JP4151956B2 - Manufacturing method of block for building drainage pipe penetration type retaining wall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a water drainage pipe penetration type retaining wall construction block and a mold used therefor.
[0002]
[Prior art]
Retaining walls are usually constructed on slopes such as development sites, roads, and rivers to prevent slopes, landslides, and erosion of slopes due to rainwater.
For example, when building a retaining wall by stacking retaining wall building blocks (hereinafter sometimes referred to simply as blocks), the work is to stack the blocks according to the slope of the slope and between the block and the slope. Retaining walls are constructed by alternately performing the step of placing a backing material (concrete, etc.) on the wall one by one.
[0003]
The retaining wall thus formed is constantly subjected to earth pressure from the slope behind it.
In addition, when rainwater or the like penetrates into the ground forming the slope, the pressure increases by the amount of water pressure in addition to the earth pressure, and the retaining wall of the block pile may collapse.
Therefore, conventionally, a drainage structure for draining water from the ground behind has been formed on the retaining wall construction block and the retaining wall constructed thereby.
This drainage structure is roughly divided into the following types.
[0004]
First, there is a type of retaining wall construction block in which a plurality of drain holes are formed on the front wall and the rear wall of the block, and further, the stone is filled between the front and rear walls and between the rear wall and the slope. It has been proposed (see Patent Document 1).
When a retaining wall is constructed with these blocks, water oozes from the ground into the backfilled chestnut layer, and the interstices between the chestnut stones that are filled (that is, filled between the front and back walls) from the drain holes in the rear wall of the block. It is discharged outside through the drain hole on the front wall.
[0005]
However, in such a block, in order to enhance the water draining effect, it is necessary to make the water draining hole relatively large in diameter. However, if a plurality of such holes are formed, the strength of the block itself is reduced accordingly.
Furthermore, since it is difficult to place concrete as a backing material or an intermediate material, there is a problem that the retaining wall is not always sufficiently solid.
[0006]
Secondly, in order to avoid such difficulties, a retaining wall construction block (▲ 1 ▼) with a drainage hole formed so as to penetrate the block back and forth, or a drainage pipe to penetrate the block when the retaining wall is constructed. Various types of retaining wall construction blocks (2) have been proposed.
For example, in the former block {circle around (1)}, a drain hole C penetrating back and forth is formed in a retaining wall 3 (connection wall) that connects the front wall 1 and the rear wall 2 of the retaining wall construction block B (Patent Document). 2, an example is shown in FIG. 11), and a water drainage hole formed in a thick rear wall of a block having a special structure (see Patent Document 3).
[0007]
In such a block, since the water drain hole having a diameter of about several centimeters is usually formed in one or two places of the block, the strength of the block is sufficient.
A retaining wall construction block B having one retaining wall 3 as shown in FIG. 11 and a retaining wall construction block B having two or more retaining walls 3 as shown in FIG. When used together as in the case, a through hole may be formed in the retaining wall 3 of the block B of FIG.
However, in such a case, it is necessary to form the retaining wall 3 as thick as the drain hole C passes.
[0008]
Further, in practice, it is not always easy to form a block having such a drain hole C.
Specifically, concrete in which air is pressed into a tire tube or steel rod-like material inserted into a hose is placed at a predetermined position where a water drain hole C is to be formed in the formwork, and is placed. The drain hole C is formed while not being crushed by.
[0009]
However, in such a method, vibration is applied to the mold in order to consolidate the concrete, but it is not always easy to maintain the diameter of the drain hole that is performed at that time.
Further, the hole diameter must be maintained until the concrete is solidified, and the tire tube or the like must be held at a predetermined position, which is troublesome and productivity is not necessarily good.
Furthermore, the work of pulling out the tire tube and hose is troublesome.
[0010]
The above retaining wall construction block (2), that is, a block of a type in which a drain pipe is provided so as to penetrate the block when constructing the retaining wall, is to remove part of the front wall (or rear wall) of the block (Refer to Patent Document 4), and a block in which a thinly formed portion of the front wall of the block is preliminarily formed (refer to Patent Document 5) and a water drain pipe is passed through the crushed portion has been proposed. .
However, in such a block, it is necessary to crush the blocks one by one at the time of constructing the retaining wall, to adjust the position of the drainage pipe and to adjust the installation angle, and the construction work becomes complicated.
[0011]
On the other hand, as block (2), a through hole is formed in the front wall (and rear wall) of the block in advance, and when the retaining wall is constructed, the drain pipe is connected to or inserted into the through hole. Many types of retaining wall construction blocks have been proposed (see, for example, Patent Documents 6 and 7).
[0012]
FIG. 12 is a perspective view showing an example of such a type of retaining wall construction block (the front wall 1 is indicated by a dotted line for convenience).
Moreover, FIG. 13 is explanatory drawing which shows the procedure which manufactures such a retaining wall construction block.
[0013]
That is, in the retaining wall construction block B, a through hole D1 and a through hole D2 are formed in the front wall 1 and the rear wall 2, respectively (see FIG. 12).
In order to form the through holes D1 and D2, for example, as shown in FIG. 13, among the frame members 20 to 60 constituting the mold 10, the through holes D1 of the frame member 20 forming the front wall surface of the block B are formed. Protrusions 21 are provided at corresponding portions.
[0014]
Moreover, the frame member 70 provided with the protrusion part 71 corresponding to the through-hole D2 of the rear wall 2 is attached to the side frame member 60 through, for example, a hinge structure (not shown) [see FIG. 13A]. .
Then, the frame members 20 to 60 are assembled to form the mold 10, and the frame member 70 is tilted (in the direction of the arrow in FIG. 13B) so that the protruding portion 71 is in contact with the upper frame member 30.
[0015]
In this state, concrete is placed in the mold 10 and the mold 10 is vibrated and solidified for compaction.
When the concrete is solidified, the retaining wall construction block B in which through holes D1 and D2 are formed in the front wall 1 and the rear wall 2 (the front wall 1 and the through hole D1 are not shown for convenience) is completed [FIG. 13]. (See (C)).
[0016]
When the retaining wall is constructed using the retaining wall construction block B in which the through holes D1 and D2 are formed in this way, the block B is stacked and a drain pipe is connected to the through holes D1 and D2. It is inserted and arranged.
Then, concrete is placed as a backing material or an intermediate placement material, and at that time, it is often placed while applying vibration so that the concrete is reliably filled.
[0017]
However, when the concrete is poured or vibration is applied, the drainage pipe may fall out of the through hole or be disconnected.
For this reason, the work is required to be more careful than necessary, causing a delay in the construction work.
[0018]
[Patent Document 1]
JP 2000-64311 A
[Patent Document 2]
Japanese Patent Laid-Open No. 11-61857
[Patent Document 3]
JP 2003-64706 A
[Patent Document 4]
JP-A-8-105069
[Patent Document 5]
JP 2000-319910 A
[Patent Document 6]
JP-A-11-29945
[Patent Document 7]
JP 2002-129586 A
[0019]
[Problems to be solved by the invention]
In this way, when constructing a retaining wall, the method of connecting or inserting a drain pipe into the through hole of the retaining wall construction block is not always satisfactory from the viewpoint of the efficiency of the retaining wall construction work. Not.
In order to prevent such a drop of the drainage pipe or disconnection from the through hole, a block embedded in a state where the drainage pipe penetrates in advance may be used.
[0020]
That is, at the stage of block formation (manufacturing), it is sufficient that the retaining wall construction block can be molded in a state where the drain pipe is embedded so as to penetrate the block back and forth (in the present invention, the retaining wall construction block in such a state is used). Is called a block for building a drainage pipe penetration type retaining wall).
However, in the above, as in the case where a drain hole is formed in the block using a tire tube (see FIG. 11), such a retaining wall building block is not always easily made with the conventional method or formwork. Could not mold.
[0021]
The present invention has been made in order to overcome the above-mentioned problems against the background of such a situation.
That is, an object of the present invention is to provide a manufacturing method of a block for building a drainage pipe penetration type retaining wall capable of forming a drainage pipe in a state of penetrating before and after the block at the stage of block molding. It is.
Moreover, it is providing the formwork suitable for manufacture of the block.
[0022]
[Means for Solving the Problems]
Thus, the present inventor, as a result of earnest research on such a problem background, as long as the drainage pipe is securely held at a predetermined position by the frame member of the mold used for molding the block, Even if concrete is placed on the formwork and vibration is applied for compaction, the drainage pipe can be prevented from being displaced or removed, and water can be applied to the formwork frame members. It has been found that the drainage pipe can be more reliably gripped by forming a concave receiving portion for gripping the drainage pipe, and the present invention has been completed based on this finding.
[0023]
That is, the present invention is (1) a method for manufacturing a retaining wall construction block formed by using a mold made of a plurality of frame members, wherein the predetermined position of the retaining wall construction block to be penetrated by the drainage pipe As a result, a frame member is formed by assembling a frame member while holding a drain pipe with a plurality of frame members, and then concrete is placed in the mold frame, and the concrete is cured to drain water. In the case of embedding a pipe integrally, a plurality of frame members include a front frame member for forming a front wall of a retaining wall building block, an upper frame member and a lower frame member for forming upper and lower portions, and a right It consists of a right frame member and a left frame member for forming a recess and a left recess, and the upper frame member and the lower frame member are slidable with respect to the front frame member, A semicircular concave receiving portion that forms a cylindrical through hole having an inner diameter equal to the outer diameter of the drain pipe. In the manufacturing method of the retaining wall construction block for holding the drain pipe by the upper frame member and the lower frame member provided with
[0024]
(2) A method for manufacturing a retaining wall building block that is molded by using a mold made of a plurality of frame members, so that the drainage pipe is embedded in a predetermined position of the retaining wall building block to be penetrated. In addition, the frame member is assembled with the drainage pipe held by a plurality of frame members to form a mold, and then concrete is placed on the mold, and the concrete is hardened so that the drainage pipe is integrated. In the embedding, a plurality of frame members are a front frame member for forming the front wall of the retaining wall building block, an upper frame member and a lower frame member for forming the upper part and the lower part, a right concave part and a left concave part The upper frame member and the lower frame member are attached to the front frame member so as to be able to stand up by a hinge structure, A semicircular concave receiving portion that forms a cylindrical through hole having an inner diameter equal to the outer diameter of the drain pipe. A retaining wall construction block for gripping a drain pipe by the right frame member and the left frame member.
[0025]
And again (3), The front frame member according to (1) or (2), wherein a hole for standing a drain pipe is provided. It exists in the manufacturing method of the block for a retaining wall construction.
[0027]
and again,( 4 ), Above The concave receiving part The right frame member and the left frame member It is formed in a detachable nesting member, and the drainage pipes of different sizes can be selectively replaced by the nesting member. As described in (2) above It exists in the manufacturing method of the block for a retaining wall construction.
[0030]
If the present invention meets this purpose, the above 1 to 4 Of course, a configuration combining two or more selected from the above can also be adopted.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the manufacturing method of the block for building a drainage pipe penetration type retaining wall of the present invention will be described with reference to the preferred embodiments based on the drawings.
First, the drainage pipe penetration type retaining wall construction block to be manufactured by the manufacturing method of the present invention will be briefly described.
In the present invention, the state in which the plurality of frame members grips the drainage pipe includes the state in which the plurality of frame members press and grip the drainage pipe, or between the plurality of frame members and the drainage pipe. Including a state of gripping with a slight gap.
[0032]
[Block for building drainage pipe penetration type retaining wall]
FIG. 1 is a perspective view showing a configuration example of a block for constructing a drainage pipe penetration type retaining wall (for convenience, the front wall 1 is indicated by a two-dot chain line; the same applies to FIG. 2).
Moreover, FIG. 2 is a perspective view which shows another structural example of the block for water draining pipe penetration type retaining wall construction.
In addition, the part of the dashed-two dotted line by the side of the front wall 1 of the drainage pipe P of FIG.1 and FIG.2 shows that the drainage pipe P has penetrated the front wall 1. FIG.
[0033]
The water drainage pipe penetration type retaining wall construction blocks A and A1 (hereinafter sometimes simply referred to as a block A or a block A1) in these configuration examples are arranged on the front wall 1 and the front wall 1 inclined so that the upper end side is retracted. A rear wall 2 provided substantially in parallel and a retaining wall 3 (a pair in the block A in FIG. 1) projecting substantially perpendicularly behind the front wall 1 and connecting the front wall 1 and the rear wall 2 are provided.
[0034]
Further, the retaining wall 3 is provided with a hole 4 so that the concrete partitioned by the retaining wall 3 is continuous when the embedded concrete is placed.
For convenience, in the block A and the block A1 in FIGS. 1 and 2, the concave portions on the left and right side surfaces of the block are referred to as a right concave portion 5 and a left concave portion 6, respectively. In the block A in FIG. The space surrounded by the left and right retaining walls 3 and 3 is referred to as an internal space 7.
[0035]
The blocks A and A1 shown in FIG. 1 and FIG. 2 are provided with a drain pipe P in a state of penetrating the front wall 1 and the rear wall 2 at a substantially central portion thereof.
That is, the drain pipe P is embedded in the state of penetrating the interior space 7 in the block A of FIG. 1 and in the front and rear through the vent hole 4 of the retaining wall 3 in the block A1 of FIG.
[0036]
By burying the drain pipe P so that the front wall 1 side is slightly lower than the rear wall 2 side, water in the ground behind the block (retaining wall) can be efficiently drained to the front wall side of the block. It is preferable to be formed as described above.
Incidentally, as the drain pipe P, a vinyl chloride pipe or the like is usually used, but pipes of other materials may be used.
[0037]
[Production method and form of the present invention]
Next, a manufacturing method peculiar to the present invention for forming this drainage pipe penetration type retaining wall building block and a mold used for the same will be described.
The manufacturing method of the drainage pipe penetration type retaining wall construction block according to the present invention grips the drainage pipe with a plurality of frame members so that the drainage pipe is embedded in a predetermined position of the retention wall construction block to be penetrated. In this state, a frame member is assembled to form a mold, and then concrete is placed in the mold, the concrete is cured, and a drainage pipe is embedded integrally.
[0038]
At that time, if a mold having a plurality of frame members in which concave receiving portions are formed so as to correspond to predetermined positions of the retaining wall construction block through which the water drainage pipe should penetrate is used as a mold, block molding It is preferable that the drainage pipe is more reliably gripped at the time.
Hereinafter, the manufacturing method (manufacturing process) and the formwork will be described with reference to the drawings.
[0039]
[First Embodiment]
FIG. 3 is an exploded perspective view showing a frame member of the mold used in the first embodiment of the present invention.
This mold M is a mold for molding the drainage penetration type retaining wall construction block A shown in FIG.
[0040]
The frame M includes a frame member M1 (front frame member M1) for forming the front wall 1 of the block A, and frame members M2 and M3 (upper frame member M2 and lower) for forming the upper and lower portions of the block A. A frame member M3), and frame members M4 and M5 (a right frame member M4 and a left frame member M5) for forming the right concave portion 5 and the left concave portion 6 of the block A.
[0041]
The upper frame member M2 and the lower frame member M3 are provided with box-shaped convex portions M21 and M31 for forming the internal space 7.
Further, the right frame member M4 and the left frame member M5 are provided with convex portions M41 and M51 for forming the holes 4 and 4 of the retaining walls 3 and 3, respectively.
[0042]
As described above, the present invention is characterized in that the drainage pipe is gripped by a plurality of frame members of the mold.
In that case, it is preferable that each frame member of the mold is formed with a concave receiving portion that can securely grip the drain pipe.
[0043]
Therefore, in this mold M, the center of the front end of the box-like convex portion M21 of the upper frame member M2 so as to correspond to a predetermined position (in this case, the central portion of the block A) through which the water draining pipe P passes, In addition, a concave receiving portion M22 and a concave receiving portion M32 are formed in a semicircular shape at the center of the tip of the box-shaped convex portion M31 of the lower frame member M3.
[0044]
In the manufacturing process to be described later, when the box-shaped convex portion M21 of the upper frame member M2 and the box-shaped convex portion M31 of the lower frame member M3 come into contact with each other, the concave receiving portion M22 and the concave receiving portion M32 cooperate to form a cylindrical shape. It will be in the state which forms a through-hole.
Therefore, by forming the concave receiving portion M22 and the concave receiving portion M32 so that the inner diameter of the cylindrical through hole is equal to the outer diameter of the drainage pipe P, the drainage pipe P can be reliably gripped. It becomes.
[0045]
Further, in the drain pipe penetrating retaining wall construction block A shown in FIG. 1, the drain pipe P is formed in a state of penetrating the front wall 1 of the block A.
Therefore, in the mold M shown in FIG. 3, a hole M11 for allowing the drainage pipe P to be inserted into the front frame member M1 and standing is formed.
[0046]
Next, a manufacturing method for manufacturing a drainage pipe penetration type retaining wall building block using the mold M having such a structure will be described.
FIG. 4 is a perspective view showing a state in which the drainage pipe is gripped by assembling the upper frame member and the lower frame member of the mold shown in FIG. 3.
[0047]
FIG. 5 is a perspective view showing a state in which a right frame member and a left frame member are further assembled to the mold shown in FIG.
FIG. 6 is a perspective view showing a state where the formwork is removed after the concrete is placed on the formwork to form the drainage pipe penetration type retaining wall construction block.
[0048]
First, the drain pipe P is inserted into the hole M11 of the front frame member M1 and erected with respect to the mold M in the state of FIG.
And the upper frame member M2 and the lower frame member M3 are slid with respect to the front frame member M1, and are made to approach until the box-shaped convex part M21 and the box-shaped convex part M31 contact | abut.
[0049]
At that time, as described above, the concave receiving portion M22 and the concave receiving portion M32 form a cylindrical through hole.
Here, if the concave receiving portion M22 and the concave receiving portion M32 are formed so that the inner diameter of the cylindrical through hole is equal to the outer diameter of the drainage pipe P, the upper frame member M2 and the lower frame member M3. It is preferable that the water drainage pipe P is securely gripped by abutting (see FIG. 4).
[0050]
Next, the right frame member M4 and the left frame member M5 are similarly slid with respect to the front frame member M1, and the convex portion M41 of the right frame member M4 and the convex portion M51 of the left frame member M5 are already in contact with each other. The upper frame member M2 is moved until it comes into contact with the box-shaped convex portion M21 of the upper frame member M2 and the box-shaped convex portion M31 of the lower frame member M3.
In this way, each frame member is assembled to form the mold M (see FIG. 5).
[0051]
Then, concrete is placed on the formwork M in this state, and the formwork M is vibrated to spread the concrete to every corner in the formwork M to be compacted.
After the concrete is solidified, the right frame member M4 and the left frame member M5 are moved in the reverse order of the assembly, and then the upper frame member M2 and the lower frame member M3 are moved to remove the assembly of each frame member. Then, the drainage pipe penetration type retaining wall construction block A is completed (see FIG. 6).
[0052]
According to the method for manufacturing the block for constructing a drainage pipe penetration type retaining wall of the present invention, the drainage pipe P is accurately gripped by the upper frame member M2 and the lower frame member M3 during the concrete placement to solidification. The front frame member M1 is erected through the hole M11.
Therefore, as in the case of forming the drain hole C (see FIG. 11) in the retaining wall construction block B using a tire tube or the like in the above-described conventional example, the drain pipe P (in the conventional example) The situation that the position of the tire tube) shifts or the hole diameter becomes small cannot occur, and the drainage pipe is embedded in a predetermined position of the retaining wall construction block to be penetrated.
[0053]
Further, after the concrete is solidified, the drainage pipe P is made up of a plurality of frame members (in the above embodiment, the upper frame member M2 and the lower frame so that the assembly of each frame member can be removed from the block A (see FIG. 6). It is necessary to grip with the frame member M3).
For example, when a through hole is formed in the box-shaped convex portion M21 of the upper frame member M2 and the drain pipe P is gripped by the through hole, the upper frame member M2 is pulled out from the block A after the concrete is solidified. It becomes impossible to do.
[0054]
In the above-described embodiment, the drain pipe P is formed so as to pass through the substantially central portion of the block A as in the block A shown in FIG. 1. It is also possible to embed the pipe P integrally.
That is, although not shown in order to avoid complication, in FIG. 3, by forming the box-shaped convex part M21 of the upper frame member M2 long (to form the box-shaped convex part M31 of the lower frame member M3 short accordingly), The position where the drain pipe P passes through the block A can be lowered.
[0055]
Further, the position of the concave receiving portion 22 of the box-like convex portion M21 of the upper frame member M2 is formed by shifting to the right or left (accordingly, the position of the concave receiving portion M22 of the box-like convex portion M31 of the lower frame member M3 is set. It is possible to shift the position of the drainage pipe P to the right or left.
Further, it is formed by changing the angle of the contact surface M23 of the box-shaped convex portion M21 of the upper frame member M2 (in accordance with this, the angle of the contact surface M33 of the box-shaped convex portion M31 of the lower frame member M3 is changed. ), The penetration angle of the drain pipe P can be changed.
Incidentally, when the position and angle of the drainage pipe P are changed in this way, it goes without saying that the position of the hole M11 of the front frame member M1 is changed accordingly.
[0056]
[Second Embodiment]
On the other hand, in the drainage pipe penetration type retaining wall construction block A shown in FIG. 1, the drainage pipe P is one retaining wall 3 as in the drainage pipe penetration type retaining wall construction block A1 shown in FIG. There is a case where it is desired to form the through hole 4 so as to penetrate the front and rear.
In such a case, as shown in FIG. 7A, for example, a concave receiving portion M52 is formed on a semicircular groove on the convex portion M51 of the left frame member M5, and further, a box-shaped convex portion of the upper frame member M2 is formed. A concave receiving portion M22 and a concave receiving portion M32 are formed at each corner of M21 and the box-shaped convex portion M31 of the lower frame member M3.
[0057]
At that time, when the three frame members are in contact with each other, the concave receiving portion M52, the concave receiving portion M22, and the concave receiving portion M32 form a cylindrical through hole having an inner diameter equal to the outer diameter of the drainage pipe P. To form.
A hole M11 of the front frame member M1 is also formed on the extension of the cylindrical through hole.
Then, as in the first embodiment, the drain pipe P is inserted through the hole M11 of the front frame member M1, and the upper frame member M2 and the lower frame member M3 are slid to contact each other. The right frame member M4 and the left frame member M5 are slid and brought into contact with the upper frame member M2 and the lower frame member M3, respectively.
[0058]
In this way, each frame member is assembled in a state where the drain pipe P is held by the left frame member M5 and the upper and lower frame members M2 and M3, thereby forming the mold frame M (see FIG. 7B).
Then, concrete is placed on the mold M to form the drainage pipe penetration type retaining wall building block A.
[0059]
[Third Embodiment]
The formwork and manufacturing method of the present invention can also be applied to molding a drainage pipe penetration type retaining wall construction block (so-called H-type or I-type block) having a single retaining wall as shown in FIG. .
FIG. 8 is a perspective view showing a mold used in the third embodiment, where (A) shows a state before assembly, and (B) shows a state after assembly.
[0060]
The form frame M includes a front frame member M1 for forming the front wall 1 of the block A1, an upper frame member M2 and a lower frame member M3 for forming the upper and lower portions of the block A1, and a right recess 5 of the block A1. And a right frame member M4 and a left frame member M5 for forming the left recess 6 (see FIG. 8A).
[0061]
In the first and second embodiments, the upper frame member M2 and the lower frame member M3 are assembled by sliding with respect to the front frame member M1.
Although it is naturally possible to slide in the third embodiment, in this embodiment, another method, that is, the upper frame member M2 and the lower frame member M3 are connected via a hinge structure (not shown). The case where it was attached to the front frame member M1 was shown.
[0062]
Incidentally, the right frame member M4 and the left frame member M5 can of course be similarly attached to the front frame member M1 via the hinge structure, but FIG. 8A shows the case of the slide type for convenience.
Needless to say, as in the first and second embodiments, the upper frame member M2 and the lower frame member M3 can be of a slide type.
[0063]
The right frame member M4 and the left frame member M5 are provided with convex portions M41 and M51 for forming the hole 4 in the retaining wall 3.
In this embodiment, a concave receiving portion M42 and a concave receiving portion M52 are formed in a semicircular shape for gripping the drain pipe P at the tip portions of the convex portion M41 and the convex portion M51.
The front frame member M1 is formed with a hole M11 through which the drain pipe P is inserted and erected.
[0064]
Next, as a procedure for forming the drainage pipe penetration type retaining wall construction block A1, first, the drainage pipe P is inserted through the hole M11 of the front frame member M1, and the right frame member M4 and the left frame are erected. The member M5 is slid to bring the convex portion M41 and the convex portion M51 into contact with each other.
Then, the upper frame member M2 and the lower frame member M3 are erected in a state where the drainage pipe P is gripped by the concave receiving portion M42 and the concave receiving portion M52, and the frame member is assembled to form the mold M [FIG. )reference〕.
[0065]
And if concrete is poured and solidified, the block A1 for drainage pipe penetration type retaining wall construction shown in FIG. 2 can be shape | molded.
In the third embodiment, the case where the drain pipe P is formed so as to penetrate substantially the center portion of the block A1 is shown. However, as in the first and second embodiments, the drain pipe is formed. Of course, various modifications such as forming the pipe P to penetrate the block A1 at other positions and angles are possible.
[0066]
[Fourth Embodiment]
In the above-described embodiment, the box-like convex portions M21 and M31 (see FIG. 3 and the like) of the upper frame member M2 and the lower frame member M3, and the convex portions M41 and M51 of the right frame member M4 and the left frame member M5 [ A concave receiving portion for gripping the drainage pipe P was directly formed at the tip portion of FIG.
Therefore, when there is a change in the standard (hole diameter, etc.) of the drainage pipe P, or when the mounting angle is changed, the frame member itself with the concave receiving portion must be replaced, which is inconvenient. There are cases.
[0067]
In such a case, it is possible to easily replace it by adopting a structure in which only the periphery of the concave receiving portion can be attached and detached, and it is possible to appropriately cope with the above change.
Hereinafter, description will be made based on the formwork used in the manufacturing method of the so-called H-type (I-type) block shown in FIG.
[0068]
FIG. 9 is a perspective view showing a mold having a detachable structure in which the periphery of the concave receiving portion is a nesting member.
FIG. 10 is a perspective view showing various nesting members used in the mold shown in FIG. 9 (showing the nesting member N2 fixed to the left frame member).
[0069]
The mold M is formed with a front frame member M1 in which a hole M11 is formed, an upper frame member M2 and a lower frame member M3 attached to the front frame member M1 via a hinge structure, and convex portions M41 and M51. A right frame member M4 and a left frame member M5 (see FIG. 9).
In this embodiment, the convex portion M51 of the left frame member M5 is formed with a fitting portion M53 which is a recess for fittingly fixing the nested member N2 in which the semicircular concave receiving portion M52 is formed. Has been.
[0070]
Of the wall surface of the nesting member N2, when the surface on which the concave receiving portion M52 is formed is viewed as the front surface, the side surface is formed in a tapered shape, and on the back surface, for example, a nut portion for screwing a bolt ( (Not shown) is formed.
The fitting portion M53 of the left frame member M5 is formed in a tapered shape so that the telescoping member N2 is fitted.
[0071]
As shown by the arrow in FIG. 9, the telescopic member N2 is inserted into the fitting portion M53 of the left frame member M5, and is screwed and fixed from the back with a bolt.
Similarly, also in the right frame member M4, the telescopic member N1 in which the concave receiving portion M42 is formed is inserted into the fitting portion M43 formed in the convex portion M41, and is screwed and fixed with a bolt (in FIG. 9). It shows a state where it is already fitted and fixed).
[0072]
By forming in this way, it is possible to replace the nested member N1 and the nested member N2.
Further, as shown in FIG. 10, the nested member N2 (and N1) has the same shape except for the concave receiving portion M52, and the diameter of the concave receiving portion M52 is further increased [see FIG. 10 (B). ], By reducing the diameter (see FIG. 10 (C)) or changing the angle of the concave receiving portion M52 (see FIG. 10 (D)), it is possible to accurately change the specifications of the drainage pipe. It becomes possible to make it correspond.
[0073]
Incidentally, the nesting member N2 of FIG. 10 (A) is the same as the nesting member N2 shown in FIG.
In addition, by inserting and fixing the nesting members formed with the concave receiving portions M22 and M32 to the box-shaped convex portions M21 and M31 of the upper frame member M2 and the lower frame member M3 of the mold M shown in FIG. Needless to say, the so-called box-shaped block A shown in FIG. 1 can also respond appropriately to changes in the drainage pipe standards and the like, as described above.
[0074]
Although the present invention has been described above, the present invention is not limited to the embodiments, and it goes without saying that various other modifications are possible without departing from the essence thereof.
[0075]
For example, in the above-described embodiment, the so-called box-type block (see FIG. 1) and the H-type (I-type) block (see FIG. 2) have been described. Of course, it is applicable also to a manufacturing method and the formwork used for it.
In addition, the hole M11 of the front frame member M1 described in each embodiment is inserted through the drainage pipe P, and is inserted into the drainage pipe P instead of the hole M11. It is also possible to provide a protrusion capable of erecting the extraction pipe P.
[0076]
Further, in the fourth embodiment (including the case where it is applied to the mold shown in FIG. 3), the nesting member has another structure, or the right frame member M4 and the convex portion M41 of the left frame member M5 and It is also possible to use M51 itself, or the box-like convex portions M21 and M31 themselves of the upper frame member M2 and the lower frame member M3 so as to be exchanged in whole or in part (in this case, the convex portion). The whole or part of M41 or the like corresponds to the nesting member).
Furthermore, it is natural that the front frame member M1 of FIG. 3 is formed with irregularities or stones so that a pattern is exposed on the front wall surface of the retaining wall construction block A or a decorative stone is raised. Is to be done.
[0077]
【The invention's effect】
According to the manufacturing method of the block for constructing a drainage pipe penetration type retaining wall and the mold used therefor according to the present invention, the frame member of the mold securely holds the drainage pipe at a predetermined position at the stage of molding the block. Therefore, it becomes possible to accurately shape the drain pipe so as to penetrate through the front and rear of the block.
Therefore, at the time of manufacture, the drain pipe is held by the frame member of the mold, so that there is no fear of displacement until the concrete placed on the mold is solidified.
[0078]
In addition, after manufacturing as a retaining wall building block, a drain pipe is integrally embedded in the block and fixed with concrete.
Therefore, even during construction of the block retaining wall, after completion as a retaining wall, even if vibration or impact is applied, there is no worry that the drain pipe will come off and slip out, and the block can be handled easily, In addition, there is an advantage that the fixing of the drain pipe can be stably maintained.
Further, since it is not necessary to form a drain hole in the retaining wall of the block, it is not necessary to form the retaining wall thicker than necessary.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration example of a water drainage pipe penetration type retaining wall construction block.
FIG. 2 is a perspective view showing another configuration example of the drainage pipe penetration type retaining wall construction block.
FIG. 3 is a perspective view showing a frame member of a mold used in the first embodiment of the present invention.
4 is a perspective view showing a state in which the drain pipe is gripped by assembling the upper frame member and the lower frame member of the mold shown in FIG. 3; FIG.
FIG. 5 is a perspective view showing a state in which each frame member of the mold shown in FIG. 3 is assembled in a state where a drain pipe is held and a mold is formed.
6 is a perspective view showing a state in which concrete is placed on the mold shown in FIG. 5 to produce a drainage pipe penetration type retaining wall construction block. FIG.
FIG. 7 is a perspective view showing a frame member of a mold used in the second embodiment of the present invention.
FIGS. 8A and 8B are perspective views showing a mold used in the third embodiment. FIG. 8A shows a state before assembly, and FIG. 8B shows a state after assembly.
FIG. 9 is a perspective view showing a mold having a detachable structure in which the periphery of the concave receiving portion is a nesting member.
10 is a perspective view showing various nesting members used in the mold shown in FIG. 9. FIG.
FIG. 11 is a perspective view showing an example of a conventional retaining wall construction block in which a drain hole penetrating the retaining wall in the front-rear direction is formed.
FIG. 12 is a perspective view showing an example of a conventional retaining wall construction block of a type in which a drain pipe is inserted into through holes in the front wall and the rear wall.
FIG. 13 is an explanatory view showing a procedure for manufacturing the retaining wall building block shown in FIG. 12;
[Explanation of symbols]
A, A1 ... Drain pipe penetration type retaining wall building block
B ... Conventional retaining wall building block
C ... Drain hole
D1, D2 ... through holes
M ... Formwork
M1 to M5 ... Frame members
M1 ... Front frame member
M11 ... hole
M2 ... Upper frame member
M21 ... Box-shaped convex part
M22 ... concave receiving part
M23: Contact surface
M3 ... Lower frame member
M31 ... Box-shaped convex part
M32 ... concave receiving part
M33: Contact surface
M4 ... Right frame member
M41 ... convex part
M42 ... concave receiving part
M43 ... insertion part
M5 ... Left frame member
M51 ... convex part
M52 ... Concave receiving part
M53 ... Insertion section
N1, N2 ... Nested member
P ... Drain pipe
1 ... Front wall
2 ... Back wall
3 ...
4 ... Hole
5 ... Right recess
6 ... Left recess
7 ... Interior space
10 ... Formwork
20-70 ... Frame member
21, 71 ... Projection

Claims (4)

A method for manufacturing a retaining wall building block that is molded using a mold made of a plurality of frame members, wherein the drainage pipe is embedded in a predetermined position of the retaining wall building block to be penetrated. In the state where the drainage pipe is held, the frame member is assembled to form the mold, and then the concrete is placed in the mold, the concrete is cured, and the drainage pipe is embedded integrally.
A plurality of frame members form a front frame member for forming the front wall of the retaining wall building block, an upper frame member and a lower frame member for forming the upper part and the lower part, and a right concave part and a left concave part The right frame member and the left frame member,
The upper frame member and the lower frame member are slidable with respect to the front frame member,
The drainage pipe is gripped by the upper frame member and the lower frame member provided with a semicircular concave receiving portion that forms a cylindrical through hole having an inner diameter equal to the outer diameter of the drainage pipe. A method for manufacturing a wall building block. A method for manufacturing a retaining wall building block that is molded using a mold made of a plurality of frame members, wherein the drainage pipe is embedded in a predetermined position of the retaining wall building block to be penetrated. In the state where the drainage pipe is held, the frame member is assembled to form the mold, and then the concrete is placed in the mold, the concrete is cured, and the drainage pipe is embedded integrally.
A plurality of frame members form a front frame member for forming the front wall of the retaining wall building block, an upper frame member and a lower frame member for forming the upper part and the lower part, and a right concave part and a left concave part The right frame member and the left frame member,
The upper frame member and the lower frame member are attached to the front frame member so as to be able to stand up by a hinge structure,
The drainage pipe is gripped by the right frame member and the left frame member provided with a semicircular concave receiving portion that forms a cylindrical through hole having an inner diameter equal to the outer diameter of the drainage pipe. Manufacturing method of block for wall construction.   The method for manufacturing a retaining wall building block according to claim 1 or 2, wherein the front frame member is provided with a hole for standing a drain pipe.   3. The concave receiving portion is formed in a nesting member that can be attached to and detached from the right frame member and the left frame member, and drain pipes having different sizes can be selectively replaced by the nesting member. Of manufacturing a retaining wall building block.

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