KR20110034255A - The retaining wall using circular phc pile with catch pit which is had and construction method using thereby - Google Patents

Abstract

PURPOSE: A retaining wall with a catch basin using a circular PHC pile and a construction method thereof are provided to improve the exterior of the retaining wall by using a PC panel as a finishing wall. CONSTITUTION: A retaining wall(1) with a catch basin using a circular PHC pile comprises multiple PHC piles(2), steel bands(21), plates(22), stoppers(3), finishing walls(4), catch basins(6), fixing bolts(5), and a concrete cap(7). The PHC piles are installed on the ground(100) to be separated from each other. The steel bands are formed in the longitudinal direction of the PHC piles to be separated from each other and cover the PHC piles. The plates are separated from one side of the PHC piles. The stoppers connect the steel bands and the plates. The finishing walls are inserted between the PHC piles and the stoppers. The catch basins are integrally formed in the inner center of the finishing walls. The fixing bolts fix the finishing walls to the plates. The concrete cap is installed on the top of the PHC piles and finishes the retaining wall.

Description

Retaining wall using circular PHC pile with catch pit which is had and construction method using

The present invention relates to a retaining wall having a catchment using a circular PHC pile and a construction method thereof, and more particularly, a plurality of circular PHC piles spaced a predetermined distance from the ground along an installation position of the retaining wall; A plurality of circular band-shaped steel bands having a predetermined width formed to be spaced apart a predetermined distance in the longitudinal direction of the PHC pile to surround the PHC pile; Plate-shaped bar-shaped plate spaced to one side of the PHC pile is formed parallel to the longitudinal direction of the outer surface of the PHC pile; A plurality of plate-shaped stoppers having a predetermined length for connecting and fixing the steel band and the plate formed on the PHC pile; At least one finishing wall fitted between stoppers of each adjacent PHC stake; A catchment port formed vertically integrally with the inner wall of the finishing wall; Fixing bolt for fixing the finishing wall to the plate through the plate of the stopper is connected and fixed portion; It relates to a retaining wall provided with a water collecting port using a circular PHC pile including a cap concrete for finishing the upper portion of the PHC pile and its construction method.

In general, a retaining wall refers to a wall made so that the slopes formed by cutting the soil or stacking the soil do not collapse under the pressure of the soil. That is, it refers to a structure made for the purpose of preventing the collapse of the soil behind, and it is a structure that maintains stability with the retaining force of the retaining wall against the soil pressure behind.

This type of retaining wall is made of plain concrete, and it is made of gravity retaining wall and reinforced concrete, which is stabilized by its own weight. Rear wall retaining wall reinforced with subwalls and front wall retaining wall reinforced with subwalls at regular intervals in front of the cantilever retaining wall.

Looking at the construction procedure of the cantilever retaining wall most widely used in the conventional retaining wall described above, the trench and the foundation surface is arranged in the place to install the retaining wall. When the foundation surface is arranged, the foundation concrete is poured on the foundation surface. At this time, if the foundation concrete lacks bearing strength, reinforcement by installing more ground improvement or pile. After the foundation concrete is poured, reinforce the floor reinforcement and pour the concrete. The reinforcing wall reinforcement is placed on the poured concrete and the concrete is poured to complete the cantilever retaining wall.

As can be seen in the case of the cantilever retaining wall, the installation method of the retaining wall is completed through a complicated process consisting of assembling the reinforcing bar, installing the formwork and scaffolding, and placing the concrete. Accordingly, the construction period for installing the retaining wall is long, there is a problem that the quality varies depending on the increase in the construction cost and the skill of the site workers.

In order to solve this problem, looking at the registered Patent No. 10-473375, it comprises a PHC pile having a hollow portion in the center and the cap concrete is installed on the top of the PHC pile. The retaining wall installed in this way allows the effective use of land and has the advantage of shortening the air.

In addition, it is possible to look at the foundation mud structure constructed with a plurality of H beams and a plurality of earth walls so as to stabilize the ground such as the retaining wall and prevent the inflow of groundwater. In order to solve the problem of the general basic earthquake structure, look at the registered Patent No. 10-583939, attached to each of the continuous "T" type connecting pieces to a plurality of H-beams, buried in the edge of the trench construction, " After embedding and constructing the first earth wall between the T "type connecting piece and the" T "type connecting piece, and stacking and constructing a plurality of second earth walls on the upper part of the first earth wall, and completing the first and second earth wall installation. Excavation work is carried out to install the foundation mud structure. Accordingly, the work can be unified to increase the work efficiency. However, Patent No. 10-583939 has the purpose, effect, and structure to prevent the inflow of rainwater during excavation of the lower layer, and the problem of failing to secure the economy and function as a retaining wall due to the increase in water pressure due to the rainwater on the back surface. there was.

Accordingly, the present invention was created to solve the above problems, the object of the present invention is as follows.

First, an object of the present invention is to provide a self-supporting retaining wall by embedding a plurality of circular PHC pile in the ground spaced a predetermined distance apart.

Second, the present invention is to use the PC panel as a finishing wall, the mortar by finishing the connection of the connection of the finishing wall to form a beautiful appearance of the retaining wall.

Third, an object of the present invention is to provide a convenience of retaining wall work by installing a stopper fixed to the finishing wall PHC pile stacked between PHC piles at the construction site according to the height of the retaining wall.

Fourth, an object of the present invention is to form a catchment in the vertical direction along the inner side of the laminated finishing wall of the retaining wall to exclude the excellent surface of the finishing wall so that water pressure does not occur in the retaining wall.

As described above, technical means for achieving the object of the present invention is as follows.

A plurality of circular PHC piles spaced a predetermined distance from the ground along the installation position of the retaining wall; A plurality of circular band-shaped steel bands having a predetermined width formed to be spaced apart a predetermined distance in the longitudinal direction of the PHC pile to surround the PHC pile; Plate-shaped bar-shaped plate spaced to one side of the PHC pile is formed parallel to the longitudinal direction of the outer surface of the PHC pile; A plurality of plate-shaped stoppers having a predetermined length for connecting and fixing the steel band and the plate formed on the PHC pile; At least one finishing wall fitted between stoppers of each adjacent PHC stake; A catchment port formed vertically integrally with the inner wall of the finishing wall; Fixing bolt for fixing the finishing wall to the plate through the plate of the stopper is connected and fixed portion; Cap concrete that covers the upper PHC pile is characterized in that it is included.

The stopper is further characterized in that it is further provided with a plate-shaped auxiliary plate parallel to the plate at right angles on both sides.

When two or more finishing walls are stacked, each of the stacked finishing walls has an uneven surface formed on the top and bottom thereof, and a water-expandable index member 9 is further provided between the uneven surfaces formed on each finishing wall. It features.

Finishing wall is characterized in that any one of PC panels, high density polyethylene, aluminum and glass fiber reinforced plastics.

Finishing wall is characterized in that it is further provided with a reinforcing plate surrounding both ends.

When the finishing wall is a PC panel, the thickness of the finishing wall is characterized in that the central portion is formed relatively thicker than the thickness of both ends of the finishing wall is fitted.

Mortar layer for finishing the space formed vertically between each finishing wall is characterized in that it is further provided.

The catchment is formed in the shape of a "U" pipe of a predetermined length, a plurality of catching holes are formed on the bottom surface of the catchment, the end openings of both side walls of the catchment are formed relatively wider than the bottom surface, and the ends of the both side walls formed with the opening It is characterized in that it is formed integrally with the finishing wall.

The catchment is characterized in that it is an environmentally friendly material of any one of high density polyethylene, aluminum and glass fiber reinforced plastics.

The catchment is characterized in that the non-woven fabric is further provided on the inner surface or the outer surface of the water collecting hole is formed.

Retaining wall is characterized in that the water expansion index material is further provided vertically along each PHC pile and both side walls of the adjacent catchment.

The water expansion index material is characterized in that the mixture of bentonite and rubber index.

The retaining wall is characterized in that the sand layer is further provided on the outside of the bottom surface of the catchment.

The lowermost finishing wall laminated on the retaining wall is characterized in that it is further provided with at least one drain hole passing through the lower end in communication with the catchment.

Burying a plurality of circular PHC piles formed with a plurality of circular band-shaped steel bands integrally formed to be spaced apart by a predetermined distance in a longitudinal direction of the PHC pile along the ground to form the retaining wall integrally with a predetermined distance; Excavating one surface of which an outer surface of the retaining wall is formed on both sides of the embedded PHC pile; Fixing and installing a plurality of plate-shaped stoppers having a plate-shaped bar-shaped plate formed on one side is parallel to the longitudinal direction of the outer surface of the PHC pile and a predetermined length for connecting the plate and the steel band to each other. step; Each stopper is formed in a predetermined length of "U" conduit, a plurality of collecting holes are formed on the bottom surface of the "U" conduit, and the openings on both sides of the wall of the "U" conduit are relatively wider than the floor surface. Forming, the non-woven fabric is further provided on the inner surface or the outer surface of the bottom of the water collecting hole, and the step of installing the plate-shaped finishing wall integrally formed with a water collecting port coated with water expansion index material along the outer edges of both sides adjacent to the bottom surface ; Fastening both ends of the finishing wall fitted with the stopper with fixing bolts; Forming a sand layer by burying sand in a space formed between an outer side of a catchment wall of the finishing wall and an excavation surface; And closing the upper portion of the PHC pile of the retaining wall on which the catchment is installed, with cap concrete.

In the fitting installation step, if the thickness of the center of the finishing wall is thicker than both ends of the finishing wall to be fitted to the stopper, after the finishing step, a mortar layer of high-strength concrete is placed in a predetermined space formed vertically between one surface of the stopper and each finishing wall. Forming and finishing the outer surface of the retaining wall is characterized in that it further comprises.

In the PHC pile installation step, the method of embedding the PHC pile in the ground is characterized in that the purchase method.

Between the fixing bolt fastening step and the sand layer forming step, the step of re-excavating one surface of the PHC pile installed the finishing wall; To install a plate-shaped bar plate formed on one side is parallel to the longitudinal direction of the outer surface of the PHC pile, and re-installed a plurality of plate-shaped stopper having a predetermined length between the plate and the steel band step; Loosening the fixed bolts fastened in the fixing bolt fastening step and moving the finishing wall to the excavated floor; And re-fastening the finished wall moved to the excavated bottom surface with a fixed bolt; and including a re-excavation step, and the re-excavation step is performed at least once according to the height of the retaining wall. .

When two or more finishing walls forming the retaining wall are stacked in the re-excavation step, an uneven surface is formed on the top and bottom of the laminated finishing wall, and the water-expandable index member is further applied to the uneven surfaces. .

Between the stopper fixing installation step and the closing wall fitting installation step, further comprising the step of fixing the plate-shaped auxiliary plate parallel to the plate at a right angle on both sides of the stopper.

Fixing a plate-shaped auxiliary guide piece formed at right angles to one surface of an upper end portion of each plate between the stopper fixing installation step and the closing wall fitting installation step; And fixing a guide bar having a shape of a cross section on the upper side of each of the auxiliary guide pieces, wherein the guide bar is any one of “d” string steel, “L” string steel, and “H” string steel.

After the fixing bolt fastening step or the sand layer forming step, the auxiliary guide piece fixed installation step and the guide bar is characterized in that it further comprises the step of removing the guide guide and guide bar installed in the fixed installation step.

As mentioned above, the effect of this invention is as follows.

First, the present invention has the effect of providing a self-supporting retaining wall by embedding a plurality of circular PHC pile in the ground spaced a predetermined distance apart.

Secondly, the present invention uses a PC panel as a finishing wall, and by finishing the connection of the finishing wall with a mortar, the appearance of the retaining wall has a beautiful effect.

Third, the present invention by installing the standardized plate and the stopper is installed on the steel band of the PHC pile without additional work at the construction site, the finishing wall, which is the outer wall of the retaining wall installed between the PHC pile can be easily installed There is an effect of convenience of work and shortening of air.

Fourth, the present invention is provided with a water collecting port formed vertically along the inner side of the laminated wall of the retaining wall, thereby reducing the water pressure on the back surface of the retaining wall and excludes the water pressure.

Fifth, the present invention has the effect of preventing the overload due to the temporarily increased water pressure by storing the water in the catchment so that the water drain is drained only a certain amount and the rest of the water is slowly drained.

Sixth, the present invention by installing one discharge port communicating with the water collecting port on the bottom of the laminated finishing wall, the beauty of the retaining wall has a beautiful effect.

Seventh, the present invention by wrapping the reinforcing plate on both side ends of the finishing wall to form the outer wall of the retaining wall, the effect of preventing the damage of the finishing wall and easy to install on the stopper has excellent workability.

Eighth, the present invention has the effect of providing an environmentally friendly retaining wall by making the material of the catchment to the FRP.

Ninth, the present invention seals the PHC pile adjacent to the catchment with the water expansion index material, by forming a non-woven fabric inside or outside the catchment hole formed on the bottom surface of the catchment, to prevent water leakage to induce water to flow into the catch and It is effective to prevent entry of foreign substances such as soil and sand contained in water.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

< Example  Configuration according to

1 is an exploded perspective view showing a retaining wall provided with a collecting port using a circular PHC pile according to the present invention, Figure 2 is a combined perspective view showing a retaining wall provided with a collecting port using a circular PHC pile according to the present invention. As shown in FIG. 1 and FIG. 2, the retaining wall 1 according to the present invention is provided with a plurality of PHC piles 2 spaced apart from the ground 100 along a mounting position of the retaining wall 1 by a predetermined distance. At this time, the PHC pile 2 is preferably formed of a column-shaped pillar is embedded in the underground 100 by the embedding method. In this case, the embedding method may be a heavy-duty indentation method, SIP method, SDP method, PRD method and the like. In addition, the PHC pile 2 is further provided with a plurality of circular band-shaped steel band 21 of a predetermined width formed to be spaced apart a predetermined distance in the longitudinal direction of the PHC pile (2) surrounding the PHC pile (2), which is, In order to fix the plate 22 to be described below with a stopper, the steel band 21 is preferably made of metal. Accordingly, the plate 22 can be fixed to the steel band 21 using the stopper 3 at the construction site. At this time, the fixing method of the steel band 21 and the stopper may use a conventional welding method.

The plate 22 is formed in the form of a plate-shaped bar. At this time, the plate 22 is spaced to one side of the PHC pile 2 is formed in one side parallel to the longitudinal direction of the outer surface of the PHC pile (2). This is to install the finishing wall 4 to be described below between the plate 22 and the PHC pile (2). Here, the plate 22 is preferably formed at the time of manufacturing the through-hole in which the fixing bolt 5 for fixing the finishing wall 4 to be described below is installed.

The stopper 3 is formed in a plate shape having a predetermined length. At this time, the stopper 3 is fixedly connected to each other between the steel band 21 and the plate 22 formed in the PHC pile (2). As described above, because the stopper 3 is provided in the steel band 21, a plurality of stoppers 3 are formed. At this time, in order to fix the stopper 3 to the steel band 21, the upper and lower lengths of the stopper 3 are preferably the same as the width of the steel band 21. In addition, the stopper 3 is coupled to the plate 22 at a right angle. In other words, the section in which the stopper 3 and the plate 22 are coupled is fixed in a "T" shape. This is for the purpose of firmly fixing by inserting the finishing wall 4 between each stopper (3). .

In addition, the stopper 3 may further include an auxiliary plate 23 having a plate shape parallel to the plate 22 at right angles to both surfaces thereof. In other words, since the PHC pile 2 is cylindrical, the auxiliary plate 23 may not be firmly coupled to the finishing wall 4 by the clearance of the outer circumference of the PHC pile 2 when the plate 22 is installed on the finishing wall 4. To prevent this. At this time, the length of the auxiliary plate 23 is equal to the length of the stopper 3 or the length of the plate 22. The cross section in which the plate 22 formed on the stopper 3 and the auxiliary plate 23 are formed is rigidly installed in the shape of " interval " to be formed between the plate 22 and the auxiliary plate 23 and between each stopper. It is to install the finishing wall (4) in the space. Here, the auxiliary plate 23 is shown well in FIG.

At least one finishing wall 4 is provided between each stopper 3 described above. At this time, the finishing wall (4) is fitted between the stopper (3) of each adjacent PHC pile (2). In addition, it is preferable to integrally form the water collecting port 6 which is vertically formed to be integrally formed at the center of the inner surface of the finishing wall 4.

Along with this, the finishing wall 4 may use a building exterior material such as a panel having various materials, but it is preferable to use a PC panel in consideration of manufacturing convenience, manufacturing cost, and retaining wall. In addition, in consideration of the aesthetics of the retaining wall (1) of the high-density polyethylene, aluminum and glass fiber reinforced plastics, which are eco-friendly materials, to prevent rust from considering the convenience of installation, ease of manufacture, and robustness after installation, Either one can be used.

The above-described finishing wall 4 may be further provided with a reinforcing plate 41 surrounding both ends. This is to facilitate the installation of the finishing wall 4 between the stoppers and at the same time to prevent both ends of the finishing wall 4 from being sheared.

The catching port 6 is formed in a "U" conduit shape having a predetermined length, and a plurality of collecting holes 611 are formed in the bottom surface 61 of the "U" conduit form, and both side walls 62 of the "U" conduit form. The end opening 63 is formed relatively wider than the bottom surface 61, and the ends of both side walls 62 having the opening 63 are preferably formed integrally with the finishing wall 4. At this time, the catch 6 is preferably used any one of high-density polyethylene, aluminum and glass fiber reinforced plastics that are environmentally friendly materials. In addition, in the case of the same material as the above-described finishing wall (4) it is possible to integrally injection molding. In addition, the catch port 6 enters the inside of the catch port 6 together with water to prevent the catch hole 611 from being blocked, so that the nonwoven fabric 64 is further formed on the inner surface or the outer surface of the bottom surface 61 on which the catch hole 63 is formed. It is preferable to provide.

The fixing bolt 5 penetrates the plate 22 of the portion where the stopper 3 is connected and fixes the finishing wall 4 to the plate 3. In this case, when the auxiliary plate 23 is formed on the stopper 3, fixing the finishing wall 4 to the fixing bolt 5 may be omitted.

Cap concrete 7 is installed on the top of the PHC pile 2 to seal the hollow formed in the PHC pile (2) to finish the retaining wall (1). At this time, the cap concrete 7 is for securing the transverse resistance of the retaining wall 1 to secure the retaining wall. Such, the cap concrete (7) can be installed directly on the PHC pile (2) by using a method of manufacturing from the outside to install from the top, or using a formwork. The above-mentioned cap concrete 7 may reinforce the reinforcing bar or the like inside the cap concrete 7 to increase durability to prevent breakage.

The water-expandable index 9 is formed in the retaining wall 1 vertically along each side wall 64 of each PHC pile 2 and the adjacent catchment 6 so that the PHC pile 2 and the catchment 6 Seal between both side walls (64). At this time, the water-expandable index member 9 is formed by coating in advance with the water collecting port 6 along the end portions of both side walls 62 adjacent to the bottom surface 61 of the water collecting hole 6. This is because the height of the retaining wall and the working space are narrow in the working place, so it is difficult to work directly in the field. Accordingly, the water drained from the excavation surface 110 is collected into the water collecting hole 611 of the water collecting port 6 without being discharged to the outside of the finishing wall 4 of the retaining wall 1. This has the effect of preventing the aesthetics of the retaining wall 1 from being damaged because water is not drained from the outer surface of the retaining wall 1. The water-expandable index 9 is used by mixing 50 parts by weight to 90 parts by weight of bentonite and 10 parts by weight to 50 parts by weight of the rubber index. At this time, the water-expandable index member (9) increases the volume by 15 times when connected to water, thereby providing a waterproof and sealing function, thereby serving as the above-mentioned sealing role.

In the above water-expandable index 9, when two or more finishing walls 4 are laminated, each of the stacked finishing walls 4 has an uneven surface 43 formed on the top and bottom thereof, and each finishing wall 4 It is preferable to use between the laminated concave-convex surface 43 formed in the), in order to prevent the discharge of water to the outside of the retaining wall (1).

The sand layer 10 is formed by embedding sand in the space between the bottom surface 62 of the water collecting port 6, that is, the excavation surface 110 and the bottom surface 62 of the water collecting hole 6. This is to smoothly collect water from the ground (100) to the catch (6). The sand layer 10 may also embed the sand layer 10 in the space formed by the PHC pile 2, the finishing wall 4, and the water collecting port 6 sealed by the water expansion index material 9.

Since the drain hole 42 affects the aesthetics of the retaining wall 1, one of the drain holes 42 is formed at the lower end of the finishing wall 4 formed at the lowermost end of the stacked finishing wall 4. The drain hole 42 is formed to communicate with the water collecting port 6 through the finishing wall (4).

When the finishing wall 4 is a PC panel, the thickness of the finishing wall 4 may be formed to have a relatively thick central portion than the thickness of both end portions of the finishing wall 4. This is to increase the durability of the finishing wall (4). At this time, it is preferable to mortar the mortar layer 8 using concrete in the space s vertically formed between the respective finishing walls 4 to enhance the aesthetics of the retaining wall 1.

The retaining wall 1 formed by the above can form a sentence of a predetermined form using a pattern formwork on the outer surface of the finishing wall 4 according to the surrounding environment.

< Example  Construction Method>

Figure 3 is a flow chart showing the construction method of the retaining wall is provided with a collecting port using a circular PHC pile according to the present invention, Figures 5 to 11 is a construction method of the retaining wall provided with a collecting port using a circular PHC pile according to the present invention It is a top view of the retaining wall shown along. Hereinafter, the construction method of the retaining wall provided with the collecting port 6 using the circular PHC pile according to the present invention according to the flow chart shown in FIG.

As shown in Figures 3 and 5, the PHC pile buried step (S100) is formed a plurality of PHC piles spaced apart a predetermined distance in the longitudinal direction of the PHC pile 2 along the ground (100) to form the retaining wall (1). (2) A plurality of circular PHC piles (2) formed integrally with a circular band-shaped steel band 21 of a predetermined width is embedded to be spaced a predetermined distance apart. At this time, the method of embedding the PHC pile (2) in the ground (100) is preferably used a buried method, here, the buried method can be used in the middle digging method, SIP method, SDP method, PRD method and the like.

As shown in Figure 3 and Figure 6, the PHC pile one surface excavation step (S110) excavates one surface is formed the outer surface of the retaining wall (1) of both sides of the embedded PHC pile (2). As such, since the excavation is performed in the state in which the PHC pile 2 is embedded, the stability of the work can be ensured. At this time, the excavation surface 110 is preferably to form an excavation surface 110 on the basis of the center of the longitudinal direction of the PHC pile (2). This is for installation of the water collecting port 6 to be described later.

3 and 7, the stopper welding step (S120) is spaced apart to one side of the excavated PHC pile (2) one side plate-shaped bar-shaped plate formed in parallel with the longitudinal direction of the outer surface of the PHC pile (2) A plurality of plate-shaped stoppers 3 having a predetermined length for connecting and fixing the 22 and the plate 22 and the steel band 21 to each other are fixedly installed. The stopper 3 forms the same number of steel bands as the retaining wall 1. At this time, the coupling end surface of the plate 22 and the stopper 3 is fixedly coupled to the stopper 3 to be perpendicular to one surface of the plate 22 so as to have a "T" shape. This fixed coupling method may use a conventional welding.

3 and 8, the installation step (S130) of fitting the finishing wall is formed in the form of the "U" pipeline of a predetermined length between each stopper (3), the bottom surface of the "U" pipeline ( A plurality of catching holes 611 are formed at 61, and end openings 63 of both end walls 62 having a “U” conduit form are formed relatively wider than the bottom surface 61, and a collecting hole 63 is formed. A nonwoven fabric 64 is further provided on the inner surface or the outer surface of the bottom surface 61, and the water collecting port 6 coated with the water-expandable index material 9 is integrated along the outer ends of both sides 62 adjacent to the bottom surface 61. Insert the plate-shaped finish wall (4) formed by fitting. At this time, the finishing wall (4) is formed on both sides of the reinforcing plate 41 to facilitate the installation of the finishing wall (4) between the stopper (3). The reinforcing plate 41 of the finishing wall 4 prevents shear failure of the finishing wall 4 fixed to the stopper 3 by earth pressure, and reduces the frictional force when installing the finishing wall 4 to close the finishing wall. (4) facilitates installation.

As shown in Figure 3 and 9, the fixing bolt fastening step (S140) is fastened to both ends of the finishing wall (4) is fitted to the stopper (3) with a fixing bolt (5). At this time, it is preferable to form a hole in which the fixing bolt 5 is installed in the stopper 3 and the finishing wall 4 in advance when the stopper 3 and the finishing wall 4 are manufactured. Thereby, the site worker can easily fix the finishing wall 4 to the stopper 3 using the fixing bolt 5.

Figure 4 is a flow chart illustrating a re-excavation step of the construction method of the retaining wall provided with a catchment using a circular PHC pile according to the present invention. As described above, the re-excavation step (S200) is formed between the fixing bolt fastening step (S140) and the outer surface finishing step (S150) when the height of the retaining wall (1) is higher than the height of the finishing wall (4).

The re-excavation step S210 of one side of the PHC pile 2 re-excavates one surface of the PHC pile 2 on which the finishing wall 4 is installed. Thus, the excavation surface 110 formed by re-excavation is preferably formed to extend with the above-described PHC pile 2 surface excavation step (S110).

 Plate 22 and the stopper (3) re-installation step (S220) is spaced apart to one side of the excavated PHC pile (2) plate-shaped bar-shaped plate formed on one side parallel to the longitudinal direction of the outer surface of the PHC pile (2) 22), and a plurality of plate-shaped stoppers having a predetermined length between the plate 22 and the steel band 21 are re-installed. At this time, the stopper 3 is preferably formed at the same interval as the stopper 3 formed in the previous stopper 3 fixed installation step (S120).

Finishing wall moving step (S230) is to unfasten the fixing bolt 5 fastened in the fixing bolt fastening step (S150) and to move the finishing wall 4 to the excavation surface (110). In addition, it will be apparent that the other finishing wall 4 is fitted in place of the moved finishing wall 4.

Fixing bolt refastening step (S240) is to refasten the finishing wall (4) moved to the excavation surface 110 to the fixing bolt (5). At this time, in the case of the lowermost finishing wall 4 in which the finishing wall 4 is laminated, the fixing bolt 5 is permanently fixed.

The re-excavation step (S200) is performed at least once according to the height of the retaining wall (1). That is, as an example, if the height of the retaining wall 1 is three times or more with respect to the height of the finishing wall 4, the re-excavation step S200 is repeated twice, and if the height of the retaining wall 1 is five times or more, the re-excavation is performed. It is to repeat the step (S200) four times. At this time, when two or more finish walls forming the retaining wall are stacked in the re-excavation step (S200), the uneven surface 43 is formed on the upper and lower portions of the stacked finish wall 4, and the uneven surface The water expansion index material 9 can be further apply | coated to 43).

3 and 10, in the sand layer forming step S150, sand is embedded in the excavation surface 110 formed on the outer side of the catchment 6 to form the sand layer 10. In particular, the formation of the sand layer 10 outside the catch port 6 is to prevent the earth pressure of the ground (100) increases when the components of the ground (100) is not easy to drain water due to the various components. That is, sand is embedded in the space between the excavation surface 110 and the bottom surface 62 of the water collecting port 6 to increase drainage performance. Here, the porous non-woven fabric 64 along the inner surface or the outer surface of the bottom surface 61 of the water collecting port 6 as described above in order to prevent the sand of the sand layer 10 to seal the water collecting hole 611 of the water collecting hole 6. Form the to prevent the foreign matter collecting hole 611 is sealed in the foreign matter. Along with this, the sand layer 10 may also have a space between the excavated PHC pile 2, the finishing wall 4, and both side walls 64 of the water collecting port 6.

Cap concrete finishing step (S160) will be described with reference to Figures 1 and 2 described above, cap concrete finishing step (S180) is the top of the PHC pile (2) of the retaining wall (1) of the water collecting port (6) installed cap concrete ( 7) to finish. This is for the PHC pile (2) to form a hollow in the longitudinal direction to finish this and to clean up the aesthetics of the upper end of the retaining wall (1). In addition, the cap concrete 7 is for securing the transverse resistance of the retaining wall 1 to secure the retaining wall.

As shown in Figures 3 and 11, the outer surface finishing step (S170) is shown in Figure 10 formed vertically between one surface of the stopper (3) formed with the fixing bolt 5 and each of the finishing wall (4) The outer surface of the retaining wall 1 is finished by forming a mortar layer 8 of high strength concrete in a predetermined space s. This is because the fixing bolt 5 and the stopper 3 are easily corroded when the stopper 3 on which the fixing bolt 5 is formed is exposed to the outside and damages the aesthetics of the retaining wall 1. To finish the aesthetics of the retaining wall (1).

12 is an exploded perspective view of the retaining wall showing the construction method of the retaining wall is provided with a catchment using a circular PHC pile according to the present invention. As shown in Figure 3 and Figure 12, the secondary plate fixed installation step (S121) between the stopper fixing installation step (S120) and the closing wall fitting installation step (S130), the plate 22 at right angles to both sides of the stopper (3). ) Can be fixed to the auxiliary plate 23 in the form of a plate parallel to. This is to prevent the space between the closing wall 4 and the plate 22 because the PHC pile 2 is circular when the closing wall is installed between the stoppers. In addition, to firmly fix the finishing wall (4). When the auxiliary plate 23 is installed, the installation of the fixing bolt 5 can be omitted.

3 and 12, between the stopper fixing installation step (S120) and the closing wall fitting installation step (S130), the auxiliary guide piece 31 fixed installation step (S122) and guide bar 32 fixed installation Step S123 may be further included. At this time, the auxiliary guide piece 31 fixed installation step (S122) is fixed to the plate-shaped auxiliary guide piece 31 formed at right angles on one surface of the upper end of each plate (22). In addition, the guide bar (32) fixed installation step (S123) of the guide bar 32, the shape of the cross-section on top of each of the auxiliary guide piece (31), "C" port steel, "L" section steel and "H" port steel 32 ) Can be fixed. This is to prevent the gap between the stopper 3 and the plate 22 formed on the PHC pile 2 to be changed so as to easily install the finishing wall 4.

As shown in FIG. 3, the auxiliary guide piece 31 and the guide bar 32 are installed in the auxiliary guide piece fixing step S122 and the guide bar fixing step S123 after the sand layer forming step S150. It is preferable to remove the guide piece 31 and the guide piece 32 in step S151. That is, it removes before completion of the retaining wall 1.

Although not shown in the drawings in the present invention, the present invention can form a predetermined pattern, such as a stone shape, on the outer surface of the finishing wall 4 of the retaining wall 1 using a pattern formwork according to the surrounding environment in which the retaining wall is installed.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive. 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 should be construed as being included within the scope of the present invention.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention, and therefore, the present invention is limited only to the matters described in the drawings. It should not be interpreted.

1 is an exploded perspective view showing a retaining wall provided with a catchment using a circular PHC pile according to the present invention.

Figure 2 is a perspective view showing a retaining wall provided with a catchment using a circular PHC pile according to the present invention.

Figure 3 is a flow chart illustrating a construction method of the retaining wall is provided with a catchment using a circular PHC pile according to the present invention.

Figure 4 is a flow chart illustrating a re-excavation step of the construction method of the retaining wall provided with a catchment using a circular PHC pile according to the present invention.

5 to 11 is a plan view of the retaining wall showing the construction method of the retaining wall is provided with a collecting port using a circular PHC pile according to the present invention.

12 is an exploded perspective view of a retaining wall showing a method of constructing a retaining wall provided with a catchment using a circular PHC pile according to the present invention;

<Explanation of symbols for the main parts of the drawings>

1: retaining wall 2: PHC pile 21: steel band 22: plate

23: Auxiliary plate 3: Stopper 31: Auxiliary guide part 31: Guide bar

4: Finished Wall 41: Reinforcement Plate 42: Drainage Hole 43: Uneven Surface

5: Fixing bolt 6: Water collecting hole 61: Bottom surface 611: Water collecting hole

62: side walls 63: opening 64: nonwoven fabric 7: cap concrete

8: Mortar bed 9: Water-expandable index material 10: Sand bed 100: Underground

110: excavation surface s: predetermined space

Claims (22)

A circular PHC pile 2 having a plurality of spaced apart from the predetermined distance in the ground 100 along the installation position of the retaining wall 1; A plurality of circular band-shaped steel bands 21 having a predetermined width formed to be spaced apart from each other by a predetermined distance in the longitudinal direction of the PHC pile 2 and surrounding the PHC pile 2; Plate-shaped bar-shaped plate 22 is spaced to one side of the PHC pile (2) formed in parallel with the longitudinal direction of the outer surface of the PHC pile (2); A plurality of plate-shaped stoppers (3) having a predetermined length for connecting and fixing the steel band (21) and the plate (22) formed on the PHC pile (2) to each other; At least one finishing wall (4) fitted between the stoppers (3) of each adjacent PHC pile (2); A water collecting port 6 integrally formed in the center of the inner surface of the finishing wall 4; A fixing bolt (5) for fixing the finishing wall (4) to the plate (3) through the plate (22) of the portion where the stopper (3) is connected and fixed; And Retaining wall provided with a catch port using a circular PHC pile, characterized in that the cap concrete (7) to close the PHC pile (2). The method of claim 1, The stopper (3) is a retaining wall provided with a catchment using a circular PHC pile, characterized in that further provided with a plate-like auxiliary plate 23 parallel to the plate 22 at right angles on both sides. The method of claim 1, When two or more finishing walls 4 are laminated, each of the stacked finishing walls 4 has an uneven surface 43 formed on upper and lower surfaces thereof, and the laminated walls 4 formed on the respective finishing walls 4. Retaining wall provided with a water collecting port using a circular PHC pile, characterized in that the water-expandable index member (9) is further provided between the uneven surface (43). The method of claim 1, The finishing wall (4) is a retaining wall provided with a water collecting port using a circular PHC pile, characterized in that any one of the PC panel, high density polyethylene, aluminum and glass fiber reinforced plastic. The method of claim 4, wherein Retaining wall provided with a water collecting port using a circular PHC pile, characterized in that the finishing wall (4) is further provided with a reinforcing plate (41) surrounding both ends. The method according to claim 4 or 5, When the finishing wall (4) is a PC panel, the thickness of the finishing wall (4) is a circular PHC pile, characterized in that the central portion is formed relatively thicker than the thickness of both ends of the fitting wall 4 is fitted Retaining wall with used catchment. The method of claim 6, Retaining wall provided with a catchment using a circular PHC pile, characterized in that the mortar layer (8) for closing the space (s) formed vertically between each finishing wall (4) is further provided. The method of claim 1, The catchment 6 is formed in the form of a "U" pipe of a predetermined length, A plurality of water collecting holes 611 are formed on the bottom surface 61 of the “U” pipeline. The end opening 63 of both end walls 62 of the “U” conduit form is relatively wider than the bottom surface 61, and Retaining wall provided with a water collecting port using a circular PHC pile, characterized in that the end of the side wall (62) in which the opening (63) is formed integrally with the finishing wall (4). The method of claim 1, Retaining wall is provided with a water collecting port using a circular PHC pile, characterized in that the environmentally friendly material of any one of the high-density polyethylene, aluminum and glass fiber reinforced plastic. The method of claim 8, Retaining wall is provided with a collecting port using a circular PHC pile, characterized in that the non-woven fabric (66) is further provided on the inner surface or the outer surface of the water collecting hole (6) the bottom surface (62) formed. The method of claim 1, The retaining wall 1 is a circular PHC pile further characterized in that the water expansion index member 9 is further provided vertically between the respective PHC piles 2 and both side walls 64 of the catchment 6 adjacent thereto. Retaining wall provided with a catchment. The method according to claim 3 or 11, wherein The water-expandable index member 9 is a retaining wall provided with a water collecting port using a circular PHC pile, characterized in that the mixture of bentonite and rubber index. The method of claim 1, The retaining wall (1) is a retaining wall is provided with a catchment using a circular PHC pile, characterized in that the sand layer 10 is further provided on the outside of the bottom surface (62) of the catch (6). The method of claim 1, The bottom end wall 4 laminated on the retaining wall 1 further includes at least one drain hole 42 penetrating a lower end portion communicating with the water collecting hole 6. Retaining wall. A plurality of circular band-shaped steel bands 21 having a predetermined width are formed to be spaced apart by a predetermined distance in the longitudinal direction of the PHC pile 2 along the ground 100 to form the retaining wall 1. Embedding the plurality of circular PHC piles 2 formed to be spaced a predetermined distance apart (S100); Excavating one surface of which the outer surface of the retaining wall 1 is formed among both sides of the embedded PHC pile 2 (S110); The plated bar-shaped plate 22 formed on one side is parallel to the longitudinal direction of the outer surface of the PHC pile 2 is spaced apart to one side of the excavated PHC pile 2, the plate 22 and the steel band A step (S120) of fixing the plurality of plate-shaped stoppers (3) having a predetermined length between them (21); Between each stopper (3) is formed in the form of a "U" conduit of a predetermined length, a plurality of collecting holes 611 is formed on the bottom surface 61 of the "U" conduit form, the "U" conduit The end openings 63 of both side walls 62 having a shape are formed relatively wider than the bottom surface 61, and a nonwoven fabric 64 is further formed on the inner surface or the outer surface of the bottom surface 61 on which the collecting hole 63 is formed. Provided; And inserting the plate-shaped finishing wall 4 formed integrally with the water collecting port 6 coated with the water-expandable index material 9 along the outer ends of both side surfaces 62 adjacent to the bottom surface 61 ( S130); Fastening both ends of the finishing wall (4) fitted to the stopper (3) with fixing bolts (S140); Forming a sand layer (10) by embedding sand in a space formed between an outer side of the water collecting port (6) of the finishing wall (4) and the excavation surface (110) (S150); And Finishing the upper portion of the PHC pile (2) of the retaining wall (1) with cap concrete (S160); Construction method of the retaining wall provided with a catchment using a circular PHC pile. The method of claim 15, In the fitting installation step (S130), if the thickness of the center of the finishing wall 4 is thicker than both ends of the finishing wall 4 is fitted to the stopper 3, after the finishing step (S160) the stopper (3) forming a mortar layer 8 of high-strength concrete in a predetermined space s formed vertically between one surface and each of the finishing walls 4 to finish the outer surface of the retaining wall 1 (S170). Construction method of the retaining wall is provided with a water collecting port using a circular PHC pile, characterized in that it further comprises a). The method of claim 15, The method of embedding the PHC pile in the ground in the PHC pile installation step (S100) is a buried method, the municipal public method of the retaining wall provided with a catchment using a circular PHC pile. The method of claim 15, Between the fixing bolt fastening step (S140) and the sand layer forming step (S150), Re-excavating one surface of the PHC pile 2 having the finishing wall 4 installed (S210); The plated bar-shaped plate 22 formed on one side is parallel to the longitudinal direction of the outer surface of the PHC pile 2 is spaced apart to one side of the excavated PHC pile 2, the plate 22 and the steel band Re-installing the plurality of plate-shaped stoppers (3) having predetermined lengths between (21) (S220); Loosening the fixing bolts 5 fastened in the fixing bolt fastening step S140 and moving the finishing wall 4 to the excavated bottom (S230); And Re-examination of the finishing wall (4) moved to the excavated bottom surface with the fixing bolt (S240); Re-excavation step (S200), including; and The re-excavation step (S200) is a construction method of the retaining wall provided with a catchment using a circular PHC pile, characterized in that is carried out at least once according to the height of the retaining wall (1). The method of claim 18, When two or more of the finishing walls 4 forming the retaining wall 1 are stacked in the re-excavation step S200, the uneven surface 43 is formed on the upper and lower portions of the stacked finishing walls 4. Forming, the construction method of the retaining wall provided with a water collecting port using a circular PHC pile, characterized in that the water-expandable index member (9) is further applied to the laminated concave-convex surface (43). The method of claim 15, Between the stopper fixing installation step (S120) and the closing wall fitting installation step (S130), fixing the plate-shaped auxiliary plate 23 in parallel with the plate 22 at right angles to both sides of the stopper (3) Construction method of the retaining wall is provided with a catch port using a circular PHC pile, characterized in that it further comprises a step (S131). The method of claim 15, Between the stopper fixing installation step (S120) and the closing wall fitting installation step (S130), fixing the plate-shaped auxiliary guide piece 31 formed at right angles to one surface of the upper end of each plate (22) S122); And It characterized in that it further comprises the step (S123) of fixing the guide bar 32 of any one of the shape of the cross-section "C", "L" steel and "H" steel on the upper side of each of the auxiliary guide piece Construction method of retaining wall equipped with catchment using circular PHC pile. The method of claim 21, Removing the auxiliary guide piece 31 and the guide member 32 installed in the auxiliary guide piece fixing installation step (S122) and the guide bar fixing installation step (S123) after the sand layer forming step (S150) (S151). Construction method of the retaining wall is provided with a catch port using a circular PHC pile, characterized in that it further comprises a).

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