JPS6143519B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tunnel waterproofing device.

When constructing a tunnel, it is desired that the completed tunnel not only be strong but also highly waterproof. The reason is that without waterproofing, water may seep or drip into the tunnel, promoting corrosion of bridges, rails, etc., regardless of whether it is a regular tunnel or an undersea tunnel. Not only that, but in the case of electric railway tunnels that have electrical wiring inside, water leakage may pose a danger.

In most cases, water leaks in tunnels from joints in the lining during tunnel construction and from cracks in the lining that occur for some reason after tunnel construction.

Conventionally, when water leaks from joints or cracks in the lining of a tunnel, a wider groove-shaped defect is created around the leakage area, and the defect is covered with a waterproof board to make the lining watertight. A method has been considered in which leakage water is drained to the outside by using the defect as a passageway.

Although this method can achieve a certain degree of waterproofing effect,
Not only limescale due to water leakage will adhere to the area around the water leakage area, but also foreign matter associated with the water leakage may also adhere to the area.
In addition, bacteria such as mold, bacteria, iron bacteria, and copper sulfate bacteria multiply extremely rapidly, and if left for a long period of time, the deposits and bacteria will accumulate and contamination will become significant, leading to the destruction of the waterproof board or the lack of water. Not only will the area no longer be able to fulfill its original role as a waterway, but there is also the risk that the lining will be eroded by bacteria.
Furthermore, a strange odor begins to waft inside the tunnel. This phenomenon is particularly noticeable in submarine tunnels and tunnels in hot spring areas.

In view of the above-mentioned conventional technology, the present invention prevents water from seeping into the tunnel even if water leaks from the joints of the lining after tunnel construction, and also eliminates water scale and foreign matter attached around the leakage area as necessary. The purpose of this device was to provide a tunnel waterproofing device that could extremely easily clean and remove bacteria, etc., and its configuration was as follows:
A gutter-like member is watertightly attached to the tunnel by covering the area around the water leakage area such as a joint or crack in the tunnel lining, or an area where there is a possibility of water leakage. The device is characterized by being equipped with a device that sprays water.

Next, an example of implementation of the present invention will be explained with reference to the drawings.

1 is a concrete pouring joint during lining construction of the tunnel t, 2 is a gutter-like member that is watertightly attached to the tunnel t to cover the joint 1 and its surroundings, and 3 is a number of appropriate places on the gutter-like member 2. The gutter-like member 3 covers the water leakage part to prevent water from flowing down into the tunnel t, and drains the water from the upper part of the tunnel t to a drainage part (not shown).
In addition, the water injection device 3 is used to wash off various substances adhering to the tunnel joint 1 and its surroundings, as well as the inside of the gutter-like member 3, as necessary. In some cases, a chemical solution or the like is sprayed to prevent the proliferation of bacteria, etc.
Therefore, in order to attach the gutter-like member 2 to the tunnel t in a watertight manner, for example, waterproof cushioning materials 4 are fixed in two rows on both sides of the periphery of the seam 1 on the surface of the tunnel t via an adhesive 5. Then, while caulking agent 6 is injected between the cushion materials 4, 4, both sides of the gutter-like member 2 are placed thereon, and the gutter-like member 2 is attached to the tunnel t with anchor bolts 7. The gutter-like member 2 mentioned above is preferably made of hard and flexible synthetic resin. Moreover, H in the figure is a water supply pipe.

If water leakage prevention work is carried out in the tunnel t as described above and the lower end of the joint 1 and the lower end of the gutter-like member 2 are communicated with the drainage part (not shown), the ground, etc. on the tunnel t can be Even if water flows out into the seam 1, the water flows down through the seam 1 and its surroundings, or falls onto the gutter-like member 2, flows down through the member, and is discharged to the outside of the tunnel t. tunnel t
There is no risk of it leaking inside.

If left as is for a long period of time, limescale from leaking water and foreign matter mixed into the water may adhere and accumulate around the seam 1 and inside the gutter-like member 2, and bacteria etc. Bacteria propagate and the flow of water becomes poor, which not only makes it impossible for the joint 1, its surroundings, and the gutter-like member 2 to function as a water passage, but also causes the gutter-like member to break depending on the situation.
There is a risk that a strange odor may drift inside the tunnel t, and furthermore, it may cause rapid corrosion of accessories such as overhead contact line foundation bolts and communication cables, so periodically or as necessary, spray water or bacteria from the water injection device 3. Foreign matter adhering to or accumulating on the joint 1, its surroundings, and the gutter-like member 2 may be washed away by spraying water mixed with a mold treatment agent.

In the above embodiment, the gutter-like member 2 was attached to the tunnel t without making any changes to the joint 1 of the tunnel t.
As shown in the figure, a groove-shaped defect A that is sufficiently wider than the seam 1 may be provided around the seam 1, and a gutter-like member 2 may be attached to the tunnel T as shown in the figures. .

That is, in FIG. 3, 8 is a cross-sectional block made of rubber or synthetic resin, and the block 8 is inserted into the defect A.
The gutter-like member 2 is placed on both sides of the tunnel T with a suitable adhesive or the like, and the gutter-like member 2 is attached to the tunnel T using the anchor bolt 7 with the block 8 interposed. Wear it.

On the other hand, in Fig. 4, 9 is a groove provided on both sides of the defect A, and 10 is a block made of rubber or synthetic resin fitted into the groove 9 with a sealant caulking agent 11 interposed therebetween. A gutter-like member 2 is arranged on the block 10, 1, and the gutter-like member 2 is connected to the blocks 10, 1 by an anchor bolt 7.
It is attached to the tunnel t with 0 interposed therebetween.

The present invention is as described above, and includes a gutter-like member that is watertightly attached to a tunnel by covering the periphery of water leakage parts such as joints and cracks in the tunnel lining, or parts where there is a possibility of water leakage. Since the gutter-like member is equipped with a device that sprays water around the leakage area, even if water flows out from the ground above the tunnel into the joints of the lining, the water will be There is no risk of the water flowing down along the joints, etc. and its surroundings, or falling onto the gutter-like member and flowing down the member, being discharged outside the tunnel, and seeping into the tunnel t, and the inside of the tunnel being dry. condition, and there is almost no occurrence of bacteria, mold, etc. In addition, if limescale from leaking water or foreign matter mixed into the water adheres and accumulates around the leaking part or inside the gutter-like members, or if bacteria and other bacteria breed, the flow of water may become poor or a strange odor may occur inside the tunnel. However, if you periodically spray water from a water injection device to wash away foreign matter that has adhered or accumulated around the leakage area and on the gutter-like members, the above-mentioned risk will almost disappear. , the gutter-like member becomes semi-permanent.

Furthermore, conventionally, cleaning the deposits in the tunnel required a lot of labor, but if the water injection device of the present invention is operated by remote control, significant labor savings can be achieved. I can do it.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Figure 1 is a front view of a part of the device of the present invention, Figure 2 is an enlarged cross-sectional plane view, and Figures 3 and 4 are cross-sectional enlarged views of other examples. It is. t...Tunnel, 1...Tunnel lining joint, 2...Gutter-shaped member, 3...Water injection device.

Claims (1)

[Claims] 1. A gutter-like member is attached to the tunnel in a watertight manner by covering the area around water leakage areas such as joints and cracks in the tunnel lining, or areas where there is a possibility of water leakage, and the gutter-like member is attached to the area around the water leakage area, etc. A waterproofing device for a tunnel, characterized in that a device for spraying water is attached to the tunnel.