JPH0734521A - Remade basin and sanitary sewage pipeline - Google Patents

Abstract

PURPOSE:To remake a concrete basin without open excavation in site and enhance workability and reduce construction cost. CONSTITUTION:A remade basin 10 is inserted into a concrete basin 32 in such a fashion that a short pipe 48 may be housed in a basin main body 12. A universal joint 32 is connected to an existing downstream pipe 42. A receptacle 54 of the short pipe 48 is connected to an existing pipe 40 by using a flow inlet of the basin main body 12 after the connection is arranged. Then, mortar is filled up around the remade basin 10, thereby fixing the remade basin 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rehabilitating pit and a sewer pipe, and more particularly to a rehabilitating basin and a sewer pipe disposed between an existing upstream pipe and an existing downstream pipe, for example.

[0002]

2. Description of the Related Art As shown in FIG. 9, a concrete basin 1 is generally provided near the boundary between private sewage and public sewage, and an upstream pipe 2 and a downstream pipe 3 are connected to the concrete sewage 1. ing. When such a concrete basin 1 deteriorates, rainwater and the like that have penetrated into the ground will join the joints 4 and 5
There is a risk that the amount of treated water will flow into the concrete basin 1 from above and exceed the amount of treated water in the sewer main 6.

Therefore, in the past, the inflow of water was prevented by repairing the joints 4 and 5 with mortar or replacing the aged concrete tub 1 with a new one.

[0004]

However, the method of repairing the joint with mortar has a problem that the water cannot be surely stopped, and the method of replacing the concrete stake with a new one has high construction cost and workability. There was a problem that it was not applicable if the site could not be excavated due to bad traffic conditions.

Therefore, a main object of the present invention is to provide a rehabilitating basin which can be simply and reliably refurbished at low cost.

[0006]

A first aspect of the present invention is a rehabilitating basin for rehabilitating an aged concrete basin, which has a main body having an inlet and an outlet corresponding to the upstream and downstream directions of the concrete basin. And a connection joint connected to the outlet for connecting the existing downstream pipe connected to the concrete container and the container body.

A second aspect of the present invention comprises a vessel having an upstream side pipe line, a main body having an inflow port, an outflow port and a cleaning port, and a connecting joint for connecting the outflow port to the downstream side pipe line. It is a sewer pipe that connects and connects the inflow port and the upstream pipe line.

[0008]

For example, when rehabilitating an aged concrete basin, a short pipe is housed in the rehabilitation basin, the rehabilitation basin is inserted into the concrete basin, and the connection joint is connected to the existing downstream pipe.
Then, the short pipe is exchanged using the inflow port of the rehabilitated pit, and the main body of the pit and the existing upstream pipe are connected (interchange connection) via the short pipe.

[0009]

According to the present invention, it is possible to rehabilitate a concrete stake easily and reliably at low cost without excavating the site. The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The rehabilitation basin 10 of this embodiment shown in FIG. 1 includes a main body 12 made of a synthetic resin such as vinyl chloride. Body 12
A cleaning port 14 is formed on the upper part of the main body 12, and an inlet 16 and an outlet 18 are formed on the upstream side (right side in FIG. 1) and the downstream side (left side in FIG. 1) of the main body 12, respectively. A seal packing 20 made of foamed rubber or the like is attached to the inner peripheral surface of the inflow port 16, and the outflow port 1
A universal joint 22 is connected to 8. Universal joint 22
The outer surface of the core 44 includes a core 44 having a substantially spherical outer surface.
The receiving portion 26 having a substantially spherical inner surface is fitted. Receptor 2
A spout 28 is formed integrally extending from 6 and a seal packing 30 is fixed to the outer peripheral surface of the end of the spigot 28.

Such a rehabilitation basin 10 is used, for example, when rehabilitating a concrete basin 32 as shown in FIG. The concrete basin 32 includes a body 34,
Openings 36 and 38 are formed on the peripheral side surface of No. 4. An upstream pipe 40 and a downstream pipe 42 are joined to the openings 36 and 38 via a filler 44 such as mortar. An invert 46 is formed on the bottom of the main body 34.

When the concrete slab 32 is rehabilitated using the rehabilitating basin 10, the short pipe 48 is housed in the main body 12 of the rehabilitating basin 10 (FIG. 1). The short pipe 48 includes a substantially hollow cylindrical main body 50, and a seal packing 52 is fixed to an outer peripheral surface of one end of the main body 50, and this end is provided in the existing upstream pipe 4
0 (FIG. 2) is the insertion port 54. On the other hand, in the concrete stake 32, after the existing upstream pipe 40 is stopped by a water stop member (not shown), the invert 46 is crushed to secure a space for arranging the rehabilitated stake 10 inside the concrete stake 32. In addition, as shown in FIG.
The drainage pipe 60 in which 8 is formed is arranged so as to extend into the ground, and stones 62 are buried around the lower end portion of the drainage pipe 60.

Then, as shown in FIG. 3, the rehabilitation pit 10
(Fig. 1) is inserted into the concrete basin 32, the universal joint 22 (spout 28) is connected to the existing downstream pipe 42, and the short pipe 4
8 (spout 54) is connected to the existing upstream pipe 40. Thereafter, the mortar 64 is filled around the rehabilitation basin 10, whereby the rehabilitation basin 10 is fixed. Then, the water blocking member (not shown) mounted in the existing upstream pipe 40 is removed,
A start-up pipe 66 is connected to the cleaning port 14 of the rehabilitation basin 10, and a lid 68 is attached to the upper end of the start-up pipe 66. Note that the length of the retreaded basin 10 in the horizontal direction (the length in the left-right direction in FIG. 1) is set smaller than the diameter of the concrete pit 32 because it is necessary to insert the retreaded basin 10 into the concrete basin 32 (FIG. 2). It For example, in the case of FIG.
The length when the free angle is zero (in this case, the length in the left-right direction is the shortest) may be equal to or smaller than the diameter of the concrete stake 32.

According to this embodiment, the aged concrete stake 32 can be rehabilitated without excavating the site,
The workability can be improved and the construction cost can be reduced. Also,
It can be easily manufactured by combining an existing rod (main body 12) and an existing joint (universal joint 22). In the above-described embodiment, the universal joint 22 is connected to the outlet port 18 of the basin body 12 so as to correspond to the existing downstream pipe 42 that is inclined and installed.
2 is installed almost horizontally, etc., the universal joint 2
Instead of 2, a straight tubular joint 70 as shown in FIG. 4, for example, may be connected. A seal packing 72 is fixed to the outer peripheral surface of one end of the joint 70, and a rubber ring receptacle (or an adhesive receptacle) 74 is connected to the outflow port 18 at the other end.
Are formed.

Further, the rehabilitation basin 10 can be applied to the case where the site is opened and cut as shown in FIG. 5, for example. In this case, the ends of the existing upstream pipe 40 and the existing downstream pipe 42 can be made to project inside the cut-and-cut portion 76, so that the universal joint 22 and the short pipe 48 are bonded to each other in place of the spigot. Mouth (or rubber ring socket) 78 and 80 may be formed. Joining the socket 78 and the existing upstream pipe 40,
If the receiving port 80 and the existing downstream pipe 42 are joined, since the diameter of the pipe line is not reduced, it is possible to prevent a decrease in water permeability. When the site is excavated, the pebbles 82 are laid on the bottom of the excavation part 76, and the sand layer 84 is formed on the pebbles 82.
After the rehabilitation basin 10 is stabilized by, the earth and sand (not shown) is backfilled in the excavated portion 76.

Further, in each of the above-described embodiments, the short pipe 48 is exchanged at the inflow port 16 so as to be connected to the existing upstream pipe 40. However, as shown in FIG. 6, for example, the short pipe 48 is already installed. It may be exchanged in the upstream pipe 40 and connected to the inflow port 16 of the rehabilitation basin 10. When the short pipes 48 are exchanged by using the existing upstream pipes 40 in this way, it is not necessary to store the short pipes 48 in the rehabilitation basin 10 in advance, and therefore, it is also applicable when there are two or more existing upstream pipes 40. it can. However, in this case, it is necessary to use the container main body 12 having a plurality of inflow ports 16 corresponding to the existing upstream pipe 40.

In each of the above-mentioned embodiments, the rehabilitating pit 10 and the existing upstream pipe 40 are connected via the short pipe 48. As described above, the existing upstream pipe 40 is directly connected to the rehabilitation pit 10.
You may make it connect to the inflow port 16 of this. In addition to the case of rehabilitating the concrete basin 32, the present invention
It can also be applied to the case where a new cleaning port is provided in the middle of the sewer pipe. In this case, the existing upstream pipe 40 and the existing downstream pipe 4
Since 2 and 2 are at substantially the same level, for example, as shown in FIG. 8, a rod 86 or the like in which the pipe bottom of the inflow port 16 and the pipe bottom of the outflow port 18 are at substantially the same level can be used. This cell 86
Then, the inflow port 16 and the outflow port 18 of the main body 12 are formed as receiving ports, and the outflow port 18 has the short pipe 8 as a connecting joint.
8 are connected. Then, one end of the short pipe 88 is connected to the existing downstream pipe 42, and the inflow port 16 and the existing upstream pipe 40 are connected via the short pipe 90. On the outer peripheral surface of one end of the short pipes 88 and 90, the existing downstream pipe 42 and the existing upstream pipe 4 are provided.
A stopper portion 92 that defines the insertion length into 0 is formed, and a seal packing 52 is fixed to the tip end side of the stopper portion 92.

[Brief description of drawings]

FIG. 1 is an illustrative view showing one embodiment of the present invention.

FIG. 2 is an illustrative view showing a concrete stake to which the embodiment of FIG. 1 is applied.

FIG. 3 is an illustrative view showing a state where a concrete basin is rehabilitated using the embodiment of FIG.

FIG. 4 is an illustrative view showing another embodiment of the present invention.

5 is an illustrative view showing another example of use of the embodiment in FIG. 1. FIG.

FIG. 6 is an illustrative view showing a state where a short pipe is exchanged in an existing upstream pipe.

FIG. 7 is an illustrative view showing another usage example of the embodiment in FIG.

FIG. 8 is an illustrative view showing another embodiment of the present invention.

FIG. 9 is an illustrative view showing a conventional technique.

[Explanation of symbols]

 10,86… Rehabilitated basin 12… Mast main body 14… Cleaning port 16… Inflow port 18… Outflow port 22… Universal joint 32… Concrete basin 40… Existing upstream pipe 42… Existing downstream pipe 48,88,90… Short pipe

Claims (3)

[Claims] 1. A rehabilitating basin for rehabilitating an aged concrete basin, which is connected to the concrete basin having an inlet and an outlet corresponding to upstream and downstream directions of the concrete basin. A rehabilitation stile comprising a connection joint connected to the outflow port for connecting an existing downstream pipe and the stub body. 2. The rehabilitation stile according to claim 1, wherein a horizontal length including the stake body and the connection joint is selected such that it can be put into the concrete stake. 3. A flow box comprising: a main body having an upstream pipe line, an inflow port, an outflow port, and a cleaning port; and a connection joint for connecting the outflow port to the downstream pipe line. A sewage pipe line in which the inlet and the upstream pipe line are exchanged and connected.