KR101129572B1 - Construction method of open bottom type nature friendly agricultural channel - Google Patents

Abstract

PURPOSE: A construction method for an open-bottom type environmentally-friendly agricultural canal is proviced to enable water plants and water animals to grow and live in an agricultural canal. CONSTITUTION: A construction method for an open-bottom type environmentally-friendly agricultural canal is as follows. The ground is excavated where an agricultural canal is to be installed, and the bottom surface of the excavated part is flattened(S11). Foundation outline forms(21) are installed in both ends of the bottom surface of the excavated part. Foundation inner forms(22) and a transverse form(23) are installed between the foundation outline forms(S21). Foundation units(11) and a transverse beam(12) are formed by placing concrete between the outer surfaces of the foundation inner forms and the transverse form and the inner surfaces of the foundation outline forms and curing the concrete(S22). After curing, the foundation outline forms, the foundation inner forms, and the transverse form are removed(S23). A pair of wall forms(24) are formed on the top surface of each foundation unit(S31). Canal walls(14) are formed by placing concrete in the wall forms and curing the concrete. After curing, the wall forms are removed(S33). The rear surfaces of the canal walls are filled with earth(S41).

Description

Construction method of open bottom eco-friendly agricultural water channel {CONSTRUCTION METHOD OF OPEN BOTTOM TYPE NATURE FRIENDLY AGRICULTURAL CHANNEL}

The present invention relates to a construction method for on-site casting of a concrete spherical or formulated agricultural water channel, and after the excavation of the agricultural waterway installation plan point, the foundation inner form 22 and the cross-section formwork 23 are closed or constructed. By installing the concrete housing 30, by forming the open portion 13 on the bottom of the finished agricultural waterway to be exposed to the ground below the agricultural waterway.

Agricultural waterways, which supply agricultural water from agricultural sources such as reservoirs, intake basins, collection wells, and wells to arable land, are constructed in the form of a waterway network that densely connects arable land in the Mong-ri area of the source. It is characterized by having multiple outlet points interspersed.

In particular, due to the nature of Korea's agricultural infrastructure, which has mostly cultivated agricultural fields, agricultural waterways do not merely serve as agricultural water transport paths between the water supply facilities and arable lands, but are connected to unit farmland, and the habitats and ecology of various aquatic flora and fauna. It also plays a role as a pathway, and from the viewpoint of environmental and ecological wetland function of hydroponic arable land, which is recently gaining attention, it plays a key role of providing wetland function to arable land through unit wetlands, that is, between arable lands.

Historically, in Korea, where daphne farming technology was developed, various types of farm waterways were installed and operated in Susadab as well as Cheonsu Dap. Most of them were soil wall or stonework. It served as a waterway as well as a habitat for various aquatic plants and animals.

However, in the process of modernizing agricultural facilities such as expanding irrigation facilities and arranging farmland, concrete farm water channels have been spread, and soil wall and stone channel have mostly been replaced with concrete water channels.

These concrete farms are excellent in terms of construction, structure, and maintenance, but they are not only capable of aquatic plant life, but also cannot provide a suitable environment for spawning and hatching of aquatic animals, thus causing the destruction of farmland-based ecological environments.

The present invention was devised in view of the above-described problems, while constructing a concrete agricultural channel in a field casting method, forming an open portion 13 at the bottom of the channel of the finished agricultural channel, and crossing the lower portions of the two channel walls 14. By forming the beam 12, while the bottom surface of the agricultural waterway is exposed to the outside to ensure the structural stability of the waterway itself as much as possible, and also to effectively cope with the earth pressure acting on the back of the waterway wall 14.

That is, the present invention for achieving the above object in the construction method of the construction site of the concrete agricultural waterway in which the bottom of the channel is opened to expose the ground to the outside, excavation of the planned installation point of the waterway and smoothly arrange the bottom of the excavation part Digging step (S11), and the foundation outer formwork 21 is installed on each side end of the bottom of the excavation portion, respectively, between the inner foundation formwork 22 and the cross-section formwork 23 is installed between the two sides, Foundation formwork 22 and the cross-section formwork 23 is formed in the form of a basic form close to form a rectangular rectangle, and the outer surface and foundation outer formwork of the foundation formwork 22 and cross-section formwork 23 The foundation part forming step (S22) of casting and curing concrete between the inner surfaces of the 21 to form the foundation part 11 and the cross beam 12, and the curing of the foundation part 11 and the cross beam 12. Upon completion of the foundation outer formwork (21), foundation inner formwork (22) and the foundation mold removing step (S23) to remove the cross-section formwork 23, and wall formwork building step (S31) standing up to build a pair of wall formwork 24 respectively on the upper surface of the both sides of the base portion (11) And, waterway wall forming step (S32) to form the waterway wall 14 by placing and curing concrete in the wall formwork 24, and the waterway to remove the wall formwork 24 when the curing of the waterway wall 14 is completed. The construction method of the bottom open-type eco-friendly agricultural waterway, characterized in that the wall demolition step (S33), and the backfilling step (S41) for filling by filling the soil on the back surface of the both sides of the waterway wall (14).

In addition, in the site casting construction method of the concrete agricultural water channel in which the channel bottom is opened and the ground is exposed to the outside, the excavation step (S11) for excavating the installation plan point of the agricultural channel and smoothly arranging the bottom of the excavation part, and the excavation part Base installation form (21), respectively, installed on the bottom side side end portions, and the installation unit (S25) and a rectangular concrete housing 30 of the central portion is opened between the two sides of the base formwork, and the enclosure ( A lower molding step (S26) of forming the foundation 11 and the cross beam 12 by placing and curing concrete between the outer surface of the outer mold 30 and the inner surface of the foundation outer mold 21; And when curing of the cross beam 12 is completed, the housing 30 is a lower demoulding step (S27) for removing the foundation outer formwork 21 in a state of being present, and a pair of the upper surface of the both sides of the base portion 11, respectively Wall formwork building step (S31) to erect the wall formwork 24, and the wall A waterway wall forming step (S32) of forming the waterway wall 14 by pouring concrete into the mold 24 and curing it, and a waterway wall deforming step of removing the wall formwork 24 when curing of the waterway wall 14 is completed. (S33), and the construction method of the bottom open-type eco-friendly agricultural waterway, characterized in that it consists of a backfilling step (S41) for charging by putting the soil on the back surface of the two waterway walls (14).

Through the present invention, it is possible to obtain the effect of improving the flora and fauna habitat of the farmland as well as the associated arable land, and to restore the ecosystem, and by inducing the aquatic life of aquatic plants and the aquatic animals in the aqueduct, improve the surrounding landscape and hydrophilic environment It is possible to obtain the effect of forming a.

In addition, by constructing a cross beam 12 connecting and supporting the lower ends of the two channel walls 14, it is possible to overcome the structural weakness of the farm channel due to the formation of the opening 13 on the bottom of the channel, and to effectively cope with the earth pressure on the rear surface of the channel wall 14. Can be.

In addition, in forming the opening 13 on the bottom of the cast-in-place concrete agricultural waterway, the preformed concrete housing 30 is used as a formwork substitute, and the housing 30 is retained even after the waterway molding is completed. The effect of securing and shortening air can also be obtained.

1 is a diagram illustrating the construction process step by step of the present invention
Figure 2 is a planar and cross-sectional view of the formwork assembly form for forming the base and cross beam of the present invention
Figure 3 is a perspective view of the base assembly and the formwork for forming the cross beam of the present invention
Figure 4 is a perspective view of a part of the agricultural waterway constructed through the present invention
Figure 5 is a longitudinal cross-sectional view immediately after completion and use state of the agricultural waterway constructed through the present invention
Figure 6 is an embodiment of the formwork assembled state of the present invention the concrete housing is applied
Figure 7 is a diagram illustrating the construction process step by step one embodiment of the present invention the concrete housing is applied
Figure 8 is a cross-sectional view of the agricultural waterway constructed through the Figure 6 embodiment

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed configuration of the present invention will be described with reference to the accompanying drawings.

First, Figure 1 illustrates a step-by-step construction process of the present invention, as shown in the present invention is disclosed in the excavation step (S11) for excavating the installation planning point of the farm.

Digging during construction through concrete casting of agricultural waterway is carried out for the extension of the waterway in the unit work section, and as shown in the illustrated embodiment, a typical cut-off method such as a trench cut having a formulation excavation section is applied. Alternatively, the ditches may be constructed in areas where it is difficult to expand the excavation surface due to roads, buildings, obstacles or underground facilities, or difficult to secure excavation slopes such as soft ground.

The bottom of the excavation portion may be further processed such as smoothly arranged and compacted to ensure stable performance of subsequent processes such as formwork and to ensure the basic stability of the finished waterway structure.

When the excavation step (S11) is completed, as shown in Figures 2 and 3, the foundation outer formwork 21 is installed on each side end of the bottom of the excavation portion, respectively, and the foundation inner formwork (between the two sides of the outer formwork 21) 22) and the transverse formwork 23 is installed, but the foundation formwork 22 and the transverse formwork 23 are formed in the foundation form step (S21) of closing the installation to form a rectangular plane.

The inner formwork 22 and the transverse formwork 23 are for forming the opening 13 of the bottom of the agricultural water channel as shown in FIG. 4, and the inner formwork 22 disposed as shown in FIGS. 2 and 3. And the concrete poured between the base outer formwork 21 forms the base portion 11 of the farm channel as shown in FIG. 4, and the concrete poured between the cross formwork 23 and the adjacent cross formwork 23 is formed in the farm channel. The cross beam 12 is formed.

As such, when the basic formwork forming step (S21) is completed, the concrete is poured between the outer surfaces of the inner formwork 22 and the transverse formwork 23 and the inner surface of the foundation formwork 21 and cured to form the foundation portion ( 11) and the foundation portion forming step S22 for forming the cross beam 12 is performed, in which the concrete forming the foundation portion 11 and the concrete forming the cross beam 12 are not only simultaneously cast but also between the formwork. As the spaces are all communicated, as shown in FIG. 4, the base 11 and the transverse beam 12 have a completely integrated structure without a cold joint, thus ensuring maximum structural stability of the finished farm. Of course, it is also possible to effectively cope with the earth pressure acting on the back surface of the two channel walls 14.

That is, the weakness of the agricultural waterway to which the present invention is applied to which the bottom surface is opened and the lower ground is exposed can be overcome through the transverse beam 12 integrally formed with the base portion 11.

When curing of the base portion 11 and the cross beam 12 is completed, the foundation demolition step (S23) of removing the foundation outer formwork 21, the foundation inner formwork 22 and the cross-section formwork 23 is performed thereafter. Wall formwork building step (S31) for standing and building a pair of wall formwork 24, respectively, on the upper surface of the both sides of the base portion 11 is performed.

Wall formwork 24 is a standing formwork can be applied to various forms of support, such as bracing to support the wall formwork 24 for forming the two sides of the waterway wall 14, but the skilled person in consideration of the site conditions Since the matter can be selected and modified, no specific limitations of the claims are made.

When the wall formwork building step (S31) is completed, the waterway wall forming step (S32) of forming the waterway wall 14 by pouring concrete and curing the wall formwork 24 is performed, and curing of the waterway wall 14 is performed. When completed, the waterway wall demolition step (S33) to remove the wall formwork 24, and the backfilling step (S41) for filling by filling the soil on the back surface of the both sides of the waterway wall 14 is performed, the agricultural waterway to which the present invention is applied is completed. .

The agricultural water channel constructed through the above-described process, as shown in Figure 5, the bottom surface of the channel is mostly open to expose the lower ground as it is, to provide an environment similar to the natural channel, in particular, as shown in the lower view of Figure 5, the use of the agricultural water channel The opening part 13 is filled with high quality earth and sand due to the sedimentation generated in the process, thereby promoting the adhesion of aquatic plants and creating favorable conditions for spawning and habitat of aquatic animals.

In addition, as the opening part 13 is filled with soil by the retirement phenomenon, and the roots of the rooted plant are infiltrated and bound to the soil filled with water, the channel can be secured to the ground by preventing the sliding of the farm. have.

On the other hand, Figures 6 to 8 does not use the above-described internal inner formwork 22 and the cross-section formwork 23 in forming the open portion 13 of the bottom of the agricultural water, the preformed concrete rectangular box 30 As an embodiment used, the housing 30 is present after the curing of the base 11 and the transverse beam 12 is removed without maximizing workability and shorten the air.

That is, as shown in Figure 6, after the housing 30 is formed in the planar rectangular concave, the opening portion 13 is formed in the interior instead of the formwork on the bottom of the excavation portion, through the process as shown in FIG. The construction of the agricultural channel, the specific construction process is as follows.

As shown in Figure 7, when the trench step (S11) is completed, the foundation outer molds 21 are respectively installed on both side ends of the bottom of the excavation portion, the center of the rectangular concrete between the two outer foundation dies 21 is opened The enclosure installation step (S25) for installing the enclosure 30 is performed.

At this time, the housing 30 is to use the same material as the concrete of the agricultural waterway so that the entire structure after the completion of the waterway can be integrated.

When the housing installation step (S25) is completed, the bottom molding to cast and cure concrete between the outer surface of the housing 30 and the inner surface of the foundation outer formwork 21 to form the base portion 11 and the cross beam 12 Step S26 is performed, and when curing of the base portion 11 and the cross beam 12 is completed, the lower mold release step S27 for removing the base outer formwork 21 in the state where the housing 30 remains is performed. do.

That is, by forming the open portion 13 of the bottom of the agricultural waterway, the application of the detent type housing 30 may improve the construction convenience and shorten the air by eliminating the form dismantling work in the closed space, which is relatively difficult to dismantle. It is.

When the lower demolding step (S27) is completed, the above-described wall formwork building step (S31) to backfilling step (S41) is carried out to complete the farm.

The cross section of the agricultural waterway constructed through this process is as shown in FIG. 8, and as can be seen from the figure, it can be seen that the housing 30 is integrally present with the agricultural waterway structure, and in particular, the housing 30 is precast. When ready-made with concrete, it is possible to maximize the rigidity of the enclosure 30 itself by applying pressure molding, heating molding or prestressed concrete to the enclosure 30, thereby improving the structural stability of the entire farm.

11: Foundation
12: cross beam
13 opening part
14: waterway wall
21: foundation outside formwork
22: inside formwork of foundation
23: transverse formwork
24: wall formwork
30: enclosure
S11: trench step
S21: Foundation formwork stage
S22: Basic Forming Step
S23: Foundation demolition step
S25: enclosure installation stage
S26: lower molding stage
S27: lower demolding step
S31: wall formwork construction stage
S32: waterway wall forming step
S33: waterway wall removing step
S41: Backfill Step

Claims (2)

In the field casting construction method of the concrete agricultural water channel in which the bottom of the channel is opened and the ground is exposed to the outside,
Excavation step (S11) to excavate the planned installation point of the agricultural waterway and smoothly clean the bottom of the excavation portion;
The foundation outer formwork 21 is installed at both side end portions of the bottom of the excavation part, and the foundation inner formwork 22 and the cross-section formwork 23 are installed between the both foundational formwork 21, and the foundation inner formwork 22 and Cross formwork 23 is a basic formwork building step (S21) is installed closed to form a rectangular in plane;
A foundation part which casts and cures concrete between the outer surface of the inner formwork 22 and the inner formwork 23 and the inner surface of the foundation formwork 21 to form the foundation part 11 and the cross beam 12. Forming step (S22);
A foundation stripping step (S23) of removing the foundation outer formwork 21, the foundation inner formwork 22, and the transverse formwork 23 after curing of the foundation part 11 and the transverse beam 12 is completed;
A wall formwork building step (S31) for standing and building a pair of wall formworks 24 respectively on the upper surfaces of both side foundation portions 11;
A waterway wall forming step (S32) of pouring concrete into the wall formwork (24) and curing to form the waterway wall (14);
A waterway wall removing step (S33) of removing the wall formwork 24 when curing of the waterway wall 14 is completed;
Construction method of the bottom open-type eco-friendly agricultural waterway, characterized in that it consists of a backfill step (S41) for charging by putting the soil to the back of the waterway wall 14 on both sides.
In the field casting construction method of the concrete agricultural water channel in which the bottom of the channel is opened and the ground is exposed to the outside,
Excavation step (S11) to excavate the planned installation point of the agricultural waterway and smoothly clean the bottom of the excavation portion;
A housing installation step (S25) for installing a base outer formwork (21) at each of both side end portions of the bottom of the excavation portion, and installing a rectangular concrete enclosure (30) having a central portion open between both side base formwork (21);
A lower molding step (S26) of casting and curing concrete between the outer surface of the enclosure 30 and the inner surface of the foundation outer formwork 21 to form the foundation portion 11 and the cross beam 12;
When the curing of the base portion 11 and the cross beam 12 is completed, the housing 30 is a lower demolding step (S27) for removing the foundation outer formwork 21 in the state;
A wall formwork building step (S31) for standing and building a pair of wall formworks 24 respectively on the upper surfaces of both side foundation portions 11;
A waterway wall forming step (S32) of pouring concrete into the wall formwork (24) and curing to form the waterway wall (14);
A waterway wall removing step (S33) of removing the wall formwork 24 when curing of the waterway wall 14 is completed;
Construction method of the bottom open eco-friendly agricultural waterway, characterized in that it consists of a backfilling step (S41) for charging by putting the soil to the back side of the waterway wall (14).

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