KR101945998B1 - Underground column wall construction method using waterstop rubber and geo-tube, and underground column wall therewith - Google Patents

Abstract

The present invention relates to an underground column wall construction method using water stop rubber and geo-tube and an underground column wall built by using the same. With the present invention, the geo-tube provided with the water stop rubber can be positioned at the boundary between an established pole and a spot placing concrete column, and thus water stop performance can be maximized. The underground column wall construction method includes (a) constructing the established poles apart from each other; (b) forming a perforation hole (B) for the spot placing concrete column between the established poles and bringing the outer peripheral surface of the perforation hole into contact with the established pole boundary to prevent an overlapping portion (A) from being formed; (c) inserting the geo-tube having water stop rubber fixed on both sides thereof into the perforation hole (B) so that the water stop rubber is positioned at the boundary (A) between the established pole and the spot placing concrete column; and (d) placing and curing the on-site concrete (C) in the geo-tube so that the water stop rubber expands at the boundary and water stop performance is ensured at the boundary.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of constructing a submerged wall structure using a water expansion index material and a submerged tube, and a submerged wall structure constructed using the submerged wall structure and a submerged wall structure using the same,

The present invention relates to a method of constructing a main thermal type wall structure using a water expansion index material and a submerged tube, and a main heat type ground wall constructed using the same. More specifically, it is possible to place the underground tube equipped with the water expansion index material at the boundary between the existing pile and the pile of the cast-in-place concrete, and to provide a water expansion index material and water- And a main heat-type ground wall constructed using the same.

Among the construction methods of the temporary toothed wall, the casting wall method is divided into CIP (Cast In Place Pile) method and SCW (Soil Cement Wall) method.

In the CIP method, after piercing to a predetermined depth with a predetermined diameter using a punching machine, a reinforcing net is inserted into the excavation hole and concrete is poured to form a pile of cast concrete. A method in which main heat is in contact with each other) is continuously applied to form a main heating type wall.

At this time, the H file is inserted at a predetermined interval instead of the reinforcing net to improve the strength. However, since the boundary between the main heat (concrete pile) is not completely sealed, the CIP method is inferior in watertightness, and therefore, it is possible to cause a problem in which a separate grouting operation is required for the order.

A method for solving the order problem has been introduced in the construction of the main heating type wall by the CIP method.

Figure 1A shows a conventional CIP file continuous wall construction.

That is, the CIP file continuous wall 1 is a CIP file including a plurality of concrete columns partially overlapping with each other and having a superposition portion 5, and a steel beam 12 embedded in the interior of the concrete column and extending vertically, (2).

In other words, in the CIP method, because the construction is continuously performed in a state where the outer circumferential surfaces are in contact with each other, the outer circumferential surfaces of the cast piles are overlapped with each other, And the overlapping portion 5 is formed so as not to penetrate into the portion where the outer circumferential surface abuts.

Therefore, although some problems can be solved in the CIP method, if the construction management and quality control are not performed in actual site, the overlapping part (5) can not be formed sufficiently. Since the number of concrete piles to be constructed is increased due to the formation of the overlapping portion 5, efficiency and economical efficiency are inevitably reduced.

1B shows a flow chart of a conventional method of installing a permanent-type permanent wall.

That is, the excavation hole 11 having a diameter larger than the diameter of the composite shell file is excavated in a state in which the outer circumferential surface thereof abuts, and the composite shell file 20 having the excavator hole 11 bonded with the steel plate fixing device 21 is inserted , A filler is injected into the composite shell file, and the filler is inserted into the fixture by inserting the filler into the composite shell, thereby forming a hot-walled permanent wall between the adjacent composite shells, And has a width greater than the design interval of the composite shell file.

In other words, the composite shell file 20 is installed in which the waterproofing fixture 21 can be installed since the waterproofing fixture 21 on which the waterproofing plate 30 can be installed can not be installed directly on the poured concrete pile.

At this time, the water level plate 30 serves as a function of joining between the outer circumferential surfaces of the composite shell piles 20, and is made of a rubber or plastick material having a constant strength as a flexible material, can do.

In order to insert the waterproof plate 30 into the waterproofing plate 21 of the composite shell file 20 previously installed on the ground, the flexible property is used, but the distance between adjacent waterproofing fixtures 21 It is not easy to insert the diaphragm 30 separately because of the construction error of the perforation hole 11, which may cause a problem of defects such as breakage in the installation process. In addition, even if the light guide plate fixing device 21 is integrated with the outer circumferential surface of the composite shell file 20, there is a problem that the light guide plate 20 may actually fall off.

Korean Unexamined Utility Model Publication No. 90-20397, entitled "Understanding of Between Panels in Underground Continuous Wall Method, Disclosure Date: December 13, 1990" Korean Patent No. 10-1066612, entitled "Composite Shell File Having Index Plate and Method of Ordering Permanent Walls Using the same", published on September 22, 2011) Korean Patent Laid-Open No. 10-2018-0004985 (title of invention: CIP file continuous wall construction, published on Jan. 15, 2018) Korean Patent No. 10-1812265 (Title of the Invention: Overlap Cylindrical Member with Wear-Touched Contact and Method for Construction of Main-Heat Type Watertight Wall Using It, December 26, 2017)

Accordingly, in the present invention, in order to ensure the efficiency and economical efficiency, the water expansion index material is simply placed at the boundary between the foundation pile and the cast-in-place concrete in the construction process A method of constructing a self-heating type submerged wall structure using a water expansion index material and a submerged tube capable of surely securing the order performance at the overlapping portion due to the volume expansion of the water expansion index material, Thereby providing a wall.

Also, in order to solve the problems caused by poor management of various piling concrete pile construction, the field cast concrete can be accommodated by underground tube in the ground, so that it can be used as a water expansion index material capable of more precise construction and order effect enhancement, Another object of the present invention is to provide a method for constructing a main heating type subway wall using a tube and a main heating type subway wall constructed using the same.

In order to achieve the above object,

(a) constructing the constructed piles apart from each other; (b) forming a perforation hole (B) for a pile of concrete piles in the space between the preformed piles, wherein an outer circumferential surface of the perforated hole is in contact with a boundary of the preformed pile so that an overlapping portion (A) is not formed; (c) inserting an underground tube having water expansion indices fixed on both sides thereof into the perforation hole (B) so that the water expansion index material is positioned at the boundary portion (A) of the foundation pile and the pile; And (d) inserting and curing the site-dumped concrete (C) in the underground tube so that the water expansion index material expands at the boundary so that the order performance at the boundary is ensured. And the water expansion index material is fixedly fixed to the boundary portion (A) by the underground tube while the poured concrete pile is formed,
Wherein the water expansion index material of step (c) is fixed to both sides of the underground tube by fixing bolts, wherein the fixing bolts are fastened to the threaded part passing through the underground tube and the water expansion index material, And the water expansion index material of the step (c) is fixedly set on both sides of the tube by installing a water expansion index material fixed by fixing bolts on both sides of the underground tube, And the bending portion is attached to the side surface of the underground tube by an adhesive, and the bending portion is attached to the side surface of the underground tube by the adhesive, The portion is formed in a rectangular parallelepiped shape in which both side openings are formed so that the bending portion can be penetrated from the side surface, So that by thus providing the main thermal type underground wall construction method using a swelling index material and the tube can be ground to help reduce the weight and check whether through-bending portion.

According to the present invention, it is possible to improve the efficiency and economical efficiency by using the foundation pile and the cast concrete to construct the main heating type wall structure without forming the overlapped part in the construction of the main heating type underground wall by the CIP method, And the order performance is secured by the water expansive index material installed in the underground tube, thereby maximizing the order effect.

According to the present invention, in the construction of the main-heating type underground wall by the CIP method, since the plane error and the vertical error are inevitably generated due to various heterogeneities of the ground in the existing piercing, it is difficult to cope with the plane error, Even if there is an error, it is possible to install the water expansion index material before concrete pouring, and the underground tube which can change the shape freely, so that the water expansion index material which can cope with various construction errors occurring in the overlapping part can be installed easily. It is possible to fundamentally solve the problem of the degree of the wall in the main heat exchanger.

FIG. 1A is a conventional CIP file continuous wall construction view,
1B is a flow chart of a conventional method of installing a permanent-type permanent wall,
FIGS. 2A, 2B, 2C, and 2D are views showing the construction of a main heating type under-floor wall using the tube of the water expansion index material of the present invention,
FIGS. 3A, 3B and 3C illustrate a flowchart of a method of constructing a self-contained underground wall using a water expansion index material and an underground tube according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Exploded Index Material of the Present Invention and Submerged Wall Substructure (100) Using Submerged Tube)

FIGS. 2A, 2B, 2C, and 2D illustrate the construction of a main thermal under-floor wall 100 using the water expansion index material 120 and the underground tube 160 of the present invention.

2A, the preformed pile 130 is placed between the preformed pile 110 and the preformed concrete pile 130, as shown in FIG. 1A, ).

The water expansion index member 120 is positioned at the boundary between the foundation pile 110 and the pile 130. The water expansion index member 120 is formed in the boundary between the foundation pile 110 and the pile 130, Which is integrally fixed to both sides of the underground tube 160 to be inserted into the underground tube 160.

The water expansion index material 120 can be accurately set at the boundary between the existing pile 110 and the pile 130 placed in the field when the locally laid concrete C is laid and cured in the underground tube 160, The performance can be assured more reliably, and the water expansition index material 120 expands while being in contact with ground water or the like.

For example, when using a PHC file, the preformed pile 110 may be formed by forming a perforation hole and inserting a PHC file.

As shown in FIG. 2A, the water expansition index material 120 expands at the boundary between the existing pile 110 and the pile 130 when the pile 130 contacts the ground water, And the like.

The water expan- sion index material 120 is set to be positioned at a boundary over the entire construction depth of the foundation pile 110 and the pile 130 placed in the field. The present invention uses the underground tube 160 to be described later. That is, the water expansive index agent 120 is fixedly installed on both sides of the cylindrical support tube 160.

As shown in FIG. 2A, the above-mentioned on-cast concrete piles 130 are formed by previously forming a perforation hole between the foundation piles 110, but not by overlapping portions, and by placing a cast concrete (C) The underground tube 160 installed on both sides of the expansion index material 120 is first inserted into the perforation hole and the concrete placed in place is placed in the underground tube 160.

As shown in FIG. 2A, the underground tube 160 serves as a tube of a flexible material that is opened at the upper part and serves to house the placed concrete C2 while being filled therein. The water expansion index material 120 is disposed on both sides So that it plays a role of setting the position of the water expansition index member 120.

In addition, since the underground tube 160 accommodates the site-dumped concrete C, it is possible to secure the quality of the placement of the site-cast concrete pile 130 at the correct position even if a construction error occurs, It also plays a role.

Referring to FIGS. 2B, 2B, and 2C, a connection structure between the water expansive index agent 120 and the underground tube 160 can be observed.

Referring to FIG. 2B, it can be seen that the underground tube 160 is spread at a predetermined height, and the distal end surface can be opened or closed. In order to be flexible, the lower tube 160 is kept in an overlapping state, So that the perforation hole can be inserted.

It is also understood that the water expansition index material 120 extending vertically on both sides of the underground tube 160 is in the form of a vertical block and can be fixedly installed on both sides of the underground tube 160 by the fixing bolts 140 .

It can be seen that the fixing bolts 140 are used for fixing the water expansition index member 120 and for maintaining the shape of the underground tube, and the fixing bolts 140 can be arranged in a cross shape, .

As shown in FIG. 2B, the fixing bolt 140 is formed as a bar member having a smaller diameter at its end portion, and a threaded portion is formed. The threaded portion passes through the underground tube 160 and the water expansive index member 120, It can be seen that the water expansition index material 120 is pressed and fixed to the side of the underground tube 160 while being fastened.

When the front end surface of the underground tube 160 is closed, there is an advantage that the installation space of the site-laid concrete C is surely secured. If the front end of the underground tube 160 is not closed, the overpressure is partially canceled through the front end portion, .

Referring to FIG. 2C, an exponent refining apparatus 150 for fixing the water expansion index material 120 to both sides of the underground tube 120 can be considered.

That is, since the positional variation of the water expansition index material 120 will affect the order performance, the index exponent 120, which is attached to the side of the underground tube 160 while covering the water expansition index material 120, The apparatus 150 is installed.

2C, the indexing device 150 includes a pressing part 151 positioned on the upper surface of the water expansition index material 120 and a bending part 151 having both sides thereof attached to the side surface of the underground tube, And a part 152,

The bending portion 152 is surely attached to the side surface of the underground tube 160 by the end bonding portion of the adhesive tape or the like.

At this time, the pressing portion 151 is formed in a rectangular parallelepiped shape in which both side surface openings are formed so that the bending portion 152 can pass through from the side, so that the surface opening 153 is formed so that the weight can be reduced while confirming whether the bending portion is penetrated do.

The bending portion 152 extends through both side openings and extends to both sides of the pushing portion, so that the bending portion 152 serves as a band for pressing the water expansive index member 120.

It can be seen that the fixing bolts 140 can be arranged in a cross shape, upper and lower, even when the index fixing device 150 is used.

According to FIG. 2D,

It can be seen that the distal end of the underground tube 160 is closed, a plurality of fixing bolts 140 are arranged in a cross shape upward and downward, and the exponential holding device 150 is installed on both sides.

A steel reinforcing assembly or a steel beam 161 may be installed inside the underground tube 160. The steel reinforcing assembly or the steel beam 161 may be installed without the fixing bolts 140. In the case where the fixing bolts 140 are provided The reinforcing steel assembly or the steel beam 161 may be additionally installed in the empty space.

[Method of constructing the internally-heated underwater wall (100) using the water expansion index material and the underground tube of the present invention]

FIGS. 3A, 3B, 3C, and 3D illustrate a flowchart of a construction method of a main heating type underground wall 100 using the water expansion index material 120 and the underground tube 160 of the present invention.

This construction method is a method of constructing the main heating type wall so that the overlapped portion A as shown in FIG. 1A is not formed in the ground G and the piling 130 of the cast-in-place concrete, 120 are installed at the time of installing the cast concrete pile 130 by using the underground tube 130 and the performance of the boundary between the pile 110 and the pile 130 installed by the water expansion index material 120 It can be said that it is enough to secure sufficient.

As shown in FIG. 3A, the foundation G is constructed so as to be spaced apart from each other.

This type of pile 110 is constructed in such a manner that a perforation hole is first formed in the ground G and then inserted into the foundation G. After the foundation pile 100 is installed below the exponential level, .

Next, a perforation hole is additionally formed between the pre-piles 110, and the perforation hole B is for constructing the pierced concrete pile 130, and the outer circumferential surface of the perforated hole is in contact with the interface with the pre- .

The diameter of the pre-pile 110 is shown to be larger than the perforation hole for the concrete pile 130, but the difference in diameter may be arbitrarily adjusted.

Next, as shown in FIG. 3B, the underground tube 160 having the water expansion index material 120 of the present invention fixed on both sides is inserted into the perforation hole for the concrete pile 130, Is placed on the boundary surface between the existing pile 110 and the pile 130.

The underwater tube 160 in which the water expansition index material 120 is fixed on both sides can be fixedly installed on both sides by using the fixing bolts 140 as shown in FIG. The distal end of the tube 160 may be closed or open.

2C and FIG. 2D, the water expansition index material 120 may be fixed to both sides of the underground tube 150 by using the exponent holding device 150 and the fixing bolt 140. FIG.

The index tube 150 may further include a reinforcing assembly or a steel beam 161 inside the underground tube 160. The index retention device 150 may include a pressing part 151 positioned on the upper surface of the water expansition index material 120, And a bending portion 152 passing through the pressing portion 151 and having both side surfaces attached to the side surface of the underground tube.

As shown in FIG. 3C, the site-dumped concrete C is placed and cured in the underground tube 160. In this process, the underwater tube 160 is expanded while the water expansition index material 120 is fixed at the interface .

As shown in FIG. 3D, the main heating type wall D formed by the pile 110 and the piling 310 can secure the order performance by the water expansion index material 120 located at the side, and the back ground G1 , The front ground G2 is excavated and used as a road or the like.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: main heating type underground wall 120: water expansion index material
130: Placed concrete pile 140: Fixed bolt
150: exponent refinement device 151:
152: band portion 153: surface opening
160: underground tube 161: steel assembly or steel beam

Claims (6)

(a) constructing the constructed piles 110 apart from each other;
(b) forming a perforation hole (B) for a pile of concrete piles between the pre-piles (110), wherein an outer circumferential surface of the perforated hole is in contact with a pre-pile boundary so that an overlapping portion (A) is not formed;
(c) inserting an underground tube (160) having water expansion indices (120) fixed on both sides thereof into the perforation hole (B) to form a water swell in the boundary portion (A) of the foundation pile Allowing the exponent material (120) to be positioned; And
(d) placing and curing the site-dumped concrete (C) in the underground tube so that the water expansion index member (120) expands at the boundary portion so as to secure the order performance at the boundary portion,
The water casting exponent 120 is fixed to the boundary A by the underground tube 160 while the cast concrete pile 130 is formed between the foundation piles 110,
The water expansition index material 120 of the step (c) is fixed to both sides of the underground tube 160 by the fixing bolts 140. The fixing bolts 140 are connected to the underground tube 160 and the water expansion index A fixing nut is fastened to a threaded portion passing through the material 120 so that the water expansition index material 120 is fixed on both sides of the underground tube 160,
The water expansion index material 120 of the step (c) may be obtained by installing the water expansion index material 120 fixed on both sides of the underground tube 160 by the fixing bolts 140, The indexing device 150 includes a pressing part 151 positioned on the upper surface of the water swell index material 120 and a banding part 151 having both sides thereof attached to the side surface of the underground tube through the pressing part 151, And the bending portion 152 is attached to the side of the underground tube 160 by an adhesive so that the bending portion 152 can be pierced from the side A method of constructing a submerged wall using a water expansion index material and a submerged tube, the method comprising the steps of forming a surface opening (153) in the form of a rectangular parallelepiped having both side openings formed therein so as to reduce the weight while confirming the penetration of the bending portion. The method according to claim 1,
In step (a), the pile 110 may be formed by first forming a perforation hole in the ground, inserting a foundation pile including a PHC pile into the perforation hole, and installing a water expansion index material using an underground tube Construction method. delete delete The method according to claim 1,
The method of claim 1, wherein the inner tube (160) of the step (d) is further provided with a reinforcing steel assembly or a steel beam (161). A self-contained underground wall body manufactured by a method of constructing a self-contained underground wall structure using a water expansion index material according to any one of claims 1, 2, and 5 and an underground tube,
A plurality of spaced-apart constructed piles 110; A perforation hole (B) for a pile of concrete piling formed between the piles (110) so that an outer circumferential surface thereof is in contact with a boundary of the pile to prevent the superposition portion (A) from being formed; A water inflation index material 120 is fixed to both sides of the perforation hole B so that the water expansion index material 120 is positioned at the boundary A between the foundation pile 130 and the foundation pile 130, (160); And (d) a cast-in-place concrete (C) placed and cured so as to secure a water-conducting performance at a boundary portion of the water-swellable index material (120)
A water expansion index material for allowing the water expansion index material 120 to be fixed by the underground tube 160 to the boundary A while forming the cast concrete pile 130 between the foundation piles 110, A self - powered underfloor wall constructed by using a tube - type submerged wall construction method.

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