JP2563092B2 - How to build a masonry retaining wall - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method of constructing a masonry retaining wall using natural stone.

[0002]

2. Description of the Related Art Conventionally, a retaining wall is classified into a reinforced concrete structure, a reinforced concrete structure, a kneading structure, etc. according to the material and shape. Thoroughly investigate and understand the impact,
Furthermore, it is considered important to consider related technical standards.

Further, an outline will be explained together with classification of various retaining walls. Firstly, concrete block retaining walls and Machiishi retaining walls, which have been widely used in the past, are simple retaining walls in which concrete blocks or Machi stone are stacked. And the linearity can be changed freely, and it is easy to prevent gluing and to engage with structures.

Next, there is a gravity type retaining wall, which is a retaining wall that resists earth pressure due to the weight of the retaining wall itself, and does not generate a tensile force greater than the concrete allowable tensile force in the retaining wall wall body. , Is used when the foundation ground is good.

Next, there is also a leaning type retaining wall, which is an intermediate type between a concrete block structure / sight stone type retaining wall and a gravity type / semi-gravity type retaining wall. Like a retaining wall, it cannot stand on its own,
Mainly used for cut soil, and there are reinforced concrete and reinforced concrete structures.

Next, there is a semi-gravity type retaining wall, which is similar to the gravity type retaining wall, but in order to save the amount of concrete, a small amount is provided near the rear surface of the retaining wall against the tensile force generated in the body. It was made to put the rebar of and to resist. Here, since the only element that resists the earth pressure applied to the semi-gravity type retaining wall together with the gravity type is the weight of the wall body of the retaining wall itself,
It is uneconomical to build a tall retaining wall with this type of retaining wall.

Subsequently, there is also a cantilever type retaining wall, which is composed of a vertical wall and a bottom slab, and its structural type includes an inverted T type and an L type. In addition, the wall has a reinforced concrete structure, and this type of retaining wall can effectively use the weight of backfill soil, and the cross section of the wall can be smaller in the gravity type than in the semi-gravity type.

Furthermore, there is a retaining wall type retaining wall, which is an improvement of the cantilever type retaining wall in that the earth pressure increases as the height of the retaining wall increases, resulting in an uneconomical cross section. hand,
A triangular retaining wall is inserted between the back wall of the vertical wall of the cantilever type retaining wall and the bottom slab, and the vertical wall and the bottom slab are fixed on three sides.

On the other hand, for the design and construction of the above-mentioned various retaining walls, standards such as the residential land development regulation law, the city planning law and the building standard law are established.

[0010]

Problems to be Solved by the Invention The construction surface of various retaining walls other than the Machichi stone retaining wall described in the above-mentioned conventional description has a color unique to concrete, presenting an artificial landscape, and time passes. However, there is a problem that the natural landscape is significantly impaired over a long period of time because the property does not change and it is not greened.

In addition, the sillite stone retaining wall described in the above-mentioned section of the prior art, the sillice stone used for the retaining wall has a surface side length of 25 cm to 40 cm and a length of 35 cm.
It is a truncated pyramid shaped stone with a size of centimeters to 60 centimeters or more, and it needs to be carefully quarried so that there are no irregularities on each side, and it takes a very long time to process,
There is a problem that it is difficult to secure a large amount of philanthropic stones while satisfying the same standards.

Although not described in detail in the section of the prior art, the types of masonry include masonry masonry, field stone masonry, miscellaneous masonry, and stone masonry. Although the name is changed according to the degree of processing to stone, the one with a lower degree of processing to stone had lower adhesion to the stones in the masonry, and there was a safety problem because the retaining wall work was dangerous. .

Therefore, the present invention has been made in view of the above drawbacks and the like, and an object of the present invention is to obtain a natural stone for use in the masonry of the present invention by a simple processing operation and to provide the natural stone. The object is to provide a new method of constructing a masonry retaining wall that provides a good landscape and is highly safe against earth pressure in the construction mainly of stone masonry.

[0014]

In order to achieve the above object, the method of constructing a masonry retaining wall according to the present invention has the following constitution.

First, the method of constructing a masonry retaining wall according to the present invention comprises a foundation step of excavating the ground surface of the slope end portion of the masonry retaining wall to be put into effect and placing a concrete foundation, and preliminarily drilling. The base of the grip anchor is wedged into the insertion hole, the rope is attached to the wedged grip anchor, and a natural stone is attached to the other end of the rope with a plate steel plate through a turnbuckle. Arrangement process of natural stones arranged in parallel, backfilling the backfill material on the back side of the slope formed by the natural stone, and further creating earth and sand between the backfill material and the protection slope, and the rope body Embedding the drawn plate-shaped steel plate perpendicularly to the drawing direction of the rope body, and then a rolling step of rolling with the constructed earth and sand while the rope body is further stretched in the turnbuckle, Then, after that, padding material is prepared for the next natural stone pile up. With adjustment of the height by some natural stones, and summarized in that forming retaining walls subjected repeatedly arranging step and compacting step of the natural stones according to the setting gradient.
In addition, the construction method is known as a widely known technique. A permeate pipe is installed to treat the permeated water, and backfilling concrete is filled through the gap between the natural stones piled up as described above. It can also be enforced together.

Secondly, in the method of constructing a masonry retaining wall according to the present invention, a foundation step of excavating the ground surface and placing a concrete foundation, and a base portion of the grip anchor is wedged in a pre-drilled insertion hole. The natural stones are arranged in parallel with each other at a predetermined interval by the natural stones that are connected and connected to each other by the rope body via the turnbuckle between the grip anchors of the pair of natural stones. Backfill material is backfilled on the back side of the slope formed by stone, and earth and sand are created between the backfill materials, and the rope body is stretched with the turnbuckle and rolled with the earth and sand. In addition to the rolling process of pressing and then adjusting the height with the natural stone that is the filling material in preparation for the stacking of the next stage natural stone,
The gist is to form a stone wall by repeating the above-mentioned natural stone placement step and rolling step according to the set gradient. Furthermore,
The above construction method is known as a widely known technique. It is also possible to combine the treatment of infiltrated water with a water permeable pipe and the filling of backfill concrete from the gap between the natural stones piled up as described above.

[0017]

First, the natural stone used in the method for constructing a masonry retaining wall according to the present invention has the base of the grip anchor wedged into an insertion hole previously formed in the natural stone, and the wedge anchored to the wedge anchor. A rope body is connected, and a plate-shaped steel plate is connected to the other end through a turnbuckle in the middle of the rope body, and the plate-shaped steel plate is embedded perpendicularly to the extending direction of the rope body. In addition, since the rope body is rolled with the turnbuckle while being stretched, the tensile force acts on the rope body against the pushing force of earth pressure to stabilize the masonry retaining wall. Acts to hold.

Next, another natural stone used in another method for constructing a masonry retaining wall of the present invention is a pair of natural stone grip anchors in which the base of the grip anchor is wedged in a pre-drilled insertion hole. Is connected and connected by a rope body through a turnbuckle in the middle of, and the rope body between the pair of natural stones is stretched to have a predetermined interval, and the rope body is stretched with a turnbuckle. Since it is compacted with the constructed earth and sand as it is formed, the tensile force against the pushing force of earth pressure acts on the rope body to stably hold the masonry retaining wall.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings. First, FIG. 2 is a cross-sectional view showing a one-stage construction outline of a masonry retaining wall according to the present invention. In the figure, the slope 1 to be used for protection has been smooth-shaped in advance to a predetermined slope, while the surface of the slope end where the masonry retaining wall is to be constructed has been excavated and the concrete foundation 2 has been placed. . The natural stone 3 is washed with water to wash away the attached mud, and the base of the grip anchor 5 is wedged in the insertion hole 4 previously drilled in the natural stone 3, so that the grip anchor 5 is wedged. The rope body 8 is connected, and the plate-shaped steel plate 7 is connected to the other end of the rope body 8 via the turnbuckle 6 in the middle. Next, although it is not shown, the table tension that shows the prescribed slope due to the masonry retaining wall,
The natural stones 3 are arranged according to the tensioning such as the back tensioning provided on the back side of the backfilling, and the gravel is backfilled as the backfilling material 9 on the back side of the slope formed by the natural stones 3. Furthermore,
Between the backfill material 9 and the slope 1, a sand 10 is formed as shown in the figure. Subsequently, the rope body 8 to which the plate-shaped steel plate 7 is connected is stretched to embed the plate-shaped steel plate 7 so as to be perpendicular to the extending direction of the rope body 8, while the turnbuckle 6 is pushed to rotate the rope body. The length of 8 is shortened and the rope body 8 is rolled together with the constructed earth and sand 10 while the rope body 8 is in a stretched state.

Next, FIG. 1 is a sectional view showing an outline of construction of a masonry retaining wall according to the present invention. Masonry retaining wall 3 shown in the figure
Is formed by repeatedly performing the steps of arranging the natural stones 3 and rolling the created earth and sand 10 and the step of adjusting the height with the filling material 11 which is a natural stone in preparation for the stacking of the next-stage natural stones 13. It was done. On the other hand, reference numeral 12 in the figure is a soil cover 12 which opposes the sliding of the masonry retaining wall 13. Further, reference numeral 14 is a water permeable pipe 14, which drains permeating rainwater and spring water on the back surface of the masonry retaining wall 13, and is preferably provided in a staggered manner at a ratio of about one place per 3 square meters of the wall surface. Further, reference numeral 15 is backfill concrete 15,
If the stone masonry retaining wall 13 is made integral by filling the gaps between the natural stones 3 piled up as shown in the figure, it can be constructed as a safer retaining wall.

Next, FIG. 4 is a sectional view showing a one-step construction outline of another masonry retaining wall according to the present invention. In the figure, the surface of the masonry is excavated and the concrete foundation 2 is placed. The natural stone 3 is washed with water to wash away the attached mud, and the base of the grip anchor 5 is wedged to the insertion hole 4 which is pre-drilled. Turnbuckle 6
It is connected and connected by the rope body 8 via.
Next, although not shown in the figure, a front tension that shows the prescribed slope of the masonry retaining wall and a back tension that is provided on the back side of the backfill will be provided along the planned stone wall. . Subsequently, the rope bodies 8 between the natural stones 3 are stretched to be arranged in parallel so that the respective natural stones 3 of the pair of natural stones 3 substantially match the front and rear sides provided with each other. Gravel is backfilled as backfilling material 9 on the back side of the slope formed by natural stone 3. Further, the earth and sand 10 are formed in the recesses between the backfilling materials 9 arranged in parallel, and the turnbuckle 6 is pushed around again to reduce the length of the rope body 8 so that the rope body 8 is in a stretched state and the mutual front and back surfaces are stretched. It is assumed that the surface walls of the natural stones 3 are corrected so as to match the tension and that the constructed earth and sand 10 is compacted.

Further, FIG. 3 is a sectional view showing an outline of construction of another masonry retaining wall according to the present invention. The stone masonry retaining wall 13 shown in the figure is a filling material which is a natural stone for the step of arranging the natural stone 3 and the compaction of the constructed earth and sand 10 composed of a pair of the above-mentioned explanations, and for the next-stage natural stone 3 to be stacked The step of adjusting the height by 11 is repeated. On the other hand, reference numeral 12 in the figure is a cover soil 12 which opposes the sliding of the stone wall 16. Further, reference numeral 14 is a water permeable pipe 14, which drains permeating rainwater and spring water on the back surface of the masonry retaining wall 13, and is preferably provided in a staggered manner at a ratio of about one place per 3 square meters of the wall surface. Further, reference numeral 15 is backfill concrete 15, which is a natural stone 3 stacked as shown in the figure.
If the masonry retaining wall 13 is made integral by filling from the gap between them, the masonry retaining wall 13 can be constructed even more safely.

[0023]

The masonry retaining wall and the method for constructing a masonry retaining wall according to the present invention are constructed as described above, and therefore have the following effects.

First, according to the method of constructing a masonry retaining wall according to the present invention, the base portion of the grip anchor is wedged in the insertion hole previously drilled in the natural stone, and the rope is attached to the grip anchor anchored in the wedge. The body is connected, and a plate-shaped steel plate is connected to the other end through a turnbuckle in the middle of the rope body,
Since the plate-shaped steel plate is embedded perpendicularly to the extending direction of the rope body and is rolled with the constructed earth and sand while the rope body is stretched by the turnbuckle, the earth pressure is pushed out. There is an effect that the tensile force against the rope acts on the rope body to stably hold the masonry retaining wall.

Secondly, according to another method for constructing a masonry retaining wall of the present invention, an intermediate hole between a pair of natural stone grip anchors in which a base of the grip anchor is wedged in a pre-drilled insertion hole. The rope body is connected and connected via a turnbuckle, and the rope body between the pair of natural stones is stretched to have a predetermined distance, and the rope body is kept in a stretched state with the turnbuckle. Since it is compacted together with the constructed earth and sand, there is an effect that the tensile force against the pushing force of the earth pressure acts on the rope body to stably hold the masonry retaining wall.

Further, according to the method for constructing a masonry retaining wall according to the present invention, even if the construction volume per day is high, the construction method wall can be protruded to the front like a normal kneading and retaining wall. Since it does not exist, there is also an effect that the retaining wall can be constructed continuously.

Next, the natural stone used in the method for constructing a masonry retaining wall according to the present invention does not need to be processed into a truncated pyramid shape like Machichi stone, and has a size as a natural stone. Also, since it is not necessary to strictly adjust, there is an effect that it can be easily obtained as a material.

[Brief description of drawings]

FIG. 1 is a sectional view showing an outline of construction of a masonry retaining wall according to the present invention.

FIG. 2 is a cross-sectional view showing a one-step construction outline of a masonry retaining wall according to the present invention.

FIG. 3 is a sectional view showing a construction outline of another masonry retaining wall according to the present invention.

FIG. 4 is a sectional view showing a one-stage construction outline of another masonry retaining wall according to the present invention.

[Explanation of symbols]

 1 Protection slope 2 Concrete foundation 3 Natural stone 4 Insertion hole 5 Grip anchor 6 Turnbuckle 7 Plate steel plate 8 Rope body 9 Backfill material 10 Earth and sand 11 Filling material 12 Cover soil 13 Stone retaining wall 14 Water permeable pipe 15 Backfill concrete

Claims (2)

(57) [Claims] 1. A foundation step of excavating the ground surface of the slope end of a masonry retaining wall to be constructed and placing a concrete foundation, and a base of a grip anchor is wedged in a pre-drilled insertion hole,
A natural stone arranging process of arranging natural stones in which rope bodies are connected to wedge-shaped grip anchors, and plate steel plates are connected to the other end in the middle of the rope body via a turnbuckle in parallel, Backfilling the backing material on the back side of the slope formed by stone, and further creating earth and sand between the backing material and the protection slope, the rope body is stretched and the plate steel plate of the rope body It is embedded perpendicularly to the drawing direction, and then the rolling step is performed with the turnbuckle to roll the rope body together with the constructed earth and sand while the rope body is further stretched, and then prepare for the next-stage natural stone pile up. A method of constructing a masonry retaining wall, characterized in that the height is adjusted by a natural stone that is a filling material, and a retaining wall is formed by repeatedly performing the natural stone arranging step and the compacting step according to a set gradient. 2. A foundation step of excavating the ground surface and placing a concrete foundation, and a turnbuckle between a pair of natural stone grip anchors in which the base of the grip anchor is wedged in a pre-drilled insertion hole. With the natural stones that are connected and connected by ropes via the natural stones, the natural stones are arranged in parallel at a predetermined interval, and the backing material is lined on the back side of the slope formed by the natural stones. In addition to forming the earth and sand between the backing materials, the compaction process of rolling the rope body with the turnbuckle in the stretched state together with the constructed earth and sand, and then stacking the natural stone in the next stage. It is characterized in that the height is adjusted by a natural stone that is a filling material, and a retaining wall is formed by repeating the step of arranging the natural stone and the rolling step according to a set gradient.
How to build a masonry retaining wall.