleaned from the hand holes of the longitudinal pipe inspection pipe and the horizontal pipe inspection pipe, or is washed into the lateral side ditch or the central ditch, and then passed through the inspection of the lateral drainage side ditch or the central drainage ditch well, carry out maintenance, and clean up sundries, complete the maintenance work, and realize the unobstructed drainage system of the tunnel.

The content of the utility model is not limited to the examples listed, and any equivalent transformations taken by those skilled in the art to the technical solution of the utility model by reading the specification of the utility model are covered by the claims of the utility model.

Claims (4)

1. A waterproof and drainage system capable of overhauling tunnel drainage pipes in all directions, characterized in that: A plurality of horizontal circumferential drainage pipes (1) are arranged on the inner side of the primary sprayed concrete of the tunnel along the longitudinal direction of the tunnel, and the preset water collection pipes in the primary sprayed concrete are connected to the circular drainage pipes (1); The bottom ends on both sides of the circumferential drain pipe (1) are connected to the longitudinal drain pipe (2); A longitudinal central drainage ditch (5) is pre-buried at the bottom of the tunnel centerline, and a horizontal drainage pipe (3) is arranged between the longitudinal drainage pipe (2) and the central drainage ditch (5); The vertical drainage pipe (2) connects obliquely to the inner side of the primary lining to the longitudinal pipe inspection pipe, and the end is the longitudinal pipe inspection hole (6); The junction of the longitudinal drainage pipe (2) and the horizontal drainage pipe (3) is connected to the inner side of the initial lining to connect the oblique horizontal pipe inspection pipe, and the end is the horizontal pipe inspection hole (7). 2. A waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes according to claim 1, characterized in that: Longitudinal lateral drainage ditches (4) are arranged on both sides of the road surface in the tunnel, and horizontal drainage pipes (3) are arranged between the lateral drainage ditches (4) and the central drainage ditch (5); A plurality of vertical lateral drainage maintenance wells (8) are longitudinally arranged on the lateral drainage side ditch (4). 3. A waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes according to claim 2, characterized in that: A plurality of vertical central drainage maintenance wells (9) are arranged longitudinally at intervals on the central drainage ditch (5). 4. A waterproof and drainage system capable of all-round maintenance of tunnel drainage pipes according to claim 3, characterized in that: The longitudinal drainage pipe (2) is connected with the longitudinal pipe maintenance pipe through a three-way joint; The longitudinal drain pipe (2), the transverse drain pipe (3) and the transverse pipe maintenance pipe are connected through a four-way joint.