WO2002090685A1

WO2002090685A1 - Column and covering material for column, column constructing method and retaining wall constructing method

Info

Publication number: WO2002090685A1
Application number: PCT/JP2001/003714
Authority: WO
Inventors: Masato Watanabe
Original assignee: Hito Mirai General Planning Co., Ltd.
Priority date: 2001-04-27
Filing date: 2001-04-27
Publication date: 2002-11-14
Also published as: JPWO2002090685A1

Abstract

A column capable of being constructed simply, providing a sufficient strength, and being resistant to change with time. First, a hole serving as an embedment (1) is excavated at a column erecting position as shown in Fig.1(A),an the aggregate (2) is inserted into and erected in the excavated hole as shown in Fig. 1(B), concrete or the like is poured into the hole to fix the embedment (1), and the aggregate (2) is covered with a covering material (3) so that the aggregate (2) projecting from the embedment (1), and the aggregate (2) is covered with a covering material (3) so that the aggregate (2) projecting from the embedment (1) is inserted into an insertion hole penetrating the center of the covering material (3) as shown in Fig. 1(C). Then, concrete or the like is filled into the gap between the aggregate (2) and the inner wall of the covering material (3) to form a column having the aggregate (2) and the covering material (3) put in one piece. The covering material (3) is provided with joining mechanisms (4) to permit the column to be joined with walls and beams.

Description

Description Pillars and pillar covering materials, pillar construction methods and retaining wall construction methods

The present invention relates to a pillar rising from a foundation, and a pillar covering material suitable for the pillar. Conventional technology

Recently, because of the effective use of land, or to build a structure on sloping ground, or to build a retaining wall to slope areas, the _£ also carried out that such or built in its bottom or top of the underground construction It is often built. Such underground construction and retaining wall construction generally require large-scale construction.

FIG. 13 is an explanatory diagram of an example of a conventional building construction method. In the figure, 21 is an underground beam, 22 is a column, 23 is an underground pile, and 24 is a footing. Conventionally, when constructing a building having an underground part as described above, for example, as shown in Fig. 13 (A), it is several tens of rr! Drill the whole to a depth of ~ 1 m or more, construct the underground beam 21 and then build the pillar 22. Then, other members, such as walls, will be built. In such a construction method, the excavation amount is large, and it is necessary to temporarily install a sheet pile or the like on the exposed surface until the wall material is provided.

When the building is large, for example, as shown in Fig. 13 (B), an underground pile 23 such as a PC pile is placed, the upper part is broken, the internal reinforcing steel is taken out, and the underground beam 2 is removed. Footing 24 for connection with 1 and pillar 22 will be provided, underground beam 21 and pillar 22 will be constructed, and other members will be constructed. This method requires a large footing 24. Also in this case, it is necessary to temporarily install a sheet pile etc. on the excavated and exposed surface until the wall material is provided.

Furthermore, in the above two conventional construction methods, the foundations (for example, underground beams 21 and underground piles 23) and columns 22 are constructed separately even though they are connected by steel bars. Ruta Therefore, it was necessary to maintain sufficient bonding strength. In addition, since the foundations and pillars were constructed separately, the construction period was long and the construction cost was high.

FIG. 14 is an explanatory diagram of an example of a conventional retaining wall construction method. In the figure, 31 is a bottom plate, 32 is a vertical plate, and 33 is a backfill part. When constructing a retaining wall on a sloping land, first of all, the part shown as the backfill part 33 in Fig. 14 is cut off. After that, an L-shaped retaining wall consisting of the bottom plate 3 1 and the vertical plate 3 2 is constructed, and the backfill portion 33 is backfilled. The retaining wall constructed in this manner is stabilized with the bottom slab 3 1 under the sediment (^ weight) of the backfill 3 3. Will be constructed.

However, constructing such a retaining wall would require large-scale construction. In addition, unlike the original stable ground, the backfilling section 33 is transformed into unstable ground, and the backfilling section 33 causes uneven settlement, causing the upper structure to tilt or the retaining wall itself. There were problems such as tilting.

FIG. 15 is an explanatory view of another example of the conventional method of constructing a retaining wall. In the figure, 41 is an H-section steel, 42 is a root, 43 is a PC plate, 44 is a tie bar, and 45 is an anchor weight. As a method of constructing a retaining wall that overcomes the above-mentioned drawbacks of the retaining wall construction method, is easy, inexpensive, and can withstand a sufficient load, a retaining wall as shown in Fig. 15 is considered. That is, a hole is dug at the installation position of the retaining wall at a predetermined interval at the embedding portion 42, an H-shaped steel 41 is erected, and concrete is poured into the embedding portion 42, for example, to perform the embedding. Then, a groove is drilled on the mountain side in the direction perpendicular to the retaining wall to provide a tie bar 44, and an anchor ゥ: L-it 45 is provided at the end of the tie bar 44. The PC plate 43 is inserted between the H-beams 41 using the H-section of the H-beam 41. This makes it possible to construct a retaining wall.

With such a configuration, the amount of excavation is very small compared to the construction method shown in Fig. 14, and the retaining wall can be constructed inexpensively and in a short period. Further, it is possible to use the ground stably than not alter the ground, in particular _t can prevent an adverse effect from differential settlement in such method is the embedment section 4 2 until post portion is H-shaped steel 4 1 As shown in Fig. 13, the foundation and pillar It is not necessary to construct them separately, and the period can be shortened and sufficient strength can be secured.

In addition, a simple retaining wall can be constructed without tie bars 44 and anchor weights 45. In addition, a self-standing structure such as a fence can be constructed by using a configuration in which the tie bar 44 and the anchor weight 45 are not provided.

However, in the method of constructing the retaining wall shown in Fig. 15, the H-section steel 41 is used almost bare. Therefore, for example, the buried part on the mountain side is always in contact with wet soil. As a result, it was easily corroded and had a problem with its life. It is conceivable that H-section steel 41 is preliminarily painted, but it is very expensive and has problems such as the painting being cut off during handling during construction.

The present invention has been made in view of the above-mentioned circumstances, and a column that can be easily constructed, has sufficient strength, and is resistant to aging, and a column covering material used for the column. It is intended to provide a method for constructing pillars and retaining walls. Disclosure of the invention

The present invention is characterized in that a pillar includes an aggregate that penetrates a base portion and a pillar portion, and a covering material that covers at least a part of the pillar portion of the aggregate. In addition, the method of constructing such a pillar is to excavate the burial portion, insert the aggregate integrated into the pillar portion into the digged burial portion, build it, perform the burial, and place the bone in the center. A coating material having an insertion hole through which the material penetrates is attached to the aggregate so that a column portion of the aggregate is inserted into the insertion hole. Alternatively, it is also possible to use an aggregate in which the covering material is integrated into the pillar portion, insert the aggregate into the excavated pier, and build the burial. Alternatively, using aggregate in which the covering material is integrated into a part of the pillar, insert the aggregate into the excavated burial, build it, and bury it, leaving the remaining part of the aggregate pillar A covering material may be attached to the cover.

With this configuration, the base and pillars are integrated by inserting the aggregate into the roots without building the foundation and pillars separately. Can be built. At this time, since the pillar can be built only by excavating the embedding portion, the construction can be performed easily and at low cost, and the amount of ground modification can be greatly reduced.

In addition, a covering made of, for example, precast concrete (PC) is covered on the column portion of the aggregate. Alternatively, the covering material is integrated with the pillar part of the aggregate and built as a pillar, or a part of the covering material is integrated and built as a pillar, and then the remaining covering material is attached. By using such a covering material, for example, when used for a retaining wall or an underground structure, the aggregate can be shielded from moisture in the soil and the like, so that corrosion can be prevented and aging can be suppressed.

As a covering material used for such a column, a central portion has an insertion hole through which an aggregate penetrates, and a coupling mechanism for coupling with a member connected to the column can be arranged. . As the coupling mechanism, for example, a coupling mechanism such as a through hole 貫通 into which a rebar or the like can be inserted, a through hole threaded so that a bolt or the like for fixing a plate material or the like can be screwed therein is provided. For example, when constructing a wall or a beam, a reinforcing bar is inserted through the through hole of the cladding material, and if it is fixed between the cladding material and the aggregate by filling it with concrete, for example, the wall made of reinforced concrete And beams and columns can be connected. Also, for example, when a wall is constructed of a PC plate or the like, the wall and the column can be connected by bolting. Of course, a coupling mechanism that can be coupled to another member may be provided.

Further, a material having a wall portion can be used as the column covering material. That is, this is a pillar covering material having a central hole having an insertion hole through which the aggregate penetrates, and a pillar portion covering the aggregate and a wall portion joined to the pillar portion being integrated. When a column covering material having this wall portion is used, the shape of the insertion hole is made cylindrical so that the wall portion does not rotate after the column covering material is inserted into the aggregate, and the shape of the aggregate material is reduced. Preferably, the cross-sectional shape is a polygon having a diagonal line having substantially the same length as the diameter of the inlet hole. However, a structure that allows rotation for fine adjustment to make the ends coincide with each other is allowed.

Further, the column covering material having the wall portion is inserted into a plurality of aggregates installed at intervals in the horizontal direction, and the lateral end portion of the wall portion is connected to the end portion of the column portion of the adjacent column covering material. Connect to This makes it possible to build a retaining wall. If an aggregate having a column portion longer than the height of the column covering is used, a high retaining wall can be constructed by stacking the column covering in the axial direction of the aggregate. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a process chart showing an embodiment of a method for constructing a pillar according to the present invention.

FIG. 2 is an explanatory view of an example of a mode of a coupling mechanism in one embodiment of the pillar covering material of the present invention.

FIG. 3 is an explanatory view of another example of the mode of the coupling mechanism in the embodiment of the column covering material of the present invention.

FIG. 4 is a process chart showing a second embodiment of the method for constructing a pillar according to the present invention.

FIG. 5 is a process chart showing a third embodiment of the method for constructing a pillar according to the present invention.

FIG. 6 is a cross-sectional view showing an example of an aggregate provided with a covering material that can be used in the third embodiment of the method for constructing a pillar according to the present invention.

FIG. 6 is an explanatory diagram of an example of a construction method when the pillar of the present invention is used for an underground structure.

FIG. 8 is a diagram illustrating an example of a construction method when the pillar of the present invention is used for a retaining wall. FIG. 9 is an explanatory diagram of an example of a construction method in a case where the pillar of the present invention is used for a retaining wall and the wall is made of reinforced concrete.

FIG. 10 is an explanatory diagram of an example of a method of using the coupling mechanism provided on the pillar according to the present invention. FIG. 11 is an explanatory diagram of an example of a method of using a column covering material having a wall portion to be inserted into an aggregate according to the present invention.

FIG. 12 is an explanatory diagram of an example of a method for constructing a retaining wall using the wall-covering material 5 of the present invention.

FIG. 13 is an explanatory diagram of an example of a conventional building construction method.

FIG. 14 is an explanatory diagram of an example of a conventional retaining wall construction method.

FIG. 15 is an explanatory view of another example of the conventional method of constructing a retaining wall. BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a process chart showing a first embodiment of a method for constructing a pillar according to the present invention. FIG. 1C shows an embodiment of the pillar of the present invention. In the figure, 1 is a rooting portion, 2 is an aggregate, 3 is a covering material, and 4 is a coupling mechanism.

First, as shown in Fig. 1 (A), a hole to be the root 1 is excavated at the position where the column is to be built. After drilling a hole of a predetermined depth, as shown in Fig. 1 (B), insert the aggregate 2 into the drilled hole and build it. As the aggregate 2, various materials conventionally used as re-aggregates, such as H-section steel, box columns, and steel pipes, can be used. Not only metals but also high-rigidity plastics can be used. Then, for example, a concrete is poured into the hole, and the burial portion 1 is fixed. If underground beams are to be constructed, they can be constructed at this point.

Further, in FIG. 1 (C), the covering material 3 is covered on the aggregate 2 so that the aggregate 2 protruding from the root portion 1 is inserted into the insertion hole penetrating the center of the covering material 3. As the coating material 3, for example, precast concrete (PC), aramide fiber, carbon fiber, high-rigidity plastic, or the like can be used. Thereafter, the space between the aggregate 2 and the inner wall of the covering material 3 is filled with, for example, concrete. This makes it possible to form a column in which the aggregate 2 and the covering material 3 are integrated.

The covering member 3 can be provided with a coupling mechanism 4 for coupling with another member coupled to the column such as a wall or a beam. After covering the covering material 3 on the aggregate 2, a wall or a beam is constructed according to the use as described later. At this time, the coupling mechanism 4 can be used.

When the aggregate 2 protrudes from the head of the covering 3 after the covering 3 is covered with the aggregate 2 ί, the covering 3 can be further covered on the aggregate 2. That is, when the aggregate 2 having a long pillar portion is used, the covering material 3 has a length that is easy to handle, and the pillar can be covered by stacking a plurality of the covering materials 3. Of course, aggregate 2 can be added.

FIG. 2 and FIG. 3 are explanatory views of an example of a mode of a coupling mechanism in one embodiment of the column covering material of the present invention. In the figure, 11 is a through hole, 12 and 13 are reinforcing bars, 14 is a nut, 15 is a bracket and 16 is a recess. As shown in FIG. 2 (A), the coating material 3 is provided with a number of coupling mechanisms 4. The coupling mechanism 4 can have various shapes according to the members coupled to the pillar. Also, the arrangement position can be set according to the member to be connected, or provided at a position that can be used for general purposes.

As an example of the coupling mechanism 4, for example, as shown in FIG. 2 (A), the coupling mechanism 4 can be configured as a through hole 11 penetrating from the surface of the coating material 3 to the insertion hole of the internal aggregate 2. For example, when constructing a wall or a beam, as shown in FIG. 2 (B), a reinforcing bar 12 is inserted from the through hole 11 and bent inside the covering material 3. In this way, with the reinforcing bars 12 inserted, or after using the reinforcing bars 12 to construct a wall or a beam, as described above, the space between the aggregate 2 and the inner wall of the covering material 3, for example, concrete By filling with steel, the reinforcing bar 12 inserted from the through hole 11 is also fixed, and walls and beams can be connected to the columns.

Fig. 2 (C) also shows an example in which the coupling mechanism 4 is made up of a penetrating element 1 and a connecting element 4. In this example, the end of the reinforcing bar 12 inserted from the through hole 11 is made annular or hook-shaped. Then, another reinforcing bar 13 is inserted between the aggregate 2 and the inner wall of the covering material 3, and an annular or hook-shaped portion at the end of the reinforcing bar 12 is penetrated. In this example, the bonding force between the column and other members can be increased as compared with the example shown in FIG. 2 (B).

In the example shown in FIG. 2D, the coupling mechanism 4 has a structure in which a nut 14 is embedded. For example, when a PC plate is used as a wall, a bracket can be attached to the PC plate, and the PC plate and the pillar can be connected by bolting. Alternatively, for example, a screw may be cut in a reinforcing bar and screwed to the nut 14. Such a coupling mechanism 4 can also be used as a scaffolding insulator, for example, in a retaining wall of a landslide.

In the example shown in FIG. 2, an example is shown in which a hole is provided as the coupling mechanism 4 such as the through hole 11 and the nut 14. FIG. 3 (A) shows an example in which a metal fitting 15 for fixing is embedded in advance so as to protrude from the covering material 3. Also in this case, when fixing the PC plate or the like, for example, the PC plate can be attached to the pillar by using various types of fixing means such as fitting the PC plate or tightening with a port. Further, in the example shown in FIG. 3 (B), an example in which a concave portion 16 is provided on the surface of the covering material 3 as the coupling mechanism 4 is shown. In such a configuration, for example, a PC plate or the like can be fitted into the concave portion 16 of the covering material 3 and the pillar and the PC plate can be joined by dropping, for example. In this configuration, for example, as shown in FIG. 3 (C), the width of the opening of the concave portion 16 is made different from that of the inner portion, and a PC plate or the like having the same shaped end is inserted from above and fitted. You may comprise so that it may match.

The coupling mechanism 4 is not limited to these methods, and various known methods can be applied. For example, it is also possible to use a method such as bonding with an adhesive or welding. Various coupling mechanisms 4 can be used in appropriate combination. For example, when connecting a plurality of members to a pillar, a structure corresponding to the members to be connected can be applied to each of the connected portions.

Although the covering material 3 is attached so as to cover the aggregate 2 as described above, for example, when the aggregate 2 is inserted into the root portion 1 and fixed, there may be a slight shift in the rotation direction. . However, if the covering material 3 is covered, if it is installed according to the direction in which the coupling mechanism 4 is arranged, even if the internal aggregate 2 is displaced in the rotation direction, other members can be coupled to the pillar without any problem. can do. Therefore, it is possible to construct pillars even if they are not skilled workers.

Further, the covering material 3 can be used as a finishing material as it is. Alternatively, a material usually used as a finishing material, such as concrete, stone, tile, wood, etc., may be mounted on the surface of the coating material 3. Furthermore, in the illustrated example, the shape of the coating material 3 is a force shown as a substantially cylindrical shape. Of course, the present invention is not limited to this, and the outer shape of the cross section may be substantially rectangular, or any other shape. Good.

FIG. 4 is a process chart showing a second embodiment of the method for constructing a pillar according to the present invention. The reference numerals in the figure are the same as those in FIG. In this example, an example is shown in which the covering material 3 is provided in advance on the pillar portion of the aggregate 2. First, as shown in Fig. 4 (A), a hole to be the pier 1 is excavated at the position where the column is to be built. After drilling a hole of a predetermined depth, as shown in Fig. 4 (B), insert the aggregate 2 provided with the coating material 3 into the drilled hole and build it. Then, concrete, for example, is poured into the hole, and the burial portion 1 is fixed. In addition, underground beam When constructing a gutter, it is advisable to leave a portion that is not covered with the covering material 3 alone. Alternatively, the underground beam may be joined to the covering material 3.

According to this construction method, since the covering material 3 is provided in advance on the aggregate 2, the amount of work to be performed on site can be reduced, and the period is further shortened as compared with the first embodiment described above. Therefore, the cost can be reduced. The aggregate 2 and the covering 3 used in this construction method can be the same as those in the first embodiment. FIG. 5 is a process chart showing a third embodiment of the method for constructing a pillar according to the present invention. The reference numerals in the figure are the same as those in FIG. In this example, an example in which a part of the covering material 3 is provided in advance on the pillar portion of the aggregate 2 is shown. First, as shown in Fig. 5 (A), a hole that will be the root 1 is excavated at the position where the column is to be built. After drilling a hole of a predetermined depth, as shown in Fig. 5 (B), insert the aggregate 2 provided with a part of the covering material 3 into the drilled hole and build it. Then, for example, concrete is poured into the hole to fix the rooting portion 1. When constructing an underground beam, it is advisable to leave a portion that is not covered with the covering material 3 alone. Alternatively, the underground beam may be joined to the covering material 3. Then, as shown in FIG. 5 (C), the remaining part of the covering material 3 is attached and completed.

FIG. 6 is a cross-sectional view showing an example of an aggregate provided with a covering material that can be used in the third embodiment of the method for constructing a pillar according to the present invention. 3 'and 3 "are coating materials. In this example, as shown in Fig. 6 (A), the coating material 3' is provided in advance on the aggregate 2. Such a coating material 3 'is provided. After constructing the aggregate 2 as a pillar and constructing a wall or the like, the remaining covering material 3 "can be attached as shown in FIG. 6 (B). After that, fillers such as concrete are filled in the gap between the aggregate 2 and the covering material 3 "ゃ wall material etc., and the pillar is completed. Of course, the covering material 3" is bonded and the construction is completed. May be.

In such a configuration, for example, a portion that cannot be seen in an underground building or the like is provided in advance as an aggregate 2 as a covering material 3 ′ and built as a pillar. Possible applications such as mounting parts <In this case, the covering material 3 ′ can be shared and the covering material 3 ″ can be selected according to the application, and it can be applied to a wide range of applications become. Note that the configurations of the aggregate 2 and the covering materials '3', 3 "shown in Fig. 6 are merely examples, and various modifications are possible. Also, as the coupling mechanism 4, the above-described first embodiment is used. Next, some construction examples will be described.In the following construction examples, the case where the first embodiment of the above-described column construction method is used will be described. However, the present invention is not limited to this, and construction can be performed using the second and third embodiments of the column construction method.

FIG. 7 is an explanatory diagram of an example of a construction method when the pillar of the present invention is used for an underground structure. In Fig. 7 (A), a hole to be used as the pillar and the root 1 is excavated at the position where the pillar is to be installed. Normally, pillars are installed at predetermined intervals, so multiple holes are excavated at predetermined intervals. Then, the aggregate 2 is inserted into the excavated hole, and for example, concrete is poured into the excavated hole to form the rooting portion 1. In this case, the embedding section 1 is the floor of the underground structure or from the floor to a predetermined depth. The upper end of the aggregate 2 is shown only up to the opening of the hole in this example, but it can of course be protruded long above the ground and used as a pillar above the ground.

When the aggregate 2 is thus built in the excavated hole, the covering 3 is applied to the column portion of the aggregate 2 as shown in FIG. 7 (B). This completes the pillars of the underground structure. At this point, as shown by the broken line in Fig. 7 (B), it is advisable to construct beams at the ground or near the ground and connect the columns. When the aggregate 2 protrudes to the above-ground portion, the protruding portion may not be covered with the covering material 3, or, of course, may be covered to the above-ground portion with the covering material.

After that, the underground part is excavated. During excavation, for example, a PC plate can be provided between columns to build a wall. At this time, if the coupling mechanism 4 is provided on the covering material 3, the column and the wall can be coupled using the coupling mechanism 4. Finally, the excavation up to the floor can be done to construct underground beams and floors. Also in this case, the column and the beam, the floor, or the like may be connected using the connecting mechanism 4 of the covering material 3. Of course, finally, for example, concrete is filled between the aggregate 2 and the covering material 3 so that the aggregate 2 and the covering material 3 Will be integrated. The wall material is not limited to the pc version, but may be another material such as reinforced concrete. Although not shown here, it is also possible to construct the above-ground part on the pillar constructed in this way.

In such a construction method, it is not necessary to first excavate a large underground part as in the past, so that there is no need for a step of temporarily retaining the excavated slope with, for example, a sheet pile or the like. It can be shortened and can be constructed safely. This is because the pillar according to the present invention does not need to be excavated for the foundation because the foundation and the pillar are integrated.

Of course, it is also possible to construct an underground structure by first excavating the entire underground part and constructing the pillar of the present invention in the same manner as in the past. Even in this case, the embedding portion 1 is buried deeper than the structure, so that the amount of excavation for the underground beam can be reduced. Also, compared to the conventional construction using piles, for example, there is no need to provide footing for connecting the pile, the underground beam and the column, and the construction can be simplified.

The pillar of the present invention is covered with the covering material 3 as described above. Therefore, even if, for example, H-shaped steel is used as the aggregate 2, the surrounding soil and the aggregate 2 do not come into contact with each other, there is no fear of corrosion, etc. Can be done.

The underground structure constructed in this way can be applied not only to constructing by excavating a flat land, but also to a case where a part of the underground structure is underground on a sloped land. Of course, the pillar of the present invention can be applied not only to underground structures but also to structures having only above-ground parts. For example, the amount of excavation can be reduced as compared with the conventional underground beam-loaded structure, minimizing ground modification and shortening the construction period.

FIG. 8 is an explanatory diagram of an example of a construction method when the pillar of the present invention is used for a retaining wall. In Fig. 8 (A), holes are to be dug at regular intervals at the location where the retaining wall will be constructed. Then, the aggregate 2 is inserted into the excavated hole, and concrete, for example, is poured into the excavated hole to form the rooting portion 1. In this case, the upper part of the aggregate 2 protrudes from the root 1 by the height of the retaining wall. Fig. 8 (B) The covering material 3 is put on the pillar portion of the aggregate 2 as shown in (1).

Here, as shown in FIG. 15, an example is shown in which a tie bar 44 and an anchor weight 45 are used. The tie bar 44 is connected to the column using the connecting mechanism 4 of the covering material 3, and the anchor wire 45 is connected to the column. Then build a wall between each pillar. For example, when the wall is made of a plate material such as a PC plate 43, the pillar and the plate material may be connected by, for example, bolts. In this way, a retaining wall as shown in Fig. 8 (C) is completed.

FIG. 9 is an explanatory diagram of an example of a construction method when the pillar of the present invention is used for a retaining wall and the wall is made of reinforced concrete. In the same manner as in the steps shown in FIGS. 8 (A) and (B) described above, the aggregate 2 is inserted into the excavated hole, the root is laid, and the covering material 3 is covered. The coating material 3 is provided with, for example, a coupling mechanism 4 as shown in FIG. Utilizing this, the reinforcing bars are fixed to the columns using the joining method as shown in FIGS. 2 (B) and 2 (C), and the reinforcing bars are assembled as shown in FIG. 9 (A). Then, by placing concrete, the retaining wall as shown in Fig. 9 (B) is completed.

According to the method using the pillars of the present invention shown in FIGS. 8 and 9, since the aggregate 2 is covered with the covering material 3, the H-shaped steel comes into contact with the soil as in the related art. It is possible to construct a long-life retaining wall with little aging, without worrying about corrosion. Also, compared to the conventional L-shaped retaining wall as shown in Fig. 14, construction is easier and the working period can be significantly shortened.

Of course, the pillar of the present invention can be used for a simple retaining wall without the tie bar 44 and the anchor weight 45. Further, the pillars of the present invention can be arranged at predetermined intervals, and wall materials can be arranged between the pillars to construct a fence. Instead of wall material, a net or the like can be fixed to the pillar, and it can be applied to a baseball field, a driving range, etc.

FIG. 10 is an explanatory diagram of an example of a method of using the coupling mechanism provided on the pillar according to the present invention. In the figure, 17 is a bracket. For example, as shown in Fig. 8 and Fig. 9, when a retaining wall is constructed using the pillars of the present invention, it can be used for mounting members other than the retaining wall, such as walls and beams, during and after the construction. It is possible to For example, Fig. 2 By installing a nut as shown in (D) on the valley side, it can be used as scaffold inserts. That is, by attaching the bracket 17 to the coupling mechanism 4 as shown in FIG. 10, it can be used as a scaffold. By making the bracket 1 detachable, for example, at least in the lower part, it is possible to avoid situations in which anyone other than the parties concerned tries to climb the retaining wall. In addition to the screw-in type using a nut, there are various types of configurations such as a hook-type configuration that can withstand a load, and a configuration in which a scaffold is attached in advance as shown in Fig. 3 (A). It is possible.

FIG. 11 is an explanatory diagram of an example of a method of using a column covering material having a wall portion to be inserted into an aggregate according to the present invention.

The walled covering material 5 is obtained by attaching a wall portion 52 to the above-mentioned covering material. That is, it is composed of a column 51 forming an insertion hole through which the aggregate 2 penetrates, and a wall 52 integrally joined with the column 51. This wall 52 serves as a retaining wall after installation.

It is preferable that the insertion hole of the column 51 is formed in a cylindrical shape. The aggregate 2 has a cross-sectional shape in which the wall-mounted coating 5 hardly rotates around the aggregate 2 after the wall-mounted coating 5 is inserted. For example, an aggregate 2 having a rectangular cross section having a diameter substantially equal to the diameter of the insertion hole can be used. With such a configuration, the wall covering material 5 can be installed with the wall portion 52 facing in any direction, and the wall covering material 5 does not rotate even after the installation, so that temporary fixing of rotation prevention, etc. Do not need. In addition, when the covering material 5 with a wall is installed continuously in the horizontal direction, it is preferable to adopt a structure that allows a rotation of a degree of fine adjustment for matching the ends thereof.

First, the aggregates 2 are installed at intervals in the horizontal direction. Excavation of a hole to be the root 1 at the installation location of each aggregate 2 and fixing of the root 1 after inserting the aggregate 2 are the same as described above.

Then, a covering material 5 with a wall is put on each aggregate 2. The lateral ends of the adjoining covering materials 5a and 5b are connected as necessary. The connection here is a known connection method It can be done with methods, connecting structures and connecting materials.

In the present invention, since the covering material 5 with a wall can be installed in an arbitrary direction as described above, the end portions of the covering materials 5a and 5b adjacent to each other can be easily matched. After the first-stage arrangement of the wall-mounted covering member 5 is completed, the second-stage wall-mounted covering member 5 is installed. Here, for example, a concave portion is formed at the upper end of the wall portion 52 of the wall covering material 5 installed at the first stage, and a convex portion is formed at the lower end of the wall portion 52 of the wall covering material 5 installed at the second stage. Are formed, and the upper and lower walled covering members 5 can be connected by fitting the concave portion and the convex portion. Known joint structures and joint materials used for connecting the upper and lower walled covering members 5 can be used.

Then, the covering material 5 with a wall is stacked up to a predetermined height to complete the retaining wall.

In addition, since the coating material 3, 3 ', 3 "and the coating material 5 with a wall of the present invention can be processed to a unit length, only the broken portion should be replaced when it is partially broken. Can be.

Therefore, maintenance can be easily performed. Industrial applicability

As is clear from the above description, according to the present invention, the aggregate penetrates from the base portion to the column portion, and the column portion of the aggregate is covered with the covering material. In addition, there is no need to separately construct the foundation and pillar, and pillars can be constructed easily, at low cost, and in a short period. In addition, sufficient strength can be obtained. For example, even if it is installed in a constantly wet place such as underground, it can withstand aging and provide a long-life pillar. Furthermore, the amount of soil alteration can be greatly reduced because the foundation is only excavated.

Further, the covering material may be provided with a coupling mechanism for coupling to another member, for example, a wall or a beam. Thus, even if the aggregate is covered with the covering material, the column and other members can be connected well and easily.

Furthermore, as described above, the present invention can be applied to various types of buildings, shortening the construction period, facilitating construction, and enabling construction at low cost. In addition, during construction According to the present invention, there are various effects that are not available in the conventional civil engineering technology, for example, the safety of construction can be ensured.

In addition, the use of the wall covering material allows the pillar portion to be covered and the construction of the retaining wall to be completed at the same time, which shortens the work period and is economical. Since the wall covering material can be installed in any direction, it is not necessary to arrange the directions of the aggregate in advance and the construction is easy.

Claims

The scope of the claims

1. A column comprising an aggregate penetrating a base portion and a column portion, and a covering material covering at least a part of the column portion of the aggregate.

2. The pillar according to claim 1, wherein the covering material is precast concrete (PC).

3. The pillar according to claim 1, wherein the covering material has a coupling mechanism for coupling with a member connected to the pillar.

4. The pillar according to claim 3, wherein the coupling mechanism is a through hole.

5. The pillar according to claim 3, wherein the coupling mechanism is a threaded through hole.

6. A covering material for a pillar, which has an insertion hole through which an aggregate penetrates in a center portion, and a coupling mechanism for coupling with a member connected to the pillar is arranged.

7. The covering material for a pillar according to claim 6, wherein the covering material is made of precast concrete (PC).

8. The column covering material according to claim 6, wherein the coupling mechanism is a through-hole penetrating from an outer surface to the insertion hole.

9. The column covering material according to claim 6 or claim 7, wherein said coupling mechanism is a threaded through hole.

10. A covering material for a column, characterized by having a central hole having an insertion hole through which the aggregate penetrates, and a pillar portion covering the aggregate and a wall portion joined to the pillar portion being integrated.

11. The shape of the insertion hole The cylindrical shape, and the cross-sectional shape of the aggregate is a polygon having a diagonal line having substantially the same length as the diameter of the insertion hole.

Item 7. The column covering material according to item 0.

1 2. Excavate the burial, insert the aggregate integrated into the pillar part into the excavated burial, build it, perform burial, and make a hole in the center where the aggregate penetrates. The covering material is attached to the aggregate so that the pillar portion of the aggregate is inserted into the insertion hole. A method of constructing a pillar, characterized in that:

1 3. A method of constructing a pillar, characterized by excavating the embedding part, inserting the aggregate in which the covering material is integrated into the pillar part, inserting it into the excavated embedding part, and embedding.

1 4. Excavate the burial, insert the aggregate with a part of the covering material into the pillar part, insert it into the digged burial, build it, bury it, and bury it in the pillar part of the aggregate A method for constructing a pillar, comprising attaching the remaining covering material.

1 5. Excavation of the rooting part, insert the aggregate integrated into the pillar part into the excavated part, build it, bury it, and make a central hole through which the aggregate penetrates. The column covering material according to claim 10 or claim 11 is attached to the aggregate so that the column portion of the aggregate is inserted into the insertion hole. The construction method of the retaining wall.

1 6. Excavation of the embedding part, inserting the aggregate integrated into the pillar part into the excavated embedding part, building it, embedding it, claiming claim 10 or claim 1 The column covering material according to item 1 is attached to the aggregate so that the column portion of the aggregate is inserted into the insertion hole, and a predetermined number of the aggregates protruding from the column covering material are attached to the aggregate. A method for constructing a retaining wall, comprising: introducing the column covering material according to claim 10 or claim 11 until the temperature reaches:

17. The method for constructing a retaining wall according to claim 15 or claim 16,

A plurality of the aggregates are installed at intervals in the lateral direction,

A method for constructing a retaining wall, comprising connecting adjacent lateral ends of the column covering material inserted into the aggregate.