KR20100121206A

KR20100121206A - Manhole apparatus and method for constructing the same

Info

Publication number: KR20100121206A
Application number: KR1020090040258A
Authority: KR
Inventors: 김정학
Original assignee: 주식회사 신진수도
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-11-17

Abstract

PURPOSE: A manhole device and a construction method thereof are provided to move a water pipe or underground utilities located inside the manhole device. CONSTITUTION: A manhole device is composed of a manhole body(11) and a guide part(13). The manhole body is made of a metal material. A bottom cutting groove and side cutting grooves for mounting underground utilities are formed in the bottom and side surfaces of the manhole body. The guide part has a manhole inlet coupled to a manhole cover(16).

Description

Manhole apparatus and method for constructing the same}

The present invention relates to a manhole device and its construction method. In particular, the present invention relates to a manhole device and a method of constructing the manhole body which can be constructed without damage to water and sewage pipes and various underground buried materials and to facilitate maintenance work in the manhole body.

In general, the manhole is used to easily maintain or control various underground buried wire wiring devices such as the valve device of water and sewage pipes buried underground or communication cable or power cable. Most of the manholes are made of reinforced concrete bodies. do.

However, these concrete manholes take a long time to cure, which leads to a decrease in productivity. When installing, concrete tools such as hammers and chisels are used on both sides of the floor to fit the diameter of water and sewage pipes and underground works for power and communication. It should be dug up so that water and sewage pipes and underground burial can pass. This type of work varies depending on the skill of the operator, and if the impact is improperly transmitted, cracks may be generated in the concrete body, which shortens the lifespan of the manhole. The cover covering the upper part thereof is made of concrete and the manhole cannot be covered with soil until the cover is cured.

In order to solve the various problems occurring in the concrete manhole as described above, the manhole made of metal steel plate appeared, 'manhole device' of the Republic of Korea Utility Model Registration No. 20-163575 and 'manhole device of the Korean Utility Model No. 20-291458 For example, the assembly type manhole device of the Republic of Korea Utility Model Registration No. 20-436633 is an example.

The manhole device of the Republic of Korea Utility Model Registration No. 20-163575 is an arc-shaped passage through which water and sewage pipes and various underground works pass and a manhole is formed in the center and the upper and lower open bodies and the upper part of the body It is composed of a guide that is mounted on the cover having a cover and a manhole cover that can be opened and closed.

The manhole device has a limitation in securing a large internal space that is easy to work with a metal steel plate, and the body and the cover are fastened by bolts, so the fastening state may be released by the load applied by the guide part and the soil. .

In addition, the 'manhole device' of the Republic of Korea Utility Model Registration No. 20-291458 has a manhole body having a passage in the bottom is formed of a metal square, the cover body having a manhole inlet to which the manhole cover is coupled to the upper part of the manhole body integrally It is formed, the cover body has a dome-shaped structure that is curved upward so that the force to withstand external stress is strong.

The manhole device has a wide internal space for work, but since the manhole body is open and the passage is not closed, water is introduced into the manhole device, that is, the inner space of the manhole body, thereby damaging the internal structure or the manhole. It makes the maintenance work in the equipment difficult.

And 'manufactured manhole device' of the Republic of Korea Utility Model No. 20-436633 is a structure that the body can be separated and assembled up and down, the manhole body is cut into the upper part and the lower body by cutting the middle part horizontally and each of these cutting parts The flange is formed so that they can be assembled and detached by bolting, and the guide part formed on the upper body so that the manhole cover is combined is formed to be shorter so that the diameter of the lower part is larger than the diameter of the manhole inlet where the manhole cover is combined as a whole. However, by separating the upper guide portion formed with a lower guide portion and a manhole inlet formed integrally on the upper surface of the upper body, the upper guide portion formed with a manhole inlet to the upper side of the lower guide portion can be assembled and separated.

The manhole device is sealed below the manhole body so that water does not flow from the outside, but in order to allow the water supply pipe or various underground works to pass through the manhole body, the water supply and sewage pipe or various underground works are cut before the manhole device is installed. After installing the manhole device, there is a need to reconnect it.

In addition, in order to move the position of heavy water and sewage pipes and various underground works by using a hoist (hoist) in the manhole device, a fixing ring for fixing the hoist to the ceiling of the manhole device is formed. However, it is difficult to move water and sewage pipes and various underground works by using hoists due to the narrow inner space of the manhole device, and when the maintenance work in the manhole device touches the operator's head, it causes trouble to work. There is.

The present invention for solving the various problems as described above has an object to enable the construction of the manhole device so that the water supply and sewage pipes or underground buried material is located in the manhole device without cutting the water supply and sewage pipes or various underground burial.

In addition, an object of the present invention is to use the hoist to move the location of the water and sewage pipes and various underground buried materials located outside the manhole device, that is, in the manhole device buried underground.

The manhole device according to the present invention for achieving the above object, the manhole body is formed of a metal material, in the manhole device formed with a guide portion having a manhole inlet to which the manhole cover is coupled to the upper part of the manhole body In the bottom surface and side lower part of the manhole body, a lower cut groove and a side cut groove for seating the upper and lower sewer pipes and various underground burials are formed, respectively, In the seated state, a lower closing plate is welded to the lower incision groove, and a side closing plate is welded to the side incision groove, and the fixing flange is welded to the manhole body and the side finishing plate to surround the water and sewage pipe or various underground works. It is fixed, the packing is embedded between the fixing flange and the water and sewage pipe or various underground buried The sealing flange is characterized in that the sealing flange is fastened by bolts.

An inclined surface is formed on one surface of the fixing flange, and a pressing protrusion corresponding to the inclined surface is formed on one surface of the sealing flange.

The fixing flange is integrally welded and fixed to the manhole body before the manhole body is constructed.

The upper part of the manhole body is characterized in that the work hole that can enter the hook (hook) of the hoist (hoist) is formed.

The manhole inlet of the manhole body is characterized in that the ladder descending to the bottom surface of the manhole body is installed.

In addition, the construction method of the manhole device according to the present invention, the first step of installing the manhole body so that the sewage pipe or various underground buried is seated in the lower incision groove and the side incision groove of the manhole body; A second step of welding and sealing a lower closing plate and a side closing plate to the lower cutting groove and the side cutting groove; A third step of welding and fixing a fixing flange to the manhole body and the side finish plate; And a fourth step of putting a packing between the water supply and sewage pipe or various underground installations and the fixing flange, and sealing the bolt by fastening a sealing flange to the fixing flange. It is characterized by constructing a manhole body for maintenance of water supply and sewage pipes and various underground buried underground.

The fixing flange is integrally welded and fixed to the manhole body before constructing the manhole body.

Therefore, according to the present invention, the present invention cuts a part of the manhole body, the manhole body is placed so that the water and sewage pipes or various buried underground buried in the cut groove located in the lower portion of the manhole body, and weld the plate to the cut groove By sealing between the manhole body and the water supply and sewage pipes and various buried materials, there is an effect that the manhole device can be installed so that the water and sewage pipes or underground buried material is located in the manhole device without cutting the water supply and sewage pipes and various underground works.

In addition, the present invention is to form a work hole in the upper part of the manhole body so that the hook (hook) of the hoist can enter and exit, that is, the water supply and sewage pipes and various underground installations located in the manhole device embedded in the ground, underground from the ground This has the effect of moving the position.

As shown in FIGS. 1 to 4, the manhole device according to the present invention has a manhole body 11 made of a metal material having a circular shape, a square shape, or a mixture thereof, and a manhole on an upper surface of the manhole body 11. Guide part 13 provided with manhole inlet 12 to which lid 16 is coupled, and a hook of a hoist for carrying water and sewage pipes or various underground works 100 inside manhole body 11. Work hole 14 that can be formed is formed, the work hole 14 having a lid separate from the guide portion 13 may be extended to the ground by a separate guide portion. That is, the operator can only enter the inside of the manhole body 11 through the manhole inlet 12 of the guide portion 13 and also inside the manhole body 11 buried underground in the ground through the work hole 14. Water and sewage pipes in the various underground works 100, etc. can be lifted and moved. In the inside of the manhole body 11, a bolt 30 is assembled to the body 11 by a ladder 30 which descends from the manhole inlet 12 of the manhole body 11 to the bottom surface 20 of the manhole body 11 so that the body ( 11) By enabling the separation from the worker can easily secure the working space by separating and removing when necessary to secure the working space while entering the manhole conveniently using the ladder (30).

Since a plurality of lines of strength reinforcing ribs 15 are formed on the surface of the manhole body 11, ie, in the horizontal direction and in the vertical direction, the strength of the metal plate constituting the manhole body 11 is reinforced to prevent soiling. Deformation of the manhole body 11 does not occur even when the pressure is applied to the manhole body 11.

The lower center of the manhole body 11 is formed with an incision groove 19 in the same direction as the longitudinal direction of the water supply and sewage pipe or various underground buried water 100, the incision groove 19 is a sewage pipe or various underground buried water The lower incision groove 17 and the manhole body formed in the bottom surface 20 of the manhole body 11 as a space for placing a part of the water supply and sewage pipe or various underground buried materials 100 inside the manhole body 11. It can be divided into side incision grooves 18 formed on both sides of the (11).

The cut groove 19 has a width equal to or slightly larger than the diameter of the water and sewage pipe or various underground embeddings 100, and the upper end of each side cut groove 18 and the diameter of the water and sewage pipe or various underground embedding 100 It has an arc shape with the same or slightly larger diameter. That is, the cutting groove 19 may be produced as a cutting groove having a width to each other according to the diameter of the water supply and sewage pipe or various underground buried water (100).

One side of the manhole body 11 is provided with a fresh water tank 21 at a lower height than the bottom surface 20 of the manhole body 11, which is introduced from the outside despite sealing the respective parts of the manhole body 11 As a space for collecting water, the water level sensor for detecting the water level of the fresh water tank 21 and the water level of the fresh water tank 21 may have a drain pump for discharging the water of the fresh water tank 21 to the outside.

The space between the lower incision groove 17 and the side incision groove 18 and the water supply and drainage pipe or various underground embeddings and the manhole body 11 is such that the water supply and drainage pipe or various underground embeddings 100 are seated in the incision groove 19. After the manhole body 11 is installed, it is sealed, which protects various devices located inside the manhole body 11 and prevents water from flowing into the manhole body 11 for easy maintenance. This is to avoid.

The lower incision groove 17 is sealed by welding of the lower closing plate 22 of a metal material having the same or wider area as the lower incision groove 17, and the side incision groove 18 is a side incision groove 17. It is closed by welding of a metal side finish plate 23 having an arc shape having a diameter equal to or larger than that of the upper and lower water pipes and various underground buried materials 100 on the upper portion thereof.

Since the side incision grooves 18 are located at both sides of the manhole body 11, respectively, between the manhole body 11 and the water supply and drainage pipe or various underground works 100 with sealing work by welding the side finishing plate 23. Although the sealing operation is performed on both sides of the manhole body 11, the operation is performed by the same method with the same structure, so that only one side will be described below.

Fixing flanges 24a and 24b are welded up and down on the side of the manhole body 11 which is in contact with the water supply and sewage pipe or various underground embedding 100 seated in the incision groove 19, and two fixing flanges 24a and ( 24b) can be welded after mounting the water supply and sewage pipes or various underground installations in the incision groove 19, in particular, the fixing flange 24a located on the upper seats the water and sewage pipe or various underground installations 100 in the incision groove (19) You may weld before.

Of course, the fixing flange 24b located below is welded to the manhole body 11 and the side finish plate 23 after the side finish plate 23 is welded.

A sealing flange 25a paired with the fixing flanges 24a and 24b in the fixing flanges 24a and 24b surrounding the water and sewage pipes and various underground embeddings 100 seated in the cutting grooves 19. 25b is fastened by a plurality of bolts 27 with the packing 26 embedded therebetween.

Here, in the process of fastening the sealing flanges 25a and 25b to the fixing flanges 24a and 24b, the packing 27 is pushed into the space between the fixing flanges 24a and 24b and the water supply and drainage pipe or various underground embeddings. In order to improve the tightness, the inclined surface 28 is formed in the fixing flanges 24a and 24b, and the pressing projection 29 corresponding to the inclined surface 28 is formed in the sealing flange 25a and 25b.

Hereinafter, a method of constructing the manhole body 11 in the basement will be described.

First, the worker digs a land in which water and sewage pipes and various underground works 100 are buried, and the water and sewage pipes and various underground works 100 are exposed to secure sufficient space for installing the manhole body 11.

Subsequently, the worker lowers the manhole body 11 in the space secured by the crane. At this time, the operator adjusts the position of the manhole body 11 so that the water supply and sewage pipe or various underground buried material 100 is seated in the cutting groove 19 of the manhole body 11.

After the water supply and sewage pipe or various underground works 100 are seated on the upper end of the cutting groove 19 of the manhole body 11, the worker welds the lower finishing plate 22 to the lower cutting groove 17 and the side cutting groove ( 18) to seal the side finish plate (23).

Then, the operator welds the fixing flange 24b corresponding to the fixing flange 24a to the manhole body 11 and the side finish plate 23.

Then, the packing 26 is sandwiched between the water supply and drainage pipe or various underground buried materials 100 and the fixing flanges 24a and 24b, and the sealing flanges 25a and 25b are attached to the fixing flanges 24a and 24b. Tighten the bolts (27).

Finally, the worker fills the soil to complete the construction of the manhole body (11).

1 is an exploded perspective view of a manhole according to the present invention before being buried underground.

2 is a perspective view of a manhole according to the present invention in a state buried underground.

Figure 3 is a perspective view showing a major portion of the manhole according to the present invention disclosed in Figures 1 and 2.

4 is a cross-sectional view of the manhole according to the present invention disclosed in FIGS. 1 and 2.

-Explanation of symbols for the main parts of the drawings

11: manhole body 12: manhole entrance

13: guide part 14: worker

15: rib for strength reinforcement 16: manhole cover

17: lower incision groove 18: side incision groove

19: incision groove 20: bottom surface

21: fresh water tank 22: lower finishing plate

23: side finish plate 24a, 24b: fixed flange

25a, 25b: sealing flange 26: packing

27: bolt 28: inclined surface

29: pressure projection 30: ladder

Claims

In the manhole device 11 is formed of a metal material, the manhole device having a guide portion 13 having a manhole inlet 12 to which the manhole cover 16 is coupled to the upper part of the manhole body 11,

The lower incision groove 17 and the side incision groove 18 for seating the upper and lower sewer pipes and various underground buried materials 100 are formed in the bottom surface 20 and the lower side of the manhole body 11, respectively, In the state in which the water supply and sewage pipe or various underground embedding materials 100 are seated in the groove 17 and the side incision groove 18, the lower closing plate 22 is in the lower incision groove 17, and the side in the side incision groove 18. The closing plate 23 is welded and sealed, and fixing flanges 24a and 24b are welded and fixed to the manhole body 11 and the side finishing plate 23 so as to surround the water supply and sewage pipe or various underground works 100. Sealing flanges (25a) and (25b) to the fixing flanges (24a) and (24b) in a state in which the packing (26) is inserted between the fixing flanges (24a) and (24b) and the water supply and drainage pipe or various underground embedding materials (100). ) Is a manhole device, characterized in that the fastening by bolts (27).

The method of claim 1,

The inclined surface 28 is formed on one surface of the fixing flanges 24a and 24b, and the pressing projection 29 corresponding to the inclined surface 28 is formed on one surface of the sealing flanges 25a and 25b. Manhole device characterized by.

The method according to claim 1 or 2,

Manhole device, characterized in that the fixing flange (24a) is integrally welded and fixed to the manhole body (11) before the construction of the manhole body (11).

The method of claim 1,

Manhole device, characterized in that the work hole (14) is formed in the upper portion of the manhole body (11) can be hooked (hook) of the hoist (hoist).

The method of claim 1,

Manhole device, characterized in that the manhole inlet (12) of the manhole body (11) is detachably installed by bolting the ladder (30) to the manhole body (11).

A first step of installing the manhole body 11 so that the water supply and sewage pipe or various underground embeddings 100 are seated in the lower cutting groove 17 and the side cutting groove 18 of the manhole body 11;

A second step of welding and sealing the lower closing plate 22 and the side closing plate 23 to the lower cutting groove 17 and the side cutting groove 18;

A third step of welding and fixing the fixing flanges 24a and 24b to the manhole body 11 and the side finishing plate 23; And

A packing 26 is inserted between the water supply and drainage pipe or various underground embedding materials 100 and the fixing flanges 24a and 24b, and the sealing flanges 25a and 25b are bolted to the fixing flanges 24a and 24b. 27) a fourth step of sealing by tightening;

Construction method of the manhole device characterized in that the construction through the manhole body (11).

The method of claim 6,

The fixing flange (24a) is a construction method of the manhole device characterized in that the welded to the manhole body (11) integrally before fixing the manhole body (11).