KR200422924Y1 - pile for temporary well - Google Patents

Abstract

The present invention relates to a temporary soil wall construction pile, in the temporary soil wall construction pile formed by foaming polyurethane on the outer surface of the H beam 10 to form a urethane foam layer 11 of a predetermined thickness, the H beam Intermediate release material is inserted between the polyurethane foam and the urethane foam layer, which is excellent in drawing ability regardless of the appearance of the H-beam, and inexpensive mold release occupies 1/2 to 1/3 of the urethane foam layer, thus making expensive polyurethane It can reduce the cost by reducing the cost, and can provide a file for the construction of temporary wall walls that can shorten the working time because the file can be produced simply and easily at the factory or construction site.

Retaining Wall, H Beam, Release Material, Polyurethane, Concrete Column

Description

Temporary wall construction pile {pile for temporary well}

1 is a perspective view of the construction pile construction piles according to the present invention.

Figure 2 is a cross-sectional view of the construction of the temporary construction wall using the present invention

3 is a view showing a state of drawing the H beam of the pile to the outside after constructing the pile of the present invention on the temporary barrier wall.

  * Description of the symbols for the main parts of the drawings *

             10: H beam

             11: urethane foam layer

             20: Lee Hyung-jae

             21: rope

             22: wire

             30: slide cover

             31: unevenness

             40: concrete pillar

The present invention relates to a construction pile wall construction file having a release material on the surface of an H beam, and more specifically, a construction soil wall which is reusable after being buried in a concrete column to excavate the ground as a basic construction for building construction. It is about a construction file.

When excavating the ground in order to build new structures such as buildings, temporary earthquake walls should be constructed for the safety of earth and sand collapse and surrounding buildings in advance.

In the city center, the continuous wall method is mainly used. The continuous wall method increases the rigidity of the wall by inserting the H beam into the continuous wall.

In this continuous wall method, H beam is inserted into some or all of the pile holes pre-excavated in the ground, and concrete mortar is poured into the pile holes to construct the wall of the pile. Mortar is poured to cure concrete columns.

As described above, the earthen wall constructed by continuously curing the pillars of concrete has H beams embedded in some or all of the pillars of concrete, thereby more completely preventing the collapse of the ground.

The continuous wall construction method as described above causes waste of resources because the expensive H-beams are buried in a concrete pillar. In view of this, according to Korean Registered Utility Model Nos. 20-0362090, 20-0372006, and 20-0370627, a separate release material is coupled to the outer circumferential surface of the H-beam, and subsequently the H-beam embedded in the concrete pillar is drawn out. Introduced to make it possible to reuse the H beam.

However, the above-described release members are manufactured separately and assembled to the H beam, which is a cost increase factor and hassle due to assembly.

In addition, when the length of the H beam to be inserted into the pile hole is used to connect two or more H beams, the outer surface of the connection portion is padded and welded or fastened with bolts and nuts. Therefore, when the connection portion of the H beam is protruded to the outside or the outer shape is not smooth, it is difficult to bond the drawing material, and even when the H beam is drawn out.

In order to solve this problem, the applicant's registered utility model No. 20-0392543 is characterized in that the polyurethane foam layer of a certain thickness integrally formed by foaming the polyurethane on the entire outer surface except the upper end and the lower end of the H beam, The slide cover is installed at the edge of the H-beam formed in the urethane foam layer has been proposed for the construction of the temporary wall wall construction to facilitate the extraction of the H-beam from the urethane foam layer.

However, the above-mentioned design has a problem that the urethane foaming layer is in contact with the entire H beam and the adhesiveness of the urethane foaming layer is excellent, so that when the H beam is recycled or the H beam is properly covered with foreign matter, the adhesive strength is reduced. Although it is easy to draw, when using a new H-beam, the adhesive strength is relatively high, so it is difficult to pull out the expensive H-beam because it is not drawn well.

Therefore, the present invention has been made to solve the fundamental problems of the prior art,

The purpose of the present invention is to insert an intermediate media release agent between the H-beam and urethane foam layer to facilitate drawing regardless of the appearance of the H-beam, to reduce the manufacturing cost, and to simply work in the factory or construction site It is to provide a temporary piling wall construction pile for this convenience.

In order to achieve the above object, the present invention is a temporary soil wall construction pile formed by foaming polyurethane on the outer surface of the H beam to form a urethane foam layer having a predetermined thickness, and the intermediate media between the H beam and the urethane foam layer. Characterized in that formed by inserting.

Here, the release material is made of a rope, the rope is characterized in that the wire is inserted at a predetermined interval in the longitudinal direction and the middle of the rope is inserted in the middle of the wire.

In addition, the edge of the H beam is characterized in that the slide cover fitted in the longitudinal direction.

(Example)

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in more detail as follows.

Attached FIG. 1 is a perspective view of a construction pile construction file according to the present invention, FIG. 2 is a cross-sectional view of a construction construction of a construction soil wall using the present invention, and FIG. After that, the states in which the H beam of the pile is drawn out to the outside are shown.

As shown in FIG. 1, the present invention includes a release material 20 surrounding the outer surface of the H beam 10, and a polyurethane foamed on the outer surface of the release material 20 is inserted between the release material 20 and the H beam 10. It consists of a urethane foam layer (11) of a certain thickness integrally with).

Here, the release material 20 can be used as a cloth, non-woven fabric, but it is most preferable to use the rope 21 is easy to draw force and low cost.

A plurality of ropes 21 placed on the outer surface of the H beam 10 are fixed by inserting the wires 22 at regular intervals in the longitudinal direction, and the wires 21 in which the wires 22 are fitted are cut in the middle. When the H beam 10 is drawn out so that the rope 21 is not pushed overlap.

At this time, it is preferable to insert the polyurethane foam foamed on the outer surface when the wire rope 21 is inserted between the wires 22 to be attached to the outer surface of the H beam 10 at intervals, and the wire rope 21 may be inserted therebetween. The spacing so that the polyurethane is inserted into the cut surface of the rope 21 is firmly bonded to improve the bonding force of the urethane foam layer 11 and the H beam (10).

In addition, the urethane foam layer 11 is foamed polyurethane on the outer surface of the release material 20 to be attached to the outer surface of the H beam 10 through between the release material 20, the release material 20 is placed directly by spray There is a method of forming by foaming on the outer surface of the H beam 10 or by injecting a liquid polyurethane into the form using a formwork surrounding the H beam 10 and the release material 20.

Polyurethane for forming the urethane foam layer 11 is typically used as a waterproof insulating material for waterproof, heat insulation, insulation, light, durable and strong adhesiveness to smooth the cement, wood, stainless steel plate as well as iron plate Strong adhesion to the surface and good compressive strength.

In addition, the polyurethane is fully foamed within 4 seconds after foaming, and almost 20 seconds is hardened so that the urethane foam layer 11 can be quickly formed on the H beam 10.

Polyurethane used in the present invention is rigid and low in density it is preferable to use a semi-rigid semi-rigid foam or rigid foam. For example, a foamed polyurethane product produced by the German company Fischer, which is spray-type and turns yellow like a sponge after foaming, is good.

It is also preferable to insert the slide cover 30 in the longitudinal direction at the corner of the H beam 10 to improve the pulling force.

The slide cover 30 is made of plastic and has a shape in which the hose is cut in half in the longitudinal direction. The slide cover 30 is elastically fitted to the corners of the H beam 10, and then the release member 20 is placed on the outer surface of the corner to foam the polyurethane. The urethane foam layer 11 is formed.

The outer surface of the slide cover 30 is more preferable to increase the bonding force with the urethane foam layer 11 by forming the concave-convex (31).

The slide cover 30 is inserted at the corners of the H beam 10 so that the concrete pillar 40 and the H beam 10 do not directly contact each other even when the urethane foam layer 11 is broken when the pile is pulled out. To make it possible.

On the other hand, if the length of the H-beam 10 is short in the production of the present invention, the two or more H-beams 10 are connected to each other, and the connecting portion of the H-beam 10 after the padding and welding or fastening with bolts, etc. What is necessary is just to form the mold release material and the urethane foaming layer 11 in the outer surface. At this time, even if the outer surface of the H beam 10 is not smooth, such as the protruding of the connecting portion, the release material and the urethane foam layer 11 can be formed quickly and easily.

The present invention configured as described above, when constructing a temporary barrier wall, as shown in Figure 2, to form a pile ball along the ground excavation boundary site, and then the construction of the pile. At this time, after manufacturing the pile of the present invention in advance in the factory or in the field is inserted vertically into the pile hole, and then cast concrete mortar in the pile hole to cure the concrete pillar 40, the urethane foam layer 11 is a concrete pillar It is embedded in a state having a bonding force with the inner surface of (40).

After curing the concrete pillars 40 as described above, after constructing the wall of the earth and completing the construction of the underground structure, the H beam 10 is drawn out. At this time, the polyurethane foam attached to the outer surface of the H beam 10 is buried in the bonding force with the concrete pillar 40 and the H beam 10 is in contact with the release member 20 and the slide cover 30 of the corner portion The H beam 10 is easily drawn out.

In the above, the present invention has been illustrated and described with reference to certain preferred embodiments, but the present invention is not limited to the above-described embodiments, and the general knowledge in the technical field to which the present invention belongs does not depart from the spirit of the present invention. Various alternative changes and modifications will be possible by the possessor.

As described above, the present invention inserts an intermediate medium release material between the H beam and the urethane foam layer, and thus has excellent pullability regardless of the appearance of the H beam, and costs 1/2 to 1/3 of the urethane foam layer. Inexpensive release material occupies less expensive polyurethane, reducing costs, and can reduce the work time because the file can be produced simply and easily at the factory or construction site.

In addition, since it can be drawn out and reused without damaging the expensive H-beam used in the construction of the temporary wall, there is an effect that can significantly reduce the construction cost.

Claims (3)

In the pile for temporary wall construction, in which polyurethane is foamed on the outer surface of the H beam 10 to form a urethane foam layer 11 having a predetermined thickness, Temporary earth wall construction piles, characterized in that formed between the intermediate beam release material 20 between the H beam 10 and the urethane foam layer (11). The method of claim 1, The release material 20 is made of the rope line 21, the rope line 21 is a wire 22 is inserted at a predetermined interval in the longitudinal direction and the middle of the rope line 21 is inserted in the middle of the wire line 21 is cut Temporary wall construction file, characterized in that. The method of claim 1, Hypothesis wall construction piles, characterized in that the slide cover 30 in the longitudinal direction at the corner of the H beam (10).

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