JP2002332648A - Precast concrete block with angle adjustment and gravity retaining wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce working processes during execution or form working and assembly work, enhance strength and safety, and aim at a reduction in construction cost and multi-purpose use. SOLUTION: In a precast concrete block with angle adjustment, a finished front precast concrete plate 1 and a rear precast concrete plate 2 different from the plate 1 are assembled from an iron plate fixing bolt 3 and a coupling iron plate 4, and an angle adjusting plate 5 and an angle adjusting scale hole 6 are adjusted to fix an angle. In an execution method, this work makes the concrete blocks undergo row assembling or step assembling, for the purpose of making the concrete blocks coupled for integration by means of a coupling bolt screw and a coupling plate, and performing concrete filling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast gravity retaining wall and a method of manufacturing the same.

[0002]

2. Description of the Related Art Gravity-type retaining walls are usually constructed by cast-in-place concrete, masonry and concrete blocks, and precast L-shapes. However, a great deal of labor, skilled technical skills, and much more construction costs are required for the setup work. Questions remain regarding the safety of the required content. For cast-in-place concrete, formwork processing, assembly work, formwork support, temporary scaffolding, concrete placement, concrete curing, formwork dismantling, formwork dismantling, repair, temporary scaffolding And many work processes are required, which requires enormous amounts of materials, workers and work days. In the case of a leaning gravity retaining wall, masonry and concrete block are mainly used.The process is to install the foundation concrete diagonally, and place one or two steps of stone or concrete block on the backside with stones. Temporarily fix and cast concrete and backfill,
Since the stone or concrete block is heavy, it is difficult to assemble it and it is impossible to connect it with danger.
In addition, when concrete is poured, concrete pressure is applied to the piled stones or concrete blocks, and demolition and harami are likely to occur. In the case of precast L-type, after placing the foundation concrete, it is necessary to install a large crane in the process of hanging and laying it with a large crane etc., making it difficult to use in narrow places, Construction is limited, and safety management of the excavated surface is required until the precast L-shaped installation.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised for versatile use with the aim of reducing the number of steps during construction, reducing formwork and assembling steps, increasing safety and reducing costs. In particular, by fixing the slope of the slope, assembling it in a flat place, raising it, stacking it, connecting it, without relying on skilled workers,
Anyone can work, pile up many steps at a time, cast concrete, and backfill immediately after curing, so safety can be improved and cost reduction can be realized, precast concrete block with angle adjustment I will provide a.

[0004] The present invention has been devised for versatile use with the aim of reducing the number of steps during construction, reducing formwork and assembling steps, increasing safety and reducing costs. In particular, anyone can work without relying on skilled workers by fixing the slope of the inclined surface, assembling it in a flat place, raising it, stacking it, and connecting and constructing it,
A method of constructing precast concrete blocks with angle adjustment, which enables piles of many steps at one time and concrete can be cast and backfilled immediately after curing, which increases safety and reduces costs.

SUMMARY OF THE INVENTION

[1] The front precast concrete plate of 1 is different in width from the decorative precast concrete plate of 2) The rear precast concrete plate is different in width by using 3 iron plate fixing bolts or 4 connecting iron plates and further adjusting the 5 angle adjustment plate and 6 angle adjustment scale holes. Fix the angle to.

[0006] The above work, the two rear precast concrete plates having a width different from that of the decorative front precast concrete plates, facilitates construction on a curve.

[0007] By the above-mentioned operation, the rows and columns are formed.

FIG. 3 is connected and integrated using a 7 connection bolt screw and an 8 connection fixed iron plate. By being able to connect, it becomes possible to withstand the concrete pressure at the time of concrete casting, and the strength is increased by spreading the concrete filling to every corner.

[0008] By the above-mentioned work, it is easy to improve the workability of a row or column set more than before.

[0009] The above-mentioned work makes it possible to reduce the number of working days and the number of workers, thereby increasing the safety of the work and realizing a reduction in the construction cost by the above steps.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings based on embodiments.

[1] The angle of the pre-cast concrete plate with a different width from that of the decorative front pre-cast concrete plate of [2] with the use of [3] iron plate fixing bolts or [4] connecting iron plates, and further adjusting the 5-angle adjustment plate and 6-angle adjustment scale holes Fix this integrated block in rows or columns

FIG. 3 is connected and integrated using a 7 connection bolt screw and an 8 connection fixed iron plate.

[0011]

[Fig. 5] In the case of a leaning gravity type retaining wall, after crushing 14 foundation stones, 13 foundation concrete is poured horizontally, and a concrete foundation for preventing displacement is provided on the front side, and on it

[0010] Step is performed.

According to the above, after stacking about three or four stages

[FIG. 5] Pour 9 pieces of concrete or 10 pieces of backfill concrete. Also, connect and integrate using 7 connection bolt screw and 8 connection fixed iron plate and repeat the above work to construct to the specified height

[0013]

FIG. 6 shows a case of a precast L-type retaining wall of 1) using a decorative front precast concrete plate, 2) using a rear precast concrete plate, 3) using an iron plate fixing bolt or 4) connecting iron plate, and further using a 5 angle adjusting plate and 6). Adjust the angle adjustment graduation holes and set them at a right angle to perform row or column construction.

[0014]

[FIG. 6] After constructing 15 foundation crushed stones, 16 reinforcing bars are laid, 17 foundation bottom plates are constructed, and 19 vertical reinforcing bars are arranged.

The above operation is carried out to connect and integrate using 7 connection bolt screws and 8 connection fixed iron plates. After stacking about 3 or 4 steps, cast 20 pieces of concrete, and after curing, backfill crushed stones to perform backfill work. In addition, the above work is repeated and the work is performed up to the designated height.

[0015]

In the case of the gravity type retaining wall shown in FIG. 7, (1) the front precast concrete plate having a different width from the decorative front precast concrete plate, (2) the rear precast concrete plate, (3) the fixing bolt for the iron plate, or (4) the connecting iron plate with different lengths, and further adjust the angle by five angles. Adjust the plate and 6-angle adjustment scale holes to set them at right angles, and assemble them.

[0016]

FIG. 7: After constructing 21 foundation crushed stones, 22 rebar arrangement work, 23 foundation bottom plates are constructed, further 24 longitudinal reinforcements are arranged,

The above operation is performed, and the connection is integrated by using a 7 connection bolt screw and an 8 connection fixed iron plate. After putting in 25 pieces of concrete and curing, the backfill crushed stones are compacted and backfilled. In addition, the above work is repeated and the work is performed up to the designated height.

[0017]

In the case of a gravity type retaining wall such as a sabo dam, two types of precast concrete blocks with angle adjustment are set.

Work, and

The operation of [1] is performed. Further, 27 foundation crushed stones are constructed, 28 and 29 foundation concretes are constructed, and two types of precast concrete blocks with angle adjustment are arranged in rows or columns, and stacked in three or four levels, and
Connect and integrate using a connecting bolt screw and an 8 connecting fixed iron plate. After that, fill the concrete with 30 pieces of concrete, and after compaction, compact the backfill crushed stone and perform the backfilling work. Repeat the above work to construct the specified height.

[0018]

Since the present invention is configured as described above, the following effects can be obtained.

By assembling the precast plate with angle adjustment, the conventional gradient staking is not required, and therefore, any worker or anybody can be piled up.

By assembling and connecting the precast concrete plate with angle adjustment, it can withstand the pressure at the time of concrete filling, thereby eliminating dismantling and harami etc. caused by concrete casting, and filling concrete to every corner. Things become possible.

The use of a precast concrete plate with an angle adjustment makes it possible to construct a curve or to stack a curve.

By using a precast concrete plate with an angle adjustment, it is possible to reduce the formwork processing and formwork assembly.

By using a precast concrete plate with an angle adjustment, the concrete is cast and cured, and then backfilling is performed, so that the formwork support and temporary scaffolding can be reduced.

According to the present invention, the above steps enhance the safety.

According to the present invention, a reduction in the construction cost can be realized by the above steps.

As described above, the present invention can be used for multiple purposes.

[0027]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a precast concrete block with an angle adjustment.

FIG. 2 is a perspective view showing an embodiment of a precast concrete block with an angle adjustment.

FIG. 3 is a rear view showing an embodiment of an angle-adjustable precast concrete block.

FIG. 4 is a top plan view showing an embodiment of a precast concrete block with angle adjustment.

FIG. 5 is a longitudinal sectional view showing an embodiment of a leaning gravity type retaining wall of a precast concrete block with an angle adjustment.

FIG. 6 is a longitudinal sectional view showing an embodiment of a precast L-shaped retaining wall of a precast concrete block with an angle adjustment.

FIG. 7 is a longitudinal sectional view showing an embodiment of the gravity type retaining wall of the precast concrete block with angle adjustment.

FIG. 8 is a longitudinal sectional view showing an embodiment of a gravity type retaining wall such as a sabo dam of a precast concrete block with an angle adjustment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 decorative front precast concrete plate 2 rear precast concrete plate 3 iron plate fixing bolt 4 connecting iron plate 5 angle adjusting plate 6 angle adjusting graduation hole 7 connecting bolt screw 8 connecting fixing iron plate 9, 19, 25, 30, concrete filling 10 backfill concrete 11 Drainage pipe 12, 20, 26, backfill crushed stone 13, 17, 23, 28, 29, foundation concrete 14, 15, 21, 27, foundation crushed stone 16, 22, low reinforcing bar reinforcement 18, 24, vertical reinforcement muscle

Claims (2)

[Claims] An angle of a rear precast concrete plate having a width different from that of a decorative front precast concrete plate is adjusted using a connecting iron plate material, an angle adjusting plate, and an angle adjusting scale, and is fixed with fixing bolts. An angle-adjustable precast concrete block connected to and fixed to the top and bottom and left and right connection fixed iron plate with connection bolt screws on the back side of the plate. 2. A decorative precast concrete plate having a width different from that of the decorative front precast concrete plate, the angle of which is adjusted by using a connecting iron plate material, an angle adjusting plate and an angle adjusting scale, and fixed with fixing bolts. A gravity-type retaining wall that is connected to and fixed to the top, bottom, left, and right connecting fixed iron plates with connecting bolt screws on the back side of the plate, and is then filled with concrete and compacted for construction.