KR100805555B1 - Sectional manhole using multi-divided segments - Google Patents

Abstract

A prefabricated manhole using multi-divided segments is provided to install a manhole regardless of the existing facilities in a manhole, to minimize traffic inconvenience by shortening a period of construction, and to heighten the construction quality of a manhole. A prefabricated manhole using multi-divided segments comprises a lower slab divided into two segments in the longitudinal direction to be formed in the rectangular shape, a wall(20) attached with two L-shaped segments(22) to be formed in the square-shape and installed on the lower slab in the perpendicular direction to the ground to form the side of a manhole, and an upper slab installed on the top of the wall and provided with a circular opening to install a manhole cover after installing a manhole, wherein horizontal connections(22a) are formed on the upper and lower parts of the wall and connected with the upper slab, the lower slab or other walls to improve adhesive strength and structural stability, vertical haunches(26) are installed to a part where the L-shaped segments adhere to each other to improve resistance against earth pressure, and rectangular pipe holes are formed to penetrate the side of the wall partially to make a pipe housing a cable, etc. pass through after installing a prefabricated manhole.

Description

Prefabricated manhole using multi-segment segment {SECTIONAL MANHOLE USING MULTI-DIVIDED SEGMENTS}

1 is an assembled perspective view of a prefabricated manhole using multisegmented segments in accordance with the present invention;

2 is a perspective view of the lower slab of the prefabricated manhole according to the present invention;

3 is a perspective view of the upper slab of the prefabricated manhole according to the present invention; And,

Figure 4 is a perspective view of the wall of the prefabricated manhole according to the invention.

<Description of Symbols for Main Parts of Drawings>

10: lower slab 11, 12: lower slab segment

20: wall 22: 'ㄱ' shaped segment

22a: horizontal connection part 24: tube part

26 haunch 30 upper slab

32: opening

The present invention relates to a prefabricated manhole using multisegmented segments. More specifically, the manhole can be installed regardless of the facilities already accommodated in the manhole, and the construction period can be shortened to minimize traffic or traffic inconvenience, and the manhole construction quality can be improved to the level of precast manhole. It relates to a prefabricated manhole using segments.

In general, the manhole is an underground structure installed at regular intervals to protect water supply and sewer pipes, sewage, gas, power, or communication lines buried underground, so as to facilitate construction such as replacement or repair of old water pipes. do.

However, when this manhole itself is deteriorated and replaces the existing manhole where various facilities are already accommodated inside, the facilities inside the manhole are disturbed, and thus, precast manholes, which are high-quality factory products, cannot be installed. There is no choice but to install the manhole by pouring concrete at the site. In addition, even when the manhole is installed in a place scattered underground buried, precast manholes can not be installed, so there is no choice but to install on-site concrete pouring manholes.

As a result, the construction process is prolonged due to the process of construction of concrete formwork, rebar assembly, concrete placing, concrete curing, and formwork demolition, and in case of manhole located in the downtown area, it causes traffic communication or inconvenience of traffic. In addition, since the construction quality is reduced compared to the precast manhole, the manhole by on-site concrete casting has a problem that many difficulties occur in operation and maintenance after construction.

The present invention is to solve the conventional problems as described above, by configuring a prefabricated manhole consisting of the upper slab, lower slabs and walls that can be composed of a plurality of segments, regardless of the facilities already housed in the manhole The purpose is to provide a prefabricated manhole using a multi-segment segment that can be installed, shorten the construction period, minimize traffic and traffic inconvenience, and improve manhole construction quality to the level of precast manhole.

In order to achieve the above object, the present invention and the lower slab constituting the bottom surface of the manhole; A wall installed on the lower slab in a direction perpendicular to the ground and constituting a side surface of the manhole; An upper slab installed at an upper end of the wall and having an opening formed through a center thereof, wherein the lower slab, the wall and the upper slab are manufactured separately and then assembled in a field to replace an existing manhole housed with facilities, When manholes are newly installed in places where underground works are buried, manholes can be installed regardless of the facilities already housed in the manholes, and the construction period can be shortened to minimize traffic and traffic inconveniences, and precast manhole construction quality. Not only can be improved to the manhole level, it is characterized by high field applicability because it can be secured by cutting the segment in the field unexpectedly in advance.

Furthermore, the wall is made by combining two 'b' shaped segments, characterized in that it is easy to manufacture by adjusting the size of the wall according to the size of the manhole.

Further, the horizontal connecting portion formed on the upper and lower ends of the wall is formed to be wider than the thickness of the wall by a predetermined width, it is characterized in that it is possible to improve the adhesion and structural stability during assembly.

In addition, the wall is made of a plurality of different kinds of height, it can be constructed to correspond to the various depths of the manhole.

Furthermore, the tube part penetrating the side surface of the said wall is provided, and after the installation of the said prefabricated manhole, the pipe which accommodates a cable etc. can pass.

Further, a portion of the '-' shaped segment to be bonded to each other is provided with a haunch of the triangular prism shape, it is characterized in that to improve the resistance to earth pressure after installation of the prefabricated manhole.

Furthermore, the lower slab is divided into two segments along the length direction, so that the lower slab can be easily inserted when the space is narrow.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a prefabricated manhole using a multi-segment segment according to the present invention.

1 is an assembled perspective view of a prefabricated manhole using multisegmented segments according to the present invention. As shown in Figure 1, the prefabricated manhole according to the present invention is a pre-cast (pre-cast) manhole, unlike the concrete pour-type manhole, it is constructed in a manner of assembling in the installation position after the manhole is installed in advance.

Referring to FIG. 1, the prefabricated manhole using the multisegmented segment according to the present invention consists of a lower slab 10, a wall 20, and an upper slab 30. The lower slab 10 and the upper slab 30 are each provided one by one, but the wall 20 may be composed of a plurality of layers, so that the number of floors of the wall 20 is set according to the depth of the space to be installed. It is configured to change the height. Hereinafter, referring to Figures 2 to 4, it looks at in detail with respect to each configuration of the prefabricated manhole according to the present invention.

Figure 2 is a perspective view of the lower slab of the prefabricated manhole according to the invention. Referring to FIG. 2, the lower slab 10 is preferably divided into two segments 11 and 12 in the longitudinal direction and formed in a substantially rectangular shape. Although the lower slab 10 may be configured as one segment, when the lower slab 10 is configured as two segments, the lower slab 10 may be easily transported and handled, and the lower slab 10 may be disposed in a narrow space. It is easy to install. In particular, when the space for installing the manhole is narrow, by moving the two segments (11, 12) vertically to the manhole bottom, the installation of the prefabricated manhole becomes easier. Meanwhile, although not shown in FIG. 2, a bottom receiving hole (not shown) having a predetermined depth is formed in the center of the lower slab 10 so that water accumulated in the manhole may be collected in the bottom receiving hole after installation of the manhole. It is desirable to design so that it is possible.

Figure 3 is a perspective view of the upper slab of the prefabricated manhole according to the present invention. Referring to Figure 3, the upper slab 30 is formed in a rectangular shape consisting of one segment, which is to be able to structurally resist various loads that can be applied on the upper manhole. A circular opening 32 is formed through the central portion of the upper slab 30. The opening 32 is a place where a manhole cover (not shown) is installed after the manhole is installed, and is formed in a circle or a square to correspond to the shape of the manhole cover.

Figure 4 is a perspective view of the wall of the prefabricated manhole according to the invention. Referring to FIG. 4, the wall 20 has two segments 22 having a '-' shape and are attached to each other to have a '-' shape. The wall 20 is a member forming a side surface of the manhole, and is installed on the lower slab 10 in a direction perpendicular to the ground, and the upper slab 30 is installed on the upper slab. When the wall 20 is manufactured in two segments 22 having a '-' shape, the work for producing a segment 22 having a different standard as compared to the case in which one segment has a 'ㅁ' shape is formed. This is facilitated. In the form (not shown) for manufacturing the segment 22 of the wall 20, by adjusting the size of both corners of the '-' shaped portion, it is possible to variously change the size of the segment 22.

Upper and lower portions of the wall 20 are provided with horizontal connecting portions 22a connected to the upper slab 30, the lower slab 10, or another wall 20, respectively. The thickness of the horizontal connecting portion 22a is preferably formed to be wider than the thickness of the other parts of the wall 20 so that the adhesive force and structural stability at the time of assembly can be improved.

In addition, the inner edge portion of the 'a' shaped segment 22 of the wall 20 is not bent at an angle of 90 °, but is formed in a right triangle shape with an inner angle of about 135 °, so that the earth pressure after installation of the manhole It is desirable to be able to improve the resistance of the wall 20 to the wall. In addition, since it is difficult to form such an inclined shape in advance in the portion to which each of the 'A'-shaped segments 22 are bonded to each other, the respective segments 22 are bonded by installing and attaching vertical haunches 26, respectively. It is desirable to be able to improve the resistance to earth pressure at the portion as well. It is preferable that the shape of this vertical haunch 26 is a triangular prism shape, and the shape of the cross section is a right triangle shape.

In addition, referring to Figure 1, the side wall of some of the wall 20 is formed with a tube 24 penetrated in a substantially rectangular shape. The fitting portion 24 is a configuration that can pass through the pipe receiving the cable, etc. after the installation of the prefabricated manhole, if the prefabricated portion 24 is required according to the design of the prefabricated manhole to manufacture the initial wall 20 The mold may be formed in advance and manufactured by a method such as cast, or may be manufactured by partially cutting a segment of the wall 20 in the field. And in Figure 1, the height of the wall 20 is configured to be the same, but preferably produced a plurality of walls 20 to two heights of different types, for example, 30cm and 50cm, each according to the depth of the manhole By installing the wall 20 of the type suitable for the depth of the manhole, it is easy to work corresponding to the various depths of the manhole.

On the other hand, the components of the adhesive resin for adhering the wall 20 to the upper slab 30 and the lower slab 10 or the other wall 20 are 49.2% or 48.6% of the resin and talc, and the etoga 1.6 or the like. It is preferable that it consists of a ratio of 2.8%. And it is preferable to further comprise an accelerator or a curing agent in accordance with the ambient temperature or other working conditions in this component.

In the case of installing a prefabricated manhole having such a configuration, the upper and lower slabs 10 and 30 and the wall 20 are bonded in advance with an adhesive resin and dried, and then installed in the field, or depending on the site conditions. The construction may be performed by bonding the lower slab 30, the wall 20, and the upper slab 10 in order in the field.

As described above, the prefabricated manhole using the multi-segmented segment of the present invention replaces an existing manhole in which facilities are accommodated, or when a manhole is newly installed in a place interspersed with underground buried matter, regardless of the facilities already accommodated in the manhole. Manholes can be installed, construction time can be shortened to minimize traffic and traffic inconveniences, and manhole construction quality can be improved to the level of precast manholes. As it can be secured, the field applicability is highly effective.

The present invention is not limited to the described embodiments, and various modifications and changes can be made to those skilled in the art without departing from the spirit and scope of the present invention. Such modifications or modifications may be made to the present invention. It belongs to the claims of the.

Claims (7)

It is a prefabricated manhole that is applied when replacing an existing manhole in which various facilities are accommodated. A lower slab formed separately from the two segments along the longitudinal direction and constituting the bottom surface of the manhole; A wall installed on the lower slab in a direction perpendicular to the ground, constituting a side surface of the manhole, and having two '?' Shaped segments coupled to each other; Including an upper slab installed on the top of the wall, the opening is formed through the center, The lower slab, the wall and the upper slab are manufactured separately and then assembled in the field, The prefabricated manhole using a multi-segment segment is provided with a tube portion penetrating the side surface of the wall, the manhole can be installed in a state where a pipe for accommodating a cable or the like is installed. delete The method of claim 1, Prefabricated manholes using a multi-segment segment, characterized in that the horizontal connecting portion formed on the upper and lower ends of the wall is formed to be wider than the thickness of the wall. The method of claim 1, The wall is made of a plurality of different heights, Prefabricated manholes using multi-segmented segments, which can be constructed in response to various depths of the manholes. delete The method of claim 1, A portion of the '-' shaped segment to be bonded to each other is provided with a haunch of the triangular prism shape, Prefabricated manhole using a multi-segment segment, characterized in that to improve the resistance to earth pressure after installation of the prefabricated manhole. delete

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