KR102512349B1 - A cover of the utility-pipe conduit and the manufacturing method thereof - Google Patents

Abstract

The present invention relates to a utility-pipe conduit cover and a manufacturing method thereof. The method comprises: a cover forming member insertion step of inserting a cover forming member into a molding space of a formwork body in which a molding space is formed, wherein the molding space is in the form of a utility-pipe conduit cover, and consists of a bottom part and a side part provided on an upper part of the bottom part to form a square wall body to have a handle molding part on the inside; a reinforcement member placing step of placing a reinforcing member on top of the cover forming member introduced into the molding space; a pressing step of downwardly pressing the cover forming member introduced into the molding space with a pressurizing unit; a drying step of releasing the pressure applied in the pressing step and drying. The purpose of the present invention is to have improved strength and durability by providing a reinforcing member at the center in the thickness direction of the utility-pipe conduit cover.

Description

Utility hole cover and its manufacturing method {A COVER OF THE UTILITY-PIPE CONDUIT AND THE MANUFACTURING METHOD THEREOF}

The present invention relates to a utility port cover and a method for manufacturing the same, and more particularly, to a utility port cover with improved rigidity and a method for manufacturing the same.

At the edge of the tunnel, there is a utility tunnel constructed slightly higher than the road pavement surface, and this utility tunnel is an underground tunnel that accommodates water and sewage pipes, various cables, and gas pipes, and is also called a common tunnel. The installation of utility tunnels allows facilities necessary for maintenance of tunnels and roads, such as water and sewage pipes, power line protection pipes, fire hydrants, drainage pipes, electrical conduits, and communication pipes, to be jointly accommodated in one space, thereby preserving the road structure and improving the smooth flow of traffic. is to obtain Inside the tunnel, various electrical facilities such as lighting, ventilation facilities, and monitoring facilities inside the tunnel, drainage facilities for draining rainwater or underground water flowing into the tunnel, communication facilities that transmit various information, and fire hydrant facilities in preparation for fires in the tunnel are provided. Facilities are installed, and utility outlets are installed for efficient management and smooth use of these facilities.

1 is a cross-sectional view illustrating a typical tunnel by way of example. As shown in FIG. 1, generally, in a tunnel, box-structured common ports are provided along the longitudinal direction of the tunnel on the left and right sides of a concrete slab, that is, at both edges of the tunnel floor, and a common port cover 10 is provided at the upper opening. Pipes and cables of various facilities related to the tunnel are piping and wiring in the utility tunnel. The utility tunnel cover 10 is used as a walking path for inspectors to pass when inspecting facilities inside the tunnel.

The utility hole cover 10 is covered to have airtightness to prevent foreign substances from entering from the outside in order to prevent damage or damage to buried objects in the utility hole, and is mostly made of concrete so that it can sufficiently withstand the load when workers pass do.

2 is a perspective view showing the common hole cover 10. The utility hole cover 10 is made of concrete and includes a reinforcing member 30 which is a metal mesh provided in a grid form in the concrete body 20 to improve rigidity. In FIG. 2 , reference numeral 21 denotes a concave portion.

In the utility hole cover 10 as described above, the reinforcing member 30 is not located in the center of the concrete body 20 in the thickness direction and is provided on one surface side so that it does not sufficiently act as the reinforcing member 30, and the utility hole cover 10 ) was easily damaged and had a problem in that the lifespan was reduced.

Republic of Korea Publication No. 10-2016-0023370 Patent Publication

The present invention has been proposed to solve the problems of the prior art as described above, and an object of the present invention is to provide a joint hole cover with improved strength and durability by providing a reinforcing member at the center of the hole cover in the thickness direction and a method for manufacturing the same.

For the above purpose, the present invention is a cover forming member in the molding space of the formwork body in which a molding space in the form of a joint hole cover having a handle molding part inside is formed with a bottom part and a side part provided on the bottom part to form a rectangular wall A step of inserting a cover forming member (inserting a cover forming member), a step of placing a reinforcing member on top of the cover forming member introduced into the molding space (reinforcing member placing step), and a step of downwardly pressing the cover forming member inserted into the molding space with a pressing unit. (pressing step); and releasing the pressure applied in the pressing step and drying (drying step).

In the above, the pressing unit has one or more reinforcing member pressing protrusions protruding downward at the bottom, and in the pressing step, the protruding reinforcing member pressing protrusion presses the reinforcing member downward to insert the reinforcing member into the cover forming member. .

In the above, a filling step is further included between the drying step and the pressing step; In the filling step, a filling material having greater fluidity than the cover forming member is injected into the concave portion formed as the reinforcing member is inserted into the cover forming member and the reinforcing member pressing protrusion is inserted into the cover forming member in the pressing step.

It is manufactured by the above-described joint hole cover manufacturing method, and includes a cover body formed by drying the cover forming member, and a reinforcing member provided in the cover body by being pressed by the reinforcing member pressing projection in the pressing step. do.

A cover body manufactured by the above-described method for manufacturing a joint hole cover and formed by drying a cover forming member, a reinforcing member, which is a net, and provided in the cover body by being pressed by the reinforcing member pressing protrusion in the pressing step, and the filling step It is characterized in that it includes a filling portion formed by drying the filling material introduced in.

In the utility hole cover and manufacturing method thereof according to the present invention, it is possible to adjust the position of the reinforcing member, and the position of the reinforcing member can be positioned at the center of the utility hole cover. Therefore, since the reinforcing member is located at the center of the hole cover in the thickness direction, rigidity is increased, durability is improved, and there is no risk of separation or exposure.

1 is a cross-sectional view showing a general tunnel as an example,
2 is a perspective view showing a common port cover;
Figure 3 is a perspective view showing a formwork used to manufacture the joint cover of the present invention,
Figure 4 is a bottom view showing a formwork pressing member used to manufacture the joint hole cover of the present invention,
5 is a modified example of the formwork pressing member shown in FIG. 4,
Figure 6 is a plan view shown to explain the manufacturing of the common hole cover using the mold used for manufacturing the common hole cover of the present invention,
7 is a flow chart for explaining a method for manufacturing a cavity cover according to the present invention;
8 is a schematic cross-sectional view showing a cavity cover according to the present invention.

All technical terms and scientific terms used in the description of the present invention have meanings commonly understood by those of ordinary skill in the art to which this disclosure belongs, unless otherwise defined. All terms used in this disclosure are selected for the purpose of more clearly describing the disclosure and are not selected to limit the scope of rights according to the disclosure.

Expressions such as "comprising", "including", "having", etc. used in the description of the present invention imply the possibility of including other embodiments, unless otherwise stated in the phrase or sentence in which the expression is included. It should be understood in open-ended terms.

Singular expressions used in the description of the present invention may include plural meanings unless otherwise stated, and this applies to singular expressions described in the claims as well.

Expressions such as "first" and "second" used in the description of the present invention are used to distinguish a plurality of components from each other, and do not limit the order or importance of the components.

In the description of the present invention, when an element is referred to as being “connected” or “coupled” to another element, that element is capable of being directly connected to or coupled to the other element, or a new or different element. It should be understood that it can be connected or combined via a component.

Hereinafter, with reference to the accompanying drawings, a utility hole cover and a manufacturing method thereof according to the present invention will be described in detail.

Figure 3 is a perspective view showing a formwork used for manufacturing a common hole cover of the present invention, Figure 4 is a bottom view showing a formwork pressing member used for manufacturing a common hole cover of the present invention, Figure 5 is a formwork shown in FIG. It is a modified example of a pressing member, and FIG. 6 is a plan view illustrating the manufacturing of a common hole cover using a mold used for manufacturing the common hole cover of the present invention, and FIG. 7 is a flow chart illustrating a method of manufacturing a common hole cover according to the present invention. 8 is a schematic cross-sectional view showing a joint hole cover according to the present invention.

6 is a plan view shown from the top, omitting the illustration of the pressing body 121 and the pressing means 127, and illustrating a state in which the reinforcing member pressing protrusion 125 presses the reinforcing member 310. will be.

For convenience of description, in the following description, the horizontal direction of FIG. 4 will be described as the length direction and the vertical direction will be described as the width direction.

The common hole cover 300 according to the present invention is manufactured by the formwork body 110 and the pressing part 120 shown in FIG. The method of manufacturing a utility hole cover includes a step of inserting a cover forming member, a step of placing a reinforcing member, a pressing step, a filling step, and a drying step.

In the step of inserting the cover-forming member, the cover-forming member (C) is put into the formwork body 110 . In the step of inserting the cover-forming member, the cover-forming member (C) is put into the molding space (S) of the formwork body (110). The cover forming member (C) is made of a mixture of water, cement, sand, and the like.

The formwork body 110 includes a plate-shaped bottom portion 111 and a side portion 113 provided above the bottom portion 111 to form an upwardly-opening molding space S with the bottom portion 111. . The mold body 110 is provided with concave handle molding parts 1131 on both sides in the width direction inside the side part 113 to form a molding space S having the shape of a joint hole cover 300. The formwork body 110 is conventionally known, and a detailed description thereof will be omitted. The form body 110 may also have a structure known in Registered Utility Model No. 20-0423139.

In the step of introducing the cover-forming member, the cover-forming member (C) is put into the molding space (S), and as shown in (a) of FIG. 7, the excess portion (C1) of the introduced cover-forming member (C) is By removing it, the upper surface of the cover forming member (C) is formed as a flat surface.

In the step of placing the reinforcing member, a reinforcing member 310 is placed on top of the cover forming member C put into the molding space S (FIG. 7(b)). The reinforcing member 310 is placed at the center of the upper surface of the cover forming member C after forming the upper surface into a plane by removing the excess portion C1 of the cover forming member C inserted into the molding space S. As shown in FIG. 6, the reinforcing member 310 is located at the center of the formwork body 110 in the width and length directions.

As shown in FIG. 6, the reinforcing member 300 is formed in a mesh shape in which metal rods are intersected and coupled. The reinforcing member 300 is composed of a first grid portion 311 and a second grid portion 313, which are a plurality of horizontally and vertically crossed bars.

In the pressing step, the cover forming member (C) inserted into the molding space (S) is downwardly pressed by the pressing part (120). In the pressing step, a vibration load may be applied.

As shown in FIGS. 3 to 6, the pressing unit 120 includes a plate-shaped pressing body 121 and a pressing unit handle 123 spaced apart from each other in the width direction or the longitudinal direction on the top of the pressing body 121. ), and a pressing means 127, which is a cylinder having a cylinder rod connected to the top of the pressing body 121, and a reinforcing member pressing protrusion 125 protruding from the bottom of the pressing body 121.

The pressing body 121 has the same plate shape as the flat shape of the molding space S, and has a size capable of being slidably inserted into the side portion 113.

At least one reinforcing member pressing protrusion 125 protrudes downward from the bottom of the pressing body 121 and is formed. As shown in FIGS. 4 to 6 , the reinforcing member pressing protrusion 125 is formed in a thin plate shape having a length.

The reinforcing member pressing protrusion 125 may be formed in a plate-like straight line as shown in FIG. 4, or may be formed in a curved line as shown in FIG. shape can be formed.

In the pressing step, as shown in FIG. 7(c), the protruding reinforcing member pressing protrusion 125 presses the reinforcing member 310 downward so that the reinforcing member 310 is inserted into the cover forming member C.

As shown in FIGS. 4 and 6 , the reinforcing member pressing protrusions 125 are spaced apart in the longitudinal direction in a form extending in the width direction and may be provided in plurality. The reinforcing member pressing protrusion 125 presses the plurality of second grid portions 313 extending in a vertical direction with the reinforcing member pressing protrusion 125 .

As shown in FIGS. 4 and 6 , the reinforcing member pressing protrusions 125 are spaced apart in the width direction in a form extending in the longitudinal direction and may be provided in plurality. The reinforcing member pressing protrusions 125 may have a short length and may be spaced apart in the longitudinal direction. The reinforcing member pressing protrusion 125 presses the plurality of first grid portions 311 extending in a vertical direction with the reinforcing member pressing protrusion 125 .

As shown in FIGS. 4 and 6, the reinforcing member pressing protrusions 125 spaced apart in the longitudinal direction in a form extending in the width direction, and the reinforcing member pressing protrusions 125 spaced apart in the width direction in a form extending in the longitudinal direction. may be provided together.

6 illustrates an example of the reinforcing member pressing protrusion 125, and the shape or arrangement of the reinforcing member pressing protrusion 125 is not limited thereto.

As shown in the enlarged view of FIG. 4 , the reinforcing member pressing protrusion 125 is formed in a form in which the cross-sectional area decreases towards the end, so that it can be easily separated from the cover forming member C.

Since the reinforcing member pressing protrusion 125 protrudes downward from the pressing body 121, the reinforcing member pressing protrusion 125 presses the reinforcing member 310 placed on the upper surface of the cover forming member C while the pressing body 121 moves downward. And the reinforcing member pressing protrusion 125 and the reinforcing member 310 go into the cover forming member (C), and while the pressing body 121 continues downward, the lower surface of the pressing body 121 presses the upper surface of the cover forming member (C). do.

The reinforcing member pressing protrusion 125 protrudes from the pressing body 121 and has a height H. The reinforcing member 310 enters the cover forming member C at a depth D equal to the protruding height of the pressing body 121 . By adjusting the protruding height H of the reinforcing member pressing protrusion 125, it is possible to adjust the depth at which the reinforcing member 310 enters the cover forming member C, thereby positioning the reinforcing member 310 at a desired position in the thickness direction. can The protruding height H of the reinforcing member pressing protrusion 125 is preferably ½ of the thickness of the cover forming member C.

In FIG. 7(c), reference numeral 230 denotes a pressurizing means such as a cylinder pressurizing the side part 113. In the pressing step, when the cover forming member (C) is pressed from the top by the pressing means 127, the side part 113 is pressed from the outside to prevent the side part 113 from being deformed or pushed.

When the press finishes and the press body 121 rises due to the contraction of the press means 127, the reinforcing member press projection 125 inserted into the cover forming member C also rises and is spaced upward from the cover forming member C. And, the reinforcing member 310 remains in the cover forming member (C).

When the pressing body 120 rises, as shown in FIG. 6, the upwardly concave second concave portion C2 formed while the reinforcing member pressing protrusion 125 is inserted into the cover forming member C, and the reinforcing member 310 are inserted An upwardly concave first concave portion C1 is formed. The cover-forming member (C) is manufactured by mixing water to such an extent that the second concave portion (C2) and the first concave portion (C1) formed in the cover-forming member (C) are not filled by their own flow.

The cover forming member inputting step, the reinforcing member placing step, and the pressing step may be performed on a conveyor (not shown).

First, a plurality of formwork bodies 110 are placed on the conveyor. While the formwork body 110 is being transported on the conveyor, the cover forming member C is put into the molding space S of the formwork body 110.

Then, as shown by C1 in FIG. 7 (a), the excess input to the top of the formwork body 110 is removed by pushing, so that the upper surface of the cover forming member C inserted into the formwork body 110 becomes flat.

After the upper surface of the cover-forming member C is flat, a reinforcing member 310 is placed on the upper surface of the cover-forming member C, which is flat, as shown in FIG. 7(b). The reinforcing member 310 is placed at the center of the upper surface of the cover forming member (C).

As shown in FIG. 7 (c), the formwork body 110 with the reinforcing member 310 placed on the upper surface of the cover forming member C is transferred to the lower portion of the pressing unit 120, the transfer is stopped, and the pressing means 127 By the operation of the cylinder, the pressurizing part 120 is lowered, and the cover forming member C, on which the reinforcing member 310 is placed on the upper surface, is pressed downward.

When the pressing part 120 rises, the conveyor operates and the formwork body 110 to be pressed next is transported to the lower part of the pressing part 120, and the pressing part 120 descends to reinforce the formwork body 110. The cover forming member C on which the member 310 is placed is pressed.

In this way, the joint hole cover manufacturing can be performed continuously on the conveyor.

When the cover forming member (C) has high fluidity according to the mixing ratio of water, cement, and sand, when the pressing body 121 rises, the second concave portion C2 or the first concave portion C1 is formed by its own flow. In this case, the dried joint hole cover 300 is plate-shaped and has a thickness by the cover body 320 formed by drying the cover forming member C and the reinforcing member pressing protrusion 125 in the pressing step. The cover body 320 is pressurized and includes a reinforcing member 310 provided therein.

In the filling step, the filling material is poured onto the cover forming member (C), and in the pressing step, the reinforcing member 310 is inserted into the cover forming member (C) and the reinforcing member pressing protrusion 125 is the cover forming member ( C) A filling material having greater fluidity than that of the cover forming member (C) is injected into the first concave portion (C1) and the second concave portion (C2) formed while being inserted into the cover forming member (C). The filling member is filled with a member such as mortar having greater fluidity than the cover forming member (C).

In the filling step, the gaps of the cover forming member C may also be filled with a filling material while filling the first concave portion C1 and the second concave portion C2. As the upper part of the cover-forming member (C) is filled with the filling material, the gap is filled and dried together with the cover-forming member (C), so that the upper part can be manufactured without gaps. Therefore, it is possible to prevent calcium chloride or moisture from infiltrating the upper void when the cavity cover is installed.

In the drying step, the pressure applied in the pressing step is released and dried. In the drying step, the cover forming member (C) into which the reinforcing member 310 is inserted is separated from the formwork body 110. The cover forming member (C) is dried by separating the side part 113 of the formwork body 110.

In the drying step, the cover forming member (C) and the filling member are dried together. The cover forming member (C) is dried to become the cover body 320, which becomes the main body of the utility hole cover 300, and the filling member is solidified in the second concave portion C2 and the first concave portion C1 to form the filling portion. (330). The reinforcing member 310 is coupled to the cover body 320 and coupled to the filling part 330 to be firmly provided in the center in the thickness direction, and is not exposed to the outside, increasing strength while solving causes of life shortening such as corrosion.

The inputting step of the cover forming member may consist of a first inputting step and a second inputting step.

A reinforcing member mounting step is provided between the first inputting step and the second inputting step.

In the first input step, an amount of cover forming member C to fill a lower part of the molding space S is input. A space is formed above the introduced cover forming member (C). The cover forming member (C) is introduced to fill more than half of the molding space (S) in the vertical direction.

In the reinforcing member mounting step, the reinforcing member 310 is placed on top of the cover forming member C introduced into the molding space S in the first input step. The upper surface of the cover-forming member (C) inserted more than half may be flattened and the reinforcing member 310 may be placed thereon.

In the second insertion step, the cover forming member (C) is additionally introduced into the upper portion of the cover forming member (C) on which the reinforcing member 310 is placed. The upper surface of the cover-forming member (C) is formed flat by removing the excess portion (C1) of the cover-forming member (C) introduced in the second input step. When the depth of the cover forming member C injected in the second input step is smaller than the protruding height of the reinforcing member pressing protrusion 125, the reinforcing member 310 is moved downward by the reinforcing member pressing protrusion 125 in the pressing step. is pressurized When the protruding height of the reinforcing member pressing protrusion 125 is formed to be ½ of the manufactured utility hole cover, the reinforcing member 310 can be positioned approximately at the center of the utility hole cover in the vertical direction.

In the pressing step, the protruding reinforcing member pressing protrusion 125 is inserted into the cover forming member C, and when it reaches the reinforcing member 310 placed inside, the reinforcing member 310 is pressed downward.

When the press finishes and the press body 121 rises due to the contraction of the press means 127, the reinforcing member press projection 125 inserted into the cover forming member C also rises and is spaced upward from the cover forming member C. And, the reinforcing member 310 remains in the cover forming member (C).

When the pressing body 120 rises, a second concave portion C2 concave upward is formed while the reinforcing member pressing protrusion 125 is inserted into the cover forming member C. In the dry manufacturing method, the cover-forming member (C) is manufactured by mixing water to such an extent that the second concave portion (C2) formed in the cover-forming member (C) is not filled by its own flow.

In the filling step, the filling material is poured onto the cover forming member (C), and in the pressing step, the reinforcing member 310 is inserted into the cover forming member (C) and the reinforcing member pressing protrusion 125 is the cover forming member. A filling material having greater fluidity than that of the cover forming member (C) is injected into the first concave portion (C1) and the second concave portion (C2) formed while being inserted into (C). The filling member is filled with a member such as mortar having greater fluidity than the cover forming member (C).

In the filling step, while filling the second concave portion C2 with the filling material poured upward, the gaps of the cover forming member C may also be filled. As the filling material is poured into the upper part of the cover forming member (C) and the second concave portion (C2) is filled with the filling material, the gap of the cover forming member (C) is also filled with the filling material and dried together with the cover forming member (C). The top can be made void-free.

As the filling material of the second concave portion C2 and/or the first concave portion C1 is filled and solidified, the upper portion filled with the filling material may become concave, thereby generating an anti-slip effect.

110: formwork body 120: pressing part
300: utility port cover 310: reinforcing member
320: cover body 330: filling part

Claims (7)

It consists of a bottom part 111 and a side part 113 provided above the bottom part 111 to form a rectangular wall, and a molding space S in the form of a tool cover 300 having a handle molding part 1131 inside is formed. The step of inserting the cover forming member (C) into the molding space (S) of the formwork body 110 (cover forming member inputting step), and the reinforcing member on top of the cover forming member (C) inserted into the molding space (S) ( 310) (reinforcing member placement step), downwardly pressing the cover forming member (C) injected into the molding space (S) with the pressing unit 120 (pressing step), and the pressure applied in the pressing step. Including a step of releasing and drying (drying step);
The pressing part 120 includes a pressing body 121 and one or more reinforcing member pressing protrusions 125 protruding downward from the bottom of the pressing body 121, and in the pressing step, the pressing part 120 moves downward while The protruding reinforcing member pressing protrusion 125 presses the reinforcing member 310 downward so that the reinforcing member 310 is pushed into the cover forming member C, and while continuing downward, the lower surface of the pressing body 121 is the cover forming member C ) Method for manufacturing a cavity cover, characterized in that for pressing the upper surface of the. delete The method of claim 1, further comprising a filling step between the drying step and the pressing step; In the filling step, as the reinforcing member 310 is inserted into the cover forming member (C) in the pressing step and the reinforcing member pressing protrusion 125 is inserted into the cover forming member (C), the cover forming member (C) A method for manufacturing a cavity cover, characterized in that a filling material having greater fluidity is introduced. The method of claim 1, wherein the cover forming member input step consists of a first input step and a second input step, and a reinforcing member mounting step is provided between the first input step and the second input step;
In the first inputting step, an amount of cover-forming member (C) filling the lower portion of the molding space (S) is introduced to form a space above the cover-forming member (C), and in the reinforcing member mounting step, the first inputting step A reinforcing member 310 is placed on top of the cover forming member C introduced into the molding space S in the; In the second input step, the cover forming member (C) is additionally put into the upper part of the cover forming member (C) on which the reinforcing member 310 is placed;
The pressing part 120 has one or more reinforcing member pressing protrusions 125 protruding downward at the bottom, and in the pressing step, the protruding reinforcing member pressing protrusion 125 is inserted into the cover forming member C to form a cover. A method of manufacturing a joint hole cover, characterized in that the reinforcing member 310 located in the member (C) is downwardly moved by pressing the reinforcing member 310 downward. The method of claim 4, further comprising a filling step between the drying step and the pressing step; In the filling step, a filling material having greater fluidity than the cover forming member (C) is injected into the concave portion formed while the reinforcing member 310 is inserted into the cover forming member (C) in the pressing step. It is manufactured by the method of manufacturing a joint hole cover according to claim 1 or 4, and is pressed by the cover body 320 formed by drying the cover forming member (C) and the reinforcing member pressing projection 125 in the pressing step. The utility hole cover 300, characterized in that it is configured to include a reinforcing member 310 provided in the cover body 320. It is manufactured by the method of manufacturing a joint hole cover according to claim 3 or 5, and is pressed by the cover body 320 formed by drying the cover forming member (C) and the reinforcing member pressing projection 125 in the pressing step. The utility hole cover 300, characterized in that it includes a reinforcing member 310, which is a mesh provided in the cover body 320, and a filling part 330 formed by drying the filling material introduced in the filling step.

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