KR100734227B1 - Resin reinforcement method for joint of menhole and the joint structure using the same - Google Patents

Abstract

The present invention relates to a sewer pipe for discharging and collecting living sewage and factory sewage, and a mutual junction of manholes formed in these sewer pipes.

By reinforcing and joining the manhole to the sewer pipe with a reinforcement plate and hardened resin, it is possible to make a more solid bond as well as watertight joining of the manhole and sewage pipe so that no external soils or foreign substances can be introduced, and internal sewage and rainwater are not leaked. Resin reinforcement method and the bonded structure using the same.

Manhole, sewer pipe, resin reinforcement, reinforcement plate, joint, water expansion rubber ring

Description

Resin reinforcement method for joint of menhole and the joint structure using the same}             

1 is an exploded perspective view of a manhole junction according to the present invention

Figure 2 is a cross-sectional view of the manhole junction according to the present invention

3A to 3F are process diagrams of exemplary embodiments of a manhole junction according to the present invention;

Figure 3a is a process diagram for inserting the sewer pipe on one side of the manhole

Figure 3b is a process diagram for attaching the reinforcement plate to the junction of the manhole in which the sewer pipe is inserted

3c is a process diagram for connecting the reinforcement plate before and after each other

3d is a process diagram for sealing the reinforcement plate and the sewer pipe to each other

Figure 3e is a process chart for forming the inlet and exhaust ports on both side reinforcement plate

Figure 3f is a cross-sectional view of the manhole junction completed by curing the reinforcement resin injected through the injection hole

Explanation of symbols on the main parts of the drawings

1,1 ': water-expandable rubber ring 2: sewer pipe

3: manhole 4: bonding hole

5,5 ': Rubber packing 6,6': Reinforcement plate

7,7 ': Fixing hole 8,8': Fixing bolt

9,9 ': fixing nut 10: epoxy curing layer

11: hardening resin layer 12: injection tube

13: exhaust pipe

The present invention relates to a sewer pipe for discharging and collecting living sewage and factory sewage, and a mutual connection part of a manhole formed in these sewer pipes, in particular, forming a separate space at the junction of the sewer pipe and the manhole to inject and harden the reinforcement resin. By making the tight coupling between the manhole and the sewer pipe while making a tight watertight joint to the joint, the resin reinforcement method of the manhole joint is a joint structure using the same and a tight watertight joint without any gaps or cracks.

In general, sewage pipes are buried from each discharge source to a sewage treatment plant in order to collect and reprocess domestic sewage or factory sewage.

The manhole is formed in each section of the sewer pipe, and the manhole is to be inspected and cleaned through the manhole, and the manhole plays a role of introducing rainwater and the like at the same time as the sewer pipe is inspected. .

Therefore, the manhole and the sewer pipe should be joined to each other, and these joints are usually connected to each other by concrete mortar.

However, when the concrete mortar is bonded, there is a problem that cracks and gaps occur due to shrinkage while the concrete mortar is hardened, and the cracks and gaps allow soil or foreign matter to flow from the outside, while living sewage or rainwater Or factory sewage is leaked, which causes pollution of nearby ground.

The present invention has been made to eliminate the problems described above, by reinforcing the joints of the manhole and sewer pipes with a reinforcement plate and a cured resin, it is possible to bond more tightly, as well as watertight bonding of the manhole and sewer pipes to the external soil or foreign matter It is an object of the present invention to provide a resin reinforcing method and a joint structure using the same so that the inflow and internal sewage and rainwater is not leaked.

Hereinafter, preferred embodiments of the present invention will be described.

1 is an exploded perspective view of a manhole junction according to the present invention, and FIG. 2 is a cross-sectional view of the manhole junction according to the present invention.

First, look at the resin reinforcement method of the manhole and sewer pipe joints,

A sewer pipe insertion step of inserting a sewer pipe into which a plurality of water-expandable rubber rings are inserted at an end into a manhole joint hole;

A reinforcing plate forming step of closely contacting a reinforcing plate having a ring-shaped seal packing on one side thereof with the front and rear sides of the sewer pipe inserted into the manhole;

A reinforcing plate fixing step of tightly fixing the reinforcing plate by a plurality of connecting shafts;

A gap removing step of sealing the gap between the reinforcing plate and the sewer pipe with an epoxy resin;

An injection pretreatment step of forming an injection hole on one side of the reinforcement plate and an exhaust hole on the other reinforcement plate;

A resin injection step of injecting the cured resin through the injection hole;

As the injected resin becomes a curing bonding step of curing,

Looking at the structure of the junction portion made by the resin reinforcement method,

A sewer pipe 2 having a plurality of water expansion rubber rings 1 and 1 'inserted at an end thereof is inserted into a joining hole 4 on one side of the manhole 3, and a ring-shaped rubber packing 5 and 5' on one side thereof. Reinforcement plate (6) (6 ') is formed is inserted into the sewer pipe (2) to be in close contact with the inside and outside of the joining hole (4),

The spaced reinforcement plates 6 and 6 'are fixed to the plurality of fixing bolts 8 and 8' through coupling holes 7 and 7 'formed corresponding to the reinforcement plates 6 and 6'. To be held firmly by nuts (9) (9 '),

An epoxy hardened layer 10 is formed in the gap between the sewer pipe 2 and the reinforcement plates 6 and 6 ', and a hardened resin layer is formed in the inner space between the reinforcement plates 6 and 6' and the sewer pipe 2. (11) is formed to be in close contact with each other,

As resin used for the said hardening resin layer 10, polyester resin, P.U resin, resin mortar, etc. are used.

In the figure, reference numeral 12 denotes an injection pipe, and 13 denotes an exhaust pipe.

The resin reinforcement method and the bonding structure using the same as the above manhole junction part will be described in more detail by the working process as follows.

First of all, the manhole junction of the present invention is a sewer pipe (4) in the junction hole 4 as shown in Fig. 3A in a single or plural joint holes 4 for joining the sewer pipe 2 to one side of the manhole 3. A sewer pipe insertion process for inserting the end of 2) is performed, and the plurality of water-expandable rubber rings (1) (1 ') are inserted into the end of the sewer pipe (2).

At this time, the sewage pipe (2) is inserted in a state where a separate reinforcing plate (6 ') is inserted as shown in Figure 3b, of the sewage pipe (2) inserted into the joining hole (4) of the manhole (3) At the exposed end, a reinforcing plate forming process for inserting another reinforcing plate 6 to face each other is performed, but one side surface of the reinforcing plate 6 and 6 'is larger than the diameter of the joining hole 4. The ring-shaped rubber packings 5 and 5 'are formed so that the reinforcing plates 6 and 6' and the manhole 3 are closely attached by the rubber packings 5 and 5 '.

When the reinforcing plates 6 and 6 'are formed at both sides of the joining hole 4 of the manhole 3 through the reinforcing plate forming process, the reinforcing plates 6 and 6' must be firmly fixed to each other. In the reinforcing plate 6 and 6 ', a plurality of coupling holes 7 and 7' are formed, and as shown in FIG. 3C, the coupling holes 7 and 7 'have a relatively long length. Inserting the long fixing bolts (8) and (8 ') to fill the fixing nuts (9) and (9') at the ends of the fixing bolts (8) and (8 ') exposed to the other fixing plate. 6 ') is to perform the reinforcing plate fixing process to ensure that tightly fixed to each other.

After performing the reinforcing plate fixing process, the insertion gap of the reinforcing plate 6, 6 'and the sewer pipe 2 is generated, and the insertion gap has a separate epoxy hardened layer (as shown in FIG. 3D). 10) to seal the insertion gap formed in the reinforcing plate (6) (6 ') and the sewer pipe (2) by the solid epoxy hardened layer (10).

In this state, the reinforcing plates 6 and 6 ′ of both sides are subjected to a pre-injection treatment process of forming separate injection pipes 12 and exhaust pipes 13 so as to communicate with internal spaces, respectively, as shown in FIG. 3E. The injection pipe 12 is used to inject resin into the internal space, and through the exhaust pipe 13, the air occupying the internal space is injected into the internal space through the exhaust pipe 13. Will be discharged through.

Therefore, after performing the resin injection process of injecting the resin into the inner space through the injection tube 12, if a predetermined time elapses, the resin inside the cured as shown in Figure 3f to cure the resin layer 11 Since it is formed, the watertightness is ensured by the hardening resin layer 11, as well as tightly hardened, so that the manhole 3 and the sewer pipe (2) is more firmly fixed.

In particular, the water-expanded rubber ring (1) (1 ') inserted into the end of the sewage pipe (2) is expanded to a certain thickness by the moisture of the resin, thereby expanding and hardening the resin when the resin is hardened so that the internal space or gap At the same time, the sewer pipe 2 is prevented from being removed or moved from the fully cured resin hardened layer 11 at the same time.

In this case, the above-mentioned injection resin may be a polyester resin having excellent physical properties, PU resin or resin mortar, and the like, and may be used as long as the curing time is short and the resin material having excellent physical properties with little cracking and shrinkage is possible. .

If the above-mentioned injection tube 12 and the exhaust pipe 13 is removed in the cured state, the joining is completed, and the state is more robust and watertight.

The resin reinforcement method of the manhole junction of the present invention as described above and the joint structure using the same, as well as the joint of the manhole and the sewer pipe more tightly, as well as the watertight joint of the manhole and sewage pipe to allow the external soil or foreign matter inflow and internal sewage and rainwater It is effective to prevent this leak.

Claims (3)

A sewer pipe insertion step of inserting a sewer pipe into which a plurality of water-expandable rubber rings are inserted at an end into a manhole joint hole; A reinforcing plate forming step of closely contacting a reinforcing plate having a ring-shaped seal packing on one side thereof with the front and rear sides of the sewer pipe inserted into the manhole; A reinforcing plate fixing step of tightly fixing the reinforcing plate by a plurality of connecting shafts; A gap removing step of sealing the gap between the reinforcing plate and the sewer pipe with an epoxy resin; An injection pretreatment step of forming an injection hole on one side of the reinforcement plate and an exhaust hole on the other reinforcement plate; A resin injection step of injecting the cured resin through the injection hole; The resin reinforcing method of the manhole joint portion, characterized in that the hardened bonding process that the injected resin is cured. A sewage pipe 2 having a plurality of water-expandable rubber rings 1 and 1 'inserted at an end thereof is inserted into a joining hole 4 on one side of the manhole 3, and a ring-shaped rubber packing 5 and 5' on one side thereof. The formed reinforcing plate (6) (6 ') is inserted into the sewage pipe (2) to be in close contact with the inside and outside of the joining hole (4), The spaced reinforcement plates 6 and 6 'are fixed to the plurality of fixing bolts 8 and 8' through coupling holes 7 and 7 'formed corresponding to the reinforcement plates 6 and 6'. To be held firmly by nuts (9) (9 '), An epoxy hardened layer 10 is formed in the gap between the sewer pipe 2 and the reinforcement plates 6 and 6 ', and a hardened resin layer is formed in the inner space between the reinforcement plates 6 and 6' and the sewer pipe 2. (11) to form a resin reinforced joint structure of the manhole joint portion characterized in that the close contact with each other. The method of claim 2, Resin used in the cured resin layer 10 is a resin reinforced joint structure of the manhole junction portion, characterized in that the polyester resin.

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