JPH0762355B2 - Construction method for large concrete blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is applicable to large-sized retaining wall blocks, drainage gutter blocks, shelf drainage gutter blocks, box culverts, etc. used for making retaining walls, drainage gutters, drainage tunnels, etc. Related to the construction method of the concrete block.

[Conventional technology]

When constructing retaining walls, drainage trenches, drainage tunnels, etc. by arranging large blocks of concrete of this type one after another, transport the blocks to the site with a transportation vehicle (truck), lift them with a truck lane, etc. It will be taken down and will be arranged in order at a predetermined position.

In this case, the front and rear ends of adjacent blocks must be flush with each other, and the vertical heights must also be aligned.

However, since the top of the base is not always horizontal, it is not easy to match the front and rear ends flush with each other or to match the heights of the top and bottom.

Conventionally, a few people (5 to 6 people) intervene an inclusion between the block and the base after moving the block onto the base and move the block to perform positioning work. The work itself was large and heavy, and the work was slow because of poor footing, and it was also dangerous work.

In particular, in the case of a retaining wall block, it is more difficult to make the retaining wall plate flush in order to make the retaining wall look good, and in the case of drainage gutter blocks and box culverts, a drainage gradient is provided in the parallel installation direction. It had to be installed side by side, which was a very troublesome task.

[Problems to be Solved by the Invention]

The present invention solves the above-mentioned drawbacks. It is possible for only a few workers to easily and safely place blocks in a predetermined position efficiently, and keep adjacent walls at the predetermined height flush with each other. The technical issue is to form drainage channels and drainage tunnels.

[Means for Solving the Problems]

 The detailed description will be made with reference to the accompanying drawings.

One or more nuts 2 are embedded near the center of gravity of the bottom plate 1 where the left and right loads of the block body are balanced so that the screw rods 3 can be screwed with the core direction in the vertical direction, and the nut 2 is rotated from above the bottom plate. A large block body a in which a movable rod 3 is screwed to project the lower end 3'of the rod 3 from the bottom surface of the bottom plate 1 and through holes 4 are provided at one or several places of the bottom plate 1 is provided at the position of the screw 3. It is placed on the foundation concrete b on which the liner plate 5 is laid, and if necessary, the base plate 6 such as the roller material, the wedge material and the support material is used to maintain the bottom plate 1 in a substantially horizontal state, and the screw rod 3 is rotated. Then, the height and wall slope of the large block body a are adjusted as desired, and the screw rod 3 is slid on the liner plate 5 by a pushing tool 7 such as a bar to correct the large block body a to a predetermined position, and the Bottom plate of large block a by means A method for constructing a large-sized concrete block characterized by fixing the large-sized block body a onto the basic concrete b by injecting a hardening filler 8 through the through-hole 4 after the space around the space between the basic concrete b is pasted. It is related.

A nut 2 is embedded in the bottom plate 1 near the center of gravity line of the bottom plate 1 where the left and right loads of the block body can be balanced so that the screw rod 3 can be screwed with the axial direction of the bottom plate 1 above. A rotatable screw rod 3 is screwed on so that the lower end of the screw rod 3 is projected from the lower surface of the bottom plate 1, and two through holes 4 having a diameter into which the jacks 9 can be inserted are provided on the front side of the bottom plate 1 on the left and right sides of the center of gravity. A large block body a provided with an appropriate jack support body 10 above the through hole 4 is attached to the screw rod 3 and the through hole 4.
Place it on the foundation concrete b lined with the liner plate 5 at the position of, and jack 9 in the through holes 4 on the left and right.
Lower part of the jack, the upper part of the jack 9 is supported by the jack support 10 and the jack operation is performed to adjust the large block body a to a desired height, and the screw rod 3 is rotated to adjust the wall surface to a desired slope. Then, the screw rod 3 and the jack 9 are slid on the liner plate 5 by the burl to correct the large block body a to a predetermined position, and the periphery of the gap between the bottom plate 1 and the foundation concrete b is glued by an appropriate means and at the same time the base is fixed. After holding the large block body a in an adjusted state by the material 6, the jack 9 is removed, and the hardening filler 8 is introduced from the through hole 4 to fix the large block body a on the foundation concrete b. It concerns the construction method of concrete blocks.

A nut 2 is embedded in the bottom plate 1 near the center of gravity line of the bottom plate 1 where the left and right loads of the block body can be balanced so that the screw rod 3 can be screwed with the axial direction of the bottom plate 1 above. A rotatable screw rod 3 is screwed on so that the lower end of the screw rod 3 is projected from the lower surface of the bottom plate 1, and two through holes 4 having a diameter into which the jacks 9 can be inserted are provided on the front side of the bottom plate 1 on the left and right sides of the center of gravity. The present invention relates to a large-sized concrete block body characterized in that a jack support body 10 for supporting the jack 9 or a holding body 11 for holding the jack support body 10 is provided above the through hole 4.

[Action]

 The invention of claim 1 will be described.

The liner plate 5 is laid at a predetermined position on the basic concrete b.

At this time, it is desirable to place the base material 6 having an appropriate thickness on the left and right.

The large block body a is lowered onto the concrete foundation b by a crane or the like.

The screw rod 3 is rotated to lift the large block body a to a predetermined height.

In this case, when two screw rods 3 are arranged in front and rear, the height is adjusted by the front screw rod 3, and the wall slope is adjusted by the rear screw rod 3.

When the parallel wall surfaces are properly flushed like a retaining wall, the pushing tool 7 is used to slightly slide the screw rod 3 on the liner plate 5 to correct the large block body a to a predetermined position.

This proper installation state is held by selecting and using various base materials 6, and at the same time, the large block body a and the foundation concrete b
After pasting the gaps between them, a hardening filler 8 such as cement milk or epoxy mortar is flown in through the penetration item 4 and hardened to fix the large block body a onto the concrete foundation b.

The invention of claim 2 will be described.

It is the same as in claim 1 until the large rod block a is placed on the base concrete b by positioning the screw rod 3 and the through hole 4 on the liner plate 5 laid on the base concrete b.

Insert the lower part of the jack 9 into the two through holes 4 on the left and right provided near the front side, make the upper part of the jack 9 supported by the jack support body 10, and perform the jack operation (preferably simultaneous left and right) to create a large block body. Since the front side of a is lifted, the height can be adjusted to a predetermined level.

When the screw rod 3 is rotated in that state, the butt is lifted, so the adjustment is made so as to be flush with the slope of the wall surface fixed next to it.

The front-rear positional relationship is corrected by sliding on the liner plate 5 using the burls as described above.

This state is held by the base material 6, and at the same time, the periphery of the gap between the large block body a and the foundation concrete b is pasted,
The jack 9 is removed, and the hardening filler 8 is caused to flow in through the through hole 4 in the same manner as described above, and is hardened to fix the large block body a onto the concrete foundation b.

〔Example〕

In addition to the position where the jack 9 is inserted, it is desirable that the through-holes 4 be distributed in several places in a well-balanced manner in order to speed up the filling of the hardened filler 8.

The jack support 10 in the drawing is a rear reinforcing wall 12 provided on the left and right.
A holding hole (13) is provided in the lateral direction, and the base fitting portion (10 ') of the rod-shaped jack support (10) is press-fitted into the holding hole (13) to form a plate-shaped portion at the tip.
The case where the piston top 9'of the jack 9 is supported by 10 "is shown.

The left and right jack supports 10 may be integrated and provided in a crossed state.

In this case, the reinforcing wall 12 and the holding hole 13 correspond to the holding body 11 of the jack support body 10.

Alternatively, the jack support body 10 may be directly provided on the wall surface so as to integrally project, or a separate body may be provided.

What is essential is that the jack supporter 10 is capable of supporting the lifting portion of the jack 9 and lifting the large block body a.

In the figure, reference numeral 14 is a hoisting hole, 15 is a sealing material, and 16 is a ruler material.

〔The invention's effect〕

Since the present invention is configured as described above, for example, the retaining wall block is placed on the base, and the right and left end portions of the retaining wall plate are exactly abutted with each other and the front surface of the retaining wall plate is in the correct position. When installed side by side with the correct height and correct posture, the block body can easily maintain the correct installation state by adjusting the up and down of the screw rod provided near the center of gravity line that balances left and right. If the large block body a can be lifted by two jacks using the two through holes provided, height adjustment becomes easier, and a liner plate is also used for face-to-face contact with adjacent blocks. This makes it possible to adjust the shear movement, and it is possible to easily make the wall surfaces of the neighbors flush with each other without using a crane or the like, and thus construction efficiency is greatly improved.

In addition, since the hardening filler flows into the gap between the block body and the base caused by this adjustment through the through hole and is hardened, the large block body a is securely fixed on the foundation concrete b. It becomes a construction method for large-scale concrete blocks that exhibits excellent features, and also becomes a large-scale concrete block body that is excellent in practicality.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a side view in which a part of a large retaining wall block body showing an embodiment of the invention of claim 1 is cut away, FIG. 2 is a plan view of the same, FIG. 3 is a side view in which a part of a large retaining wall block body showing an embodiment of the invention of claim 2 is cut away, FIG. 4 is a plan view of the same as above, and FIG. 5 is a plan view of FIG. Rear view, Fig. 6 is a side view of the large block body in which the height is adjusted by operating the jack, and Fig. 7 is a state in which the screw rod is moved up and down to adjust the wall slope and the wall is made flush with the burl. FIG. 8 is a side view of the large block body of FIG. 8, and FIG. 8 is a side view of a state where the hardening filler is injected and the construction is completed. a: Large block, b: Basic concrete, 1 ...
... bottom plate, 2 ... nut, 3 ... screw rod, 3 '... lower end, 4
...... Through hole, 5 ...... Liner plate, 6 ...... Base material, 7
...... Pushing tool, 8 …… Curing filler, 9 …… Jack, 10
…… Jack support, 11 …… Holder.

Claims (3)

[Claims] 1. One or a plurality of nuts are embedded near the center of gravity of a bottom plate capable of balancing the left and right loads of a block body so that a screw rod can be screwed with the core direction being the vertical direction, and the nut is inserted from above the bottom plate. A large block body a having a lower end of the screw rod projecting from the bottom surface of the bottom plate by screwing a rotatable screw rod, and a liner plate laid at a position where the screw rod is provided with a large block body a having through holes at one or several places of the bottom plate. Place it on concrete b, keep the bottom plate in a substantially horizontal state by using base materials such as roller materials, wedge materials, and support materials as necessary, and rotate the screw rod to adjust the height and wall surface of the large block body a. Adjust the gradient as desired, slide the screw rod on the liner plate with a pushing tool such as a bar to correct the large block body a to a predetermined position, and between the bottom plate of the large block body a and the basic concrete b by appropriate means. of Construction methods of large concrete blocks, characterized in that to fix the large block body a on foundation concrete b are allowed flowing curing the curable filler from the through-hole after Mebari the gap around. 2. A nut is embedded near the rear side of the bottom plate near the center of gravity of the block body so that the left and right loads can be balanced, and the nut is embedded in the nut so that the screw rod can be screwed in from above the bottom plate. The bottom of the bottom plate is protruded from the bottom of the bottom plate by screwing a rotatable rod, and two through holes with diameters that allow jacks to be inserted to the left and right of the center of gravity line are provided near the front side of the bottom plate. Above this through hole. A large block body a provided with an appropriate jack support is placed on a foundation concrete b lined with a liner plate where the screw rod and the through hole are located, and the lower part of the jack is inserted into the left and right through holes. The upper part is supported by the jack support and the jack operation is performed to adjust the large block a to a desired height, the screw rod is rotated to adjust the wall surface to a desired slope, and the bar and the liner are used to adjust the screw rod and the jack. The large block body a was corrected to a predetermined position by sliding on the plate, and the periphery of the gap between the bottom plate and the foundation concrete b was stitched by an appropriate means, and at the same time, the large block body a was held in an adjusted state by the base material. A method for constructing a large-sized concrete block, characterized in that the rear jack is removed, and a hardening filler is flown in through the through-hole to fix the large-sized block body a onto the basic concrete b. 3. A nut is embedded near the rear side of the bottom plate near the center of gravity of the block body so that the left and right loads can be balanced, and the nut is embedded in the nut so that the screw rod can be screwed in from above the bottom plate. The bottom of the bottom plate is protruded from the bottom of the bottom plate by screwing a rotatable rod, and two through holes with diameters that allow jacks to be inserted to the left and right of the center of gravity line are provided near the front side of the bottom plate. Above this through hole. A large concrete block body provided with a jack support for supporting the jack or a holding body for holding the jack support.