KR101914004B1 - Temporary facility - Google Patents

Abstract

The present invention relates to an attachment type temporary facility, reducing an occupied space as compared to an existing temporary facility using a buried type mold in order to reduce an excavation amount and the number of a temporary facility member. Moreover, the present invention removes the additional mold. The present invention comprises: a sheet pile installed along the circumference of a foundation construction planning unit; a wailing installed in the horizontal direction along the inside of the sheet pile; a strut installed in an edge portion of the wailing; and a buried mold provided between the sheet pile and the foundation to be constructed and buried in the foundation in case of the application of the concrete.

Description

{TEMPORARY FACILITY}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a provisional installation installed for securing a space for a foundation structure, more specifically, by using a buried formwork, And it is possible to reduce the number of the provisional members, and furthermore, it is not necessary to separately install the formwork.

Generally, in order to construct structures such as an underground driveway, a subway, an elevated road, a bridge pier, a foundation of a well and an intake tower, it is necessary to excavate the ground and then to prevent the collapse of the oyster surface due to the earth pressure and infiltration of inflow water. Construction work is preceded. The above basic hypothesis is traditionally applied by a method of inserting a sheet file up to the bedrock.

As a conventional technique related to this hypothetical case, there is a registered patent No. 10-0998253 (Nov. 29, 2010) (Prior Art 1). In the conventional technique 1, the interval between wales is formed on the back surface of each wale band from both sides to the center It is possible to effectively prevent the ground from collapsing due to the earth pressure by stably supporting the back surface of the belt strip through the arc shape of gradually reducing shape or the reinforcing beams of the inclined structure on both sides without using the strut, And a technique capable of securing a wide excavation space of a building.

As a further conventional technique, there is a registered patent No. 10-1832461 (Feb. 20, 2018) (Prior Art 2). In the conventional technique 2, the existing H beam is removed and a high strength wale assembly and a strut assembly This paper proposes a retaining wall supporting the earth retaining walls with a large supporting force against earth pressure.

However, the prior arts including the above-mentioned prior arts 1 and 2 have a space for constructing the form between the sheet file (wall) and the base after the temporary installation, and the space of the sheet file or the belt is weak A reinforcing member such as a contact type stiffener or a welding type synthetic connecting member is used between the seat file and the wrist strap to prevent it from being damaged.

Also, since the space occupied by the construction of the formwork is large due to the space for the formwork construction, for example, in the case of construction at a high cost, the number of the controlled lanes increases, and the external space of the hypothetical building can not be utilized sufficiently.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to reduce the amount of the terra cotta and to reduce the number of the temporary installation members by securing a small space occupied by the buried formwork, And it is an object of the present invention to provide a contact type hypothetical case which does not need to be carried out.

Further, by allowing the buried form to completely close to both sides between the sheet pile and the foundation to be constructed, it is possible to omit a separate construction space of the formwork, thereby providing a reinforcing member and a composite connecting member To be omitted.

In addition, the additional purpose is to provide a viscous construction which is excellent in buffering effect, light in weight, and excellent in economy by constituting a buried mold form with a foamed styrene resin.

The present invention for solving the above-mentioned problems has the following structure and features.

The present invention relates to a sheet installation apparatus, which comprises a sheet file installed along the periphery of a base construction scheduled portion, a wale band installed horizontally along the inside of the sheet file, a brace material provided at an edge portion of the belt, And includes a buried mold that is embedded in a foundation upon concrete pouring.

Further, the buried formwork may be in close contact with the sheet pile on one side and on the foundation to be constructed on the other side.

Further, the embedding type mold may be configured to include a foamed styrene resin (Styrofoam).

According to the present invention having the above-described features and features, it is possible to reduce the amount of airtightness by reducing the space occupied in comparison with the conventional hypotheticals, and to reduce the number of the provisional installation members, and furthermore, It is possible to omit the reinforcing member and the synthetic connecting member which are the reinforcing means derived from the space portion for installing the formwork, and also has the effect of excellent buffering effect, light weight, and excellent economy.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating a process of a general temporary construction method. FIG.
2 is a plan view showing each configuration and structure of the present invention.
3 is a cross-sectional view taken along line AA of Fig.
4 is a sectional view taken along line BB of Fig.
Figure 5 is a detailed view of a flush mold.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

The present invention is a provisional facility installed for securing a space for constructing a foundation structure. By using the buried formwork, it is possible to reduce the amount of the terraces by securing the space occupied compared with the conventional hypotheses, The present invention relates to a contact type hypothetical case in which a mold is not required to be installed separately.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 relates to a general temporary construction method.

As shown in FIG. 1, the temporary construction method includes a sheet file construction step, a wig construction step, a rebound re-construction step, a form construction step, a basic construction step, and a hypothetical construction and a mold removal step.

Briefly explaining each step, the first step of the sheet pile construction step is a step of vertically installing the sheet pile around the construction site, in particular, the base construction scheduled part. To reinforce the sheet pile before this step, And a vertical frame such as an H-file may be provided in advance in the perforated hole so that the vertical frame can support the inside of the sheet file.

In the second step, the welt construction step is a step of installing a welt in the horizontal direction along the sheet file inside the constructed sheet file, wherein the welt can be constructed by connecting a plurality of steel members, H beams of the first and second light sources may be connected.

In the next step, the rebuilding step is a step of installing a bracing material on the corner of the applied band, and the bracing material is joined to one side and the other side of the side of the bracing belt, Add resistance to. In addition, after the rebuilding step, a water wall may be installed at the boundary between the soil layer and the rock layer to prevent the inflow of soil, ground water, or the like. Such an impeller wall may be constituted by a soil plate, a cement mortar, or the like.

The next step of the formwork construction step is a step of constructing the formwork in the space between the sheet file and the base part (the part where the foundation is to be constructed). In this step, the formwork for constructing the foundation is provided by pouring concrete .

In the fifth step, the basic construction step is a step of constructing concrete by placing concrete on the inside of the formwork. The contents of the concrete foundation construction can be referenced to well-known publicly known arts and general common sense of ordinary artisans.

In the following sixth step, the basic construction is completed through the sixth step, and the fifth step and the sixth step are a step of removing the sheet file, the wale band, the supporting material and the formwork, And will be briefly referred to in order to facilitate understanding of the present invention.

However, since the present invention utilizes the buried formwork, the step of removing the formwork can be dispensed with in the step of installing the formwork, and the step of removing the formwork can be omitted.

2 is a cross-sectional view taken along the line AA in FIG. 2, FIG. 4 is a cross-sectional view taken along line BB in FIG. 2, and FIG. 5 is a cross- This is a detailed view of the form.

2 to 5, the present facility T includes a sheet file 1, a wrist band 2, a strut 3, and a buried die 4.

The sheet file 1 corresponds to the outer periphery of the present facility T and prevents the soil and water from being introduced into the base part B ' As shown in FIG. 2, is installed along the periphery of the base portion B ', and a plurality of sheet files 1 are coupled to each other to form one wall, and are generally arranged in a rectangular planar shape.

Next, as shown in Figs. 2 to 5, the wristband 2 is provided for reinforcing the sheet pile 1 and is installed horizontally along the inside of the sheet pile 1, And preferably a plurality of H beams may be connected and configured.

Next, as shown in Figs. 2 to 5, the support member 3 has a structure in which the sheet pile 1 and the wale band 2 are reinforced to impart a resistance against an external force. In the corner portion of the wale band 2, One end is connected to one side which meets at the edge of the wristband 2 and the other end is joined to another side which meets at the edge of the wristband 2 so that the wristband 2 ).

2 to 4, the strut 3 is provided on the strut 31 and the strut 31 connected to both sides of the wrist strap 2 so that the length of the strut 31 A jack 32 for reinforcing the supporting force of the strut 31 by adjustment and a triangular bracket 33 coupled to the seat file 1 and supporting a strut 31 and a lower portion of the wing strap 2 can do.

4 and 5, the buried die 4, which is a core feature of the present invention, is installed to make the foundation B to be constructed into a predetermined shape and dimensions, (B) to be installed, and is embedded in the foundation (B) when concrete is poured for foundation (B) construction.

2 shows the embodiment in which the buried formwork 4 is applied only to the lateral part and not to the longitudinal part. This embodiment of FIG. 2 is intended to compare the features and effects of the buried formwork 4 with one (4) is not necessarily applied to all four sides of the facility (T) but may be applied to only some of the sides of the facility (T).

For example, in the case of assuming construction of a high-priced road, it is not necessary to apply the buried formwork 4 because it is not restricted by the space occupied by the hypothetical road in the longitudinal direction of the road (vehicle traveling direction) (The direction perpendicular to the traveling direction of the vehicle), it is preferable that the flushing mold 4 is applied at this time because it is possible to secure more passages (lanes) as the space occupied by the obstacle is minimized. 2, the lateral direction is the longitudinal direction of the road, and the longitudinal direction is the lateral direction of the road.

Since the present invention having the above-described features and features does not require a space for separate construction of the formwork by using the buried formwork (4) to be buried in the foundation (B) when pouring concrete, It is possible to reduce the amount of the terra cotta equipment, reduce the number of the temporary installation members, and provide the convenience of installation that does not require the installation of the formwork separately.

As shown in FIGS. 4 and 5, the buried die 4 is in close contact with the sheet pile 1, and the other side thereof is in contact with the sheet pile 1, And is adhered to the foundation (B) to be applied.

As shown in FIG. 3, which is a cross-sectional view of AA without the buried formwork 4, and FIG. 4 is a cross-sectional view of the buried formwork 4 with the buried formwork 4, In the hypothetical case, a space S for forming the formwork must be provided between the base B and the seat pile 1, and therefore, the space in which the pile is placed is large. As can be seen from FIG. 4, in the hypothetical example according to the present invention, since the buried formwork 4 is installed in close contact with the foundation B to be constructed and the sheetfilm 1, Is small.

According to this aspect of the present invention, the space occupied by the hypothetical space is minimized, as well as the reduction in the amount of wave equipment, the quantity of the hypothetical member, and the space other than the hypothetical space are maximized.

In addition, the present facility T is characterized in that the buried formwork 4 may comprise a foamed styrene resin (Styrofoam), wherein the buried formwork 4 comprising the foamed styrene resin has a buffering effect It is excellent, light and economical.

Meanwhile, in the present invention, the buried formwork 4 must be exposed to the outside until the foundation (B) is completed, and it is necessary to withstand the external force by soil and water, There is a possibility that it will be damaged by construction equipment and materials throughout the construction.

The present invention proposes a method for solving the above problem by providing a coating layer on the outer surface of the buried mold 4, especially the inner surface thereof.

According to an embodiment of the present invention, the buried die 4 may include a coating layer formed by applying and curing a coating agent.

Such a coating layer prevents damage due to impact, splashes caused by the pointed body, etc., as well as improved flame retardancy, improved composition due to rapid curing, and improved water resistance through water repellent treatment.

The coating composition of the present invention which provides the above-mentioned effect comprises 100 parts by weight of a binder resin, 1 to 10 parts by weight of an isocyanate prepolymer, 1 to 30 parts by weight of a polyester acrylate, 30 to 60 parts by weight of azobisisobutyronitrile, 0.5 to 5 parts by weight of azobis isobutyronitrile, 5 to 15 parts by weight of aluminum hydroxide, 1 to 5 parts by weight of dimethylaniline, 0.5 to 2.5 parts by weight of tetraethoxysilane.

For each constitution, it is preferable that the binder resin is first made of UV curing type, and the kind thereof is not particularly limited.

Next, the isocyanate prepolymer can be obtained by modifying a compound having two isocyanate groups by a method such as isocyanurate denaturation, trimethylol propane (TMP) denaturation, biuret denaturation, etc., and the binder resin If it is used in an amount of less than 1 part by weight, the crosslinking property decreases. When the amount of the crosslinking agent is more than 10 parts by weight, the crosslinking property is excessively increased, There is a problem that the possibility of breakage due to cracking increases.

Next, polyester acrylate is used as a crosslinking agent together with the above-mentioned isocyanate prepolymer. It is preferable that 1 to 30 parts by weight of the polyester acrylate is used relative to 100 parts by weight of the binder resin. When the amount is less than 1 part by weight, The surface of the coating layer is not cleanly formed, and when it is used in an amount exceeding 30 parts by weight, the crosslinking property is excessively increased and the surface of the coating layer becomes rough.

Next, methyl acetate is added as an organic solvent which ensures stable compatibility of the coating agent and provides solution polymerization. It is preferable that 30 to 60 parts by weight of the methyl acetate is used relative to 100 parts by weight of the binder resin, and 30 parts by weight , The viscosity of the coating agent becomes excessively high to deteriorate the flowability. When the coating agent is used in an amount exceeding 60 parts by weight, there is a problem that the environmental property is deteriorated or the environment regulation is seriously deteriorated.

Next, azobis isobutyronitrile is used as an initiator for radical generation. It is preferable that 0.5 to 5 parts by weight of the azobis isobutyronitrile is used relative to 100 parts by weight of the binder resin. When the amount is less than 0.5 parts by weight, sufficient radicals Ions can not be generated. When the amount is more than 5 parts by weight, there is a problem that the resulting radical ion lowers the total degree of polymerization and deteriorates the physical properties.

Next, aluminum hydroxide is added in order to prevent a specific combustion step in the process of burning the coating layer, and it is preferable that 5 to 15 parts by weight is used for 100 parts by weight of the binder resin. , The flame retardant effect is insignificant, and when used in excess of 15 parts by weight, the economical efficiency is lowered compared with the flame retardant effect.

Next, dimethylaniline is added to help radical generation of the azobisisobutylnitrile. It is preferable that 1 to 5 parts by weight of the dimethylaniline is used in 100 parts by weight of the binder resin, and less than 1 part by weight of the dimethylaniline is used It is not completely cured and when it is used in excess of 5 parts by weight, black spots or corrosion may occur on the surface of the coating layer.

Next, tetraethoxysilane is added to enhance the water repellency and water repellency of the coating layer by hydrolysis and condensation, and to improve the anticorrosive property. It is preferable that 0.5 to 2.5 parts by weight of the tetraethoxysilane is used in the range of 0.5 to 2.5 parts by weight based on 100 parts by weight of the binder resin. When used in an amount of less than 1 part by weight, the effect of improving waterproofness, water repellency and anticorrosion is insignificant, and when used in an amount exceeding 2.5 parts by weight, workability is lowered.

Hereinafter, embodiments of the coating layer using the coating composition will be described.

[Example]

As binder resin, 50 g of an isocyanate prepolymer, 200 g of polyester acrylate, 500 g of methyl acetate, 30 g of azobisisobutylnitrile, 100 g of aluminum hydroxide, 30 g of dimethylaniline and 20 g of tetraethoxysilane were added to 1 kg of epoxy acrylate oligomer And the mixture was stirred for about 1 hour to prepare a coating composition.

The coating composition thus prepared was applied to a test block (made of Styrofoam) and then completely cured to form a coating layer on the test block.

[Example 1]

Thereafter, scratching and scratching of the coating layer through the scratcher having irregular protruding portions and repeated scratching of the scratcher on the coating layer were repeated 10 times. As a result, scratches and cracks were not generated in the coating layer.

[Example 2]

As a result, it was confirmed that the internal test block was partially melted by heat, but the coating layer was slightly burnt but not burned at all.

[Example 3]

In addition, water was sprayed on the coating layer for 6 hours, the coating layer was removed, and the degree of internal infiltration of the test block was examined. As a result, no moisture was detected.

It can be seen from the above examples that the coating layer according to the present invention is excellent in protection property, flame retardancy and waterproofness.

While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

T: This facility (close-contact type hypothetical)
1: sheet file 2: wale
3: Strap 31: Strap
32: Jack 33: Bracket
4: Molded formwork B: Foundation
B ': Basic example S: Space part

Claims (4)

A sheet file installed along the periphery of the base construction scheduled portion;
A wristband installed horizontally along the inside of the sheet pile;
A strut which is provided at an edge of the strand and has both ends connected to one side and the other side of the edge of the strand; a jack provided on the strut to adjust the length of the strut; A brace material including a triangular bracket for supporting a lower portion of a belt; And
A buried form disposed between the sheet pile and a foundation to be constructed, the buried form being embedded in a foundation upon concrete pouring;
/ RTI >
Wherein the one surface of the buried mold is in close contact with the sheet pile and the other surface is in close contact with a foundation to be constructed,
Wherein the embedding mold comprises a foamed styrene resin (Styrofoam)
The buried mold further comprises a coating layer provided on the outer surface by applying and curing a coating agent,
The coating agent may contain 100 parts by weight of a binder resin, 1 to 10 parts by weight of an isocyanate prepolymer, 1 to 30 parts by weight of a polyester acrylate, 30 to 60 parts by weight of methyl acetate, 0.5 to 5 parts by weight of azobisisobutyronitrile, 5 to 15 parts by weight of aluminum hydroxide, 1 to 5 parts by weight of dimethylaniline and 0.5 to 2.5 parts by weight of tetraethoxysilane And a contact-type hypothetical feature. delete delete delete

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