JP4117199B2 - Construction method of block fence foundation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a construction method for the foundation of a block fence, and in particular, a block fence having many advantages such as easy construction management, easy construction of a strong block fence, and reduced generation of residual soil. It relates to the construction method of the foundation.
[0002]
[Prior art]
Conventionally, block fences built to surround the outer periphery of residences, factories, offices, etc. first construct a fabric foundation with vertical bars standing at predetermined intervals, and then on this fabric foundation The blocks are piled up to the required height to build the block fence.
[0003]
[Problems to be solved by the invention]
Conventionally, when constructing the above fabric foundation, after excavating the ground for constructing the fabric foundation into a groove shape to a predetermined depth, and introducing a base material such as chestnut into the excavation groove, reinforcing bars such as vertical bars and formwork Assemble and put concrete in the formwork.
[0004]
By the way, in order to build a strong block fence that can withstand a large earthquake, it is necessary to build a strong cloth foundation. To that end, it is necessary to increase the depth and width of the excavation groove. As a result, the amount of basic materials such as chestnut and concrete and the amount of concrete used increase, and the amount of residual soil generated increases accordingly, resulting in an increase in construction costs.
For this reason, in reality, a large number of block fences with insufficient strength are currently built, and in the event of a large earthquake, there is a risk of significant damage.
[0005]
In addition, in the conventional construction method that assembles reinforcing bars such as vertical bars in the excavation groove, there are many parts that depend on the skill of the installer, so if the skill of the installer is immature, the vertical position of the vertical bars Due to the inaccuracy of the construction, the accuracy of construction deteriorates and the quality of the constructed block fence is not stable.
[0006]
In view of the problems of the conventional construction method of the block fence, the present invention provides a foundation for the block fence that can be easily constructed and can easily build a strong block fence and reduce the amount of residual soil generated. The purpose is to provide a construction method.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the construction method of the foundation of the block fence according to the present invention is the construction method of the foundation of the block fence in which the vertical bars are erected from the foundation. After excavating and installing the steel pipe member in the vertical hole to a position deeper than the depth of excavation of the vertical hole, injecting the filler into the space of the steel pipe member and installing the vertical bars in the steel pipe member, the vertical hole Concrete is placed in the foundation construction part including the inside of the space.
Here, as the filler, for example, a mortar or concrete cement-based or synthetic resin-based filler is used, and a filler that can add a specified amount of water or start a curing reaction on site is suitable. Can be used.
In addition, the injection of the filler into the space of the steel pipe member and the erection of the vertical bars in the steel pipe member may be performed first depending on the construction procedure, etc. It can be done at the same time.
[0008]
The construction method of the foundation of this block fence is to excavate a vertical hole at the vertical position of the vertical bar of the foundation, and to embed a steel pipe member in the vertical hole to a position deeper than the excavation depth of the vertical hole. After injecting filler into the steel pipe member and setting up vertical bars in the steel pipe member, concrete is placed in the foundation construction part including the inside of the vertical hole space. A strong foundation can be constructed without increasing the depth and width.
Further, the vertical bars can be set up and fixed accurately by injecting the filler into the space of the steel pipe member in a state where the vertical bars are supported and set up by the support member in the steel pipe member.
[0009]
In this case, the excavation of the vertical hole and the construction of the steel pipe member can be performed using a gauge displaying the construction position of the steel pipe member.
[0010]
Thereby, the excavation position of the vertical hole and the driving position of the steel pipe member can be accurately determined, and the vertical bar can be erected and fixed more accurately.
[0011]
Further, the vertical hole can be excavated so that the planar shape becomes a long hole shape.
[0012]
This makes it possible to build a strong foundation without increasing the diameter of the vertical hole. By setting the longitudinal direction of the vertical hole parallel to the foundation, the strength can be increased simply by forming a vertical hole that is not significantly different from the width of the foundation. It is possible to construct a foundation without crossing the boundary of the site, and by setting the longitudinal direction of the vertical hole to be perpendicular to the foundation, external force perpendicular to the foundation can be obtained. On the other hand, a strong foundation can be established.
[0013]
The vertical hole can be excavated so that the opening is larger than the bottom.
[0014]
As a result, a stronger foundation can be constructed.
[0015]
The tip of the steel pipe member is sharply formed, and the steel pipe member can be driven into the ground and built.
[0016]
Thereby, while being able to build in a steel pipe member easily, the surrounding ground can be consolidated by driving in a steel pipe member, and a foundation with still higher strength can be constructed.
[0017]
An attachment member having a sharp tip formed at the tip of the steel pipe member and a vertical stripe holding portion at the center of the upper portion can be attached.
[0018]
This eliminates the need to process the steel pipe member and allows the vertical bars to be erected and fixed accurately, which not only improves the construction accuracy, but also facilitates construction management and makes the concrete cover thickness of the vertical bars uniform. Combined with this, the quality of the constructed block can be stabilized.
[0019]
A vertical bar holding member can be attached to the inside of the steel pipe member.
[0020]
As a result, the vertical bars can be set up and fixed accurately, and not only the construction accuracy is improved, but also construction management is easy and the concrete cover thickness of the vertical bars is made uniform. The quality of the cocoon can be stabilized.
[0021]
Moreover, a horizontal line can be penetrated to a steel pipe member.
[0022]
Thereby, a stronger foundation can be constructed.
[0023]
Moreover, the filler prepared and packaged according to the space volume of one steel pipe member can be inject | poured in the space of a steel pipe member.
[0024]
Thereby, a filler can be reliably inject | poured and filled in the space of a steel pipe member, and a vertical streak can be fixed firmly.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a construction method for a foundation of a block fence according to the present invention will be described below with reference to the drawings.
1 to 5 show an embodiment of the construction procedure of the construction method for the foundation of the block fence of the present invention.
[0026]
First, as shown in FIG. 1, although the ground of the position where the block fence 10 is constructed is not particularly limited, for example, a depth H1: about 100 to 200 mm is excavated into a groove shape, and the cloth foundation 11 is formed. The excavation groove 1 to be a part to be constructed is formed.
In this case, it is desirable to form the bottom surface of the excavation groove 1 as flat as possible.
[0027]
Next, a gauge 2 is laid on the bottom surface of the excavation groove 1.
As shown in FIG. 6, the gauge 2 has through-holes 21 at every standing interval L (not specifically limited, but usually L: 800 mm) of the vertical bars 8 a erected from the fabric foundation 11. (The diameter of the through-hole 21 is set to a size that allows a steel pipe member 5 to be described later to be inserted therethrough and not to be too large).
In addition, the gauge 2 is formed to have a length that is easy to handle, and a plurality of gauges 2 are connected and used as necessary via a connection portion 22 formed at the end of the gauge 2.
In this state, marking is performed at the position of the through hole 21 formed in the gauge 2 by using a marking material 3 such as paint.
[0028]
Next, as shown in FIG. 2, the gauge 2 is removed, and a vertical hole 4 is formed at the marked position using an appropriate excavating tool such as a return scoop.
Although this vertical hole 4 is not specifically limited, For example, the diameter is formed to a diameter of about 60 to 350 mm which is 2 to 8 times the diameter of the steel pipe member 5 described later, and a depth H2 is about 300 to 1000 mm. Like that.
[0029]
And the vertical hole 4 is excavated straight as shown in FIG. 2 (a), and as shown in FIG. 2 (b), the opening is larger than the bottom (in this case, as shown in the figure, It can be formed in a multi-stage shape or a mortar shape.) It can be excavated, and thereby a foundation with higher strength can be constructed.
[0030]
Then, as shown in FIG. 3, the gauge 2 is laid again on the bottom surface of the excavation groove 1, and the steel pipe member 5 is inserted into the through-hole 21 formed in the gauge 2. The striking tool 7 is used to drive and arrange a position deeper than the depth H2 of the vertical hole 4, for example, to a depth H3 of about 200 to 1000 mm. Thus, in order to drive and arrange the steel pipe member 5, the surrounding ground into which the steel pipe member 5 is driven can be compacted, and the steel pipe member 5 can be erected stably (independently). It will be possible.
At this time, the upper end of the steel pipe member 5 is positioned in the excavation groove 1 above the vertical hole 4. Thus, when the upper end of the steel pipe member 5 is positioned in the excavation groove 1 and concrete is placed in the excavation groove 1 including the inside of the space 41 of the vertical hole 4 to construct the fabric foundation 11, the steel pipe The upper end of the member 5 is embedded in the fabric foundation 11 and can ensure the integrity of the steel pipe member 5 and the concrete placed in the excavation groove 1 including the space 41 of the vertical hole 4, that is, the fabric foundation 11. It becomes.
[0031]
As shown in FIG. 7, the steel pipe member 5 has a support member 51 of vertical bars 8a disposed therein at an appropriate position, and further has its lower ends 52a and 52b closed and sharply formed. is there.
Although the steel pipe member 5 is not specifically limited, For example, according to the height of the block fence 10 to build, the property of the ground which builds the block fence 10, etc., a diameter is about 25-140 mm and thickness is 1-. A steel pipe having a length of about 6 mm and a length of about 500 to 2000 mm is used.
[0032]
The support member 51 of the vertical bar 8a is made of metal or synthetic resin, and has a hole 51a or a clamp part 51b (see FIG. 7 (f)) for holding the vertical bar 8a at the center. It arrange | positions by fixing to upper part (or several places) by welding or adhesion | attachment, or carrying out strong fitting.
[0033]
The lower ends 52a and 52b of the steel pipe members are closed and sharpened by drawing into a conical shape as shown in FIG. 7 (b) or by crushing as shown in FIG. 7 (c). To form.
[0034]
Furthermore, when hitting the steel pipe member 5 using the hitting tool 7, as shown in FIGS. 3 and 7 (a), the upper end of the steel pipe member 5 is covered with a metal or synthetic resin hitting cap 6a. Thus, the upper end of the steel pipe member 5 is prevented from being crushed by hitting, and after the driving is completed, the hitting cap 6a is removed.
In addition, as shown in FIG.7 (d), the cap 6a for impact | damage is groove-shaped so that the upper end part of the steel pipe member 5 can be held by fitting on the upper end part of the steel pipe member 5. What provided with the insertion part can be used suitably.
Thereby, the upper end of the steel pipe member 5 can be prevented from being crushed by hitting.
[0035]
In the present embodiment, the steel pipe member 5 itself is processed to close the end face and form a sharp tip. However, the tip of the steel pipe member 5 has a tip as shown in FIG. It is possible to attach an attachment member 6b in which the holding portion of the vertical streak 8a is formed at the upper center.
This eliminates the need to process the steel pipe member 5 and allows the vertical bars 8a to be erected and fixed accurately, which not only improves construction accuracy but also facilitates construction management, and the concrete cover thickness of the vertical bars 8a is increased. Combined with being uniform, the quality of the constructed block can be stabilized.
[0036]
In the present embodiment, the steel pipe member 5 can be built easily by forming the tip of the steel pipe member 5 sharply and driving the steel pipe member into the ground, and by driving the steel pipe member. Although the surrounding ground could be consolidated and a stronger foundation could be constructed, in addition to this, a hole for embedding the steel pipe member 5 was previously dug, and the steel pipe member 5 was placed in this hole. Arbitrary erection methods such as inserting the steel pipe member 5 by insertion, or using a steel pipe member having spiral blades formed on the outer peripheral surface, and setting the steel pipe member by sunk by rotating the steel pipe member. Can be adopted.
[0037]
Then, in the state where the vertical bars 8a are supported and erected in the self-supporting steel pipe member 5, the filler is injected into the space of the steel pipe member 5, and excavation is performed as shown in FIG. A horizontal line (base horizontal line) 8b is arranged in the groove 1. At this time, the vertical streaks 8a and the horizontal streaks 8b are tied together, so that the vertical streaks 8a can be erected and fixed more accurately. Thereafter, concrete is cast in the excavation groove 1 including the inside of the space 41 of the vertical hole 4 to construct the fabric foundation 11, and then the concrete blocks 9 are sequentially stacked to construct the block fence 10 as shown in FIG. Like that.
Here, either the standing of the vertical bars 8a in the steel pipe member 5 and the injection of the filler into the space 41 of the steel pipe member 5 may be performed first according to the construction procedure or the like. It can also be performed substantially simultaneously.
[0038]
In addition to the normal reinforcing bars, the vertical reinforcing bars 8a may be made of stainless steel reinforcing bars or reinforcing bars whose surfaces are rust-prevented by plating, resin coating or resin coating.
Thereby, corrosion of the reinforcing bar due to intrusion of rainwater or the like can be prevented, and a durable block rod can be constructed.
[0039]
Further, by supporting and standing the vertical bars 8a in the steel pipe member 5 by the support member 51, the vertical bars 8a can be accurately set up and fixed in a state where the vertical bars 8a are provided. While the concrete blocks 9 are sequentially stacked at the upper position, an appropriate spacer (not shown) can be disposed on the vertical bars 8a so that the vertical bars 8a can be erected and fixed more accurately.
Thereby, the concrete covering thickness of the vertical bars 8a can be made more uniform, corrosion of the reinforcing bars can be prevented, and a durable block can be constructed.
[0040]
By the way, when the filler is injected into the space of the steel pipe member 5, the filler prepared and packaged according to the space volume of one steel pipe member 5 can be injected. As the filler, for example, a mortar or concrete cement-based or synthetic resin-based filler (in this case, it is desirable to use a non-shrinkable material such as a non-shrink mortar) can be used. A prescribed amount of water can be added to the package body in which the filler is packaged, and a curing reaction of the filler can be started.
Thereby, a filler can be reliably inject | poured and filled in the space of the steel pipe member 5, and the vertical bar 8a can be fixed firmly.
[0041]
The construction method of the foundation of this block rod is that after the steel pipe member 5 is driven and arranged to a position deeper than the depth of the vertical hole 4 in the vertical hole 4 excavated and formed at the vertical position 8a of the fabric foundation 11 The fabric foundation 11 including the inside of the space 41 of the vertical hole 4 is constructed while injecting the filler into the space of the steel pipe member 5 in a state where the vertical bars 8a are supported and erected in the steel pipe member 5 by the support member 51. Since concrete is placed in the excavation groove 1 as a part, it is possible to construct a strong cloth foundation 11 without increasing the depth and width of the excavation groove 1 for constructing the cloth foundation 11. it can.
Further, the vertical bars 8a can be accurately set up and fixed by injecting a filler into the space of the steel pipe member 5 in a state where the vertical bars 8a are supported and set up in the steel pipe member 5 by the support members 51.
Further, the excavation position of the vertical hole 4 and the driving position of the steel pipe member 5 can be accurately performed by performing the excavation of the vertical hole 4 and the driving of the steel pipe member 5 by using the gauge 2 indicating the arrangement position of the steel pipe member 5. The vertical streaks 8a can be erected and fixed more accurately.
[0042]
Further, according to the construction method of the foundation of the block fence, since the strong cloth foundation 11 can be constructed and the strong block fence 10 can be constructed, conventionally, when building a block fence having a height of 1200 mm or more. In addition, in some cases, it is possible to omit the retaining wall that had to be provided with a block wall height of 4/5 or more at predetermined intervals, thereby eliminating dead space, There is an advantage that the land can be used effectively.
[0043]
By the way, in the said Example, although the vertical hole 4 was formed in the circular shape about 60-350 mm in diameter, it is not limited to this, For example, as shown in FIG. It can be formed in the shape of an elongated hole having parallel portions.
Thereby, a strong cloth foundation can be constructed without increasing the diameter of the vertical hole 4.
In this case, as in the present embodiment, by setting the longitudinal direction of the vertical hole 4 in parallel with the excavation groove 1 (cloth foundation), a cloth having strength can be obtained simply by forming the vertical hole 4 that is not greatly different from the width of the cloth foundation. It becomes possible to construct a foundation, and a cloth foundation can be constructed without crossing the boundary of the site.
[0044]
Moreover, by setting the longitudinal direction of the vertical hole 4 to be perpendicular to the cloth foundation, a cloth foundation having strength against an external force perpendicular to the cloth foundation can be constructed.
[0045]
Furthermore, if necessary, by inserting one to a plurality of transverse bars 53 (two in this embodiment) through the steel pipe member 5, a stronger fabric foundation can be constructed.
The transverse bars 53 are simply inserted into the holes formed in the steel pipe member 5, welded to the steel pipe members 5, or formed with male threads in the transverse bars 53, and fixed to the steel pipe members 5 using nuts. Further, the steel pipe member 5 can be firmly fixed, and thereby, the integrity of the transverse bars 53 with respect to the steel pipe member 5 can be improved, and a stronger fabric foundation can be constructed.
[0046]
As mentioned above, although the construction method of the foundation of the block fence of this invention was demonstrated based on the Example, this invention is not limited to the structure described in the said Example, The structure described in the Example is suitably used. The configuration can be changed as appropriate within a range not departing from the gist, such as a combination.
Moreover, the construction method of the foundation of the block fence of this invention also applies the independent foundation used for a gate pillar etc. besides the cloth foundation of a block fence. In addition, the “block 塀” in the name of the present invention is only attached to clarify the main application, and in this specification, the concept of “block 塀” is composed of blocks. Structures such as gate pillars are also included and are not excluded.
[0047]
【The invention's effect】
According to the construction method of the foundation of the block fence of the present invention, a vertical hole is excavated in the standing position of the vertical bar of the foundation, and a steel pipe member is built in the vertical hole to a position deeper than the excavation depth of the vertical hole, In order to construct the foundation, the filler is injected into the space of the steel pipe member and the vertical bars are erected in the steel pipe member, and then concrete is placed in the foundation construction part including the space of the vertical hole. A strong foundation can be constructed without increasing the depth and width of the excavation groove. In addition, the amount of basic materials such as chestnuts and concrete used can be reduced, and in addition to this, the amount of generated residual soil is reduced, making it possible to construct a strong block fence easily and at a low construction cost. .
In addition, by injecting a filler into the space of the steel pipe member in a state where the vertical bars are supported and erected in the steel pipe member, the vertical bars can be erected and fixed accurately, and the construction accuracy is improved. In addition to easy construction management, coupled with the fact that the vertical concrete cover thickness is uniform, the quality of the constructed block fence is stabilized.
[0048]
In addition, the drilling position of the vertical hole and the driving position of the steel pipe member can be accurately determined by performing the drilling of the vertical hole and the mounting of the steel pipe member using a gauge displaying the mounting position of the steel pipe member. , The vertical bars can be set up and fixed more accurately.
[0049]
In addition, by excavating the vertical hole so that the planar shape becomes a long hole shape, a strong foundation can be constructed without increasing the diameter of the vertical hole, and the longitudinal direction of the vertical hole is set parallel to the foundation Therefore, it is possible to build a strong foundation simply by forming a vertical hole that is not significantly different from the width of the foundation, it is possible to build a foundation without crossing the boundary of the site, and the longitudinal direction of the vertical hole By setting at a right angle to the foundation, a foundation that is strong against an external force perpendicular to the foundation can be constructed.
[0050]
By excavating the vertical hole so that the opening is larger than the bottom, a foundation with higher strength can be constructed.
[0051]
By forming the tip of the steel pipe member sharply and driving the steel pipe member into the ground, the steel pipe member can be easily built, and the surrounding ground can be consolidated by driving the steel pipe member. It is possible to build a stronger foundation.
[0052]
By attaching an attachment member that has a sharp tip at the tip of the steel pipe member and a vertical streak holding portion at the center of the upper part, there is no need to process the steel pipe member, and the vertical bars are set up accurately. Not only can it be fixed and the construction accuracy is improved, but also construction management is easy, and the quality of the constructed block fence can be stabilized in combination with the fact that the concrete covering thickness of the vertical bars becomes uniform.
[0053]
By installing the vertical bar holding member inside the steel pipe member, the vertical bar can be set up and fixed accurately, not only improving the construction accuracy, but also easy to manage the construction, and the vertical concrete cover thickness is uniform. Combined with becoming, the quality of the constructed block can be stabilized.
[0054]
Moreover, a stronger foundation can be constructed by inserting the horizontal bars through the steel pipe member.
[0055]
In addition, by filling the space of the steel pipe member with the filler prepared and packaged according to the space volume of one steel pipe member, the filler is surely injected and filled in the space of the steel pipe member. And the vertical bars can be firmly fixed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a construction order of an embodiment of a construction method for a fence according to the present invention.
FIG. 2 is a longitudinal sectional view showing the construction sequence of an embodiment of the dredging construction method of the present invention, where (a) shows a case where a vertical hole is excavated straight, and (b) shows that the opening of the vertical hole is larger than the bottom. The case of excavation is shown.
FIG. 3 is a longitudinal sectional view showing a construction sequence of one embodiment of the construction method of the scissors of the present invention.
FIG. 4 is a longitudinal sectional view showing a construction sequence of an embodiment of the construction method of the scissors of the present invention.
FIG. 5 is a longitudinal sectional view showing a construction sequence of an embodiment of the construction method of the scissors of the present invention.
FIG. 6 is a plan view of a gauge.
7A and 7B show a steel pipe member and an impact cap, wherein FIG. 7A is a perspective view thereof, FIG. 7B is a bottom view of the steel pipe member, FIG. 7D is a cross-sectional view of the impact cap, and FIG. Sectional drawing of an attachment member, (f) is a top view of the supporting member of a vertical line.
FIGS. 8A and 8B show an embodiment of the method for constructing a scissors according to the present invention in which a vertical hole is formed in the shape of an elongated hole. FIG.
[Explanation of symbols]
1 excavation groove (foundation construction department)
2 Gauge 3 Marking material 4 Vertical hole 5 Steel pipe member 51 Support member 53 Horizontal bar 6a Impact cap 6b Attachment member 7 Impact tool 8a Vertical bar 8b Horizontal bar 9 Concrete block 10 Block rod 11 Cloth foundation (foundation)

Claims (5)

In the construction method of the foundation of the block fence in which the vertical bars are erected from the foundation,
Drilling into a groove shape, forming a drilling groove that will be the part of building the fabric foundation,
Drill a vertical hole in the standing position of the vertical line of the foundation inside the excavation groove ,
In the vertical hole, a steel pipe member is built to a position deeper than the excavation depth of the vertical hole,
After injecting filler into the space of the steel pipe member and setting up the vertical bars in the steel pipe member,
By placing concrete in the foundation construction part including the space of the vertical hole , the excavation groove serving as the fabric foundation, the vertical hole formed inside the excavation groove, and the steel pipe member provided inside the vertical hole are integrated. construction methods of the foundation of the block wall, characterized in that. The vertical hole, construction methods of the basic blocks fence according to claim 1, characterized in that the excavation so that the planar shape becomes long hole shape. The tip of the steel pipe member is formed sharply, the steel pipe member is driven into the ground and built,
The construction method for the foundation of the block rod according to claim 1 or 2 , wherein an attachment member having a sharp tip formed at the tip of the steel pipe member and a vertical streak holding portion formed at the upper center is attached. The construction method of the foundation of the block fence in any one of Claim 1 to 3 which attaches the holding member of a vertical bar | burr inside a steel pipe member. The construction method for the foundation of the block rod according to any one of claims 1 to 4 , wherein a horizontal bar is inserted through the steel pipe member.

Images