KR102169152B1 - concrete form of sewage disposal tank using wave steel pipe - Google Patents

Abstract

The present invention relates to a septic tank mold using a waveform steel pipe, capable of enabling concrete to be placed by using a mold of a galvanized waveform steel pipe formed outside an FRP septic tank buried in the ground. According to one embodiment of the present invention, the septic tank mold using a waveform steel pipe, which is a septic tank mold for placing concrete outside an FRP septic tank buried in the ground, includes: an outer wall member comprising a cylindrical lateral member formed at a predetermined distance away from an outer surface of the septic tank excluding an upper opening part so as to secure a filling space for concrete placed through the upper opening part, and front and rear members formed on the front and rear sides of the septic tank at a distance therefrom and connected with the lateral member, and formed with a galvanized waveform steel pipe and a predetermined thickness so as to have structural strength and corrosion resistance; a supporter formed on a bottom surface of the lateral member at a random distance therefrom, and formed into a bar or angle shape such that the septic tank placed in an excavation part formed underground can maintain level; and a plurality of supporter brackets having one end fixed to an inner surface of the outer wall member at a random distance therefrom in a circumferential direction and having the other end supported on an outer surface of the septic tank in tight contact, and keeping the concrete filling space constant when the concrete is placed between the septic tank and the outer wall member.

Description

Concrete form of sewage disposal tank using wave steel pipe

The present specification relates to a septic tank formwork, and more specifically, it relates to a septic tank formwork using a corrugated steel pipe for pouring concrete using a form of galvanized corrugated steel pipe formed outside an FRP septic tank buried in the ground.

Unless otherwise indicated herein, the content described in this section is not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

In general, a septic tank, which is a tank for purification and treatment of manure, depends on its use, treatment of small-scale or large-scale capacity, or whether it is a facility that treats manure and includes domestic sewage. It changes its shape.

Mainly in homes, apartment houses, factories, etc., a septic tank is installed by burying a storage tank made of FRP, PE, etc. in the ground, installing accessories, and then pouring concrete around it.

In such a storage tank structure where a concrete wall is to be installed around the outer wall of the storage tank, after digging at the place where it is to be buried, concrete is poured and cured in it to form a box-shaped concrete wall with an open top. , A synthetic resin storage tank made of FRP or PE is fixed in the central part of the concrete wall, and the soil is filled between the storage tank and the concrete wall for construction.

The septic tank structure of Patent Registration No. 10-1856899 according to the prior art not shown in the drawing,

The septic tank and the outer wall portion each have a septic tank fixing protrusion and an outer wall fixing protrusion,

As the septic tank fixing protrusion and the outer wall fixing protrusion are inserted into the fastening groove of the bar-shaped fastening piece in which at least two fastening grooves are formed, the septic tank and the outer wall are fastened by maintaining a certain distance

The FRP septic tank has a plurality of bar-shaped connecting pieces at the top and bottom, but each connecting piece has a septic tank fixing protrusion,

The fastening groove includes a septic tank fastening groove formed so that the septic tank fixing protrusion of the connecting piece is fitted to one end of the fastening piece, and an outer wall fastening groove formed so that the outer wall fixing protrusion of the outer wall part is fitted at the other end of the fastening piece,

It characterized in that the separation distance between the septic tank and the outer wall portion is determined according to the length of the fastening piece.

The septic tank structure of Patent Registration No. 1856899 of the prior art,

Since the outer wall buried in the ground uses a thick steel plate (4~6mm) to have its corrosiveness and structural strength when pouring concrete, it causes an increase in cost.

In addition, since the septic tank and the outer wall are fastened using a bar-shaped fastening piece in the pit dug to bury the septic tank, the number of work hours at the work site increases, resulting in an increase in labor and work costs.

In addition, in order to pour concrete out of the FRP septic tank, the outer wall portion, which is installed at a certain distance from the left and right sides and front and rear surfaces of the septic tank, consists of wire mesh, reinforcement frame, and barrier wall, which increases the number of parts and increases the cost. Due to the increase in the number of work to install the outer wall to the outside, the overall work cost of burying the septic tank is increased, resulting in a problem of lowering price competitiveness in the same industry.

A septic tank structure is posted in Korean Registered Patent Publication No. 10-1856899.

An embodiment of the present specification is a septic tank using a corrugated steel pipe to have workability and practicality by reducing the work process of embedding the septic tank in the ground by dualizing the work of installing the FRP septic tank in the septic tank formwork and the work of placing concrete in the formwork It relates to the formwork.

The embodiment of the present specification relates to a septic tank formwork using a corrugated steel pipe, which secures structural strength while reducing the thickness compared to a formwork of a conventional steel plate, and prevents corrosion by the formwork of a galvanized corrugated steel pipe.

Embodiments of the present specification are related to a septic tank formwork using a corrugated steel pipe, which enables a constant pouring space for pouring concrete between the septic tank and the formwork.

An embodiment of the present specification relates to a septic tank formwork using a corrugated steel pipe, which is mounted on a vehicle in a state in which a septic tank is installed in the septic tank formwork in a factory and can be transported to a work site.

According to an embodiment of the present specification in order to achieve the above and other objects of the present specification,

In the form of a septic tank for pouring concrete outside the FRP septic tank buried in the ground:

Cylindrical side members formed to be spaced apart from the outer surface of the septic tank at an arbitrary distance from the outer surface of the septic tank excluding the upper opening to secure a concrete filling space to be poured through the upper opening, and the side members formed to be spaced apart from the front and rear surfaces of the septic tank. A galvanized corrugated steel pipe and an outer wall member formed of an arbitrary thickness so as to have structural strength and corrosion resistance, the front and rear members connected to each other;

A pedestal formed in the form of a bar or an angle so that the septic tank is formed at an arbitrary interval on the bottom surface of the side member and mounted on an excavation portion formed in the ground;

One end is fixed to the inner surface of the outer wall member at random intervals in the circumferential direction, and the other end is supported in close contact with the outer surface of the septic tank, and when concrete is placed between the septic tank and the outer wall member, the concrete filling space is fixed. It provides a septic tank formwork using a corrugated steel pipe, characterized in that it further comprises a plurality of supporter brackets for maintaining the same.

The septic tank formwork using the corrugated steel pipe according to the embodiment of the present specification having the above-described configuration has the following advantages.

The work of installing the FRP septic tank in the formwork of the septic tank at the factory and the work of pouring concrete into the formwork at the work site are dualized to reduce the work process of embedding the septic tank in the ground to improve workability, thereby reducing work air and labor costs and construction. It is possible to reduce the cost.

In addition, it is possible to secure structural strength while reducing the thickness than that of a conventional smooth steel plate (that is, a corrugated steel pipe can secure high strength through cross-sectional characteristics), and in the underground by a form of a galvanized corrugated steel pipe having corrosion resistance. It is possible to extend the service life by preventing corrosion.

In addition, reliability in construction is obtained as the concrete filling space poured between the septic tank and the formwork is kept constant.

In addition, when the septic tank is installed in the septic tank formwork, it is mounted on a vehicle (for example, a trailer, etc.) and transported to the work site, thereby reducing the space occupied by the septic tank, thereby reducing logistics cost.

1 is a schematic diagram of a septic tank formwork using a corrugated steel pipe according to a preferred embodiment of the present specification,
2 and 3 are cross-sectional views of the formwork shown in FIG. 1,
FIG. 4 is a view showing preventing the formwork from spreading when placing concrete in the concrete filling space between the septic tank and the formwork shown in FIG. 1;
5 is a view showing that some of the formwork is expanded outward by a hinge formed on the formwork shown in FIG. 1 to accommodate an FRP septic tank;
6 is a view for explaining a working process of the septic tank formwork shown in FIG. 1;
FIG. 7 is a diagram showing the burial of a septic tank formwork using the corrugated steel pipe shown in FIG. 1.

Hereinafter, a septic tank form using a corrugated steel pipe according to a preferred embodiment of the present specification will be described in detail with reference to the accompanying drawings.

1 to 7, a septic tank form using a corrugated steel pipe according to an embodiment of the present specification is

In the septic tank formwork for pouring concrete outside the septic tank formed of FRP or PE material buried in the ground:

Cylindrical side members 12 formed to be spaced at an arbitrary distance from the outer surface of the FRP septic tank 11 excluding the upper opening 10 to secure the concrete filling space S to be poured through the upper opening 10 , It is formed of a front and rear member 13 spaced apart from the front and rear surfaces of the septic tank 11 and connected to the side member 12, and a galvanized corrugated steel pipe and an arbitrary thickness to have structural strength and corrosion resistance (for example, 1.4 An outer wall member 14 formed of ∼1.6mm);

A pedestal 16 formed in the form of a bar or an angle so that the septic tank is formed on the bottom surface of the side member 12 at random intervals and mounted on the excavation part 15 formed in the ground;

One end is fixed to the inner surface of the outer wall member 14 at random intervals in the circumferential direction, and the other end is supported in close contact with the outer surface of the septic tank 11, and between the septic tank 11 and the outer wall member 14 It characterized in that it further comprises a plurality of supporter brackets (17) for constantly maintaining the concrete filling space (S) when pouring.

According to a more preferred embodiment, as in Figs. 1 and 3, the aforementioned outer wall member 14 is

A first outer wall member 18 formed to be spaced apart from the bottom surface and the left and right sides of the septic tank 11 at an arbitrary distance;

The upper opening 10 is formed at the upper end, is connected to the upper end of the first outer wall member 18 by a hinge 19 to be foldable, and when the septic tank 11 is inserted into the outer wall member 14, the hinge 19 It characterized in that it consists of; a second outer wall member 21 that is developed outwardly around the hinge pin 20 of the.

1 to 3, the above-described supporter bracket 17 is formed of a galvanized steel sheet to have structural strength and corrosion resistance,

One end of the supporter bracket 17 is welded and fixed to the inner surface of the outer wall member 14,

The other end of the supporter bracket 17 is characterized in that it is formed of an arc-shaped support plate 22 corresponding to the curvature of the outer surface of the septic tank 11 so as to increase the contact area when in close contact with the outer surface of the septic tank 11.

In the drawings, reference numeral 23 is fixed at both ends of the upper opening 10 and prevents the outer wall member 14 from spreading when concrete is poured into the concrete filling space (S) between the septic tank 11 and the outer wall member 14 It is a turnbuckle for, and 26 is a partition wall formed at random intervals on the inner bottom surface of the septic tank 11 and for discharging the separated wastewater through the discharge port by separating the manure and wastewater inputted through the inlet in order.

Hereinafter, an example of using a septic tank formwork using a corrugated steel pipe according to an embodiment of the present specification will be described with reference to the accompanying drawings.

As shown in Figs. 1 and 6, S 10 and 7, the FRP septic tank 11 accommodated in the outer wall member 14 formed of a galvanized corrugated steel pipe at the factory is installed so that it does not flow, and the septic tank 11 ) At the work site to bury concrete in the concrete filling space (S) between the septic tank 11 and the formwork 24 (see S 50 in FIG. 6).

To explain this in detail, as in FIGS. 2, 3 and 4, a random distance is maintained on the inner surfaces of the first outer wall member 18 and the second outer wall member 21 forming the outer wall member 14 in the factory. After welding and fixing one end of the plurality of supporter brackets 17, the other end of the supporter bracket 17 is in close contact with the outer surface of the septic tank 11 when accommodating an arbitrary type of septic tank 11 on the outer wall member 14. .

As in S 20 of FIG. 6, a concrete filling space S can be secured between the outer wall member 14 and the outer surface of the septic tank 11.

At this time, by forming the other end of the supporter bracket 17 described above to correspond to the curvature of the outer surface of the septic tank 11, the contact area of the supporter bracket 17 in close contact with the outer surface of the septic tank 24 is increased. When concrete is poured into the filling space (s), the supporter bracket 17 is prevented from being damaged, so that the concrete filling space (S) can be kept constant.

As shown in FIG. 3, a second outer wall member 21 hinged and fixed by a hinge 19 so as to be foldable on an upper end of the first outer wall member 14 constituting the outer wall member 14 described above is a first outer wall member 18. ), it is possible to easily accommodate the septic tank 11 in the formwork 24.

As shown in S 30 of FIG. 6, the septic tank 11 installed in the outer wall member 14 of the above-described formwork 24 is mounted on a vehicle and is attached to the supporter bracket 17 when transporting to the work site where the septic tank 11 is buried. It can be prevented from flowing by.

2 and 3, after transporting the formwork 24 installed inside the septic tank 11 to the work site, the supporter bracket 17 between the septic tank 11 and the outer wall member 14 When concrete is poured into the formed concrete filling space (S), the thickness of the protective wall 25 can be uniformly formed outside the septic tank 11.

As shown in FIG. 4, when concrete is poured into the above-described concrete filling space (S), the turnbuckle 23 having both ends fixed to the upper opening 10 formed at the top of the second outer wall member 21 forming the outer wall member 14 ), it is possible to prevent the outer wall member 14 from spreading due to pouring concrete.

As shown in S 10A of FIGS. 7A and 6, a pit for burial of the septic tank 11 is formed by excavating at a certain depth in an arbitrary place so that the septic tank 11 can be buried.

As shown in FIG. 7B, the bottom surface of the pit may be flat and leveled, or the foundation surface may be formed by pouring foundation concrete on the bottom of the pit.

As in S 40 of FIG. 6 and FIG. 7C, the formwork 24 in which the septic tank 11 is installed is placed on the ground or foundation concrete of the pit, but the formwork is formed by the support 16 formed on the bottom surface of the formwork 24. 24) It can be leveled easily.

As shown in S 50 and 7D of FIG. 6, concrete is poured into the concrete filling space (s) between the formwork 24 and the septic tank 11 mounted on the flat ground or foundation concrete in the pit. Prior work of filling the soil to an arbitrary height outside the formwork 24 in the pit may be required so as to prevent the formwork 24 from flowing when pouring into the filling space (s).

4 and 7E, when concrete is poured and cured in the concrete filling space (s) between the formwork 24 installed in the above-described pit and the septic tank 11, the outer wall member 14 constituting the formwork 24 It is possible to prevent the formwork 24 from spreading outward due to the weight of concrete that is cast and cured by the turnbuckle 23 fixed to the upper opening 10 of the second outer wall member 21 of ).

As shown in S 60 of FIG. 6 and FIG. 7F, when curing of the concrete poured in the above-described concrete filling space S is completed, the ground around the septic tank 24 except for the manhole 11a of the FRP septic tank 11 The work of embedding the septic tank 11 is ended according to the finishing work of arranging the soil flat.

In addition, as the first outer wall member 18 and the second outer wall member 21 constituting the outer wall member 14 of the above-described formwork 24 are formed of a galvanized corrugated steel pipe, the steel sheet used as a conventional formwork Although the thickness and weight of the outer wall member 14 (1.4 to 1.6 mm are used as an example) and the weight are relatively reduced than the thickness (4 to 6 mm is used as an example), the formwork 24 has stronger corrosion resistance in the ground. , It has structural stability against earth pressure.

In addition, the work of installing the FRP septic tank 11 in the formwork 24 at the factory, and the concrete filling space s of the formwork 24 seated in the excavated pit at the construction site. By dividing the pouring work, it is possible to improve workability by reducing the work process of embedding the FRP septic tank 11 in the ground at the work site.

Herein, although the above description has been described with reference to preferred embodiments, those skilled in the art will variously modify and modify the present specification within the scope not departing from the spirit and scope of the present specification described in the following claims. You will understand that you can change it.

10; Upper opening
11; Septic tank
12; Side member
13; Front and rear members
14; Outer wall member
15; Excavation
16; Pedestal
17; Supporter bracket
18; First outer wall member
19; hinge
20; Hinge pin
21; 2nd outer wall member
22; Support plate

Claims (3)

In the form of a septic tank for pouring concrete outside the FRP septic tank buried in the ground:
Cylindrical side members formed to be spaced apart from the outer surface of the septic tank at an arbitrary distance from the outer surface of the septic tank excluding the upper opening to secure a concrete filling space to be poured through the upper opening, and the side members formed to be spaced apart from the front and rear surfaces of the septic tank. A galvanized corrugated steel pipe and an outer wall member formed of an arbitrary thickness so as to have structural strength and corrosion resistance, the front and rear members connected to each other;
A pedestal formed in the form of a bar or an angle so that the septic tank is formed at an arbitrary interval on the bottom surface of the side member and mounted on an excavation portion formed in the ground;
One end is fixed to the inner surface of the outer wall member at random intervals in the circumferential direction, and the other end is supported in close contact with the outer surface of the septic tank, and when concrete is placed between the septic tank and the outer wall member, the concrete filling space is fixed. A plurality of supporter brackets for maintaining the same;
Both ends are fixed to the upper opening, and turnbuckles for preventing the outer wall member from spreading when concrete is poured into the concrete filling space;
The outer wall member
A first outer wall member formed to be spaced apart from the bottom surface and the left and right sides of the septic tank at an arbitrary distance; A second outer wall member having the upper opening formed at an upper end, connected to the upper end of the first outer wall member by a hinge so as to be foldable, and opening outwardly around a hinge pin of the hinge when a septic tank is inserted into the outer wall member Consists of ;,
The supporter bracket is
It is formed of a galvanized steel sheet to have structural strength and corrosion resistance, one end of the supporter bracket is welded to the inner side of the outer wall member, and the other end of the supporter bracket increases the contact area when in close contact with the outer surface of the septic tank. A septic tank formwork using a corrugated steel pipe, characterized in that it is formed with an arc-shaped support plate corresponding to the curvature of the outer surface of the septic tank so that the septic tank is formed. delete delete

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