JP6397110B1 - Pile, correction material - Google Patents

Abstract

Provided is a pile for making it possible to fix a rail horizontally and in a straight line without performing pile driving accurately. A pile 120 includes a pile body 121 that is a steel pipe pile, and a correction material 122. The correction member 122 includes a cylindrical tube portion 122 </ b> A having an inner surface along the outer surface of the pile body 121. A mounting portion 122B, which is a donut-shaped plate, is provided on the cylindrical portion 122A. The foundation rail 110 is fixed to the plane of the upper surface of the attachment portion 122B. The correction material 122 is welded and fixed to the pile main body 121 in a state where it is placed on the upper side of the pile main body 121. By fixing the distance L, the vertical shift of the pile body 121 is absorbed. The horizontal displacement of the pile main body 121 is absorbed by the size of the upper surface of the attachment portion 122B. [Selection] Figure 7

Description

  The present invention mainly relates to a pile driven into the ground surface in order to support rails laid on a horizontal and straight line at predetermined intervals.

For example, a method of using a temporary tent is known when dismantling a structure. The temporary tent includes an aggregate serving as a framework and a sheet that covers or stretches between the aggregates.
Temporary tents are very useful for preventing sound from dismantling structures and leaking harmful substances to the outside environment. Related laws and regulations regarding the prevention of noise and harmful substance scattering are becoming stricter year by year, and temporary tents used for construction are used not only for the dismantling of structures but also for the construction of structures. Diversified.
Temporary tents, as the name suggests, are temporarily built when needed, and removed when no longer needed. It takes longer to build a temporary tent than to remove it. Of course, the time spent on the construction and removal of the temporary tent also affects the construction period of the work performed using the temporary tent.
Nowadays, the demands for the cost that varies with the construction period or its length are severe, and how to construct and remove a temporary tent quickly and cheaply has become a major issue.

By the way, a foundation is required to construct a temporary tent. Temporary tents are huge despite the name of the tent, and when they are large, their sides and height are nearly 100 m or more. However, temporary tents are light for their size and must be prevented from moving by wind. In this sense, the foundation that plays the role of fixing the temporary tent to the ground is important.
Conventional common foundations are made by placing concrete on site and curing it. However, it is necessary to remove the foundation made in this way together with the removal of the temporary tent, and its handling is a problem.

On the other hand, the applicant has proposed to use a metal rail as a base by laying it on the site. The metal rails are arranged in a straight line and horizontally, and are paired in parallel with each other across a range in which construction is performed. The temporary tent is provided with an aggregate including pillars standing on a pair of rails, and is constructed so as to straddle a range in which construction is performed. The applicant has also proposed moving the temporary tent or a part thereof on a metal rail.
For example, it is possible to shorten the construction period by moving a temporary tent or a part thereof assembled on the rail outside the work zone or on one end side of the rail. This is because by moving the temporary tent, the temporary tent or a part of the temporary tent can be assembled or moved and other work for the construction can be performed in parallel.

However, it is quite difficult to place the two rails horizontally, in a straight line and in parallel with each other as planned. When attention is paid to one rail, the rail is fixed at a predetermined position in the length direction with respect to a pile driven at a predetermined interval on a straight line when viewed in plan.
In this case, since it is difficult to hit the pile accurately on a straight line, the pile may be deviated from the planned straight line. Such horizontal displacement of the pile (shift in the length of the straight line does not cause a big problem, but shift in the width direction of the straight line causes a problem) This creates a situation where the pile cannot be secured to the rail. On the other hand, when a large number of rails are driven into the ground, it is difficult to align the length protruding from the ground surface of each pile with the planned height, so the height above the portion protruding from the ground surface of each pile In some cases, vertical displacement may occur. Such vertical displacement of the piles results in a vertical displacement of the rails or a state where the displaced piles cannot be fixed to the rails. However, it is possible to prevent the above-mentioned horizontal and vertical shifts from occurring by precisely hitting the pile, but in order to accurately perform the pile driving work that is performed using a heavy machine, It takes time and is not appropriate in terms of shortening the construction period.

There may be two pairs of rails provided across the range where the construction is performed. The reason why two pairs of rails are set to two is that when both of the pair of rails are one rail, the cross-sectional area of the column that can be supported by one rail is determined to some extent by the width of the rail. This is because the restriction is severe, but if two rails arranged close to each other are used, a thicker column can be supported by the two rails.
Even in such a case, when trying to support four rails on a straight line using a pile, the same problem as described above occurs. This is because a large number of piles can be displaced in the vertical and horizontal directions.
More specifically, such a problem based on the horizontal and vertical shifts of the pile occurs even if the rail is not for a temporary tent.

  This invention makes it the subject to provide the pile for enabling it to fix a rail horizontally and on a straight line, and its application technique.

In order to solve this problem, the present inventor proposes the following invention.
The present invention is a pile driven into the ground surface in order to support rails laid on a horizontal and straight line at predetermined intervals.
And the pile is configured to be fixable in a state where it is positioned at an arbitrary position in the length direction of the pile body on the pile body which is a ready-made pile driven into the ground surface and the upper end of the pile body. The top surface of the pile body protrudes from the pile body in plan view when viewed in plan, and the rail perpendicular to the length direction of the pile body is fixed to the pile body. And a correction material including a mounting portion having
Such a pile includes a pile body that is a ready-made pile and a correction material. The pile body may be a ready-made pile. For example, the pile body is a known or well-known steel pipe pile.
On the other hand, the pile of this invention is provided with the correction | amendment material. One corrector is used in combination for one pile body. Due to the presence of the correction material, even if at least one of a horizontal shift and a vertical shift occurs when the pile main body is driven into the ground, the shift is absorbed. The reasoning is as follows.
The correction material is configured to be fixable to an upper end of the pile body in a state where the correction material is positioned at an arbitrary position in the length direction of the pile body. In addition, the correction material protrudes in all directions from the pile body when viewed in plan, and a rail perpendicular to the length direction of the pile body is attached to the correction material in a state where it is fixed to the pile body. A mounting portion having a flat surface is provided.
First, the correction material can be attached to the upper end of the pile body at an arbitrary position in the length direction of the pile body. At the upper end of the correction material, there is a mounting part with a horizontal plane to which the rail is attached, but by appropriately positioning the correction material in the vertical direction, the height of the mounting part or the horizontal plane it has The position can be arbitrarily positioned. Thereby, at this time, for example, by adjusting the distance from the upper end of the pile body to the horizontal plane above the attachment portion, the height position of the upper plane of the attachment portion in the correction material is arbitrarily adjusted. be able to. Even if there is some deviation in the height of the upper end of each pile body, it is possible to align the height of the upper plane of the mounting part in each pile by adjusting the above distance appropriately in each pile It becomes.
On the other hand, the horizontal displacement of the pile body is absorbed by the upper surface of the mounting portion extending outward from the cross section of the pile body. If the plane on the upper side of the attachment portion is spread outward from the cross section of the pile main body in plan view, it may be expanded within the cross section of the pile main body, that is, toward the inside of the pile main body. For fixing the rail to the pile, more specifically, to the upper plane of the mounting portion, any method may be used as long as it does not cause movement to the rail pile. Can be done.
Even if a correction material is not used, if the pile body is displaced in the vertical direction, it can be absorbed by cutting the upper side of a large number of pile bodies driven into the ground surface, for example, according to the lowest one. However, since the pile main body is generally a leased product and the pile main body, a part of which is cut, is treated as a defective product, such a response is not appropriate. It is one of the advantages of the present invention that such a problem does not occur.
In addition, a rail may be directly fixed to the plane on an attachment part, and may be attached indirectly. For example, a predetermined member may be attached to the attachment portion, and the rail may be attached to the attachment portion via the predetermined member.

In the pile of the present invention, the mounting portion is a disk or a donut-shaped plate, and when the correction material is fixed to the pile body, the center of the mounting portion that is a disk or a donut-shaped plate is It may be located on the axis of the pile body. If the attachment portion is as described above, the shape of the upper plane of the attachment portion is always the same regardless of the orientation of the correction material relative to the pile body. In other words, when fixing the correction material to the pile body, it is possible to work without worrying about the relative mounting angle between them (the angle around the axis of the pile body). Can be obtained.
The pile of the present invention may include a guided portion that allows the correction material to be translated relative to the pile body while being guided by the pile body near the upper end of the pile body. When such a guided part is present, the plane above the mounting part remains perpendicular to the axis of the pile body, in other words, the plane above the mounting part remains horizontal, Since the correction material can be moved in parallel, the operation of positioning the height position of the correction material with respect to the pile body can be easily performed. This also has the effect of shortening the working time.
As long as the guided portion allows the correction material to be translated relative to the pile main body while being guided by the pile main body in the vicinity of the upper end of the pile main body, the details of the configuration are not limited.
In many cases, the pile body has a cylindrical shape. In such a case, the guided portion corresponds to the outer surface of the pile body and is guided to the outer surface of the pile body, or corresponds to the inner surface of the pile body and is guided to the inner surface of the pile body. A cylindrical shape having an outer surface may be used.

The correction material and the pile body may be made of materials that can be welded to each other, and the correction material may be fixed to the pile body by welding. For example, the above-described cylindrical guided portion may be made of a material that can be welded to the pile body, and the guided portion may be fixed by welding to the pile body.
As described above, in many cases, the pile body has a cylindrical shape. In that case, the attachment portion in the correction material is a donut-shaped plate, and when the correction material is fixed to the pile body, the center of the attachment portion that is a donut-shaped plate is the pile body. The guided portion of the correction material corresponds to the outer surface of the pile body and is guided to the outer surface of the pile body, or the inner surface of the pile body And a cylindrical shape having an outer surface guided by the inner surface of the pile body. In this case, in the cylindrical guided portion, a groove penetrating the inner and outer surfaces is spirally cut in an appropriate range in the vertical direction, and in the vicinity of the upper end of the pile body, The upper end of the pile body is covered with the guided portion while guiding the inner surface of the guided portion to the outer surface of the pile body, or the guided portion while the outer surface of the guided portion is guided to the inner surface of the pile body. When the portion is inserted, the guided portion is aligned with the groove provided in the guided portion at an arbitrary height position of the pile body by rotating the guided portion with respect to the pile body. A hole may be drilled at a possible position. In this case, a nut is screwed into a bolt that penetrates the hole of the pile main body and the groove of the guided portion together, and the pile main body and the attachment are between the head of the bolt and the nut. The correction material may be fixed to the pile body by sandwiching the portion. This is an example in which the correction material can be detachably fixed to the pile body with bolts and nuts. Thus, it becomes possible to reuse a pile main body and a correction | amendment material by enabling both to detachably fix.

The inventor of the present application also proposes the above-described correction material as one aspect of the present invention. The effect of the correction material is equal to the effect of the pile described above.
The correction material as an example in the present invention is as follows.
The correction material is a correction material comprising a pile driven into the ground surface in order to support rails laid on a horizontal and straight line at a predetermined interval in combination with a pile body which is a ready-made pile driven into the ground surface. It is.
The correction material is configured to be fixed to the upper end of the pile main body in a state positioned at an arbitrary position in the length direction of the pile main body, and from the pile main body at least in plan view to the upper end. An attachment portion having a flat surface to which the rail perpendicular to the length direction of the pile main body is attached in a state of protruding in all directions and being fixed to the pile main body.

The inventor of the present application also proposes a rail structure including a pile and a rail using any of the above-described piles as one aspect of the present invention. The effect is almost equal to the effect of the pile described above.
An exemplary rail structure includes a rail that is laid on a horizontal and straight line, a pile body that is a ready-made pile that is driven into the ground surface at predetermined intervals so as to ride on a straight line parallel to the straight line, and the pile body Each upper end is configured to be fixed in a state positioned at an arbitrary position in the length direction of the pile main body, and the upper end protrudes in all directions from the pile main body in plan view. A plurality of correction members including a mounting portion having a flat surface to which the rail perpendicular to the length direction of the pile main body is mounted in a state in which the rail is fixed to the pile main body.
Then, by appropriately positioning the correction material fixed to the pile main body in the length direction with respect to the pile main body, the height of the plane of the mounting portion in all the piles that ride on the straight line parallel to the straight line is increased. The rails are attached to the plane of the attachment portion.
Note that the pile body in such a rail structure is “struck on the ground surface at a predetermined interval so as to ride on a straight line parallel to the straight line”. It means " As described above, it is almost impossible to accurately drive the pile so that the position in the horizontal direction is completely as planned at the construction site. Also, the length of each pile body that protrudes from the ground surface is almost impossible to be completely as planned as already explained, and there is no mention in the above sentence, but it is actually so Should be considered.
According to this rail structure, since the correction | amendment material contained in each pile absorbs the shift | offset | difference of the horizontal direction of a pile and a perpendicular direction, it becomes possible to distribute | arrange a rail horizontally on the planned straight line.
In the rail structure of the present invention, a predetermined member can be attached to the attachment portion, and the rail can be attached to the attachment portion via the predetermined member. I do not care.
In the rail structure of the present invention, the stake rides on two straight lines parallel to the straight line, and on a plurality of straight lines having a predetermined interval orthogonal to the two straight lines and the two straight lines. When the two piles that are struck and are struck so as to ride on one of a plurality of straight lines with a predetermined interval orthogonal to the two straight lines are set as a set of piles In addition, in the mounting portion of the set of piles, both ends of the straddling material having a plane whose upper surface is a horizontal surface are fixed, and the rail is fixed to the upper surface of the straddling material, It may be fixed to the pile via the straddling material. By using the straddling material, it is possible to reliably arrange the rail horizontally on the planned straight line.
When a straddling material is used in the rail structure of the present invention, two rails parallel to the straight line may be fixed to the plane of the straddling material. Two adjacent rails are handled as one set of rails. In this case, another set of rails is formed in parallel and at the same height as the set of rails, and they function as a pair of rails.

The top view including the circumference | surroundings including the target range containing the building used as an example of the old structure before rebuilding in one Embodiment. The perspective view of the object range and building which were shown in FIG. The side view seen from the arrow A direction in FIG. 1 about the ground and underground part of the building shown in FIG. The top view about the same range as FIG. 1 after the old ground part of the building shown in FIG. 1 was demolished. The side view about the same range as FIG. 3 after the old ground part of the building shown in FIG. 1 was demolished. The top view about the same range as FIG. 1 after a foundation rail is arrange | positioned. The side view including a partial perspective view which shows the structure of the pile for supporting a foundation rail. The perspective view of the correction | amendment material contained in the pile shown in FIG. The perspective view which shows the other example of the pile shown in FIG. The perspective view for demonstrating the construction method of the temporary tent which covers the object range shown in FIG. The perspective view for demonstrating the construction method of the temporary tent which covers the object range shown in FIG. The perspective view for demonstrating the construction method of the temporary tent which covers the object range shown in FIG. The perspective view for demonstrating the construction method of the temporary tent which covers the object range shown in FIG. The top view which expands and shows the vicinity of the target range which shows the state where the cast-in-place pile was struck in the specific range among the target ranges shown in FIG. The side view seen from the arrow A direction in FIG. 1 which shows the process in the case of hitting a cast-in-place pile in the specific range of the object range shown in FIG. The side view which shows the same range as FIG. 15 which shows the process in the case of hitting a cast-in-place pile in the specific range of the object ranges shown in FIG. The side view which shows the same range as FIG. 15 which shows the process in the case of hitting a cast-in-place pile in the specific range of the object ranges shown in FIG. The side view which shows the same range as FIG. 15 which shows the state after hitting a cast-in-place pile in the whole range in the specific range among the object ranges shown in FIG. The side view seen from the arrow B direction in FIG. 1 which shows the state after hitting a cast-in-place pile in the whole range in the specific range among the object ranges shown in FIG. The side view which shows the same range as FIG. 19 which shows the state after providing the gantry after becoming the state shown in FIG. The side view which shows the same range as FIG. 19 which shows the state after carrying in a bulldozer in order to form an underground space. The side view which shows the same range as FIG. 19 which shows the state in the middle of the formation of underground space. The side view which shows the same range as FIG. 19 which shows the state after underground space is completed. The side view which shows the same range as FIG. 19 which shows the process for driving a cast-in-place pile to the place outside the specific range in underground space after underground space is completed. The side view which shows the same range as FIG. 19 which shows the state after the process for driving a cast-in-place pile to the place outside the specific range in underground space is complete | finished. The top view which shows the same range as FIG. 14 which shows the state after the process for hitting a cast-in-place pile to the place outside the specific range in underground space is complete | finished. The side view which shows the same range as FIG. 19 for demonstrating the process of constructing the underground part of a new building. The side view which shows the state same as FIG. 19 which shows the state which completed the process of constructing the underground part of a new building. The side view which shows the same range as FIG. 19 for demonstrating the process of building the ground part of a new building. The side view including a partial perspective view of a set of piles and what is attached to them, showing other fixing methods of the foundation rail and piles. The top view which shows the positional relationship of the foundation rail fixed by the method of FIG. 30, a pile, and the pillar of aggregate.

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

In this embodiment, it is a structure built on a certain site, an old structure having a structure underground is dismantled together with the structure, and a structure having a structure underground on the site where the old structure existed The case of building an object will be described.
A temporary tent is used in the process. The rail structure in the present invention is used as the basis of the temporary tent, and the pile in the present invention and the correction material in the present invention are used as a part of the rail structure. However, the application destination of the pile, the correction material, and the rail structure of the present invention is not limited to the foundation of the temporary tent.

1 to 3 show an old structure 10 to be dismantled from now on. 1 is a plan view, FIG. 2 is a perspective view, and FIG. 3 is a side view from the direction of arrow A in FIG.
The old structure 10 is three buildings 11, 12, 13 in this embodiment. Each of the old structures 10 includes an old ground portion 10A located on the ground and an old underground portion 10B located in the basement, which is a structure. Each of the old ground portions 10A is a known or well-known ground portion of the building, and each of the old underground portions 10B is a known or well-known underground portion of the building. The old underground portion 10B is typically a basement or an underground passage.
The buildings 11, 12, and 13 are built in a section surrounded by a road 15 (FIG. 1). A range indicated by X in the section is a range where a later-described building which is a new structure will be built later, and corresponds to a target range in the present invention. A plurality of cast-in-place piles, which will be described later, are struck as needed over the entire area within the target range. Although not limited thereto, the target range X is a horizontally long rectangle that is long in the left-right direction in FIG. 1 in this embodiment. Although not limited to this, in this embodiment, there are three old structures 10 to be demolished for rebuilding, namely, buildings 11, 12, and 13, and a large one as described later on the site. A new structure will be built. This is to rebuild a large building on an adjacent site where multiple small buildings were built, and corresponds to the mode of rebuilding often seen in the redevelopment of the city.
As shown in FIG. 3, an old pile 10 </ b> C that is a pile that supported the old structure 10 exists under the old underground portion 10 </ b> B of the old structure 10. It does not matter whether the old pile 10C is a cast-in-place pile. Generally, the length of a pile of tall or large buildings is longer. Although not limited to this, in this embodiment, the old pile 10C of the largest building 11 is the longest and the old pile 10C of the smallest building 13 is the shortest.

When performing the rebuilding work, first, the old structure 10 is disassembled.
The old structure 10 is disassembled from the old ground portion 10A. The dismantling of the former ground portion 10A can be performed by a conventional construction method. In many cases, the temporary tent described later is not used when dismantling the old ground portion 10A. Even if an attempt is made to build a temporary tent to dismantle the old ground portion 10A of the old structure 10, it is practically necessary to secure a sufficient space to build a temporary tent around the ground portion 10A of the old structure 10. This is because it is almost impossible. Dismantling by the conventional method is, for example, providing a temporary scaffold around the old ground portion 10A of the old structure 10 and dismantling using the watering method.
The debris generated by dismantling the old ground portion 10A is carried out from the target range X to the outside. Such unloading of rubble may be performed by a known or well-known technique.
Thereafter, the entire target range X is leveled. When leveling the target range X, if there is a space in the old underground portion 10B, it is preferable to refill the space. For example, the space in the old underground portion 10B can be backfilled with a floor slab, a concrete recycled crushed stone generated by crushing the old ground portion 10A, or the like.
The state after leveling the target range X is shown in the plan view of FIG. 4 and the side view of FIG.

For some time thereafter, a temporary tent is used.
The temporary tent in this embodiment is constructed as follows.
In this embodiment, in order to construct a temporary tent, two pairs of base rails 110 are arranged so as to sandwich the target range X (FIG. 6). In addition, if the arrangement | positioning of the foundation rail 110 is possible, before the dismantling of the old ground part 10A of the old structure 10 is complete | finished, you may be performed in parallel with the dismantling work of the old ground part 10A. .
The two foundation rails 110 are both long and are arranged so as to be horizontal and parallel to each other. In this embodiment, the two basic rails 110 are slightly longer than the long side of the rectangular target range X, and slightly outside the long side of the target range X. Arranged in a protruding state.
The foundation rail 110 is for constructing a temporary tent on the foundation rail 110, and serves as a foundation for the temporary tent. The lower end of the temporary tent is fixed to the foundation rail 110. This prevents the temporary tent from moving due to, for example, a strong wind. The base rail 110 has such a weight that such an effect can be obtained, and the material is made of metal for reasons such as increasing the weight and requiring rigidity. At least a part of the temporary tent can be moved on the foundation rail 110 in the length direction of the foundation rail 110 as described later.
The foundation rail 110 should just be able to move, guiding a temporary tent on it, and a well-known and well-known thing can be applied to this. As the base rail 110, for example, a rail used as a railroad track can be used for this, and general H steel can be used for this.

By the way, the two foundation rails 110 are fixed to the upper side of the part which protrudes from the ground surface of the pile which is struck from the ground surface and the upper end protrudes from the ground surface in the predetermined several places of the length direction. In addition, this pile differs from the cast-in-place pile mentioned later. The foundation rail 110 should be fixed to such a pile. In order to prevent the temporary tent fixed to the foundation rail 110 from moving, the foundation rail 110 itself needs to be prevented from moving relative to the ground surface. Because there is. The foundation rail 110 is firmly fixed to the ground surface via the pile.
However, it is quite difficult to place the two foundation rails 110 horizontally and parallel to each other as planned. When focusing on one foundation rail 110, as described above, the foundation rail 110 is fixed at a predetermined position in the length direction with respect to a pile driven at a predetermined interval on a straight line when viewed in plan. The
In this case, since it is difficult to hit the pile accurately on a straight line, the pile may be deviated from the planned straight line. Such a horizontal displacement of the piles (a displacement in the length direction of the straight line does not cause a significant problem, but a displacement in the width direction of the straight line causes a problem) A state in which the displaced pile cannot be fixed to the foundation rail 110 occurs. On the other hand, when a large number of foundation rails 110 are driven into the ground, it is difficult to align the length protruding from the ground surface of each pile with the planned height, so the upper side of the portion protruding from the ground surface of each pile There may be a vertical shift in height. Such vertical displacement of the piles may cause a vertical displacement of the foundation rail 110 or a state in which the displaced pile cannot be fixed to the foundation rail 110. However, it is possible to prevent the above-mentioned horizontal and vertical shifts from occurring by precisely hitting the pile, but in order to accurately perform the pile driving work that is performed using a heavy machine, It takes time and is not appropriate in terms of shortening the construction period.
This problem is overcome in this embodiment as follows.

Also in this embodiment, the foundation rail 110 is fixed with respect to the pile 120 as shown in FIG. The pile 120 in this embodiment includes a pile main body 121 that is a general ready-made pile and a correction material 122 attached to the pile main body 121. The pile body 121 is a pile driven vertically downward from the ground surface, and is a cylindrical pile generally called a steel pipe pile, for example. In the case of a steel pipe pile, the pile main body 121 may be a publicly known or well-known one and is made of metal, for example, iron. When it is a steel pipe pile, the pile main body 121 is generally cylindrical. An anchor body 121 </ b> A that extends in the lateral direction is attached to the lower end of the pile body 121 so that the pile body 121 does not come out of the ground. The pile main body 121 is driven into the ground using a known or well-known pile driver for a pile.
As described above, a plurality of pile main bodies 121 driven into the ground are driven on a straight line on which the foundation rail 110 is to be arranged. But the horizontal position of the pile main body 121 does not need to be so accurate, and some horizontal shift | offset | difference is accept | permitted. Moreover, each pile main body 121 is made into the state which some of those upper side protruded from the ground surface somewhat. However, the height of the upper end portion of each pile main body 121 does not need to be aligned so accurately, and a slight vertical shift is allowed.

A correction material 122 as shown in FIGS. 7 and 8 is attached to the upper end of each pile body 121. The correction material 122 absorbs both the horizontal shift and the vertical shift generated in each pile body 121. Due to the presence of the correction material 122, even if at least one of a horizontal shift and a vertical shift is present in the pile body 121, the foundation rail 110 is linear and horizontal with respect to each pile 120. It becomes possible to fix in a state that keeps sex. The correction member 122 can be arbitrarily positioned and fixed to the upper end of the pile body 121 at an appropriate position in the length direction of the pile body 121.
As shown in the perspective view of FIG. 8, the correction member 122 includes a cylindrical cylindrical portion 122A below the correction member 122 and an attachment portion 122B attached to the upper end of the cylindrical portion 122A. The correction material 122 is made of metal, and is made of the same metal as the pile body 121, for example. In this embodiment, the correction | amendment material 122 and the pile main body 121 can be welded mutually, and are made of the raw material which can do it.
The cylindrical portion 122 </ b> A corresponds to an example of the guided portion in the present invention, and is for realizing parallel movement along the axial direction of the pile body 121 with respect to the pile body 121 of the correction material 122. The parallel movement is realized by the cylindrical portion 122A being guided near the upper end of the pile body 121. If this is feasible, the shape of the cylindrical portion 122A is not necessarily cylindrical, regardless of its name.
The cylindrical portion 122 </ b> A in this embodiment is cylindrical and has an inner shape corresponding to the outer shape of the pile main body 121. In general, since the cross-sectional shape in the direction perpendicular to the length direction of the pile main body 121 is circular, the cross-sectional shape of the space inside the cylindrical portion 122A is circular. In the example described here, the inner diameter of the cylindrical portion 122 </ b> A is made substantially equal to the outer diameter of the pile main body 121. Thereby, the cylindrical portion 122 </ b> A can be attached in such a state that the inner surface of the cylinder portion 122 </ b> A is attached to the outer surface of the upper end of the pile main body 121 so as to cover the vicinity of the upper end of the pile main body 121. The outer shape of the cylindrical portion 122A is not limited as long as it is possible, but the outer shape of the cylindrical portion 122A in this embodiment is also cylindrical.
The attachment portion 122B has a flat surface on the top surface. The foundation rail 110 is fixed to such a plane. The attachment portion 122B may have any other shape as long as the upper surface is a plane, but in this embodiment, the attachment portion 122B has a plate shape with the same thickness in all portions. The attachment portion 122B extends in all directions from the central axis of the cylindrical portion 122A toward the outside. The attachment portion 122B in this embodiment is not limited to this, but is perpendicular to the axis of the cylinder portion 122B attached to the upper end of the cylinder portion 122B, and has a donut shape when viewed in plan. It is a board. The radial width of the mounting portion 122B having a donut shape is the same in all portions, but this is not the only case. A hole communicating from the cylindrical portion 122A as shown in FIGS. 7 and 8 may exist at the center of the attachment portion 122B, but the attachment portion 122B is formed in a disc shape and the hole is eliminated. It is also possible. Further, the size of the hole may be different from the hole of the cylindrical portion 122A, for example, by making it smaller than the size of the hole of the cylindrical portion 122A. That is, the plane above the attachment portion 122B needs to be in a state of protruding to the outside from the pile body 121, but is in a state of protruding to the inside of the pile body 121B. May be.
As described above, the correction member 122 covers the upper end of the pile main body 121 by covering the upper end of the pile main body 121 with the cylindrical portion 122A so that the inner surface of the correction main body 121 is attached to the outer surface of the upper end of the pile main body 121. (Fig. 7 (A)). At this time, by adjusting the distance L from the upper end of the pile body 121 to the lower end of the cylindrical portion 122A, the height position of the upper surface of the attachment portion 122B in the correction member 122 can be arbitrarily adjusted. Even if there is a slight deviation in the height of the upper end of each pile 120, the height of the upper surface of the mounting portion 122 </ b> B in each pile 120 can be adjusted by appropriately adjusting the distance L described above. It is possible to align. The adjustable width of the height of the upper surface of the attachment portion 122B in each pile 120 is determined by the length of the cylindrical portion 122A. What is necessary is just to determine the length of 122 A of cylinder parts according to a required adjustment width | variety. The correction material 122 may be fixed to the pile main body 121 by any method as long as the fixing is strong enough not to cause the movement of the foundation rail 110, for example, by welding. Is possible.
On the other hand, the horizontal shift of the pile main body 121 is absorbed by the upper surface of the attachment portion 122B having a spread. In the view shown in FIG. 7A, the foundation rail 110 whose cross section is perpendicular to the length direction is illustrated in a state slightly shifted to the left from the central axis of the pile body 121. Originally, if the pile main body 121 is exactly on the planned straight line, the axis of the pile main body 121 should pass through the center of the foundation rail 110 in the width direction. However, when the pile main body 121 is slightly deviated from the straight line, the center in the width direction of the foundation rail 110 is not somewhat relative to the axis of the pile main body 121 as shown in FIG. Will be. However, even if there is a horizontal shift from the originally planned position at the position of the pile body 121, there is some spread on the upper surface of the mounting portion 122B to which the foundation rail 110 is attached. There is no problem in fixing the rail 110 to the pile 120. The adjustable width of the foundation rail 110 in each pile 120 in the horizontal direction is determined by the shape and size of the mounting portion 122B. The shape and size of the attachment portion 122B may be determined according to the necessary adjustment width. For fixing the foundation rail 110 to the pile 120, more specifically, to the upper surface of the mounting portion 122B, any method may be used as long as the foundation rail 110 does not move with respect to the pile 120. It is possible to do this.
The foundation rail 110 may be directly fixed to the upper surface of the mounting portion 122B, but a predetermined member having a horizontal plane on the base rail 110 is mounted on the correction member 122 of each pile 120. It is also possible to fix the base rail 110 to a plane above a given member. If it carries out like this, the foundation rail 110 will be fixed to the pile 120 via a predetermined member.

In the above-described example, the inner diameter of the cylindrical portion 122A of the correction member 122 is substantially equal to the outer diameter of the pile main body 121, so that the cylindrical portion 122A is in relation to the outer surface of the upper end of the pile main body 121. The inner surface of the pile main body 121 can be attached so that the inner surface of the pile main body 121 is attached (FIG. 7A). Instead, by making the outer diameter of the cylindrical portion 122A of the correction member 122 substantially equal to the inner diameter of the pile main body 121, the cylindrical portion 122A is thereby made to have its outer surface with respect to the inner surface of the upper end of the pile main body 121. It is also possible to make it attach so that it can be attached in a state of being inserted in the vicinity of the upper end of the pile body 121 (FIG. 7B). As described above, the configuration of the cylindrical portion 122A is not particularly limited as long as the correction member 122 is attached to the pile main body 121 by appropriately positioning the position in the vertical direction. Even in the case shown in FIG. 7B, the pile main body 121 and the correction member 122 can be fixed by, for example, welding.
An example in which the correction member 122 and the pile body 121 are fixed by a method other than welding is shown in FIG. If the corrector 122 and the pile main body 121 are fixed so as not to be detachable by welding, the positional relationship between the corrector 122 and the pile main body 121 fixed to each other cannot be corrected twice. Therefore, when the pile main body 121 and the correction material 122 are used at a certain site, it becomes difficult to reuse them at another site. On the other hand, when fixing of the correction material 122 and the pile main body 121 is made detachable, when fixing the foundation rail 110 to the pile 120, the correction material 122 and the pile main body 121 are fixed at a certain site. After the use of the foundation rail 110 is finished, the pile body 121 and the correction material 122 can be reused at another site by releasing the fixation between the pile body 121 and the correction material 122. . In this case, the fixing of the base rail 110 and the correction material 122 should be detachable. As a method of detachably fixing the correction member 122 and the foundation rail 110, a method of detachably fixing the pile 120 and the foundation rail 110 with, for example, bolts and nuts is known or well known. good.
The example shown in FIG. 9 will be described. FIG. 9A is a perspective view showing the vicinity of the upper end portion of the pile main body 121. A hole 121 </ b> B is drilled at an appropriate position of the pile body 121. There are at least one hole 121B, and in this embodiment, there are three holes. FIG. 9B is a diagram showing the correction material 122. This correction material 122 includes a cylindrical portion 122A and an attachment portion 122B, as shown in FIG. The cylindrical portion 122A is provided with a helical attachment groove 122A1 cut from the lower end to the upper end of the cylindrical portion 122A. The mounting groove 122A1 extends to the lower end of the cylindrical portion 122A. In the example shown in FIG. 9, by rotating the cylindrical portion 122 </ b> A up and down, the positions of the mounting groove 122 </ b> A <b> 1 of the cylindrical portion 122 </ b> A and the hole 121 </ b> B drilled in the pile main body 121 are changed with respect to the pile main body 121. Thus, it is possible to align the correction material 122 with an arbitrary height. In that state, from the inside or the outside of the cylindrical portion 122A, the three holes 121B and the mounting groove 122A1 overlapping with the holes 121B are respectively penetrated together with bolts 123A, and the nuts 123B are screwed into the bolts 123A. The cylindrical portion 122A and the pile main body 121 are clamped by the head of the bolt 123A and the nut 123B (FIG. 9C). Thereby, it becomes possible to fix the correction material 122 to the pile main body 121 in a state where the height position with respect to the pile main body 121 is appropriately positioned. As is well known, a washer 123C can be used for clamping the cylindrical portion 122A and the pile main body 121 by the bolt 123A and the nut 123B.
In the example shown in FIG. 9, the spiral mounting groove 122A1 provided in the cylindrical portion 122A is a series. However, if the mounting groove 122A1 is a series, the strength of the cylindrical portion 122A may be affected. On the other hand, the mounting groove 122A1 does not function except for a portion penetrating the bolt 123A. Therefore, it is possible to leave the wall of the cylindrical portion 122A as it is without providing the mounting groove 122A1 in the portion of the mounting groove 122A1 that is not planned to penetrate the bolt 123A from the beginning, in other words, the mounting groove 122A1 can be divided. is there. For example, in the example shown in FIG. 9, since the cylindrical portion 122A and the pile main body 121 are penetrated by three bolts 123A, the mounting groove 122A1 is divided into three, and two places between them. It is possible to leave the wall of the cylindrical portion 122A. By doing so, it is possible to realize detachable fixation between the cylinder portion 122A and the pile body 121 by the method as described above, while suppressing the influence on the strength of the cylinder portion 122A.

Next, the two foundation rails 110 are fixed to the piles 120 arranged on the two straight lines, respectively. Although the foundation rail 110 is long, it does not have to be one, and may be constituted by arranging a plurality of members constituting the foundation rail 110 on the same straight line as is well known or well known.
A temporary tent is provided using these two foundation rails 110. The temporary tent is not limited to this, but in this embodiment, the temporary tent is provided as shown in FIGS.
In this embodiment, the temporary tent 200 (see FIG. 13) is configured by combining a plurality of divided tents 210. The divided tent (see FIGS. 10 to 12) is a part of the temporary tent 200. As shown in FIG. 10 and the like, the divided tent 210 includes an aggregate 220 and a sheet 230 stretched between the aggregates 220.
The aggregate 220 serves as a framework of the temporary tent 200 and supports the sheet 230 that covers the temporary tent 200. The structure of the aggregate 220 may be the same as a known or known one. The aggregate 220 in this embodiment is perpendicular to the foundation rail 110 when viewed in plan, and is arranged with a predetermined interval. Although not limited to this, the interval between the aggregates 220 is constant in this embodiment, and the aggregates 220 are connected to each other by members (not shown) to maintain the constant interval. It is supposed to be. In this embodiment, the number of aggregates 220 included in one divided tent 210 is three, but this is not limited thereto. The divided tent 210 forms the temporary tent 200 by combining them after moving on the base rail 110 as will be described later. However, if the number of aggregates 220 included in the divided tent 200 is large, the divided tent 210 is divided. Since the number of times of movement of 210 can be reduced, the work burden and work time relating to the movement of the divided tent 210 are reduced. However, since the weight of the divided tent 210 is increased by increasing the number of aggregates 220 included in the divided tent 210, the size of the divided tent 210 or the number of aggregates 220 included in the divided tent 210 can be moved. It is limited by the weight of the divided tent 210 and is also limited by the size of the assembly place of the divided tent 210 assembled as described later.
The aggregate 220 includes a column 221 extending in the vertical direction and a beam 222 supported by the column 221. Both the column 221 and the beam 222 are rod-shaped, but need not be configured by a single rod-shaped body, and may be configured by combining a plurality of members, for example, in a truss structure. The beam 222 in this embodiment constitutes the roof of the temporary tent 200, and the two are connected with an inclination so that the center is higher. As a result, the temporary tent 200 has a gable roof as shown in FIG. 13, but the roof structure of the temporary tent 200 is not limited to this. The temporary tent 200 is capable of covering the entire target range X, and it is necessary that a heavy machine (for example, a crane truck) described later can work inside the target range X. As for the size of the temporary tent 200, for example, the long side may exceed 100 m, and the height may exceed 50 m.

The sheet 230 may be, for example, a resin sheet or a sheet in which at least one surface of a woven or knitted fabric made of fibers is coated with a resin. Examples of the resin constituting the sheet 230 are vinyl chloride resin, polyethylene, and the like, and the thickness thereof is, for example, 0.5 mm to 2.0 mm. The sheet 230 can be wound or folded. In the present embodiment, both of the sheets 230 are possible, and at least the sheet 230 is flexible enough to be bent along the aggregate 220.
In this embodiment, the sheet 230 is a long rectangle. The width of the sheet 230 is the same as or slightly longer than the interval between the adjacent aggregates 220. The length of the sheet 230 in the longitudinal direction corresponds to the length of one aggregate 220, that is, the length of the two columns 221 and the two beams 222 included in one aggregate 220. Has been. Of course, the sheet 230 may be formed by bonding a plurality of sheet materials by thermal fusion or the like.
By fixing both ends in the width direction of the sheet 230 along the two adjacent aggregates 220, the sheet 230 is stretched between the two adjacent aggregates 220. The method of fixing the sheet 230 and the aggregate 220 may be a known or well-known technique. The sheet 230 preferably has a certain degree of translucency in order to maintain the brightness in the temporary tent 200, and sound based on work performed in the temporary tent 200 leaks out of the temporary tent 200. In order to prevent this, it is preferable to have a certain level of sound insulation. It is possible to make the sheet 230 have a double structure mainly for the purpose of improving the sound insulation. In selecting the sheet 230, necessary functions such as weather resistance are taken into consideration.

In this embodiment, the split tent 210 is assembled on one end of the foundation rail 110. A heavy machine, for example, a crane, necessary for assembling the divided tent 210 is disposed near one end of the foundation rail 110.
In this embodiment, both the column 221 and the beam 222 are configured by assembling a number of members in a truss shape. Two pillars 221 of each aggregate 220 are assembled on one end of the two foundation rails 110. Next, the base ends of the two beams 222 are connected to the upper ends of both columns 221, the beams 222 are extended with an upward inclination toward the center of the foundation rail 110, and the tips of the beams 222 are connected to each other. . Thereby, the aggregate 220 is completed. This operation is performed on the three aggregates 220.
Next, the aggregates 220 are connected by the above-described members (not shown) so that the intervals between the aggregates 220 are kept constant. Then, the sheet 230 is stretched between two adjacent aggregates 220.
Thus, the 1st division | segmentation tent 210 is constructed | assembled on the one end side of the foundation rail 110 (FIG. 10).

Next, the first divided tent 210 is slid and moved to the other end side of the foundation rail 110 as viewed in FIG. A method of moving the divided tent 210 can be a known or well-known technique, and power used for moving the divided tent 210 on the base rail 110 can be appropriately selected. In this embodiment, although not limited to this, in this embodiment, a jack spindle driven by hydraulic pressure is used as power, for example, the main body of the jack spindle is fixed at an appropriate position of the foundation rail 110, and the divided tent 210 is It is fixed to a cylinder that translates in the length direction of the foundation rail 110 with respect to the main body of the jack spindle, and by repeating the operation of translating the cylinder with respect to the main body, a distance corresponding to the moving distance of the cylinder is obtained. This is done by moving the split tent 210.
As a result, the divided tent 210 is moved to the other end side of the foundation rail 110 (FIG. 11).

Next, similarly to the first divided tent 210, the second divided tent 210 is constructed on one end side of the foundation rail 110 through the same process as the first divided tent 210. Note that the construction of the second divided tent 210 may be started during the movement of the first divided tent 210, and this is the same thereafter.
The constructed second split tent 210 is moved on the base rail 110 toward the other end side of the base rail 110 in the same manner as the first split tent 210.
The second divided tent 210 is connected to the first divided tent 210 near the other end of the foundation rail 110. There are two methods for connecting the second divided tent 210 and the first divided tent 210, and either one of them is adopted.
In the first method, among the aggregates 220 of the first divided tent 210, the rearmost one in the traveling direction of the divided tent 210 and the aggregate 220 of the second divided tent 210, The first thing considered in the traveling direction of the divided tent 210 is connected as it is. In that case, the aggregate 220 of the connected portion is twice as thick as the other aggregates 220 in view of the traveling direction of the divided tent 210. If you dislike it, among the aggregates 220 of each divided tent 210, the thickness considered in the moving direction of the divided tent 210 in the moving direction of the divided tent 210 in the moving direction of the divided tent 210 is the other. It can be used as half of the aggregate 220. By doing so, it becomes possible to make the thickness of the aggregate 220 of the connected part the same as the thickness of the aggregate 220 of the other part.
In the second method, first, among the aggregates 220 of the first divided tent 210, the rearmost one considering the traveling direction of the divided tent 210 and the aggregate 220 of the second divided tent 210. Among them, the second divided tent 210 is advanced until there is an interval corresponding to the distance between the aggregates 220 in each divided tent 210 with respect to the previous one in the traveling direction of the divided tent 210. Then, among the aggregates 220 of the first divided tent 210, the rearmost one in the traveling direction of the divided tent 210 and the divided tent 210 among the aggregates 220 of the second divided tent 210. The sheet 230 is stretched in the same manner as in the case where the divided tent 210 is formed between the first and the previous ones. In this case, among the aggregates 220 of the first divided tent 210, the rearmost one in the traveling direction of the divided tent 210 and the aggregate 220 of the second divided tent 210 among the aggregates 220 of the second divided tent 210. You may arrange | position the member mentioned above for keeping the distance of these two aggregates constant between the ones considered in the advancing direction.
Whichever method is used, the second divided tent 210 is thereby connected to the first divided tent 210.

Similarly, a third divided tent 210, a fourth divided tent 210, a fifth divided tent 210,... Are constructed on one end side of the foundation rail 110, and the foundation rail 110 is placed on the other side of the foundation rail 110. After being sent to the end side, it is connected to the divided tent 210 immediately before (FIG. 11).
The last split tent 210 may not be sent over the base rail 110. Eventually, the temporary tent 200 extending over substantially the entire length of the foundation rail 110 is substantially completed (FIG. 12).
In this state, the front and rear of the temporary tent 200 when viewed in the moving direction of the divided tent 210 are open. In this embodiment, the open portion is covered with a pentagonal sheet 240, thereby completing the temporary tent 200 that completely covers the target range X (FIG. 13).
The sheet 240 can be different from the sheet 230 only in shape. The method of fixing the seat 240 to the front and rear aggregates 220 of the temporary tent 200 may be in accordance with known or well-known techniques. The seat 240 is provided with at least one openable / closable door 241 as necessary. The door 241 is for a heavy machine or an operator to enter and exit the temporary tent 200, and the configuration thereof may be in accordance with a known or well-known technique. Note that the timing of tensioning the sheet 240 may not be after the temporary tent 200 is in the state shown in FIG. For example, the seat 240 may already be stretched when the first divided tent 210 is assembled on one end side of the foundation rail 110.
Note that when the pentagonal sheet 240 is stretched on the temporary tent 200, pillars and beams (not shown) can be appropriately provided in the pentagonal openings before and after the temporary tent. In this case, the lower end of the column should be fixed to some foundation. For example, it is possible to fix the lower end of the column on the foundation rail 110 arranged along the short side of the target range X fixed to the pile 120 as described above. In this case, after the temporary tent 200 is in the state shown in FIG. 12, it is possible to adopt a normal method in which pillars and beams are assembled and then the seat 240 is attached.

As described above, the temporary tent 200 is constructed on the foundation rail 110 serving as a foundation. More specifically, the lower end of the column 221 constituting the aggregate 220 is placed on the foundation rail 110.
As described above, the foundation rails 110 are arranged one by one outside the two long sides of the target range X. But when the width | variety of the foundation rail 110 is small, a restriction | limiting may arise also in the thickness of the pillar 221 which can be supported by each foundation rail 110. FIG. Then, there is a possibility that the thickness and strength of the aggregate 220 may be limited.
In order to eliminate such a restriction, the base rails 110 arranged on the outer sides of the two long sides of the target range X can be set in pairs. In this case, as shown in FIG. 30 and FIG. 31, the pile 120 is struck on a pair of two virtual straight lines (first straight lines) parallel to the long side of the target range X. A large number of piles 120 are ideally at intersections where a straight line (second straight line) that is perpendicular to any one of the two first straight lines, for example, and the two first straight lines intersect. Be hit. Of the multiple piles 120, the piles 120 located on the common second straight line are one set of piles 120. In addition, the pile 120 in this case is the same as the pile 120 explained in full detail also including how to use it.
And the straddling material 150 as shown in FIG. The straddling material 150 may be a sturdy member that has a length that can be passed over a set of piles 120 and that can form a flat surface thereon. The straddling material 150 is, for example, H steel. If H steel is used so that the letter H is laid down, a flat surface is formed on it.
In the above-described example, the foundation rail 110 is fixed to the upper surface of the attachment portion 122B included in the correction material 122 that forms part of the pile 120. In this example, the straddling material fixed on the attachment portion 122B of the pile 120 Two foundation rails 110 are attached to the upper surface of 150 in parallel. That is, in this example, the foundation rail 110 is indirectly fixed to the pile 120 via the straddling material 150.
What is important here is that the upper surface of the straddling material 150 is kept horizontal, and two rails can be accommodated between the length of the straddling material 150 (the length in the second linear direction) when viewed in plan. That is.
As described above, the multiple piles 120 are ideally hit at intersections where the two first straight lines and the multiple second straight lines intersect. However, the position of each pile 120 may be shifted in both the first linear direction and the second linear direction. When the pile 120 is displaced in the first linear direction, the straddling material 150 passed over the pair of piles 120 is not orthogonal to the first straight line. If it does so, it may become impossible to store two rails between the lengths of the straddling material 150 in a plan view. When the pile 120 is displaced in the second linear direction, particularly when the pile 120 is displaced outward from the two first straight lines, the straddling material 150 may not be fixed to the pair of piles 120. Such a shift in the first linear direction and the second linear direction is absorbed by the spread of the attachment portion 122 </ b> B included in the correction member 122 that forms part of the pile 120. That is, the straddling material 150 can be fixed to a predetermined position so as to be orthogonal to the first straight line with respect to the set of piles 120.
Moreover, the position of the upper end of the pile main body 121 in many piles 120, ie, the length which protruded from the ground surface of the pile main body 121, may differ for every pile main body 121. FIG. If it does so, there exists a possibility that the upper surface of the straddling material 150 passed with respect to 1 set of piles 120 may become unable to maintain horizontal. Moreover, even if the height of one set of piles 120 is aligned, even if the top surface of the straddling material 150 passed over all the sets of piles 120 is horizontal, the heights of all the piles 120 are aligned. Otherwise, a situation may occur in which the horizontal upper surfaces of the straddling members 150 are not aligned. In that case, the foundation rail 110 fixed to the upper surface of the straddling material 150 cannot be kept horizontal, or if it is bad, the foundation rail 110 cannot be fixed to the upper surface of the straddling material 150. Such a vertical shift of the pile body 121 can be absorbed by adjusting the height position of the correction member 122 relative to the pile body 121.
In this way, two foundation rails 110 are arranged on the outer sides of the two long sides of the target range X. If two adjacent base rails 110 are referred to as a set of base rails 110, the set of base rails 110 are both horizontal, straight, and parallel to each other.
The column 221 of the aggregate 220 is fixed on the set of base rails 110. What is indicated by the reference numerals of four 221A shown in FIG. 31 is a cross section of the column body 221A constituting one column 221. The column 221A is a steel frame, for example, and extends in the vertical direction. Although not limited thereto, the column body 221A in this embodiment is located on the foundation rail 110 and located on the apex of a predetermined square when viewed in plan. The column 221 in this case is configured by appropriately fixing, for example, a beam-shaped reinforcing member that forms a truss structure between the four vertical columns 221A. In that case, the beam 222 is also usually formed of a truss structure as well.
The number of base rails 110 fixed on a number of straddling members 150 arranged in parallel is two in the above-described example, but this may be one if necessary, or three or more. It can also be.

Next, a pile foundation for a new structure built by rebuilding is constructed. The new structure is a building built in the target range X, as will be described later. The pile foundation for one building is a cast-in-place pile.
As shown in FIG. 14, the cast-in-place pile 20 </ b> C hit here is hit only within a specific range Y that is a part of the target range X. FIG. 14 is a plan view of the target range X, but the temporary tent 200 is not shown. The specific range Y is a range covered by a gantry described later, in other words, a range located on the lower side of the gantry.
With reference to FIGS. 15 to 19, a specific method of placing the cast-in-place pile 20 </ b> C will be described. In addition, what is necessary is just to follow the well-known or well-known technique how to place the cast-in-place pile 20C. In addition to driving the cast-in-place pile 20C in the specific range Y this time, a scene of hitting the cast-in-place pile 20C once again appears later. 15 to 18 are side views of the target range X including the underground as seen from the direction indicated by the arrow indicated by A in FIG. FIG. 19 is a side view of the target range X including the underground as seen from the direction indicated by the arrow indicated by B in FIG. 15 to 18 and FIG. 19 are all schematic, and for convenience of drawing, FIG. 14 lacks accuracy particularly with respect to the number of cast-in-place piles 20C.
As shown in FIG. 15, first, the pile driving machine 300 is placed at a predetermined position on the leveled surface corresponding to the position where the cast-in-place pile 20 </ b> C in the specific range Y should be hit in the target range X. The pile driver 300 has a function of making a hole vertically toward the basement and a function of pouring concrete. These functions may be assigned to a plurality of devices, and in that case, the pile driving machine 300 is constituted by a plurality of devices.
Then, the hole 301 is dug in the vertical direction by the pile driver 300. If the hole 301 interferes with the old underground part 10B of the old structure 10 or the old pile 10C, the hole 301 is dug toward the underground while penetrating them. The hole 301 is dug up to a position where the strength sufficient to support the building where the cast-in-place pile 20C is built later is obtained. In general, the hole 301 is often dug until reaching a hard ground. It is also possible to make the diameter near the bottom of the hole 301 larger than the part above it.
Next, in the hole 301, a metal cage, generally made of a reinforcing bar (not shown), is placed on the inner wall of the hole 301. The car extends from the bottom of the hole 301 to a predetermined height. Then, liquid concrete is poured into the hole 301 from the pile driving machine 300. The concrete fills from the bottom of the hole 301 to the upper end of the car. When the concrete hardens, it becomes a cast-in-place pile 20C (FIG. 16). A cage | basket | car becomes a reinforcing bar which guarantees the intensity | strength in the cast-in-place pile 20C. When the diameter near the bottom of the hole 301 is larger than the portion above the hole 301, the cast-in-place pile 20 becomes a bottom-expanded pile.
Next, the pile driver 300 is moved to another place, and the hole 301 is similarly drilled. And like the above-mentioned case, a cast-in-place pile 20C is made by putting a cage into the hole 301, pouring concrete into the hole 301 and hardening it (FIG. 17).
By repeating the above, the cast-in-place pile 20C is struck over the entire range of the specific range Y as shown in FIGS. In addition, in this embodiment, although the depth (height position) of the lower end of the cast-in-place pile 20C shall be equal, this is not this limitation. The depth of the lower end of each cast-in-place pile 20C is determined from the viewpoint of whether each cast-in-place pile 20C has sufficient strength to support a building to be built later. Moreover, in this embodiment, although the depth (height position) of the upper end of the cast-in-place pile 20C shall be equal, this is not this limitation, either. The depth of the upper end of each cast-in-place pile 20C is the height corresponding to the lower surface of the portion where each cast-in-place pile 20C is present in an underground part to be described later of a building that will be made later. As a result, the cast-in-place pile 20C supports the underground part of the building as a structure from below.
In addition, in a general cast-in-place pile method, when the upper end of the cast-in-place pile is underground, the upper part of the cast-in-place pile is usually backfilled. Since this portion is removed together with the surrounding earth and sand as will be described later, there is no need to perform such backfilling.
In this example, there is one pile driving machine 300, and the cast-in-place piles 20C are driven one by one, but a plurality of cast-in-place piles 20C are simultaneously used in parallel by using a plurality of pile-driving machines 300. Of course, it is possible to strike at the same time. Of course, it is better if you want to shorten the construction period.
Moreover, the operation | work which strikes the cast-in-place pile 20 in the specific range Y here is performed on the ground. Such work is not necessarily performed after the temporary tent 200 is completed. Before the temporary tent 200 is made, or in parallel with the operation of constructing the temporary tent 200, an operation of hitting the cast-in-place pile 20 in the specific range Y may be performed. In particular, in parallel with the operation of constructing the temporary tent 200, the operation of shortening the construction period is great when the operation of driving the cast-in-place pile 20 in the specific range Y is performed. In addition, the specific range Y is not limited to the range below the gantry described later, and the specific range Y can be determined as a range in which it is difficult to hit the cast-in-place pile 20 from the bottom of the underground space described later. .

The subsequent operation will be described with reference to FIGS. Among these, the drawing method of FIG. 26 is based on FIG. 14, and the drawing method of other figures is based on FIG.
When the cast-in-place pile 20C is struck in the entire specific range Y as described above, the gantry 410 is then installed (FIG. 20). The gantry 410 is a pedestal on which heavy machinery, vehicles, and workers ride and perform work. The gantry 410 needs to be strong and wide enough to do so. The gantry 410 in this embodiment is plate-shaped. The gantry 410 may be only when it is first constructed, or may include the minimum upper portion of the support described later. The gantry 410 covers the specific range Y described above. The specific range Y in this embodiment is rectangular as shown in FIG. 14, but this is not necessarily limited to this, and the length of the specific range Y covers the entire length of the target range X in the longitudinal direction. There is no need. However, a part of the gantry 410 needs to be in contact with a part of the outer edge of the target range X so that a vehicle or the like can enter the gantry 410 from outside the target range X. For example, in this embodiment, it is convenient to contact the gantry 410 and the edge of the target range X at a portion where the door 241 of the temporary tent 200 is located, but this embodiment is not limited thereto. So it is.

When the gantry 410 is constructed on the leveled surface, the entire target range X is dug down to form an underground space. When the excavation of the target range X is started, the temporary tent 200 is completed. The work performed in the temporary tent 200 including the excavation of the target range X can be performed continuously for 24 hours every day, for example, in three turns if the soundproofing performance of the temporary tent 200 and the surrounding environment permit. Moreover, since the work in the temporary tent 200 can avoid rain by the temporary tent 200, so-called dry construction can also be executed. For dug down the target range X, a predetermined heavy machine is used. In this embodiment, the heavy machinery used for digging down the target range X is not limited to this, but is preferably a plurality of bulldozers 510 (FIGS. 21 and 22). Other heavy equipment such as a power shovel may be used for this work.
When the entire target range X is dug down by the bulldozer 510, a space appears by removing earth and sand. This is the underground space S. When the underground space S is formed, if the old underground portion 10B of the old structure 10 and the old pile 10C exist there, they are destroyed and removed together with the earth and sand. Since it is possible to remove the old structure 10B and the old pile 10C together with the earth and sand, the labor and time spent for this work are not so great. The earth and sand, the destroyed old underground part 10B and the old pile 10C are removed from the underground space S. In this embodiment, this is done by pulling up earth and sand to the top of the gantry 410 by a known or well-known earth remover 520 arranged at the bottom of the underground space S that appears. The earth and sand pulled up on the gantry 410 by the earth remover 520 is reloaded on the loading platform of the dump truck 530 placed on the gantry 410, for example. The dump truck 530 runs on the gantry 410, exits from the door 241 of the temporary tent 200, and runs to throw away earth and sand at a predetermined place. In this way, by using the gantry 410, it becomes easy to discharge earth and sand from the underground space S to an appropriate place outside the target range X. Such earth and sand can be discharged not only in the daytime but also at night. Since it is generally unnecessary to consider vehicle traffic at night, the dump truck 530 can be traveled at a distance longer than usual as planned, and it is also easy to collect many dump trucks 530. It is useful for shortening the construction period. If it is necessary to separate the earth and sand from the destroyed old underground portion 10B and the old pile 10C, it will be easy to carry out outside the target range X, but this is not necessarily the case.
When the bottom of the underground space S is dug down, the gantry 410 naturally needs support. When the underground space S is dug down, a support body 420 is provided under the gantry 410. The support 420 may have any configuration as long as it can support the gantry 410 from below. For example, the support 420 can be configured by appropriately combining columns and beams. However, in order to reduce the number of cast-in-place piles 20C that need to be dug deeply and hit, the range of the specific range Y should be narrowed. From that viewpoint, the support 420 is a plan view. It is preferable that it exists only in a range hidden by the gantry 410. This is the case in this embodiment. The lower end of the support body 420 is in contact with, for example, the bottom of the underground space S. When the bottom of the underground space S is lowered downward, the length of the support 420 is extended downward. By doing in this way, the position of the gantry 410 does not move from the initially provided position.
When constructing the underground space S, the side surface of the underground space S is vertical, for example. The depth of the underground space S may eventually exceed 50 m, for example, and if no measures are taken, the side surface of the underground space S may collapse. In order to protect the worker who performs work in the underground space S from such danger, in this embodiment, although not limited to this, the side surface of the underground space S is reinforced by the sheet pile 430. The sheet pile 430 is configured by driving vertically elongated rectangular plates in parallel along the side surface of the underground space S. The sheet pile 430 may be a still water continuous wall or SMW (Soil Mixing Wall). In these methods, a concrete plate is formed in the ground by placing liquid concrete in the ground and then hardening it, instead of driving the plate into the ground. For example, the sheet pile 430 covers the entire surface of the underground space S, and its lower end extends to a position deeper than the bottom of the finally formed underground space S. The sheet pile 430 has a force to push the sheet pile 430 inward from the outside toward the underground space S side, but in order to allow the sheet pile 430 to resist the force, A known earth anchor 440 may be provided outside. In this embodiment, for example, as shown in FIG. The earth anchor 440 applies an outward force and a downward force to the sheet pile 430. Such force is applied to a plurality of locations in the vertical direction of the sheet pile 430. The sheet pile 430 may be constructed before the start of excavation of the target range X for forming the underground space S, and after the excavation of the target range X is started, the side surface of the underground space S is not expected to collapse. It may be constructed at an appropriate timing.
As is well known or known, the ground anchor 440 is installed in order from the upper side as the underground space S is dug downward.

And underground space S is dug to the planned depth. The planned depth of the bottom of the underground space S is the depth at which the upper end of the cast-in-place pile 20C hit in the specific range Y and the height position thereof are aligned, or the height of the cast-in-place pile 20C above the upper end of the cast-in-place pile 20C. Is a somewhat higher depth. In this embodiment, the bottom of the underground space S has a depth at which the upper end of the cast-in-place pile 20C struck in the specific range Y and the height position thereof are aligned (FIG. 23). In addition, the depth of the bottom of underground space S does not necessarily need to be lower than the depth in which old underground part 10B and old pile 10C exist.
Next, a cast-in-place pile 20C is newly struck at the bottom of the underground space S. The newly-placed cast-in-place 20C is struck in a range excluding the specific range Y in the target range X in a plan view. The cast-in-place pile 20C hit this time is hit from the bottom of the underground space S, not from the ground surface.
In order to hit the cast-in-place pile 20C at the bottom of the underground space S, the same pile driver 300 as described above is lowered to the bottom of the underground space S. The pile driver 300 may be one or plural. For example, the pile driving machine 300 is lowered from the top of the gantry 410 to the bottom of the underground space S by a crane 540 placed on the gantry 410 (FIG. 24).
In this case, the way of placing the cast-in-place pile 20C outside the specific range Y is the same as the way of placing the cast-in-place pile 20C within the specific range Y described above. A hole 301 (FIG. 24) is dug, a cage (not shown) is put therein, liquid concrete is poured into the hole 301, and it is hardened. Thereby, the cast-in-place pile 20C is struck. The cast-in-place pile 20C is struck as necessary over the entire area within the target range X outside the specific range Y when the bottom of the underground space S is viewed in plan (FIGS. 25 and 26). Here, the vertical length of the hole 301 dug for hitting the cast-in-place pile 20C is shorter than the vertical length of the hole 301 dug in order to hit the cast-in-place pile 20C within the specific range Y, When digging the hole 301, the old underground portion 10B and the old pile 10C do not obstruct the digging of the hole 301 or are few. Therefore, the operation of hitting one cast-in-place pile 20C outside the specific range Y takes much less time than the work of hitting the single cast-in-place pile 20C within the specific range Y. Therefore, in combination with the fact that the number of cast-in-place piles 20C struck outside the specific range Y is generally much larger than the number of cast-in-place piles 20C struck within the specific range Y, The overall time required to strike will be saved significantly.
In this embodiment, the height positions of the lower ends of the plurality of cast-in-place piles 20C struck outside the specific range Y are the same as the height positions of the lower ends of the plurality of cast-in-place piles 20C struck within the specific range Y. ing. However, this is not the case for the same reason as in the case of each cast-in-place pile 20C that is struck within the specific range Y. Further, in this embodiment, the height positions of the upper ends of the plurality of cast-in-place piles 20C struck outside the specific range Y are the height positions of the upper ends of the multiple cast-in-place piles 20C struck within the specific range Y. It's all the same. However, this is not the case for the same reason as in the case of each cast-in-place pile 20C that is struck within the specific range Y.

In this way, the necessary cast-in-place pile 20C is struck over the entire target range X in plan view.
When the cast-in-place pile 20C is struck, next, an underground portion 20B that is an underground structure of a new building is constructed (FIG. 27).
In order to construct the underground portion 20B, for example, a heavy machine placed on the gantry 410 is used. This heavy machine is, for example, a crane or a crane truck. In this embodiment, it is assumed that the heavy machine is a crane vehicle 540. The underground portion 20B is moved upward in order from the bottom of the underground space S by lowering the material (not shown) carried on the gantry 410 by a dump truck (not shown) to the inside of the underground space S by the crane truck 540, for example. Will be built for. The underground portion 20B has a known or well-known structure such as a pillar, a wall, or a floor, and is divided into a plurality of floors as necessary. Of course, an operator may get down to work in the underground space S. The bottom of the underground portion 20B is supported by the upper end of the cast-in-place pile 20C. Thereby, the underground part 20B is supported by the cast-in-place pile 20C from below.
When the underground portion 20B is constructed in the underground space S, the underground portion 20B may interfere with the support body 420 of the gantry 410. In that case, the support body 420 that interferes with the underground portion 20B may be removed, and the removed support body 420 immediately above may be fixed to the underground portion 20B. The removed support body 420 can be lifted onto the gantry 410 by, for example, a crane truck 540, and the support body 420 lifted onto the gantry 410 can be lifted by, for example, a dump truck (not shown). Just carry it out. Further, as the underground portion 20B is constructed, the earth anchor 440 is removed in order from the lower one.
In addition, you may perform the cleaning of the support body 420 of the gantry 410 as follows. In this case, the structure of the support 420 is slightly different from that described so far. In this case, the support body 420 includes a column extending in the vertical direction and a beam connecting the columns in a reinforcing manner. First, in the same manner as when the cast-in-place pile 20C is driven from the ground surface to the specific range Y, a pillar is driven from the ground surface. This operation is performed simultaneously with or before or after the operation of driving the cast-in-place pile 20C into the specific range Y. The lower end of the column reaches at least a deeper place than the bottom of the underground space S, and reaches a depth at which the gantry can be stably supported by the support 420. For example, the support body 420 is arranged so that the lower end of the cast-in-place pile 20C hit in the specific range Y and the lower end thereof are aligned. The gantry 410 is installed on the pillar thus provided. Thereafter, as described above, the target range X is dug downward to form the underground space S. As the underground space S is dug, the above-described pillars that are part of the support 420 are gradually exposed from above. As the length of the exposed column becomes longer, the strength of the column becomes uneasy. Therefore, the beam is appropriately fixed to the exposed column. This work is appropriately performed while digging up the underground space S, and a sufficient number of beams are provided on the pillar. As a result, the gantry 410 and the support body 420 existing in the underground space S are the same as those shown in FIGS. 24 and 25 except that the lower end of the column is below the bottom of the underground space S. .
Also in this case, as described above, in the underground space S, the underground portion 20B is constructed from the lower side to the upper side. In this case, the support body 420 of the gantry 410 that interferes with the underground portion 20B is not removed. Even if the gantry support 420 is present, the underground portion 20B is constructed regardless of this. The subterranean portion is, roughly speaking, made of steel and cast concrete that is hardened. The support 420 is made in advance at a position where it does not interfere with the steel frame, and is partially embedded in the concrete. In the underground part 20B, for example, there is a space that becomes a corridor and a living room, a part of the support body 420 is embedded in the underground part 20B, and the remaining part of the support body 420 is exposed in the space. become. Then, at some timing, for example, at an appropriate timing after the underground portion 20B is completed, the portion of the support body 420 embedded in the underground portion 20B is left as it is and exposed to the space in the underground portion 20B. Remove only the part you are doing. Then, the cross section of the pillar or beam of the support 420 is exposed on the wall, ceiling, etc. of the underground portion 20B. If such an exposed pillar or beam cross section is an aesthetic problem, the problem of aesthetics can be solved by painting from above or by placing a wallpaper. In this way, the gantry 410 and the support 420 can be cleaned.
The work is performed as described above, and the underground portion 20B is completed in the underground space S (FIG. 28). All operations from the start of the formation of the underground space S up to here are performed in the temporary tent 200.

When the underground portion 20B is completed, the temporary tent 200 is removed. Moreover, if the sheet pile 430 becomes unnecessary by refilling the space between the sheet pile 430 and the underground portion 20B, the sheet pile 430 may be removed. The sheet pile 430 may be left. Moreover, if the sheet pile 430 becomes unnecessary by refilling the space between the sheet pile 430 and the underground portion 20B, the sheet pile 430 and the earth anchor 440 may be removed. Along with the temporary tent 200, the foundation rail 110 and the ready-made pile 120 may be removed.
The removal of the temporary tent 200 or the like may be performed by a known or well-known technique.
After removing the temporary tent 200 and other unnecessary objects, a ground portion (not shown) of the structure is constructed. The above-ground part of the structure can be constructed by a method similar to the conventional method.
For example, the above-described ground portion may be formed using a tower crane 550 provided on the base 20D for the tower crane, which is constructed on the underground portion 20B before and after the removal of the temporary tent 200. The tower crane 550 may be a mast climbing type, but may of course be a floor climbing type. The above-ground part extends upward and is completed in due course.
A new building is completed by completing the underground part and the ground part. This completes the rebuilding of the building.

DESCRIPTION OF SYMBOLS 10 Old structure 10A Old ground part 10B Old underground part 10C Old pile 20B Underground part 20C Cast-in-place pile 20D Base 110 Foundation rail 120 Pile 121 Pile body 121A Anchor body 122 Correction material 122A Tube part 122A1 Installation groove 122B Installation part 123A Bolt 123B Nut 123C Washer 200 Temporary tent 210 Divided tent 220 Aggregate 221 Column 222 Beam 230 Sheet 240 Sheet 300 Pile driver 301 Hole 410 Gantry 420 Support body 430 Sheet pile 440 Earth anchor 510 Bulldozer 520 Excavator 530 Crane truck Crane truck S Underground space X Target range Y Specific range

Claims (7)

A pile that is driven into the ground surface in order to support rails laid on a horizontal and straight line at predetermined intervals,
A pile body that is a ready-made pile driven into the ground surface;
The upper end of the pile body is configured to be fixable in a state positioned at an arbitrary position in the length direction of the pile body, and the upper end thereof eats in all directions from the pile body when viewed in plan. A correction member comprising a mounting portion having a flat surface to which the rail perpendicular to the length direction of the pile body is attached in a state where the rail is fixed to the pile body;
Equipped with a,
The correction material has a guided portion that allows the correction material to be translated with respect to the pile body while being guided by the pile body near the upper end of the pile body,
The pile body has a cylindrical shape,
The attachment portion in the correction material is a donut-shaped plate, and when the correction material is fixed to the pile body, the center of the attachment portion, which is a donut-shaped plate, is on the axis of the pile body. The guided portion in the correction material corresponds to the outer surface of the pile body and corresponds to the inner surface guided to the outer surface of the pile body, or the inner surface of the pile body. A cylindrical shape having an outer surface guided to the inner surface of the pile main body,
The cylindrical guided portion has a groove that penetrates the inner and outer surfaces in an appropriate range in the vertical direction, and is spirally cut.
Near the upper end of the pile main body, the upper end of the pile main body is covered with the guided portion while guiding the inner surface of the guided portion to the outer surface of the pile main body, or the outer surface of the guided portion is covered with the pile. When the guided portion is inserted while being guided to the inner surface of the main body, the guided portion is inserted into the groove provided in the guided portion at an arbitrary height position of the pile main body with respect to the pile main body. Hole is drilled at a position that can be aligned by rotating
A nut is screwed into a bolt that penetrates the hole of the pile body and the groove of the guided portion together, and the pile body and the guided portion are connected between the head of the bolt and the nut. By sandwiching, the correction material is fixed to the pile body,
Pile. A predetermined member is attached to the attachment portion, and the rail is attached to the attachment portion via the predetermined member.
The pile according to claim 1. A rail that is laid horizontally and straight;
A plurality of pile body is a prefabricated pile driven down to the surface at predetermined intervals so as to ride on a straight line parallel to said straight line,
The pile main body is configured to be fixed in a state positioned at an arbitrary position in the length direction of the pile main body, attached to the upper end of each pile main body, and the upper end of the pile main body from the pile main body in a plan view. A plurality of correction members comprising a mounting portion having a flat surface to which the rail perpendicular to the length direction of the pile main body is mounted in a state of protruding in a direction and being fixed to the pile main body;
With
The correction material has a guided portion that allows the correction material to be translated with respect to the pile body while being guided by the pile body near the upper end of the pile body,
The pile body has a cylindrical shape,
The attachment portion in the correction material is a donut-shaped plate, and when the correction material is fixed to the pile body, the center of the attachment portion, which is a donut-shaped plate, is on the axis of the pile body. The guided portion in the correction material corresponds to the outer surface of the pile body and corresponds to the inner surface guided to the outer surface of the pile body, or the inner surface of the pile body. A cylindrical shape having an outer surface guided to the inner surface of the pile main body,
The cylindrical guided portion has a groove that penetrates the inner and outer surfaces in an appropriate range in the vertical direction, and is spirally cut.
Near the upper end of the pile main body, the upper end of the pile main body is covered with the guided portion while guiding the inner surface of the guided portion to the outer surface of the pile main body, or the outer surface of the guided portion is covered with the pile. When the guided portion is inserted while being guided to the inner surface of the main body, the guided portion is inserted into the groove provided in the guided portion at an arbitrary height position of the pile main body with respect to the pile main body. Hole is drilled at a position that can be aligned by rotating
A nut is screwed into a bolt that penetrates the hole of the pile body and the groove of the guided portion together, and the pile body and the guided portion are connected between the head of the bolt and the nut. By sandwiching, the correction material is fixed to the pile body,
By properly positioning the correction material fixed to the pile body in the length direction with respect to the pile body using the guided portion, the groove, the hole, the bolt, and the nut , the straight line is obtained. The height of each plane of the mounting portion attached to all of the plurality of pile bodies that ride on the straight line parallel to the plane is aligned.
With respect to each of the planes of the plurality of attachment portions, the rail is attached , the rail is supported from below by the plurality of pile main bodies and the correction material ,
Rail structure. A predetermined member is attached to the attachment portion, and the rail is attached to the attachment portion via the predetermined member.
Rail structure according to claim 3, wherein. On the two straight lines with a predetermined interval parallel to the straight line on which the rail rides, the pile main body is located at the intersection of the two straight lines that are a plurality of straight lines with a predetermined interval orthogonal to the two straight lines and the two straight lines. As each is driven in,
When two piles struck so as to ride on the same one of the plurality of orthogonal lines among the pile main bodies are used as a set of pile main bodies , the mounting portion of the set of piles The both ends of the straddling material having a plane whose upper surface is a horizontal surface are fixed, and the rail is fixed to the upper surface of the straddling material, so that it is fixed to the pile body via the straddling material Fixed to the mounting portion ,
Rail structure according to claim 4, wherein. Two rails parallel to each other are fixed to the plane of the straddling material,
Rail structure according to claim 5, wherein. A correction material used in combination with a pile body that is a ready-made pile that is driven into the ground surface to support rails that are laid on a horizontal and straight line at a predetermined interval.
The pile body is configured to be fixable to the upper end of the pile body in an arbitrary position in the length direction of the pile body. leaving seen, provided with a mounting portion having a plane which is mounted the vertical the rails against it lengthwise direction of the pile body in a fixed state to the pile body,
The attachment portion in the correction material is a donut-shaped plate, and when the correction material is fixed to the pile body, the center of the attachment portion, which is a donut-shaped plate, is on the axis of the pile body. The guided portion in the correction material corresponds to the outer surface of the pile body and corresponds to the inner surface guided to the outer surface of the pile body, or the inner surface of the pile body. A cylindrical shape having an outer surface guided to the inner surface of the pile main body,
The cylindrical guided portion has a groove that penetrates the inner and outer surfaces in an appropriate range in the vertical direction, and is spirally cut.
Near the upper end of the pile main body, the upper end of the pile main body is covered with the guided portion while guiding the inner surface of the guided portion to the outer surface of the pile main body, or the outer surface of the guided portion is covered with the pile. When the guided portion is inserted while being guided to the inner surface of the main body, the guided portion is inserted into the groove provided in the guided portion at an arbitrary height position of the pile main body with respect to the pile main body. Hole is drilled at a position that can be aligned by rotating
A nut is screwed into a bolt that penetrates the hole of the pile body and the groove of the guided portion together, and the pile body and the guided portion are connected between the head of the bolt and the nut. By sandwiching, the correction material is fixed to the pile body,
Correction material.

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