KR101960499B1 - Underground column wall construction method using waterstop rubber and waterstop housing, and underground column wall therewith - Google Patents

Abstract

The present invention relates to a column type underground wall construction method using a water-expandable water stoppage material and a water-expandable reaction housing and a column type underground wall constructed by using the same, which are possible to maximally secure a water stoppage function so that the water-expandable reaction housing having the water-expandable water stoppage material on an overlapped portion of a cast-in-place concrete pile and a precast concrete can be positioned thereon. The present invention is possible to simply install the water-expandable water stoppage material on the overlapped portion of the pile, thereby being possible fundamentally solving a water blocking problem of the column type underground wall by securing the water blockage function.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a submerged wall structure using a water expansion index material and a water inflation reaction force bracket and a submerged wall structure constructed using the same and a submerged wall structure using the same,

The present invention relates to a method of constructing a main heating type underground wall using a water expansion index material and a water expansion reaction force bracket, and a main heat type ground wall constructed using the same. More specifically, a water expansion member having a water expansion index material is placed in the overlapping portion between the pile and the pile, and the water expansion index member and the water expansion member The present invention relates to a method for constructing a main heating type subway wall and a main heating type subway 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.

Conventional methods for solving the order problem have 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 conventional CIP file continuous wall 1 has a plurality of concrete columns partially overlapping with each other with the main heat having overlapping portions 5, and a steel beam 12 embedded in the interior of the concrete columns and extending vertically And a CIP file (2) including the CIP file.

That is to say, in the CIP method, since the concrete piles placed in situ are continuously applied in a state in which the outer circumferential surfaces are in contact with each other, an order performance problem arises, so that the outer circumferential surfaces of the piles of the cast concrete are overlapped with each other so that the groundwater can not penetrate into the portion Thereby forming the overlapping portion 5.

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 die plate 30 plays a role of interposing between the outer circumferential surfaces of the composite shell pile 20, and can be said to be made of a rubber or plastic material having a constant strength as a flexible material, .

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 a large number of unevenness due to a construction error of the perforation hole 11, which may cause a problem of defects such as breakage in the installation process do. 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, the present invention allows a water expansion index material to be vertically set on a superposed portion formed in a construction of a self-contained type of underground wall by a CIP method, The present invention provides a method for constructing a main heating type subway wall structure using a water expansion index material and a method for providing a main heating type subway wall construction using the same.

Also, in order to solve the problems caused by various construction errors, a method of constructing a submerged wall structure using a water expansive index material capable of accommodating more precise construction by allowing a locally buried concrete to be received by a submerged tube in the ground, Another object of the present invention is to provide a submerged submerged wall.

In order to accomplish the above object, there is provided a method for constructing a main thermal type subway wall structure using a water expansion index material and a water expansion reinforcement metal, and a submerged wall construction using the method, the method comprising the steps of: (a) And forming a primary site-cast concrete pile by placing the primary site-laid concrete (C1) in the perforation hole for the primary site-laid concrete pile; (b) forming a perforation hole for a secondary pouring concrete pile between the perforation holes for the primary pouring concrete pile so that the superposed portion (A) can be formed; (c) a pre-pile pile inserted into the perforation hole for the secondary site-dumped concrete pile, wherein the pile expansion index material is previously fixed to the pre-pile pile, and the pile expansion index of the pre- So as to be set in the overlapped portion together with the preformed pile while being inserted into the perforation hole; And (d) placing a second field-poured concrete (C2) into the hollow portion of the foundation pile, wherein the water expansion index material expands and further secures order performance in the overlapping portion,
The method according to any one of claims 1 to 3, wherein the first submerged concrete is placed in the submerged tube by disposing a submerged tube on a side of the perforation hole for the first submerged concrete pile in step (a) The underground tube is cut while forming the perforation hole for the concrete pile, so that the water expansion index material is set in the cut underground tube.

According to the present invention, it is possible to easily install the water expansion index material in the overlapped portion in the construction of the main heating type underground wall by the CIP method, so that the order problem of the main heating type subfloor can be fundamentally solved do.

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,
FIG. 2 is a structural view of a main heating type underwater wall body using the water expansion index material and the water expansion reaction force tool of the present invention,
FIGS. 3A, 3B, and 3C illustrate embodiments of a method of constructing a self-contained underground wall using a water expansion index material and a water expansion reaction force bracket of 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.

[Internally-heated underground wall member (100) using the water expansion index material and the water expansion reaction force bracket of the present invention)

FIG. 2 is a structural view of a main heating type submerged wall body 100 using the water expansion index member 120 and the water expansion reaction force fitting 150 of the present invention.

The ground type submerged wall body 100 is formed in a form of a vertical circular column previously formed in the ground so that the side portions of the perforation holes 310a and 310b are overlapped with each other to form an overlapping portion A, The pile 110 is inserted into the pile 110 and the pile 120 is installed in the pile 110 by means of the pile 150 so that the pile 110 is inserted into the pile 110, Is set by the existing pile (110) naturally.

3A and 3B. Referring to FIG. 3A, the primary site-laid concrete pile 130 includes a perforation hole 130, 310a are spaced apart from each other in the longitudinal direction (longitudinal direction), and then the primary site-laid concrete C1 is filled in the perforation hole 310a.

Referring to FIG. 3A, a perforation hole 310b is again formed between the cured primary site-laid concrete C1.

The foundation pile 110 inserted into the perforation hole 310b is installed such that the superposed portion A is formed between the primary site-laid concrete piles 130.

The reason for forming such a superposed portion A is that since the groundwater is penetrated into the construction due to the construction of the primary pile 130 and pile 110 with time difference, It is possible to say that underground water is prevented from penetrating above the gravity site by making the construction joint part overlap with the onsite concrete and foundation pile.

However, even if the construction is performed by the method of forming the overlapping portion A, if the quality of the construction is not ensured, the overlapping portion A will eventually be defective.

The present invention further secures the order performance by providing the water expansition index material 120 to the lapping portion A. The water expending exponent material 120 is arranged in the overlapping portion A at the first site It is necessary to arrange the pile 130 with the entire formed depth of the pile 130 and the pile 110 and to set the pile 130 together with the pile 110 so that the pile 120 To be set.

To this end, the present invention is characterized in that the water expansion index member 120 is previously installed on the foundation pile 110 using the expansion bulb 150 and the foundation pile 110 is inserted into the piercing hole 310b, The index material 120 is arranged in the longitudinal direction at the central portion of the overlapping portion A so that additional order performance is additionally secured.

That is to say, the existing pile 110 has an extension length corresponding to the total formation depth of the primary pile 130, and the verticality required for fixing the water expansion index member 120 can be secured .

For example, a PHC file, a steel pipe file, or the like may be used as the foundation pile 110, and a water expansion index material 120 may be fixedly installed on the outer circumferential surface thereof.

That is, the water expansition index member 120 is accommodated in the water expansion reaction force fitting 150 and the water expansion reaction force fitting 150 is fixed to the outer circumference of the foundation pile 110. The U-shaped steel pipe may be formed integrally with the base pile 110 in advance as the water expansion reaction force bracket 150.

If the water swell index material 120 is previously inserted into the inner space S1 of the water swell reaction force fitting 150, efforts to install the water swell index material 120 are not required, and the water swell index material 120 Is accommodated in the inner space S1 of the male expansion bulb 150 so that it is possible to prevent the positional deviation or breakage of the stem such as separation when inserting the same into the perforation hole 310b together with the pre- .

Accordingly, when the water expansition index material 120 accommodated in the inner space S1 is brought into contact with the ground water or the like, the water expands and bulges toward the opening of the U-shaped shaped steel while securing the order performance of the overlapping portion A.

At this time, the flange opening S2 formed in the flange on the opposite side of the opening of the U-shaped section steel is additionally formed, so that the water expansion index member 120 expands to the flange opening side, thereby ensuring the order performance.

That is, the volume expansion direction of the water expansition index member 120 can be induced to effectively control the lapping performance of the lapping portion (A).

When the perforation hole 310b for forming the preliminary pile 110 is formed, both side portions of the first-stage cast concrete pile 130 are cut. At the center of the cutting site, the water expansion index material 120 is punched 110, and the secondary site-laid concrete C2 is poured into the hollow portion of the pre-pile 110 to finish the construction. The water expansition index material 120, when ground water or the like comes into contact, The groundwater is not infiltrated, so that it becomes the order.

As shown in FIG. 2A, the primary site-cast concrete pile 130 and the existing pile 110 are constructed in the same manner. When the foundation pile 110 is constructed, the underground tube 160 is further used. It can be seen that the water expansion index member 120 can be installed on the outer circumferential surface by the water expansion reaction force fitting 150. [

The underground tube 160 is a flexible tube having a larger diameter than the diameter of the foundation pile 110, with the tip closed and the upper open.

It can be seen that the water expansion index member 120 is formed on the outer circumferential surface of the underground tube 160 while the foundation pile 110 is positioned inside the underground tube 160.

Of course, one or more water expansions 120 may be installed in the foundation pile 110 and the underground tube 160. When the underground tube 160 is used, a water expansion bulb 110 150 may not be installed, and the underground tube 160 may be brought into close contact with the outer circumferential surface of the foundation pile 110, so that the order performance by the underground tube can be compensated.

[Method of constructing a core-type submerged wall structure using the water expansion index material and the water expansion reaction force fitting of the present invention]

FIGS. 3A, 3B, and 3C illustrate embodiments of a method of constructing a self-contained underground wall using a water expansion index material and a water expansion reaction force bracket of the present invention.

This is a method of constructing the self-contained underground wall 100 using the water expansion index material 120 shown in FIG.

First, in the method of constructing a main thermal type underground wall using the water expansion index material 120 and the water expansion reaction force bracket 150 according to FIG. 3A, the water expansion index material 120 is applied to the outer peripheral surface of the initial pile 110, 150 in a fixed state.

First, a perforation hole 310a is formed in the ground where the main heating type ground wall is installed.

That is, the perforation hole 310a for the first-stage on-site concrete pile 130 is first spaced apart in the longitudinal direction using an excavator (not shown). At this time, the spacing distance may be smaller than the diameter of the perforation hole 310a, and the diameter and depth of the perforation hole 310a may be determined according to the main-heating type underground wall member 100. [

At this time, it is understood that if the drill hole 31a is formed down to the underground water surface and the drill holes 310a and 310b extending to the underground water surface are installed in the underground drill hole 100, the problem arises.

The primary site-laid concrete C1 is filled in the perforation hole 310a for the primary site-pierced concrete pile 130. At this time, the steel frame assembly is inserted into the perforation hole 310a to be buried. This completes the construction of the primary site-laid concrete pile 130.

Next, the perforation hole 310b for the existing pile 110 is formed so that the overlapped portion A can be formed before the primary site-laid concrete C1 of the primary site-laid concrete pile 130 is completely cured. Respectively.

The perforation hole 310b may be formed by using a perforator so that the side of the primary pouring concrete pile 130 may be cut. The size of the reinforcing bar assembly inserted into the perforation hole 310a And the perforation hole 310b is formed to have a diameter larger than that of the conventional pile 110 so that the pile 110 can be inserted.

The PHC pile 110 may be a cylindrical PHC pile having a water expansion reaction force bracket 150 accommodating the water expansion index material 120 fixedly installed on the outer circumferential surface thereof, .

The pile 110 having the water expansion index member 120 is inserted together with the pile hole 310b for the pile 110 to form the water expansion index member 120 at the center of the pile 110, Is set naturally. This will be the same as the casing construction method for maintaining the pore wall.

Since the construction is performed in a state where the installation positions of the perforation holes 310a and 310b are determined so as to form the overlapping portion A in advance, the water expansion index member 120 is placed in the overlapped portion A, It is possible to carry out the construction by merely inserting the perforation hole 310b together with the perforation hole 310b.

Subsequently, the secondary laying concrete (C2) is filled in the foundation pile (110) to complete the construction of the main heating type underground wall body (100) of the present invention and the main heat type underground wall body (100) It is possible to prevent the ground water from leaking to the excavated ground while preventing the ground from being collapsed toward the excavated ground, while allowing one side of the ground to be excavated and exposed to the side wall by the ground excavation.

Next, a method of constructing a submerged wall structure using the water expansion index material 120 and the water expansion reaction force fitting 150 according to FIG. 3B is a case of using an underground tube 160.

3B, a perforation hole 310a is formed in the ground where the main heating type ground wall is installed.

Also, the perforation hole 310a for the primary site-cast concrete pile 130 is first spaced apart in the longitudinal direction by using an excavator (not shown) as the perforation hole 310a.

At this time, the spacing distance may be smaller than the diameter of the perforation hole 310a, and the diameter and depth of the perforation hole 310a may be determined according to the main-heating type underground wall member 100. [

Subsequently, the underground tube 160 is inserted into the perforation hole 310a for the primary site-cast concrete pile 130, and the primary site-cast concrete C1 is charged to fill the inside of the underground tube 160 At this time, the steel tube assembly is inserted into the inner tube 160 before being embedded. This completes the construction of the primary site-laid concrete pile 130 and is the same as the construction method of FIG. 3A.

Next, the perforation hole 310b for the existing pile 110 is formed so that the overlapped portion A can be formed before the primary site-laid concrete C1 of the primary site-laid concrete pile 130 is completely cured. In this process, the underground tube 160 is also laterally cut.

Also, the perforation hole 310b may be formed by using a perforator so that the side of the primary pouring concrete pile 130 is cut, and the size of the reinforcing bar assembly inserted into the perforation hole 310a And shape.

In this case, the pile 110 of the present invention is provided. As described above, the PHC file, the steel pipe file, or the like can be used, and the water expansive index material 120 is fixedly installed on the outer circumferential surface. It can be seen that the reaction force fitting 150 is used.

The water expansition index material 120 received in the water expansion-reaction force fitting 150 is naturally set at the center of the overlapping portion A (horizontally disposed horizontally with reference to the plan view as viewed from above).

Next, when the secondary cast concrete (C2) is charged into the existing pile (110) and cured, the construction of the main thermal type underground wall (100) of the present invention is completed and the main thermal type underground wall (100) Therefore, it is possible to prevent the ground water from leaking to the excavated ground while preventing the ground from collapsing toward the excavated ground.

When the groundwater or the like comes into contact with the water expansion index material 120, the volume of the water is expanded in the overlapping portion A between the primary pile 130 and the pile 110 to improve the order performance of the pile A .

Next, the method of constructing the main heating type sub-wall structure using the water expansion index material and the water expansion reaction force fitting according to FIG. 3C is performed by the same method as that of FIG. 3A except that the perforation hole 310b is first constructed, The pile 110 having the water swell index material 120 is inserted and installed.

3A and 3B, the pile 110 is inserted into the perforation hole 310b of the pile 110 while the pile 110 of the pile 110 is installed by the pile expansion / While the pile 110 having the water expansion index material 120 is installed with a time lag by the expansion / reaction force fitting 150.

Also, a perforation hole 310a is formed in the ground where the main heating type ground wall is installed, and the primary site-laid concrete C1 is filled in the perforation hole 310a for the primary site-laid concrete pile 130.

At this time, the reinforcing steel assembly is inserted into the perforation hole 310a to be buried in advance. This completes the construction of the primary site-laid concrete pile 130.

Next, only the perforation hole 310b for the existing pile 110 is formed so that the superposition portion A can be formed before the primary site-laid concrete C1 of the primary site-laid concrete pile 130 is completely cured .

The perforation hole 310b may be formed by using a perforator so that the side of the primary pouring concrete pile 130 may be cut. The size of the reinforcing bar assembly inserted into the perforation hole 310a The shape must be determined.

In addition, the present invention also includes a pile 110 of the present invention. The pile 110 may be, for example, a PHC pile having a cylindrical shape, and a water expansion reaction force bracket 150 containing a water- 110).

Next, after the piercing hole 310 for the pile 110 is formed, the pile 110 having the water expansion index material 120 is inserted into the pile 110 and the water expansion index material 120 So that it can be set naturally.

Subsequently, the secondary laying concrete (C2) is filled in the foundation pile (110) to complete the construction of the main heating type underground wall body (100) of the present invention and the main heat type underground wall body (100) It is possible to prevent the ground water from leaking to the excavated ground while preventing the ground from being collapsed toward the excavated ground, while allowing one side of the ground to be excavated and exposed to the side wall by the ground excavation.

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 ground wall 110: Established pile
120: water expansion index material 130: primary spot-pile concrete pile
150: water expansion reaction force fitting 160: underground tube
310a.310b: Perforation hole
C1: Primary site cast concrete
C2: Second-place on-site concrete

Claims (8)

(a) the primary site-laid concrete pile holes 310a are formed apart from each other and the primary site-laid concrete (C1) is laid in the primary site-laid concrete pile hole (310a) Forming a pile (130);
(b) forming a perforation hole (310b) for secondary pouring concrete piles between the perforation holes (310a) for primary pouring concrete piles so that the overlapping portion (A) can be formed;
(c) a pre-installed pile (110) inserted into the perforation hole (310b) for the secondary site-cast concrete pile, wherein an expansion index material (120) is fixed to the pre- Setting the superimposed part (A) together with the existing pile (110) while the expansion index member (120) is inserted into the perforation hole for the secondary site-cast concrete pile; And
(d) placing a secondary site-laid concrete (C2) on a hollow portion of the foundation pile (110), thereby further securing an order performance to the superposition portion while expanding the water expansion index material,
(B) placing the underground tube (160) at the side of the perforation hole for the primary site-cast concrete pile in the step (a) so that the primary site-laid concrete is placed inside the underground tube (160) The water tube 160 is formed by cutting the underground tube 160 while forming the perforation hole 310b for the secondary pierced concrete pile in the step A Study on the Construction Method of Underground Walls Using Exponential Material and Expansive Reaction Brackets. The method according to claim 1,
The water expansition index material 120 of the step (c) is set in the overlapping portion together with the pre-formed piles 110 so as to be fitted in the water expansion reaction force bracket 150 previously fixed to the pre- The flange opening S2 is further formed in the water expansion bulb 150 so that the water expansion index member 120 is expanded from the inside of the flange opening 150. [ A method of constructing a submerged wall structure using a water expansion index material and a water expansion reaction force fitting to expand the volume toward the opening side. delete A submerged wall constructed by a submerged wall construction method using a water expansion index material and a water expansion reaction force bracket according to claim 1 or 2,
A first field cast concrete pile (310a) formed by separating the primary site-inserted concrete pile holes (310a) from each other and casting the primary site-laid concrete (C1) into the primary site-laid concrete pile hole (310a) 130);
A secondary site-pierced concrete piercing hole 310b is formed between the primary piercing piercing holes 310a so that the overlapping portion A can be formed, and the piercing hole for the secondary piercing concrete pile (310);
A water expansion index member 120 (not shown) set together with the foundation pile 110 in the overlapping portion A while being fixedly installed in the foundation pile 110 and inserting the foundation pile 110 in the perforation hole for the secondary site- ); And a secondary field cast concrete (C2) poured into the hollow portion of the foundation pile (110)
A method of constructing a self-heating type submerged wall structure using a water expansion index material and a water expansion reaction force bracket so that the water expansion index material (120) Walls. (a) the primary site-laid concrete pile holes 310a are formed apart from each other and the primary site-laid concrete (C1) is laid in the primary site-laid concrete pile hole (310a) Forming a pile (130);
(b) a perforation hole 310b for a secondary site-casting concrete pile is formed between the perforation holes 310a for the primary site-casting concrete pile so that the overlapped portion A can be formed, The pile of the present invention includes a pile 110 inserted into a pile hole 310b of a concrete pile so that the pile 100 is fixed to the pile 100 in advance, Placing the pile (110) in the overlapping portion (A) together with the existing pile (110) while inserting the pile (110) into the perforation hole for the secondary pile of cast concrete; And
(c) casting the secondary site-cast concrete (C2) into the hollow portion of the foundation pile (110)
The underwater tube 160 is disposed on the inner side of the perforation hole for the primary site-dumped concrete pile in step (a) so that the underwater tube 160 (B), so that the underground tube 160 is cut while forming the perforation hole 310b for the second-stage on-lay concrete pile. In the step (b), the underground tube 160 is cut, A method of constructing a self-contained underground wall structure using a water expansion index material and a water expansion reaction force fitting to set a water expansion index material (120) in an underground tube (160). 6. The method of claim 5,
In the step (b), the water expansition index material 120 is set on the overlapped portion together with the prepared pile 110 so as to be fitted in the water expansion reaction force bracket 150 previously fixed to the preformed pile 110, Expansion capability is further secured to the overlapping portion by expanding from the inside of the expansion reaction force metal fitting 150. A flange opening S2 is further formed in the water expansion reaction force fitting 150 so that the expansion coefficient of the water expansion index material 120 A method of constructing a main heating type underwater wall by using a water expansion index material and a water expansion reaction force fitting to expand the volume toward the flange opening. delete A submerged wall constructed by a submerged wall construction method using a water expansion index material and a water expansion reaction force bracket according to claim 5 or 6,
A first field cast concrete pile (310a) formed by separating the primary site-inserted concrete pile holes (310a) from each other and casting the primary site-laid concrete (C1) into the primary site-laid concrete pile hole (310a) 130);
A preliminary pile 110 inserted into a perforation hole 310b for a second-stage on-site concrete pile formed between the perforation holes 310a for a first-time on-site concrete pile so that the overlapped portion A can be formed;
The pile 110 is fixed in advance to the pile 110 and inserted into the perforation hole of the secondary pile 101. The pile 110 is placed in the pile 110, 120); And a secondary field cast concrete (C2) placed in the hollow portion of the foundation pile (110)
A method of constructing a self-heating type submerged wall structure using a water expansion index material and a water expansion reaction force bracket so that the water expansion index material (120) Walls.

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