JP2001342638A - Construction method for base for reinforcing ground, base device for reinforcing ground, and ground reinforcing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a base for reinforcing the ground, a base device for reinforcing the ground, and a ground reinforcing structure capable of simply positioning a top base for reinforcing the ground in the vertical direction with high precision, in a short time, and without requiring much labor and improving the workability greatly. SOLUTION: This base for reinforcing the ground is provided with a guide body erected on the digged ground to be reinforced and being long vertically and a top base for reinforcing the ground lowering and moving from an upper end side of the guide body while it is engaged with and is guided by the guide body. A vertically passing through hole in which the guide body passes through in the vertical direction is drilled at the center of the top base for reinforcing the ground, the top base for reinforcing the ground is lowered and moved from the upper end side of the guide body so that it arrives on a ground face to be reinforced, and its periphery is back filled to form the ground to be reinforced while inserting the upper end side of the guide body into the vertically passing through hole of the top base for reinforcing the ground sequentially. A group of top bases are spreaded and formed on the whole ground surface to be reinforced, and clearance filling stones are filled to form a top base layer, and the top base layers are formed in a plurality of layers to perform the ground reinforcing work with high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a foundation for reinforcing ground support of a foundation part of a building or various structures, a ground reinforcement base device, and a ground reinforcement structure.

[0002]

2. Description of the Related Art Conventionally, when constructing a structure, a foundation is installed to transmit the entire load of the structure to a supporting ground. Depending on the depth of the supporting ground, the foundation can be directly used as a foundation, a pile foundation, or a caisson. There is a method of installing underground. As a simple and primitive method, there is known a traditional construction method in which cobblestones or crushed stones are laid on the ground to be reinforced and load distribution is performed. By the way, for soft ground such as soft clay, loose sandy soil, silt, organic soil, etc., various reinforcement methods different from normal foundation reinforcement are taken, but recently, the lower part of the inverted conical main body is used. There is known a ground reinforcement method that uses a top (top) concrete secondary product in which a driving pile portion is integrally formed to suppress settlement amount and prevent uneven settlement.

[0003]

Problems to be Solved by the Invention FIGS. 10 to 12
Shows a construction method using a conventional piece-like concrete secondary product 100. In this construction method, a ground to be reinforced is excavated, and a driving pile portion 102 of the concrete secondary product is vertically formed on the excavated bottom surface in a direction perpendicular to the ground. The main body 104 having the inverted conical shape is exposed so that only the driving pile portion 102 is erected in the ground so that only the driving pile portion 102 is buried in the ground. It is driven upright over the entire excavated bottom surface so as to be buried in it, and crushed stones and the like are charged from the gap between the adjacent secondary products and packed into the space between the inverted-cone-shaped bodies (FIG. 11).
Thereafter, the soil is back-filled to the required thickness on the upper surface side of the main body 104 and compacted, and the conical-shaped main body 1
The driving pile portion 102 of No. 04 is driven in the vertical direction to expose only the frame-shaped main body portion (FIG. 12), and this is sequentially repeated for the upper layer to construct the reinforcing structure as shown in FIG. However, in the conventional method using the top-concrete concrete secondary product 100, it is difficult to lay and construct the upper-layer product 100 while aligning the lower-layer top concrete secondary product with the straight portion. The operation of driving the product 100 over the entire ground surface to be reinforced and filling the horizontal plane of the upper surface of all the products 100 while stuffing crushed stone from the gap between the cone-shaped tops of the cones is cumbersome and time-consuming. Was high. In addition, these secondary products have a height from the upper surface of the top of the top to the lower end of the pile, for example, 500 mm, and the diameter of the top of the top is about 500 mm. The weight is about 40 kg to 60 kg. However, there has been a problem in that the work of supporting these in a state of being erected one by one is large. In addition, by using a cone-shaped top product having a conical shape having a slope extending upward as described above, it is possible to effectively disperse stress at the slope portion and obtain excellent ground bearing strength. Due to the difficulty of workability, in practice, for example, it is often adopted only at a construction site where only one layer is constructed in the ground, and the scene to which the construction is applied is often limited. In other words, in the construction method using such a piece-like concrete secondary product, it is possible to effectively perform the ground reinforcement for the soft ground by constructing not only one layer but also a plurality of layers in a laminated state, There has been a long-awaited demand for a practically excellent construction method capable of obtaining a stable and high reinforcing force while ensuring good workability of the secondary concrete product.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a method for simply and quickly positioning a ground reinforcement frame base in a vertical direction without requiring labor. It is an object of the present invention to provide a ground reinforcement base construction method, a ground reinforcement base apparatus, and a ground reinforcement structure that can significantly improve workability. Another object of the present invention is to make it possible to easily and easily perform the work of exposing the top surface of the frame base, to reduce the overall work labor, and to maintain the work cost at a low cost while being able to perform the work on soft ground. It is an object of the present invention to provide a ground reinforcement base construction method, a ground reinforcement base device, and a ground reinforcement structure that are excellent in the above.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a plurality of vertically elongated guides 12 are erected on an excavated ground to be reinforced, and a top base for reinforcing a ground in a top shape is provided. 1
4 is moved downward from the upper end side of the guide body while engaging and guiding the guide bases 4 with the respective guide bodies to form a frame base group 200 on the entire ground surface to be reinforced. Fill the stuffing stone to form the first frame base layer 300,
Further, another top frame base 202 for ground reinforcement is moved downward from the upper end side of the guide body while engaging and guiding each of the top boards for ground reinforcement with other guide bodies, and another top frame group 202 is laid and formed on the entire ground surface to be reinforced. Filling the filling stones between the reinforcing frame bases to form a second frame base layer 302, and constructing the ground reinforcing base while sequentially stacking these steps on the upper layer as necessary. It consists of the construction method of the base.

Further, the guide body 12 is a screw shaft body, and is vertically movable while engaging and rotating along the thread and the thread groove of the screw shaft body at the center of the ground reinforcement frame base 14. A vertical through-hole 16 is provided, and the top of the guide 12 is inserted into the vertical through-hole 16 of the ground reinforcement top 14, and the top 12 of the guide body 12 is moved downward while being rotated, and the backfill layer is sequentially placed on the upper side. May be formed.

Further, the present invention provides a vertically elongated guide body 12 erected on the ground to be reinforced to be excavated, and a ground reinforcing frame base which is engaged with the guide body 12 and moves down from the upper end side of the guide body. A base 14 is provided, and a vertical through hole 16 through which a guide body penetrates in a vertical direction is formed in the center of the ground reinforcement top base,
The ground reinforcement piece base 14 is moved down from the upper end side of the guide body 12 to land on the ground surface to be reinforced, the periphery is backfilled, and the guide bodies are sequentially inserted into the vertical through holes of the other ground reinforcement piece bases. And a ground reinforcement base device 10 in which a reinforcement ground is formed while the upper end of the base is inserted.

In the ground reinforcement base device 10,
Upward movement restricting means 18 for restricting upward movement of the ground reinforcement coma base while the guide body 12 is inserted into the vertical through hole 16 of the ground reinforcement coma base 14 may be provided.

In the ground reinforcement base device 10,
The vertical through hole 16 of the ground reinforcement frame base 14 is a screw hole, and the guide body 12 is formed of a screw shaft body that penetrates the screw hole and guides the vertical reinforcement movement of the ground reinforcement frame base 14. It may be.

Further, the ground reinforcing frame base 14 may be made of a hard synthetic resin.

Further, the ground base 14 for reinforcing the ground may be made of a solidified material of molten polystyrene foam.

Further, according to the present invention, a plurality of vertically long guide bodies 12 are erected on the ground to be reinforced to be excavated, and the guide bases 14 for reinforcing the ground in the form of a frame are guided while being engaged with the respective guide bodies 12. The top frame group 200 is laid down on the entire ground surface to be reinforced by moving down from the upper end side of the body, and a filling stone is filled between the frame bases for reinforcing the ground at various places to fill the first frame base layer 30.
0, and the other ground reinforcement top bases 202 are moved down from the upper end side of the guide body while engaging and guiding other ground reinforcement top bases to the respective guide bodies, and the other ground base groups 202 for the entire ground surface to be reinforced.
Laying, filling the gap between the bases for reinforcing the ground in each place with the filling stone to form the second base layer 302, and, if necessary, sequentially stacking these steps for the upper layer. Consists of a reinforcing structure.

In the ground reinforcement structure, the vertical through hole 16 of the ground reinforcement frame base 14 is a screw hole, and the guide 12 penetrates into the screw hole of the ground reinforcement frame base 14 and The frame base 14 may be formed of a screw shaft for guiding the vertical movement of the frame base 14.

[0014]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4
1 illustrates a ground reinforcement base device (hereinafter, referred to as a “base device”) 10 according to an embodiment of the present invention.
The base device 10 comprises a vertically elongated guide body 12 erected on the excavated ground to be reinforced, and a ground reinforcement frame base 1.
4 is provided.

In this embodiment, the vertically long guide 12 is used.
Is formed of, for example, a straight body, and more specifically, of a screw shaft body having a screw thread and a screw groove adjacent to each other and spirally connected, for example, vertically. The screw shaft has, for example, a simple structure in which a thread groove 12a is formed on the outer periphery of a stainless steel round bar. In the embodiment, a round bar formed with the same diameter over the entire length is diced.

The configuration of the guide body 12 is not limited to this embodiment. For example, the guide body 12 may have a shaft in the longitudinal direction, and a guide protrusion may be formed spirally on the surface of the shaft. good. Further, the guide body 12 may be basically one that penetrates into a vertical through hole of a ground reinforcement frame base to be described later and guides the ground reinforcement frame base to descend and move. It may be a straight rod, pipe material, long plate, or the like. The material is not limited to metals and alloys, but may be, for example, a synthetic resin or the like which is in the soil and hardly corrodes.

The ground reinforcement frame base 14 is moved downward from the upper end side of the guide body 12 while being engaged with and guided by the guide body 12, and the ground reinforcement frame base 14 is directly moved to the ground surface. The side supports the load of the construction to be built. The ground reinforcement top 14 has an inverted conical shape, has a conical slope 14a and a cylindrical main body 14b integrally, and the upper surface of the cylindrical main body 14b is flat. For example, only the body portion of the top (top) is formed.
The slope portion 14a of the ground reinforcement top 14 is preferably formed so as to have a slope of about 45 degrees from a horizontal plane, for example, so that stress distribution to the ground can be suitably performed, but the angle is limited to this angle. is not.

A vertical through hole 16 penetrating in the vertical direction is formed in the center of the ground reinforcing frame base 14. The guide body 12 erected on the ground penetrates and engages with the vertical through hole 16.

The vertical through hole 16 may be, for example, a straight vertical hole when the guide body 12 is a simple straight rod, pipe, long plate or the like. In the present embodiment, the guide body 12 has a configuration of a screw shaft having a screw groove 12a on the peripheral surface, and accordingly, the vertical through hole 16 has a correspondingly slightly larger diameter than the diameter of the screw shaft. Screw holes. That is, the guide 1 made of a screw shaft
The screw hole has a thread portion and a groove portion having a size enough to form a certain gap between the screw thread and the screw groove. When the ground reinforcement top 14 is formed from a secondary concrete product, for example, a screw shaft having a nominal diameter slightly larger than the screw shaft is arranged in a top-like forming die, and the die is formed in this state. Concrete may be poured into the container, and before solidification, concrete may be pulled out while rotating the screw shaft around the axis to form a screw hole, and the screw shaft to be inserted may be inserted and rotated while engaging and rotating.

In the embodiment, the ground reinforcement top 14 is formed from a solidified material of molten polystyrene. That is, a styrene foam easily obtained in a food container, a simple transportation case, or the like is heated to, for example, about 200 ° C., melted and liquefied, and the guide body 12 formed of a screw shaft is vertically set up. It is put into a (reverse) conical mold, cooled and solidified, and then withdrawn while removing the mold while rotating the guide body 12 to obtain a solidified molten styrene foam.

This molten styrofoam solid has, for example, a specific gravity of 0.8 and a weight of about one third as compared with a concrete secondary product, is light in weight, and has a high compressive strength of 27 N / mm 2. And it has excellent corrosion resistance. Also, Styrofoam such as used can be used,
It also contributes to resource recycling. Top 14 for ground reinforcement
May be formed of another hard synthetic resin. Further, a material having high corrosion resistance using a material such as a metal, ceramic, or a concrete secondary product may be used.

Then, the screw shaft of the guide 12 is inserted into the screw hole, which is the vertical through hole (16) of the ground reinforcing frame base 14, while engaging and rotating, thereby guiding the ground reinforcing frame base 14. It is moved downward from the upper end of the body 12 to land on the ground surface to be reinforced. Further, the periphery is back-filled with crushed stones or the like, and the reinforcing ground is formed while the upper end side of the guide body is sequentially inserted into the vertical through holes of the other ground reinforcing tops. FIG.
A guide body 12 as a straight body is erected on the ground, and a ground reinforcement frame base 14 is formed along the guide body 12 from the upper end side.
Is settled on the ground surface to be reinforced, and crushed stones or the like are stuffed from the gap between the adjacent coma bases 14. In such a case, the guide 1
Numeral 2 is formed as a screw shaft having a screw thread and a screw groove adjacent to the peripheral surface of the rod body and continuously formed in a spiral shape, and the vertical through hole 16 of the ground reinforcement top 14 is formed in the screw shaft body. The screw shaft body is formed as a screw hole for receiving and engaging the screw shaft body with a certain gap, so that the screw shaft body can be smoothly engaged and rotated, so that the frame base 14 corresponds to the engagement between the screw shaft and the screw hole. It can be lowered while rotating. At the same time, the engagement between the screw shaft and the screw hole restricts the top frame 14 from being linearly pushed up and moved without rotating. As a result, another ground reinforcement frame base 14 is inserted from the upper end side of the guide body 12, lowered and landed, the periphery is backfilled, and these steps are sequentially repeated to easily form the reinforcement ground. That is, one guide body is inserted into the plurality of ground reinforcement tops 14 in a skewered manner, and the tops, which are units of each base layer, are integrally connected in the vertical direction.

In this embodiment, the upward movement restricting means 18 for restricting the upward movement of the ground reinforcement frame base 14 with the guide body 12 inserted therethrough is adjacent to the guide body and is continuous in the longitudinal direction. A screw shaft having a screw thread and a screw groove formed in an intended manner, and a screw hole structure of a frame base that moves up and down while engaging with the screw shaft. The upward movement restricting means is
Without being limited to the above-described embodiment, for example, a ratchet gear, a spring or other urging means that allows only the downward movement of the frame base 14 and restricts the upward movement, or any other method may be used.

Further, in this embodiment, FIG.
As shown in FIGS. 3 and 4, a spacer is provided between one ground reinforcement piece base 14 inserted into the guide body 12 and another ground reinforcement piece base 14 inserted thereafter and located above. The body 20 is arranged so as to be inserted through the guide body 12. In the embodiment, the spacer body 20 is formed of a hollow cylinder having upper and lower surfaces opened, and the length of the spacer body 20, that is, the space between the frame bases 14 is set to be equal to the height and opened in the height direction. Therefore, an interval H in the height direction between the frame base layers is defined. The spacer body 20 does not necessarily need to be installed, and only a continuous frame base may be inserted into the guide body 12 and stacked. Although not shown, a pin member or another stopper member may be attached so that the frame base 14 screwed to the screw shaft of the guide body 12 does not move in the vertical direction.

Next, the operation of the ground reinforcement base device 10 according to the embodiment will be described with reference to FIGS. 5 to 9, together with the construction method of the base device and the ground reinforcement structure using the same. I do.

First, the number of layers of the ground reinforcement frame base 14 corresponding to the allowable bearing capacity calculated based on the design contents in consideration of the load of the structure and the softness of the ground is determined, and the number of layers is adapted. A guide body 12 having a length to be prepared is prepared. Then, the vertically elongated guide body 12 is vertically inserted into the excavated ground E to be reinforced by using a heavy machine or the like at a pre-designed position on the entire ground surface of the ground E to be reinforced, and is erected vertically to a planned embedding depth ( (Fig. 5). Next, with respect to all of the guides 12, a screw shaft is inserted into the screw hole (16) of the top frame base 14 for reinforcing the ground, and the upper end of the guide 12 is engaged with and guided by the guide 12. Then, the ground reinforcement top base 14 is lowered while being rotated in a screwdriver shape to be landed on the ground surface. It is preferable that the pitch width and the diameter length of the screw shaft body are set uniformly, and in this case, the top 14 descends while rotating in a spiral while maintaining the horizontal position. Thus, the first frame base group 200 is laid and formed on the entire ground surface to be reinforced. Thereafter, for example, crushed stones 105, stuffing stones, earth, and the like are charged from a transparent portion between the adjacent inverted cone-shaped tops 14 (FIG. 6), and rolling is performed from the upper surface as far as possible. The one-frame base layer 300 is formed.

Next, a spacer tube (20) is inserted into each guide body 12 and placed on the upper surface of the first frame base 14, and the height direction with respect to the upper layer ground reinforcement frame base 14 is set. Ensure a separation gap. In this state, crushed stones as filling stones are further charged and compacted (FIG. 7). A second frame base group 202 is laid on the entire ground surface to be reinforced by moving the other ground reinforcement frame base 14 from the upper end side of the guide body 12 while engaging and guiding the other ground reinforcement frame bases 14 with the respective guide bodies 12. It is formed and filled with a filling stone from the gap between the tops of the tops 14 and is rolled as necessary (FIG. 8). by this,
The reinforced ground is formed, and the building 400 is constructed on this upper surface via a foundation (not shown) or the like. If necessary, these steps may be sequentially laminated on the upper layer to form a coma base layer for three layers, for example, as shown in FIG. 9, or for four, five, or more layers. May be formed. Normally, the supporting force is improved by forming the coma base layer into multiple layers.

In this manner, each frame base 14 in the vertical direction is
The installation position is determined by the guide 12, and the top 1 of the ground reinforcement 1 is simply obtained from the upper surface side of the guide by a heavy machine or the like.
4 is simply suspended and lowered along the guide hole.
0 can be continuously performed. Further, the work effort of the auxiliary worker is greatly reduced, and the work time is also significantly reduced.

In the embodiment, the guide body 12 is a straight body composed of a screw shaft body in which a thread groove and a screw thread are continuously formed in the longitudinal direction adjacent to the peripheral surface. In the center, a vertical through-hole (16) is provided at the center to enable movement while rotating along the guide groove, that is, the screw groove and screw thread of the screw shaft body. The top of the guide is lowered while moving the upper end of the guide body through the vertical through hole, and the backfill layer is sequentially formed on the upper layer side. Can be lowered with a brake applied to a certain extent when it is moved downward, and safety in operation can be ensured. Further, the height of the vertical position of the frame base 14 with respect to the guide body can be easily adjusted.
The work of setting the entire horizontal plane of 0 and 302 can be performed very easily. In particular, by forming the top of the top with a synthetic resin or a solidified body of melted polystyrene, etc., the top of the top of the top becomes lighter, and preparation and placement for setting on the guide are changed.
Efforts in moving, managing, etc. are greatly reduced.

Conventional secondary concrete concrete product 100
According to the settlement characteristics (equal load) data in the method using the method, for example, when an evenly distributed load of 2.5 t / sq.m. 5 mm which is less than half of the method (using a solidified molten styrene foam [27 N / mm2 strength], using a stainless steel screw shaft, and using a spacer tube as a gas pipe for piping). It is presumed that the amount of settlement is suppressed. That is, by increasing the layer of cones, the allowable bearing capacity of the ground is greatly improved.

The construction method of the ground reinforcement base, the ground reinforcement base device, and the ground reinforcement structure according to the present invention can be applied to various civil engineering construction works such as building foundations, various waterways, seawalls, roads, abutments, and piers. It can be applied to the ground reinforcement of foundations, septic tanks, water storage tanks, foundations of various tanks, foundations of various works such as steel towers and advertising towers, and reinforcement works of foundations for attaching secondary concrete products.

Although the construction method of the ground reinforcement base, the ground reinforcement base device and the ground reinforcement structure according to the present invention have been described above, the present invention is not limited to the above embodiments. Modifications that do not depart from the essence of the invention described in the claims are included in the present invention.

[0033]

As described above, according to the method for constructing a ground reinforcement base of the present invention, a plurality of vertically long guides are erected on the ground to be reinforced to be excavated, and a top reinforcement for the ground is formed. Lowering the base from the upper end side of the guide body while engaging and guiding the base to each guide body, laying and forming top base groups on the entire ground surface to be reinforced, and filling it between top bases for reinforcement in each place A stone is filled to form a first frame base layer, and the other ground reinforcing frame base is moved down from the upper end side of the guide body while being engaged with and guided by each guide body. Laying and forming other frame base groups, filling the space between the frame bases for reinforcement in each area with filling stones to form a second frame base layer, and repeating these steps as necessary for the upper layer Since the ground reinforcement base is constructed while being laminated, the vertical direction of the ground reinforcement Positioning can be performed easily and in a short time with high accuracy and without labor, and workability can be greatly improved. It is.

Further, the guide body is a screw shaft body, and a vertical penetrating member is provided at the center of the ground reinforcement frame base so as to be vertically movable while engaging and rotating along the screw thread and the screw groove of the screw shaft body. A hole is provided, the top of the guide body is inserted into the vertical through hole of the ground reinforcement top, and the top of the guide is rotated while rotating the top of the top, so that the backfill layer is sequentially formed on the upper layer side. By doing so, the labor of the work assistant is reduced when the ground reinforcement top base is moved down along the guide body, and the height setting and adjustment of the engagement height of the top base with respect to the guide body are simple. In addition, it is possible to easily perform a horizontal plane setting operation of the entire top of the top base, and to prevent the lifting due to the stress from the ground applied to the slope side of the top base by engagement of the screw shaft and the screw hole.

Further, according to the ground reinforcement base device of the present invention, the vertically elongated guide body erected on the ground to be reinforced to be excavated, and the guide body descends from the upper end side of the guide body while being engaged and guided by the guide body. A moving ground support frame base, and a vertical through hole through which a guide body penetrates in the vertical direction is formed in the center of the ground reinforcement frame base, and the ground reinforcement frame base is moved to the upper end side of the guide body. From the bottom to the ground surface to be reinforced, and backfill the periphery, and sequentially form the reinforcing ground while inserting the upper end side of the guide into the vertical through hole of the other ground reinforcement top. Since there is a guide body, each frame base penetrates in a skewered manner, so that the vertical installation positioning of the ground reinforcement frame base can be performed easily and in a short time with high precision and without labor. Of low-cost, multi-layer ground reinforcement tops while greatly improving To realize the set construction, it is possible to form an excellent reinforcement Ground practical.

Further, in the ground reinforcement base device, there is provided upward movement restricting means for restricting upward movement of the ground reinforcement frame base with the guide body being inserted into the vertical through hole of the ground reinforcement frame base. With this configuration, it is possible to prevent the top of the coma base from rising or moving upward due to stress from the ground side, and to build a stable reinforced ground.

In the ground reinforcement base device, the vertical through hole of the ground reinforcement frame base is a screw hole, and the guide penetrates the screw hole to move the ground reinforcement frame base in the vertical direction. By using a screw shaft body for guiding, the labor of the work assistant is reduced when the ground reinforcement top base is moved down along the guide body, and the engagement of the top base with respect to the guide body is reduced. It is easy to set and adjust the total height position, and it is also easy to work out the horizontal surface of the entire frame base, and to remove the lifting due to the stress from the ground side on the slope side of the top It can be prevented by engagement with the hole.

Further, in the ground reinforcement base device, the ground reinforcement frame base is made of a hard synthetic resin, so that the material cost of the device can be maintained at a low cost, the corrosion resistance is excellent, and the ground reinforcement frame base is excellent. The stand is lightweight, laying work and transportation,
Work labor for storage, management, etc. can be reduced.

Further, since the base for reinforcing the ground is made of a solid body of molten foamed polystyrene, the material cost of the apparatus can be maintained at a low level, and the base is lightweight and laying work, transportation, storage, management, etc. In addition to reducing the labor required in the process, it contributes to resource recycling.

According to the ground reinforcing structure of the present invention,
A plurality of vertically elongated guides should be erected on the excavated ground to be reinforced, and the tops of the tops for ground reinforcement should be moved downward from the upper end of the guides while engaging and guiding each guide. A group of top frames is laid and formed on the entire ground surface. Filling stones are filled between the top frames for reinforcement in each area to form the first top layer, and another top frame for ground reinforcement is formed. Lowering and moving from the upper end side of the guide body while engaging and guiding each guide body, laying and forming other frame base groups on the entire ground surface to be reinforced, and filling stones between frame bases for reinforcement at each place To form a second frame base layer, and these steps are sequentially laminated for the upper layer as necessary, so that the vertical installation positioning of the ground reinforcement frame base can be performed with high accuracy and It can be performed easily and in a short time without any labor, and greatly improves workability. It is possible to form a reinforcing ground over the multilayer under stringent.

In the ground reinforcement structure, the vertical through hole of the ground reinforcement frame base is a screw hole, and the guide body penetrates into the screw hole of the ground reinforcement frame base to form the ground reinforcement frame base. By using a screw shaft body for guiding the vertical movement, the work assistant's labor is reduced when the ground reinforcement frame base is moved down along the guide body, and the frame base for the guide body is reduced. It is easy to set and adjust the engagement height position of the base, and it is also easy to perform the horizontal surface setting work of the entire top of the top, and to prevent the lifting due to the stress from the ground side on the slope side of the top It can be prevented by the engagement between the body and the screw hole.

[Brief description of the drawings]

FIG. 1 is a front view of a ground reinforcement frame base according to an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is an exploded view of the same.

FIG. 4 is an explanatory longitudinal sectional view thereof.

FIG. 5 is an explanatory diagram illustrating the construction method.

FIG. 6 is an explanatory diagram illustrating the construction method.

FIG. 7 is an explanatory diagram illustrating the construction method.

FIG. 8 is an explanatory diagram for explaining the construction method.

FIG. 9 is an explanatory view showing a construction state in which three layers of a ground support top are formed in three layers.

FIG. 10 is a schematic perspective explanatory view showing a state of construction on the ground using a conventional piece-like concrete secondary product.

FIG. 11 is an explanatory longitudinal sectional view thereof.

FIG. 12 is an explanatory longitudinal sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ground reinforcement base device 12 Guide body 12a Screw groove 14 Ground reinforcement frame base 16 Vertical through hole 18 Upward movement restricting means 20 Spacer body 200 First frame base group 202 Second frame base group 300 First frame Base layer 302 Second frame Base layer 400 Construction E Ground to be reinforced H Height direction spacing

Claims (9)

[Claims] 1. A plurality of vertically elongated guides are erected on the ground to be reinforced to be excavated, and are moved downward from the upper end side of the guides while engaging and guiding a piece-like ground reinforcement frame base to each guide. Laying the foundations on the entire ground surface to be reinforced, forming the first laminar base layer by filling the gap between the laminations for the laminations at each location, and forming the first lamina. While lowering the frame base for engagement with each guide body and moving it down from the upper end side of the guide body, laying and forming other frame base groups on the entire ground surface to be reinforced, A method for constructing a ground reinforcement base, in which a filling stone is filled in between to form a second frame base layer, and if necessary, these steps are sequentially stacked for an upper layer to construct a ground reinforcement base. 2. The guide body is a screw shaft body, and a vertical penetrating center of the ground reinforcement frame base is made to be vertically movable while engaging and rotating along the screw thread and the screw groove of the screw shaft body. A hole is provided, wherein the top of the guide body is inserted into the vertical through hole of the ground reinforcement frame base, and the top of the guide body is rotated while rotating, and the frame base is moved downward, and a backfill layer is sequentially formed on the upper layer side. 1. A method for constructing a ground reinforcement base according to item 1. 3. A vertically elongated guide body erected on an excavated ground to be reinforced, and a ground reinforcement frame base descending from an upper end side of the guide body while being engaged and guided by the guide body, A vertical through hole is formed in the center of the ground reinforcement frame base, through which the guide body penetrates in the vertical direction.The ground reinforcement frame base is moved down from the upper end of the guide body to land on the ground surface to be reinforced. A ground reinforcement base device in which the periphery is backfilled and the reinforcement ground is formed while sequentially inserting the upper end side of the guide body into the vertical through hole of another ground reinforcement frame base. 4. An upper movement restricting means for restricting an upward movement of the ground reinforcement piece base in a state where a guide body is inserted into a vertical through hole of the ground reinforcement piece base. Base device for ground reinforcement. 5. The vertical through hole of the ground reinforcement frame base is a screw hole, and the guide body is formed of a screw shaft that penetrates the screw hole and guides the vertical reinforcement of the ground reinforcement frame base. The ground reinforcement base device according to claim 3 or 4. 6. The ground reinforcement base device according to claim 3, wherein the ground reinforcement frame base is made of a hard synthetic resin. 7. The ground reinforcement base device according to claim 1, wherein the ground reinforcement frame base is made of a solidified material of molten foamed polystyrene. 8. A plurality of vertically elongated guides are erected on the excavated ground to be reinforced, and the tops of the tops for reinforcing the ground are engaged with and guided by the respective guides to move downward from the upper end side of the guides. Laying the foundations on the entire ground surface to be reinforced, forming the first laminar base layer by filling the gap between the laminations for the laminations at each location, and forming the first lamina. While lowering the frame base for engagement with each guide body and moving it down from the upper end side of the guide body, laying and forming other frame base groups on the entire ground surface to be reinforced, A ground reinforcement structure formed by filling a gap between stones to form a second frame base layer and sequentially stacking these steps on the upper layer as necessary. 9. The vertical through hole of the ground reinforcement top is a screw hole, and the guide penetrates into the screw hole of the ground reinforcement top to guide the ground reinforcement top base in the vertical direction. 9. The ground reinforcement structure according to claim 8, comprising a screw shaft.