KR100691890B1 - Method for constructing retaining wall having h-beam - Google Patents

Abstract

A construction method for a pile unit provided with an H-beam is provided to increase the cost required and to reduce the use of unnecessary filler by drilling holes continuously and installing H-beam piles to the holes. The construction method for a pile unit provided with an H-beam comprises the steps of: executing primary casing work by forming a primary hole(50) on the ground to the appointed depth using a drilling machine such as an auger, etc. and inserting a primary pipe member to the primary hole; executing secondary casing work by inserting a secondary member(52) to the inside of the primary pipe member and pulling out the primary pipe member; executing third casing work by forming a secondary hole(60) adjacently to the primary hole and inserting a third pipe member to the secondary hole; executing fourth casing work by inserting a fourth pipe member to the inside of the third pipe member and pulling out the third pipe member; forming a slit of the fourth pipe member and a slit of the secondary pipe member to connect with each other and inserting an H-beam pile(10) over the primary hole and the secondary hole; placing filler such as soil cement or concrete to the secondary pipe member and the fourth pipe member to make the whole H-beam pile buried under the filler; and pulling out the secondary pipe member and the fourth pipe member before the filler is cured.

Description

Construction Method of Thumb Pile Recessed Pile Unit and Construction Method of Rowing Soil Wall Using the Same {Method for Constructing Retaining Wall having H-Beam}

1 is a schematic plan view of a columnar wall structure constructed according to an embodiment of the present invention.

Figure 2a to 2f is a view showing each construction step of the method for constructing the pile unit by arranging the H-beam thumb pile by continuously drilling holes for the pile unit according to the present invention, respectively.

3 is a plan view showing a state in which both the second tube member and the fourth tube member are drawn and removed after filling the filler in both the first and second holes.

FIG. 4 is a schematic plan view showing an example of a state in which the columnar wall and the concrete underground wall constructed by using the pile unit having the configuration shown in FIG.

5 is a plan view showing a state in which both the second pipe member and the fourth pipe member are removed by filling only the first hole and then removed.

FIG. 6 is a schematic plan view of a columnar wall structure constructed using a pile unit having the configuration shown in FIG. 5. FIG.

7A to 7C show a sequential mudstone including a pile unit having a structure in which a portion of the H-beam thumb pile is embedded in the filler when the concrete basement wall is constructed in contact with the sequential mud wall shown in FIG. 6, respectively. This is a plan view showing an example of the use of the H beam thumb pile in the wall.

8 is a schematic plan view of a conventional general pile pile buried pile unit,

FIG. 9 is a schematic plan view of a main row soil wall using a conventional thumb pile embedded pile unit. FIG.

FIG. 10 is a plan view showing a form in which a concrete underground wall is synthesized in a main row wall using a conventional pile pile pile unit.

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

2, 3: pile unit

10: H beam thumb pile

The present invention relates to a method of constructing a pile pile buried pile unit and a method of constructing a heat-retaining wall using the same, and more specifically, when drilling a hole for a pile unit in the ground, two holes are partially overlapped and over the holes. By installing a larger thumb pile than before, the rigidity of the pile can be increased, and the construction method of the thumb pile buried pile unit, which is constructed so that the thumb pile can be used as a structural material of the underground wall when used in the heat-stacking wall, and the same It relates to a construction method of the column-style soil wall used.

FIG. 8 is a schematic plan view of a conventional general thumb pile embedded pile unit 120. As shown in the drawing, the thumb pile embedded pile unit 120 is drilled perpendicularly to the ground and then the thumb is formed in the drilled hole. The pile 101 is installed and filled with a filler 102 such as soil cement, concrete, or earth and sand around the thumb pile 101 located in the perforated hole. As the thumb pile 101, an H beam is mainly used.

Such a pile pile buried pile unit 120 may be used for a variety of purposes, typically used in the main column wall. FIG. 9 is a schematic plan view of a conventional columnar retaining wall 103 using the thumb pile embedded pile unit 120 as described above. As shown in the figure, the heat-staining wall (103) is generally installed after the drilling of the ground at the side of the construction site of the underground wall of the structure, the thumb pile 101 is installed at a predetermined interval and around the thumb pile 101 The pile unit 120 formed by pouring the filler 102 such as soil cement or concrete and the pile unit 130 formed by pouring only the filler 102 without the thumb pile 101 are continuously disposed at a predetermined interval adjacent to each other. It has a structure to form the columnar soil wall (103).

However, it has been pointed out that in such a conventional heat-staining wall 103, the perforation diameters of the pile units 120 and 130 are all constant and their sizes are small so that the rigidity of the wall is not sufficient. Therefore, in the conventional columnar wall, there is a limit to widening the vertical gap of the support.

It is often desirable to make the thumb pile 101 larger when not only using it as the main heating wall 103, but also when using the thumb pile embedded pile unit 120 for other purposes. In order to use a larger thumb pile 101, the diameter of a hole to be drilled in the ground is inevitably increased, but if the diameter of the hole is increased by simply increasing the diameter of the hole, the construction cost due to drilling is excessive, and the economical efficiency is lowered. Furthermore, there is a disadvantage in that the space around the thumb pile 101 to fill the filler 102 becomes unnecessarily large.

On the other hand, in such a heat-staining wall 103, when using the cement or concrete as the filler 102, it is extremely difficult to draw and recycle the H-beam thumb pile 101 embedded in the filler 102 . On the other hand, since the H-beam is mainly made of steel and expensive, it is very economically disadvantageous to embed the H-beam thumb pile 101 in the filling material 102. There are many cases where the underground wall is directly adjacent to the earth wall (103), but in the past, the H-beam thumb pile (101) is concretely confined to the H-beam thumb pile (101) as mentioned above. Efforts have been made to utilize the structural member to increase the rigidity.

FIG. 10 is a plan view showing a structure in which a concrete underground wall 100 is synthesized in a conventional columnar retaining wall 103. As shown in FIG. 10, a front surface of one flange of an H beam thumb pile 101 is shown. It is proposed that the connection bolt 110 is fixed in advance and the connection bolt 110 is embedded in the concrete underground wall 100 so that the H beam thumb pile 101 and the concrete underground wall 100 are integrally formed. It is becoming. However, in the prior art as described above, since the filler 102 is poured around the H beam thumb pile 101, the connection bolt 110 is damaged in the process of removing the filler 102 around the H beam thumb pile 101. It is not easy to expose the connection bolt 110 installed in the H-beam thumb pile 101 in the state that the trench construction is completed or in progress because it is likely to be a problem, the workability is deteriorated accordingly. As described above, previous attempts to integrate the H beam thumb pile 101 with the underground wall 100 and use it as a structural member for rigid reinforcement of the underground wall 100 have been performed by the H beam thumb pile 101 in the pile unit. It is difficult to put into practical use because it is completely buried inside.

In the present invention, when constructing the pile pile embedded pile unit as described above, not only to increase the diameter of the drilling, but also to continuously drill holes for the pile unit adjacent to each other through a novel configuration, and to continuously drill the H-beam thumb pile By installing over two holes, the pile unit can be installed to prevent the increase of the drilling cost due to the expansion of the drilling diameter and to reduce the use of unnecessary fillers. It aims to provide.

In addition, in the present invention in the construction of the pile unit in the heat-stacking wall, by applying the pile unit construction method of the present invention as described above, the thumb pile is completely embedded in the filling material, such as soil cement or concrete in the pile unit, expensive An object of the present invention is to solve problems with the prior art, such as a thumb pile. Specifically, in the present invention, a part of the thumb pile included in the pile unit may be exposed to the outside of the pile unit, so that the thumb pile may be easily used as a structural member that reinforces the stiffness of the structure that is in contact with the earth wall without the thumb pile. The purpose is to make it possible.

In addition, the present invention is a conventional technology that can not form a sufficient rigid soil wall wall because the drilling diameter of the pile unit is all constant and small in the construction of the column-style soil wall wall, and thus can not widen the vertical gap of the jibo It aims to solve the shortcomings and limitations of the. Specifically, the present invention, through a novel configuration, the hole for the pile unit in succession partially overlapped, install a large H-beam thumb pile over the continuous perforated holes to form a pile unit, such a pile unit By constructing the retaining wall with the included structure, a large rigid retaining wall is formed, and accordingly, the vertical gap of the jibo is also increased to achieve economical construction. For the purpose of providing it.

In the present invention for the above purpose, in the construction method of the pile unit having a structure in which the thumb pile is inserted into the hole drilled in the ground, the first hole is drilled to a predetermined depth in the ground and the first pipe member in the first hole Inserting to perform a primary casing operation; It consists of a half-wall-shaped cross-sectional structure having a concave portion on one side, and when the H-beam thumb pile is inserted, a slit which is opened as the web passes through is formed in the recess in the longitudinal direction (the longitudinal direction of the tube member). Inserting the inside of the first pipe member and performing a second casing operation to draw and remove the first pipe member; Performing a third casing operation of drilling a second hole immediately adjacent to the first hole and inserting a third pipe member into the second hole; Performing a fourth casing operation of inserting a fourth pipe member having a slit in the longitudinal direction to the inside of the third pipe member so that the web can pass when the H beam thumb pile is inserted; And inserting an H beam thumb pile over the first hole and the second hole with the slit of the fourth pipe member and the slit of the second pipe member facing each other. There is provided a method of constructing a pile pile buried pile unit, characterized in that the pile unit is constructed so that a portion is drilled continuously overlapping each other and the H-beam thumb pile is disposed in the drilled hole.

In addition, in the present invention, after installing the H-beam thumb pile over the first hole and the second hole, the filler is placed inside the second pipe member, and the second pipe member is drawn and removed before the filler is cured; And drawing out and removing the fourth pipe member after the filler is cured to a predetermined strength or more, thereby constructing the pile unit such that only a portion of the H-beam thumb pile is embedded in the filler of the pile unit. Provided is a construction method of a thumb pile embedded pile unit.

In addition, in the present invention, after installing the H-beam thumb pile over the first hole and the second hole, the filler is poured into the second tube member and the fourth tube member, and the second tube member and the fourth tube member are drawn and removed. The method of constructing the pile pile buried pile unit, characterized in that the pile unit is constructed so that the whole of the H-beam thumb pile is embedded in the filler of the pile unit.

In the present invention described above, the second pipe member has a configuration in which a guide run is formed inside the recess, and the guide is inserted between the guides to temporarily close the slit; Prior to inserting the H beam thumb pile over the first hole and the second hole, the inlet preventing plate may be removed to open the slit.

In addition, in the present invention, the pile unit is formed by installing the H-beam thumb pile in the hole of the predetermined depth perforated in the ground and filled the filler material around, and the pile unit formed by filling only the filler material in the perforated hole adjacent to a certain interval As a method of constructing a main heat-retaining wall by successive arrangement, the pile unit is constructed so that only a part of the H-beam thumb pile is embedded in the filler by the above-described method, and the pile unit is formed by the H-beam thumb pile. There is provided a method of constructing a staggered wall structure, which is arranged between predetermined intervals of a pile unit which is not included.

In addition, in the present invention, the pile unit is formed by installing the H-beam thumb pile in the hole of the predetermined depth perforated in the ground and filled the filler material around, and the pile unit formed by filling only the filler material in the perforated hole adjacent to a certain interval As a method of constructing a heat-retaining wall structure by continuously arranging the structure, the H-beam thumb pile is disposed in the form of the H-beam thumb pile in a continuous perforated hole with a part overlapped by the above method, so that the entire H-beam pile is embedded in the filler. A piling unit wall construction method is provided, wherein the pile unit is installed to be provided, and the pile unit is disposed between predetermined intervals of the pile unit not including the H beam thumb pile.

Hereinafter, with reference to the accompanying drawings will be described in detail the construction method of the pile pile buried pile unit according to the present invention, and the construction method of the column-type mud wall using the same. In the following description, but one example of the thumb pile "H beam thumb pile" is illustrated, but the thumb pile of the present invention is not limited to the "H beam" shape. In addition, below, as an example of the use of the pile unit constructed in accordance with the present invention, it is illustrated that the main heat-sucking wall, the patent claim for this, but the pile unit constructed by the construction method of the pile unit according to the present invention is used Examples are not necessarily limited to staggered wall.

FIG. 1 is a schematic plan view of a columnar retaining wall 1 constructed in accordance with one embodiment of the present invention. In the main column wall 1 according to an embodiment of the present invention shown in the drawing is formed by a plurality of pile units (2, 3) are arranged in succession, H beam thumb pile 10 is not inserted simply filling material The pile unit 2 of the structure in which the H beam thumb pile 10 which is larger than the case of the said pile unit 3 is embedded in the filler 31 at predetermined intervals between the pile units 3 which consist only of 31. It has a structure that is arranged. That is, as shown in the figure, the pile unit 2 of the structure in which the H-beam thumb pile 10 is embedded in the filler 31, the first hole and the second hole of the hole in the direction perpendicular to the pile unit arrangement surface Perforated to overlap a portion has a structure in which the H beam thumb pile 10 is disposed over the first hole and the second hole.

As such, it is simply perforated to have a larger hole than the pile unit 3 consisting of only the filler 31 and inserting the H beam thumb pile 10 larger than the one previously inserted into the pile unit 3 When the unit 2 is formed, the rigidity of the main heating wall 1 can be further increased by the rigidity of the larger H-beam thumb pile 10. In addition, as the large stiff soil wall forms a wall, the vertical spacing of jibo is also increased to achieve economic construction. In addition, when the H beam thumb pile 10 embedded in the pile unit 2 is utilized as a structural member of the concrete underground wall 100 constructed adjacent to the main thermal wall 1, the larger H beam By increasing the rigidity of the thumb pile 10 it is possible to reduce the thickness and the like of the concrete basement wall 100 it becomes more economical construction is possible.

However, in order to construct the pile unit 2 having the larger H-beam thumb pile 10 as described above, the perforation cross-section should be large, but it is never desirable to perforate simply by increasing the diameter of the auger. Because simply increasing the diameter of the auger to increase the perforated section will increase the cost of drilling the ground rapidly. In addition, in the above case, the amount of the filler 31 to be filled around the H-beam thumb pile 10 is also excessively increased, thereby increasing the construction cost. In addition, an auger having a diameter different from that of the auger for the construction of the pile unit 3 in which the H-beam thumb pile 10 is not installed must be separately prepared, and the augers of different sizes must be alternated. Therefore, not only the cost increases, but also the boring work is cumbersome, the workability is very poorly generated.

In order to solve this problem, the present invention constructs a pile unit 2 having a larger H-beam thumb pile 10 by the following method steps. 2A to 2F are side views to plan views for explaining each step included in the construction step of the pile unit according to the present invention.

First, as shown in the vertical cross-sectional view of FIG. 2A, the ground is drilled to a predetermined depth by using a boring machine 70 such as auger to form the first hole 50. When the drilling machine 70 excavates into the ground, the first casing 50 is inserted into the first hole 50 to perform the first casing operation. When the drilling is completed and the first pipe member 51 is inserted and installed in the first hole 50, another second pipe member 52 is formed inside the first pipe member 51 as shown in a vertical cross-sectional view of FIG. 2B. Insert the second casing to remove the first pipe member 51 is removed. 2C is a plan view of a state in which only the second pipe member 52 is installed in the first hole 50 by completing the secondary casing operation.

In the present invention, the second pipe member 52 has a half-month cross-sectional structure having a concave portion 53 having one side concave as shown in FIG. 2C. For example, it is easy to manufacture a half-walled cross section having a concave portion 53 by cutting a circular arc portion of a predetermined length in the longitudinal direction (the longitudinal direction of the tubular member) from one side of the tube member and then inverting and reattaching it. Can be. As will be described later, when inserting the H beam thumb pile 10, the slits in the longitudinal direction in the middle of the concave portion 53 are formed so that the web 11 of the thumb pile 10 can penetrate through the second pipe member 51. 54 is formed. In some cases, when the second hole is in contact with the first hole as described below, the earth and sand may flow into the second pipe member 52 through the slit 54. It is also possible to temporarily install 55. In the embodiment shown in the drawing to form a guide run 56 to the inside of the concave portion 53 to facilitate the removal by removing the inflow preventing plate 55 and the inflow preventing plate 55 between the guide run (56). It is configured to be removed by sliding the inflow preventing plate 55 from the guide run 56 by insertion.

Thereafter, the second hole 60 is drilled in the ground by using the puncher 70 adjacent to the recess 53 of the second pipe member 52. Conventionally, it was not possible to continuously drill holes in the ground. That is, it was not possible to puncture the second hole 60 immediately adjacent to the first hole 50 as described above. This is because soil in the ground collapses in the process of drilling the second hole and flows into the first hole. However, in the present invention, the second pipe member 52 is installed in the first hole 50 in advance, and in particular, the concave portion is provided on the side surface of the second pipe member 52 to secure a space for drilling the second hole. Since 53 is formed, it is possible to drill the second hole 60 immediately adjacent to the first hole 50 because the ground soil is prevented from falling into the first hole during the drilling process. As such, when the perforator drills into the ground at a position adjacent to the first hole 50 to form the second hole 60, the third pipe member 61 is disposed in the second hole 60 as shown in the plan view of FIG. 2D. The third casing work to insert) will be performed in parallel.

In this way, while the third pipe member 61 is inserted into the second hole 60, the fourth pipe member 62 is subsequently inserted into the third pipe member 61, and the third pipe member 61 is inserted therein. ) Performs the fourth casing operation to draw and remove. 2E is a plan view showing a state in which the third pipe member 61 is drawn after the fourth pipe member 62 is installed. As shown in the drawing, the slit 64 is elongated in the longitudinal direction in the fourth tube member 62 in the lateral side of the first tube 50 in the direction of the second tube member 52, similarly to the second tube member 52. The fourth tube member 62 is disposed such that the slit 64 and the slit 54 of the second tube member 52 face each other to communicate with each other. After installing the fourth pipe member 62, the H beam thumb pile 10 is inserted over the first hole 50 and the second hole 60, as shown in the plan view of FIG. 2F. In the present invention, since the slits 54 and 64 face each other on the side surfaces of the second pipe member 52 and the fourth pipe member 62 as described above, the web 11 of the H-beam thumb pile 10 is Passing through the slits 54 and 64 may be disposed over the first hole 50 and the second hole 60 on both sides. As described above, when the slit 54 of the second pipe member 52 is blocked by the inflow preventing plate 55, the inflow preventing plate 55 is removed to allow the slits 54 and 64 to communicate with each other. Insert and install the beam thumb pile (10).

Through such a configuration, it is possible to install the H-beam thumb pile 10 having a larger size than before by drilling two holes in succession without increasing the drilling diameter of the pile unit.

Although already described, the example in which the pile unit constructed by the construction method of the pile unit according to the present invention is used is not necessarily limited to the main heating wall. That is, in the state shown in Figure 2f to fill the earth and sand as the filling material in the first hole 50 and the second hole 60, the second pipe member 52 and the fourth pipe member 62 is used to remove and remove, respectively. Can be. In this case, it is easy to draw and recycle the H-beam thumb pile 10 later.

In the case of constructing the columnar wall 1 as shown in FIG. 1, the following steps are subsequently performed.

When the H beam thumb pile 10 is installed, the filling material 31 such as soil cement or concrete is poured into the second pipe member 52 and the fourth pipe member 62, respectively, so that the entire H beam thumb pile 10 is filled. (31) to be buried in. Subsequently, before the filler 31 is cured, the second pipe member 52 and the fourth pipe member 62 are drawn and removed, respectively. 3 is a plan view showing a state in which both the second pipe member 52 and the fourth pipe member 62 are removed by the above-described process.

After the pile unit 2 is constructed in this manner, the conventional pile unit 3 without the H beam thumb pile 10 is installed on the left and right sides of the first hole 50 by using a conventional method. The pile units 2 and 3 are arranged continuously. That is, as shown in FIG. 1, the first hole 50 and the second hole 60 are overlapped and the H beam thumb pile 10 is embedded in the filler 31 in the filler 31 therein. The pile unit 2 of the structure and the pile unit 3 of the structure in which the H-beam thumb pile 10 is not embedded in the filler 31 on the left and right sides thereof are arranged in succession, and the main heating wall according to the present invention is arranged. (1) is formed. As described above, the main heat-stacking wall 1 of the present invention including the pile unit 2 having the structure in which all of the H-beam thumb piles 10 are embedded in the filling material 31 is used in various ways. The beam thumb pile 10 can be utilized as a structural member.

4 shows the H-beam thumb pile 10 as shown in FIG. 3 when the concrete underground wall 100 is constructed in contact with the main thermal wall 1 constructed in accordance with the present invention. By installing the shear connector 110 in the pile unit (2) of the buried structure so that the shear connector 110 is embedded in the concrete underground wall (100), the main heat-retaining wall (1) and concrete underground wall (100) A plan view is shown showing an embodiment in which) is integrally synthesized.

In order to construct an underground structure, the ground of the front part of the pile units 30 and 31 is excavated in the state of FIG. 1 to be in contact with the main thermal wall 1 to construct the concrete underground wall 100. In the case of the pile unit 2 in which the H-beam thumb pile 10 is embedded, the outer surface of the H-beam thumb pile 10 is exposed, and the shear connecting member 110 is installed on the exposed surface. Subsequently, when the concrete underground wall 100 is constructed as shown in FIG. 4, the shear connection material 110 installed on the exposed outer surface of the H-beam thumb pile 10 is embedded in the concrete underground wall 100 so that the concrete underground wall 100 is embedded. ) Will be formed.

Meanwhile, by further performing the steps described below after the steps shown in FIGS. 2A to 2F, the filler is filled in only one of the first hole 50 and the second hole 60, and the H beam thumb pile 10 is filled. It can also be used for other purposes, such as exposing a portion of) to the outside of the filler and embedding it in the walls of the underground structure.

That is, the filler 31 is poured into the second tube member 52 in the state where the H beam thumb pile 10 is installed through the step shown in FIG. 2F, and the second tube member (before the filler 31 is cured). 52) is removed by drawing, and when the curing of the filler 31 is completed, the fourth pipe member 62 is also removed by drawing. FIG. 5 is a plan view showing a state in which both the second pipe member 52 and the fourth pipe member 62 are removed by the above-described process. When drawing out the fourth pipe member 62, the filler 31 is attached to the outer surface of the fourth pipe member 62 to prevent the drawing of the fourth pipe member 62 from becoming difficult. 62) It is preferable to apply a releasing agent to the outer surface, and although not shown in the drawing, in some cases, the fourth pipe along the boundary of the region where the filler 31 filled in the first hole 50 is attached while curing. If a plate member such as a plastic plate is pasted on the outside of the member 62 and the filler 31 of the first hole 50 is cured later, and the plate member is stuck with the filler 31, the fourth tube member ( By twisting 62, the plate member may be separated from the fourth tube member 62 while being attached to the filler 31 to draw only the fourth tube member 62.

After drawing up and removing the fourth pipe member 62 and constructing the pile unit 2, the H beam thumb pile 10 is not disposed on the left and right sides of the first hole 50 using a conventional method. The pile unit 3 is constructed so that the pile units 2 and 3 are continuously arranged. 6, a pile unit 2 having a structure in which a portion of the H beam thumb pile 10 is embedded in the filler 31, and an H beam thumb pile 10 is embedded in the filler 31 on the left and right sides thereof. The top view of the state in which the pile unit 3 of the structure which is not provided is continuously arrange | positioned and the main column type wall wall 1 which concerns on one Embodiment of this invention is formed is shown. Pile unit 2 having a structure in which a portion of H beam thumb pile 10 is embedded in filler 31, as shown in the figure, does not include H beam thumb pile 10 at all. (3) It may be repeatedly arranged with several pieces in between.

As described above, the main column type wall 1 including a pile unit 2 having a structure in which a portion of the H beam thumb pile 10 is embedded in the filler 31 is formed using various configurations. (10) can be utilized as a structural material.

7A to 7C, a pile unit having a structure in which a portion of the H-beam thumb pile 10 is embedded in the filler 31 when the concrete underground wall 100 is constructed in contact with the main thermal wall 1 is constructed. A plan view showing various embodiments of the utilization method of the H-beam thumb pile 10 in the columnar retaining wall 10 including 2) is shown.

In order to construct the underground structure, the ground of the front part of the pile unit 30, 31 including the second hole 61 in the state of FIG. 100) will be installed. In the case of the pile unit 2 in which a portion of the H beam thumb pile 10 is exposed to the outside of the filler 31, the H beam thumb pile (when the concrete underground wall 100 is constructed, as shown in FIGS. 7A and 7B). The exposed portion of 10 may be embedded in the concrete underground wall 100. In this case, since the portion of the H-beam thumb pile 10 embedded in the concrete underground wall 100 functions as a structural member to reinforce the rigidity of the concrete underground wall 100 itself, the concrete underground wall 100 accordingly It is possible to reduce the thickness or to reduce the reinforcing members such as reinforcing bars in the interior can be economical construction. In particular, when the thickness of the concrete underground wall 100 is reduced, the advantage that it is possible to secure a wider underground space. In addition, since the pile unit and the concrete underground wall 100 that is embedded with the H-beam thumb pile 10, that is, the soil wall 1 and the concrete underground wall 100 are integrally combined to exert a synthetic effect, the filler of the pile unit The portion of the H-beam thumb pile 10 embedded in the 31 is not dead but has an advantageous function of increasing the rigidity of the concrete underground wall 100.

In addition, as shown in FIG. 7C, the concrete underground wall 100 may be constructed inside the flange of the H beam thumb pile 10 exposed to the outside of the filler 31 of the pile unit 2, in which case the filler 31. A part of the H-beam thumb pile 10 exposed to the outside may be used as a support for installing the formwork for the construction of the concrete underground wall 100, so that the construction of the concrete underground wall 100 may be more easily performed. .

As described above, in the present invention, in constructing the thumb pile embedded pile unit, instead of simply increasing the punching diameter, the holes are continuously drilled so as to be adjacent to each other, and the H beam thumb pile is continuously spread over the two holes which are continuously punched. By making it possible to install a larger sized pile, it is possible to prevent an increase in the drilling rate due to the expansion of the drilling diameter and to reduce the use of unnecessary fillers.

In particular, when constructing the pile unit of the heat-stacking wall, it is possible to apply the construction method of the pile unit according to the present invention as above, the small diameter pile unit (3) is not inserted into the H-beam thumb pile (10) In accordance with the present invention, a large diameter pile unit 2 having the H-beam thumb pile 10 inserted therebetween is mixed and arranged at predetermined intervals so as to constitute the entire wall of walls. In such a structure, since the large diameter pile unit 2 into which the H-beam thumb pile 10 is inserted exhibits great rigidity, the vertical gap of the support beam can be formed with a large width, thereby making construction easier and faster. It has the advantage of being able to. In particular, since the large diameter pile unit 2 into which the H-beam thumb pile 10 having large rigidity is inserted exerts a large bearing force against the concrete underground wall 100, the thickness of the concrete underground wall 100 can be reduced. In this case, the construction cost of the concrete underground wall 100 is reduced, and the area occupied by the concrete underground wall 100 is reduced, thereby securing a wider underground area.

In addition, according to the present invention, the first tube (51), the second tube member 52 having a half-wall-shaped cross-sectional structure, the third tube member 61, and the fourth tube member 62 using the first hole ( 50) and the second hole 60 is continuously drilled in a state adjacent to only the portion of the H beam thumb pile 10 is embedded in the filler 31 and the remaining pile unit of the structure exposed to the outside of the filler 31 (2) can be easily installed in an economic way.

Including the pile unit 2 of such a structure, the construction of the main thermal wall 1 to increase the rigidity of the concrete underground wall 100 to the expensive H-beam thumb pile 10 can be easily It can be utilized as a concrete basement wall 100 can be economically constructed. Specifically, since the H beam thumb pile 10 is utilized as a structural member to exert great support for the concrete underground wall 100, the thickness of the concrete underground wall 100 can be reduced, and accordingly, the concrete underground wall 100 The construction cost is reduced, the area occupied by the concrete underground wall 100 is reduced, there is an advantage that can secure a wider underground area.

In particular, only a portion of the H-beam thumb pile 10 is embedded in the filler 31 and the other part can be formed using a pile unit 2 having a structure exposed to the outside of the filler 31 There is an advantage.

Claims (6)

As a construction method of a pile unit having a structure in which a thumb pile is inserted into a hole drilled in the ground, Drilling a first hole (50) to a predetermined depth in the ground and inserting a first pipe member (51) into the first hole (50) to perform a primary casing operation; The slit 54 is made of a half-wall-shaped cross-sectional structure having a concave concave portion 53 on one side, and the slit 54 is opened while the web of the H-beam thumb pile 10 passes through when the H-beam thumb pile 10 is inserted. The second tube member 52 formed in the recess 53 is inserted into the first tube member 51 and the first tube member 51 performs a secondary casing operation of drawing and removing the first tube member 51. step; Performing a third casing operation of drilling the second hole 60 immediately adjacent to the first hole 50 and inserting a third pipe member 61 into the second hole 60; When the H-beam thumb pile 10 is inserted, the fourth pipe member 62 having the slits 64 formed in the longitudinal direction on the side thereof is inserted into the third pipe member 61 so that the web can pass therethrough. The third pipe member 61 is a step of performing the fourth casing to remove the draw; And The first hole inside the second pipe member 52 in a state in which the slit 64 of the fourth pipe member 62 and the slit 54 of the second pipe member 52 communicate with each other. 50) and inserting the H-beam thumb pile 10 over the second hole 60 in the fourth pipe member 62 so that the two holes are successively drilled in such a manner that their portions overlap each other. Construction method of the pile pile buried pile unit, characterized in that the pile unit (2) is constructed so as to have a structure in which the H-beam thumb pile (10) is placed over the perforated hole. The method of claim 1, After installing the H beam thumb pile 10 over the first hole 50 and the second hole 60, placing the filler 31 in the second pipe member 52; Drawing and removing the second pipe member (52) before the filler (31) is cured; And After the filler 31 is hardened to a predetermined strength or more, the fourth pipe member 62 may be drawn and removed, so that only a portion of the H beam thumb pile 10 is filled in the pile unit 2. Construction method of the pile pile buried pile unit, characterized in that to construct the pile unit (2) to have a structure embedded in the inside. The method of claim 1, After installing the H beam thumb pile 10 over the first hole 50 and the second hole 60, the filler 31 is poured into the second pipe member 52 and the fourth pipe member 62. step; And And removing the second pipe member 52 and the fourth pipe member 62 before the filler 31 is cured so that all of the H-beam thumb pile 10 is filled in the pile unit 2. Construction method of the pile pile buried pile unit, characterized in that to construct the pile unit (2) to have a structure embedded in the true material (31). The method according to any one of claims 1 to 3, The second pipe member 52 forms a guide run 56 inside the recess 53 and inserts the inflow preventing plate 55 between the guide runs 56 to temporarily close the slit 54. Has a configuration;  Before the insertion of the H-beam thumb pile 10 over the first hole 50 and the second hole 60, the inflow preventing plate 55 is removed to open the slit 54. Construction method of thumb pile embedded pile unit. The pile unit 2 formed by installing the H-beam thumb pile in a hole having a predetermined depth drilled into the ground and filling the filler 31 around the pile, and the pile unit 3 formed by filling only the filler in the drilled hole As a method of constructing the main heat-resisting wall (1) by arranging continuously at regular intervals, Drilling a first hole (50) to a predetermined depth in the ground and inserting a first pipe member (51) into the first hole (50) to perform a primary casing operation; It consists of a half-wall-shaped cross-sectional structure having a concave concave part 53 on one side, and when the H beam thumb pile 10 is inserted, a slit 54 is formed in the concave part 53 in the longitudinal direction. Inserting a second pipe member (52) into the first pipe member (51) and performing a second casing operation to draw and remove the first pipe member (51); Performing a third casing operation of drilling the second hole 60 immediately adjacent to the first hole 50 and inserting a third pipe member 61 into the second hole 60; When the H-beam thumb pile 10 is inserted, a fourth pipe member 62 having a slit 64 formed in the longitudinal direction is inserted into the third pipe member 61 so that the web can pass therethrough. Performing a fourth casing operation to draw and remove the third pipe member (61); The first hole 50 and the second hole 60 in a state in which the slit 64 of the fourth pipe member 62 and the slit 54 of the second pipe member 52 face each other and communicate with each other. Inserting the H-beam thumb pile 10 over; Pouring the filler 31 onto the second pipe member 52 and drawing and removing the second pipe member 52 before curing; And After the filler 31 is hardened to a predetermined strength or more, a step of drawing and removing the fourth pipe member 62 has a structure in which only a part of the H beam thumb pile 10 is embedded in the filler 31. Construction pile unit (2), The pile unit (2) is arranged between the predetermined intervals of the pile unit (3) that does not contain the H-beam thumb piles. The pile unit 2 formed by installing the H-beam thumb pile in a hole having a predetermined depth drilled into the ground and filling the filler 31 around the pile, and the pile unit 3 formed by filling only the filler in the drilled hole As a method of constructing the main heat-resisting wall (1) by arranging continuously at regular intervals, Drilling a first hole (50) to a predetermined depth in the ground and inserting a first pipe member (51) into the first hole (50) to perform a primary casing operation; It consists of a half-wall-shaped cross-sectional structure having a concave concave portion 53 on one side, and when the H-beam thumb pile 10 is inserted, a slit 54 is formed in the concave portion 53 in the longitudinal direction. Inserting a second pipe member (52) into the first pipe member (51) and performing a second casing operation to draw and remove the first pipe member (51); Performing a third casing operation of drilling the second hole 60 immediately adjacent to the first hole 50 and inserting a third pipe member 61 into the second hole 60; When the H-beam thumb pile 10 is inserted, a fourth pipe member 62 having a slit 64 formed in the longitudinal direction is inserted into the third pipe member 61 so that the web can pass therethrough. Performing a fourth casing operation to draw and remove the third pipe member (61); The first hole 50 and the second hole 60 in a state in which the slit 64 of the fourth pipe member 62 and the slit 54 of the second pipe member 52 face each other and communicate with each other. Inserting the H-beam thumb pile 10 over; The filler 31 is poured into the second pipe member 52 and the fourth pipe member 62, and the second pipe member 52 and the fourth pipe member 62 are drawn out before the filler 31 is cured. And a step of drilling two holes so that a part thereof overlaps each other continuously, and the H-beam thumb pile 10 is disposed in the perforated hole so as to have a structure embedded in the filler 31. (2) construction, The pile unit (2) is arranged between the predetermined intervals of the pile unit (3) that does not contain the H-beam thumb piles.

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