JP3345403B2 - Ground stabilization unit and ground stabilization method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground stabilizing unit and a ground stabilizing method, and more particularly, to a ground surface constructed by civil engineering work, such as a slope of a lands, which is protected from runoff and collapse. And a ground stabilization method using such a unit.

[0002]

2. Description of the Related Art In civil engineering works for roads, rivers, parks, and the like, slopes such as road shoulders and embankments are firmly stabilized to protect the ground from runoff and collapse due to wind and rain erosion. It is necessary to stabilize and protect the foundation ground even in residential land. As a means for stabilizing or protecting the ground on such a slope, a method of attaching a concrete block to the ground or laying wood such as a round bar material has been used. Driving piles, setting nets, and spraying mortar on the ground have also been performed.

The method of stabilizing the ground surface using wood, which is a natural material, does not impair the natural scenery and is excellent in appearance. Since the rainwater is sucked into the ground and the vegetation grows well, a strong ground surface close to the natural ground can be constructed, and the strong ground surface can be maintained for a long period of time.

[0004]

In the method of stabilizing the ground surface using wood, there is a problem that the work of laying round bars or the like on the ground surface and fixing the same is troublesome. A large number of skilled workers are required to accurately lay a round bar or the like over the entire construction surface. If the distance between the bars is displaced or uneven, the appearance is conspicuous, so that accurate surveying and positioning are required, and the construction cost increases.
Connecting all the bars one by one is a very laborious operation. If there is a part where connection is insufficient, the load is concentrated on that part, and it is easy to cause damage or collapse of the ground.

An object of the present invention is to provide a technique for stabilizing the ground surface using wood as described above, which simplifies construction, improves the function of stabilizing the ground, and improves the finished appearance. It is.

[0006]

According to the present invention, ground stability is provided.
Units are laid side by side over the ground surface,
A planar unit that stabilizesMultiple wood
The bar isFour or more even rows are connected togetherFlat
Of the unit, as the wooden bar,One row
Between the long bar material arranged every other and the long bar materialColumn of
so,At least one rowMore than less than all columnsPlaced in the long
Shorter than shaku barAnd both ends are longer than both ends of the long bar.
Placed on the sideBetween the medium bar and the long barColumn ofso,
The medium bar is not placedAt least one rowIn the column
Arranged and shorter than medium length barAnd both ends are made of medium length bar
Located inside of both endsA short bar and the short bar
Same column asAt one end, from both ends of the short bar
Also on the outside, at the same position as the two ends of the medium bar or on the inside.
In the row on both sides of the short bar
The other end side is connected to the bar in the extension direction of the short bar.
Unit surface andFrom parallel directionsUnit surface andIntersectionThen uni
Projecting from the socket surfaceCan be turned to the directionWhatEquipped with turning bars
I can.

[Bar] The material of the wooden bar is not particularly limited as long as it has sufficient strength and durability to stabilize the ground surface. In addition to conifers, hardwoods, and other natural woods, artificial or synthetic woods made by joining or accumulating pieces of wood can also be used.
Wood impregnated with a synthetic resin or the like can also be used. The cross-sectional shape of the bar may be circular, elliptical, oval, semi-circular, triangular, quadrangular, trapezoidal, or other polygonal. What has unevenness in a part of sectional shape may be sufficient.

When natural wood is used as it is, a finished appearance close to nature can be obtained. The use of thinned wood is economical and helps to conserve resources. The bars may be cut or cut as they are, or may be subjected to preservative treatment or insect repellent treatment.
The surface can be polished and painted. The outer diameter of the bar is set in consideration of required strength and durability, dimensions of the entire unit and the number of constituent rows, ease of handling, and the like. Usually, the outer diameter D0 can be set in the range of 5 to 20 cm. In the case of a rod whose outer shape is processed, the outer diameter becomes almost the same over the entire length, but in the case of a natural wood, the outer diameter may vary within a certain range depending on the location in the length direction. In the case of a rod having a change in outer diameter, it can be defined by an average outer diameter.
However, a unit having a substantially constant outer diameter over the entire length of the bar is easier to manufacture and construct the unit. When the cross section of the bar is circular, the outer diameter D0 can be defined by the diameter. If the cross-sectional shape is other than circular, the outer diameter D0 can be defined by the passing diameter. In the case where the outer diameters differ in the radial direction of the bars, the outer diameter D0 is represented by the outer diameter of the bars in the direction in which the bars are arranged when the units are assembled.

The end face of the bar can be chamfered or rounded. [Unit] This is a collection of bars that are suitable for carrying and storing or constructing them in a lump. A plurality of rods are arranged in a plurality of rows and integrally connected, and have a planar shape as a whole. The planar units are laid side by side so as to cover the ground surface to be constructed, and the bars constituting the units are pressed against the ground surface to stabilize the ground surface. One unit is configured by arranging bars in four or more even rows. Although it depends on the construction conditions and the size of the bar,
Usually, it is set to about 4, 6, or 8 columns. For each column,
One row may be constituted by one bar, or may be constituted by a plurality of bars.

The rods of each row constituting the unit can be integrally connected by using various connecting means for wood and civil engineering materials. For example, connection by bolts and nuts can be adopted. Nail, calyx, wire, dowel, band, adhesive, and other connecting means can also be employed. A connecting structure in which a connecting tool made of an artificial material such as a metal is not exposed on a construction surface is preferable. It is preferable that the connecting structure is embedded inside the unit. After the unit has been manufactured, a finishing process can be performed to cover or obscure the connector. The type and arrangement of the bars to be used are determined for each row constituting the unit.

<Long Bar> First, a long bar is arranged every other row. Every other row means, for example, the first, third, and fifth rows from one end of the unit. Since the unit is an even-numbered row, if one end row of the unit is a long bar, the long bar is not arranged in the other end row. The length of the long bar determines the overall length of the unit. However, when the deflecting bar incorporated in the unit is extended outward, the diverting bar may protrude more outward than the long bar. The length of the long bar can be set in consideration of the ease of transportation, storage, handling, or construction of the unit. Normally, the length L1 of the long bar can be set in the range of 30 to 200 cm.

<Medium bar> The long bar is arranged in the middle row of the row in which the long bars are arranged. If there are a plurality of intermediate rows, they may be arranged in at least one of the rows and in two or more rows. The medium bar is shorter than the long bar. If the long bar and the medium bar are connected in a state where the length centers of the long bar and the medium bar are aligned, they can be arranged symmetrically in the axial direction. In this case, both ends of the medium-length bar are recessed inward by the same distance from both ends of the long bar.

When the units are connected to each other, the leading end of the long bar of the mating unit is inserted into the gap formed between the long bar and the end face of the medium bar in the middle of the row where the long bars are arranged. It fits and meshes. Therefore, the greater the difference between the lengths of the long bar and the medium bar, the longer the engagement length at the time of connection. The difference between the length L1 of the long bar and the length L2 of the medium bar can be set in the following range based on the outer diameter D0 of the bar. 2.2 ≦ (L1−L2) / D0 (1) Within the above range, the connection work between the units is easy,
In addition, a strong connection is possible.

More specifically, the aforementioned L1-L2 = 10
It can be set to a range of 180 cm. <Short bar> It is arranged in the middle row of the row where the long bar is arranged, and in the row where the medium bar is not arranged. At least one row is arranged in the unit. The short bar is shorter than the medium bar. If the long bar member and the middle bar member are arranged in the center, the end portion of the short bar member is disposed inside the both ends of the long bar member by the same distance.

Since the diverting bars are also arranged in the same row as the short bars, the outer periphery of the deflecting bar is located at both ends of the medium bar in a state where the short bars and the diverting bars are arranged. If they are arranged at substantially the same position or inside, when the units are connected to each other, the distal end of the long bar on the other side does not abut on the turning bar. In addition, when the position of the diverting bar is determined, if a certain gap or allowance is provided between the diverting bar and the short bar, the diverting operation of the diverting bar becomes easier. The turning range can be increased. The difference between the length L2 of the medium bar and the length L3 of the short bar can be set in the following range based on the outer diameter D0 of the bar.

2.2 ≦ (L 2 −L 3) / D 0 ≦ 2.5 (2) Within this range, when the above-described units are connected,
It does not hit the long bar of the other party, and there is no large gap on the surface of the unit. More specifically, L2-L3 can be set to 10 to 50 cm. <Diverted bar> It is arranged outside the both ends of the short bar in the same row as the short bar. The long bar, the medium bar, and the short bar are connected so that they do not move or change their posture, but the diverted bar is the bar in the adjacent row, that is, the long bar. One end is connected at one end, and the turning bar can be turned from a direction parallel to the surface of the adjacent long bar or the unit to a direction intersecting with the surface of the adjacent long bar or unit.

The deflectable range of the diverting bar is a range that does not come into contact with the short bar arranged in the same row. Therefore, the deflection range of the diverting bar is determined by the relationship between the end of the short bar and the mounting position of the diverting bar. It is preferable that the deflection range includes at least a range from a direction parallel to the surface of the unit to a direction perpendicular to both sides of the unit. The length of the diverting bar is set so as to be embedded in the ground at a sufficient depth at the time of construction so that the unit can be fixed and the ground can be sufficiently stabilized. However, it is preferable that the length is such that the transportation and storage of the unit and the handling during construction are not hindered. Specifically, the length L4 of the diverting bar can be set to 10 to 200 cm. Based on the outer diameter D0 of the bar, it can be set in the range of 2.7 ≦ L4 / D0 (3).

It is preferable that a gap of about 0.10 to 0.25 times the outer diameter D0 of the bar is provided between the diverting bar and the short bar disposed inside the diverting bar. If chamfering or rounding is applied to the end of the diverting bar, it is difficult to hit the short bar during the diverting operation of the diverting bar, and the operation becomes easy. [Construction of Unit] A construction method for stabilizing the ground surface using the ground stabilization unit will be described. <Construction surface> The ground surface on which the ground stabilization unit is constructed can be applied to a cut surface, a ground surface, and an embankment surface of the ground in a normal civil engineering structure. Specific examples include river embankments, road and railway shoulders, and residential land. Applicable to so-called slopes. The slope generally means an inclined surface, but may be applied to a vertical surface, a step surface, or a step surface.

<Handling of Unit> The unit having the above structure can be manufactured at a construction site.
It can be mass-produced efficiently in a factory other than the construction site. The manufactured unit is transported to a construction site by a transportation means such as a truck and used. During transportation or storage, if the diverting bars included in the unit are arranged in parallel with other bars, the entire unit can be handled as a flat sheet. If the diverting bar is arranged so as to be folded over the short bar on the center side, the entire length of the unit can be shortened and handled. If a plurality of units are stacked so that the diverting bars folded on the center side do not hit each other, the space for transportation and storage can be reduced.

<Construction work> At the construction site, a plurality of units are arranged side by side in front, rear, left and right so as to cover the ground surface.
At this time, in a pair of units adjacent to each other in the axial direction of each bar, the bars are arranged so that the order in which the bars are arranged is reversed. Specifically, for example, one of the units is composed of: (1) a long bar (2) a short bar + a turning bar (3) a long bar (4) a medium bar (5) a long bar When the material (6) is aligned with the medium bar, the other unit is (6) medium bar (5) long bar (4) medium bar (3) long bar (2) Short bars + turning bars (1) Long bars should be arranged in this order.

In practice, one unit may be turned 180 ° so that the other unit is upside down. Then, the deflecting rods of each unit are positioned in such a manner that the tip of the deflecting bar is diverted in a direction protruding from the back surface of the unit and is embedded or supported on the ground surface, thereby positioning the unit with respect to the ground surface. In addition, movement and displacement during and after construction can be prevented. Also,
Deflected bars embedded in the ground after construction also have the function of preventing displacement and collapse inside the ground. Further, between adjacent units, the ends of the long bars of the two units that are different from each other are engaged with each other, and the engaged ends of the long bars are connected and fixed.

More specifically, the tip of the long bar of one unit enters the row of the medium bar or the row of the short bar and the deflection bar in the other unit. The long bar can be inserted to a position where the front end of the long bar comes into contact with the front end of the other medium bar. A slight margin may be provided between the tip of the long bar and the tip of the medium bar on the other side. If there is enough space between the long bar and the external shape of the turning bar on the other side to allow the turning bar to turn, the posture of the turning bar can be changed as necessary. Becomes easier. If the ends of the long rods of adjacent units are connected to each other by the same means as the connection of the rods in each unit, the units are connected and fixed.

The above-described connection operation between the units is sequentially performed on the entire construction surface. In the direction perpendicular to the length direction of the bar, the side edges of both units may be abutted to each other, and the bars in the outer rows adjacent to each other may be connected by the same means as described above. It is also possible to connect the outer row of bars in a state where they are stacked one on top of the other. In this case, a step is formed between the surfaces of the unit. It is also possible to connect the bars of the outer row with spacers made of wood or the like interposed therebetween. By adjusting the dimensions of the spacer, the size of the step between the units can be changed. In a pair of units arranged adjacent to each other, the ends of the diverting bars that are diverted in a direction protruding from the back surface of each unit can be connected and fixed. In this case, it is desirable that the deflection bars of both units are arranged in an adjacent row or an adjacent row. If the diverting bars to be connected are in separate rows, they can be connected via a spacer made of a bar or the like.

For example, a pair of units adjacent to each other in the axial direction of the bar are used to convert the diverting bars arranged in rows adjacent to each other.
If each unit is directed obliquely outward, the deflection bars cross each other at the tip, and can be directly connected. Thereby, the units can be firmly connected to each other. Intersecting deflection bars strongly support the unit against the ground, effectively preventing ground movement and collapse. The adjacent units connecting the diverting bars may be adjacent units in the axial direction of the bars, or may be units adjacent in the direction in which the bars are arranged.

After the unit is placed so as to cover the ground surface, if the gap is eliminated by filling the ground between the back surface of the unit and the ground surface, the unit will adhere to the ground and exhibit a good stabilizing action. Can be. A hardened material such as cement can be poured instead of or together with the earth and sand. By stuffing the earth and the like, the diverting bar projecting from the back of the unit is completely embedded in the earth and the ground. As a result, the unit is firmly fixed to the ground, and the ground surface is stabilized or protected by the unit disposed on the front side.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [Structure of Ground Stabilizing Unit] The ground stabilizing unit 10 shown in FIGS. 1 and 2 is manufactured using a thinned material of a round bar shape. The unit 10 is composed of six rows of bars. In FIG. 1, a first column, a third column,
The long bar 12 is arranged in the fifth row. In the second row, a short bar 14 is arranged at the center, and diverting bars 16 are arranged on both outer sides of the short bar 14 at intervals. In the fourth and sixth rows, medium-length bars 18 are arranged. Both ends of the medium bar 18 are arranged at the same position as the outer peripheral end of the turning bar 16.

As shown in FIG. 2, the rods 12 in each row are:
They are connected by connecting bolts 20 that penetrate in the diameter direction.
As shown in FIG. 1, one connecting bolt 20 passes through the center position of the unit 10, and the long bar 12, the short bar 14,
The long bar 12, the medium bar 18, the long bar 12, and the medium bar 18 are sequentially penetrated and connected. The connecting bolts 20 arranged at an interval on the left and right sides are a long bar 12, a turning bar 14, a long bar 12, a medium bar 18, and a long bar 1.
2. The middle bar 18 is sequentially penetrated and connected. In FIG. 1, the connecting bolt 20 penetrating near the end of the long bar 12 is
Used for connection with the adjacent unit 10. Therefore, in a state before the unit 10 is installed, the connecting bolt 20 is not attached to this portion, and only the hole for inserting the bolt may be penetrated. The bolt heads and nuts of the connecting bolts 20 attached to the unit 10 are embedded in the rods 12 so that they do not protrude outside the unit 10, particularly, at a portion exposed to the outside after construction.

The diverting bars 16 are connected to the long bars 12, 12 adjacent on both sides near their ends by connecting bolts 20.
It is supported by. The diverting bar 16 is attached to be rotatable about a connection bolt 20 that is pivotally supported in a plane parallel to the other bars 12. In FIG. 2, the diverting bar 16 can pivot from a posture orthogonal to the surface of the unit 10 to a posture orthogonal to the opposite side of the unit 10 through a posture coincident with the surface of the unit 10. . <Example of unit dimensions> Outer diameter D0 of the bar = 10cm Length L1 of the long bar 12 = 113cm Length L2 of the medium bar 18 = 87cm Length L3 of the short bar 14 = 61cm Deflected bar 16 length L4 = 100.5 cm The ground stabilization unit 10 having the above structure
It is mass-produced in a factory in advance, and if necessary, transported to a construction site using a transportation means such as a truck and used for construction.

When transporting and storing the unit 10, FIG.
As shown in FIG. 2, if the deflecting bar 16 is oriented in a direction perpendicular to the surface of the unit 10, the bulk is increased, which may make it difficult to handle. Therefore, as shown in FIG. 4, if the diverting bars 16 are oriented in a direction parallel to the other bars 12..., The bulk of the entire unit 10 is reduced and the unit 10 is easy to handle. [Construction of Ground Stabilization Unit] As shown in FIG.

A slight space is left between the surface of the ground E and the unit 10. The deflection bar 16 is oriented in a direction orthogonal to the rear surface of the unit 10, and its tip is embedded in the ground E or fixed to a pile embedded in the ground E. The deflection bar 16 is used as a so-called stay member. As a result, the unit 10 can be firmly fixed to the inclined ground E while being securely positioned. Deflected bars 16 arranged in a direction intersecting the slope
Performs well the function of preventing the ground E from collapsing or moving after construction. As shown in FIG. 1, a large number of units 10 are sequentially connected in the axial direction of the bars 12. At this time, with respect to the central unit 10 indicated by the solid line, the left and right units 10 and 10 indicated by the two-dot chain line arranged next to the central unit 10 are aligned with the central unit 10 in the posture or the rods 12. Is different. Specifically, the left and right units 10 and 10 are
It has been turned upside down by 180 °,
The bar members 12 are arranged in the reverse order.

As a result, in the central unit 10 and the left and right units 10, the long bars 12 are arranged in rows adjacent to each other. The end of the long bar 12 of one unit 10 is connected to the long bar 1 of the other unit 10.
2 can be fitted into the recess formed. The long bar members 12 are engaged with each other like a gear.
By the engagement of the long rods 12, the adjacent units 10 are positioned in a state where the movement of the rods 12 in the direction orthogonal to the axial direction is prevented. There is a certain gap between the tip of the long bar 12 and the tip of the middle bar 18 or the outer periphery of the turning bar 16 on the other side. This gap provides room for absorbing dimensional errors and misalignment of the unit 10 and also facilitates rainwater to be sucked into the ground E, makes the ground E come into contact with the outside air,
An effect of facilitating the growth of plants from the ground E can also be expected. In addition, it also provides a margin space in which the diverting bar 16 can be tilted left and right.

The adjacent units 10 are fixed to each other by connecting and fixing the ends of the long bar members 12 meshed with each other with the connecting bolts 20 between the adjacent units 10. In this state, adjacent units 10
It can be turned around the connecting bolts 20 which are connected and fixed to each other. That is, an angle can be formed between the surface of one unit 10 and the surface of the other unit 10. This makes it possible to lay the unit 10 in a connected state even on a slope that is curved or bent in the horizontal direction.

At both ends of the construction surface, dents are left every other row on the side edges of the unit 10 at the end.
This portion may be left as it is, or another bar corresponding to the difference in length between the long bar 12 and the medium bar 18 may be embedded to close the gap. Long bar 1
2 may be cut off and aligned with the end of the medium bar 18. As shown in FIG. 3, the unit 10 includes bar members 12.
Are also laid side by side in the direction perpendicular to the axis. In this case, the outermost row of the bar 1
2... May be connected and fixed by the connecting bolt 20 or the like.

After the unit 10 is installed on the slope of the ground E, the gap remaining between the back surface of the unit 10 and the ground E is filled with earth and sand. The diverting bars 16 protruding from the back of the unit 10 are embedded in earth and sand. As a result, unit 10
And the ground E are completely integrated, and the stabilization of the ground E by the unit 10 can be reliably exhibited. [Modification Example of Unit Arrangement Form] FIG.
Has changed slightly. Specifically, turning bar 1
6 extend parallel to the surface of the unit 10, that is, the other bars 12. The tip of the diverting bar 16 projects outward beyond the tip of the long bar 12.

By connecting another bar member 32 to the diverting bar member 16 protruding outside the unit 10 by using a connecting bolt 20 or the like, the ends of a large number of units 10 covering the slopes are supported. It can be fixed or connected to a unit having another structure or a ground stabilizing member. [Modification Example of Unit Structure] The ground stabilizing unit 10 shown in FIG. 5 is different from the above embodiment in the arrangement of the bars 12. Specifically, the long bar 12, the medium bar 18, the long bar 12, the short bar 14 and the changed bar 16, the long bar 1
2. It is composed of six rows of medium-length bars 18.

The units 10 having different arrangement patterns of the bars 12 can be used in the same manner as described above. If the unit 10 with the same arrangement pattern is turned 180 ° and turned upside down and arranged next to it,
And the gap between them will be engaged alternately,
If the units 10 are connected and fixed by the connecting bolts 20, the units 10 can be sequentially connected to each other. [Connection of diverting bars] In the construction structure shown in FIGS. 6 and 7, diverting bars 14 of adjacent units 10 are connected to each other on the back surface side of the unit 10.

The arrangement pattern of the rods 12 in the unit 10 adopts the arrangement pattern shown in FIG. In FIG. 5, in a state where the units 10 are adjacent to each other,
The diverting bars 14 are arranged in the fourth column of the unit 10 indicated by the solid line and in the third column of the unit 10 indicated by the two-dot chain line. Thus, the diverting bars 14 arranged in the adjacent row are connected to each other. As shown in FIGS. 6 and 7, the deflection bar 14 of each adjacent unit 10 is turned obliquely outside the respective unit 10. The deflection bars 14 of the left and right units 10 overlap at the tips. Turning bar 1
The four overlapping portions are connected and fixed by the connecting bolt 20.
At this time, a short connecting bar 32 is arranged outside the diverting bar 14, and two connecting bars 32 and two diverting bars 1 are arranged.
4 are connected together.

As shown in FIG. 7, the two deflecting rods 14 form a triangular truss-like structure with respect to the surface of the unit 10, thereby providing a strong structure. If such a structure is embedded in the ground E or supported by the ground E, the unit 10 is securely fixed to the ground E,
The ground E can be strongly stabilized. Short connecting bar 32
The function of preventing the unit 10 from slipping out of the ground E and the function of preventing movement and deformation of the ground E is also enhanced. Unit 1
The horizontal member and the vertical member that constitute 0 are integrated, realizing the surface integration of the ground surface (also referred to as ground surface sewing effect), and dramatically improving the ground stabilization of the slope. Comes.

The connection of the turning bars 14 and the attachment of the connecting bars 32 as described above can be performed before the unit 10 is arranged on the front surface of the ground E. Attachment of the unit 10 to the front of the ground E and turning bar 1
4 and the connecting rod 32 can also be assembled. As in the above embodiment, if the diverting bars 14 of the adjacent units 10 are arranged in the adjacent row, the diverting bars 1
4 can be directly connected by closely contacting each other. However, even if the diverting bars 14 are arranged in rows apart from each other,
The connection can be achieved by using a long connecting bolt 20 or by inserting a bar serving as a spacer in a gap between the diverting bars 14.

[Overlapping of Units] In the construction state shown in FIG. 8, the ground stabilizing units 10 are partially laid and laid. As the structure of the unit 10, the above-described arrangement pattern of FIG. 5 is adopted. 6 and 7, the unit 10 is assembled so as to form a truss structure with the diverting bars 14 using the connecting bars 32, similarly to FIGS. In the cross-sectional structure in the transverse direction of the unit 10 shown in FIG. 8, when the units 10 are sequentially arranged along the inclined surface of the ground E, that is, the slope, instead of arranging the upper and lower units 10 on the same surface, It is arranged so that a part overlaps on the front and back.

More specifically, the unit 10 disposed on the lower side of the slope faces the long bar 12 in the upper row, and the unit 10 disposed on the upper side faces the middle bar 18 in the lower row. They are arranged to overlap. There is a step between the lower unit 10 and the upper unit 10 in the front and back directions. In actual construction, the lower unit 10 is constructed,
After earth and sand are buried between the unit 10 and the ground E, the upper unit 10 is arranged to be inserted into the back side of the lower unit 10. At the lowermost part of the inclined surface, a support member 34 made of a relatively thick and strong bar or frame material is laid, and the weight and pressure of the ground E existing above and the unit 10 The load applied from the weight etc. can be reliably supported.

In the above embodiment, since the weight of the unit 10 disposed above the slope is not directly applied to the lower unit 10, it is possible to prevent an excessive load from being applied to the lower unit 10. it can. Since the slope of the ground E is divided with a step for each unit 10, the entire slope is unlikely to collapse or deform. Since the bars 12 and 18 are doubly arranged at the connecting portion of the upper and lower units 10, the connection can be strengthened. Even if the units 10 are slightly different from each other, it is difficult to form a gap that is conspicuous in appearance. [Construction on Stair Surface] In the construction structure shown in FIG. 9, the ground stabilization unit 10 is constructed on a step-like step surface of the ground E.

The structure of the unit 10 is such that the bars 12 are arranged in the arrangement pattern shown in FIG.
The connection of the units 10 in the axial direction is described in FIG.
As shown in FIG. 7, the diverting bars 14 are assembled in a truss shape and connected by a connecting bar 32. In the cross-sectional structure in the transverse direction of the unit 10 shown in FIG.
Is a stepped step surface. The unit 10 is installed on the vertical surface of each step-like portion. Since the deflection bars 14 of the unit 10 are embedded in the ground E, the unit 10 does not peel off from the vertical plane. There is an interval in the horizontal direction between the units 10 arranged only on the vertical surface of the stair surface. Individual units 10
Is supported by the ground E at the horizontal portion of the stairs, so that it is prevented from slipping down together with the support by the diverting bars 14. At the lowermost part of the ground E, a thick support member 38 is installed to receive a load from above.

The horizontal part of the stairs is exposed. Since the horizontal exposed surface of the ground E is hard to collapse, the horizontal portion of the stairs may be left exposed. Plants can be planted on horizontal sections, and gravel can be laid. A horizontal bar 36 prepared separately from the unit 10 is provided on the horizontal portion of the stairs.
Can be covered side by side. The connecting bolts 20 described above can be used for connecting the horizontal bars 36 to each other. The horizontal bar 36 and the unit 10 can also be connected by the connecting bolt 20 or the like. Since the long bar 12 of the upper end row of the unit 10 arranged below the stair surface protrudes above the horizontal surface of the stairs, the tip of the horizontal bar 36 laid on the horizontal surface is connected to the long bar. The member 12 can be brought into contact with the back surface and connected.

The above construction structure can be applied to ground stabilization on an inclined surface. In this case, the surface is divided into a plurality of steps by cutting the surface of the inclined surface or performing embankment. The unit 10 can be installed on the step surface formed from the inclined surface in the same manner as described above. Also, by burying earth and sand between the unit 10 and the inclined surface while stacking the units 10 stepwise on the front surface of the inclined surface, as a result, the ground E may constitute a stepped shape. . [Four-row unit] Ground stabilization unit 10 shown in FIG.
Is constituted by arranging bars in four rows.

In the first and third rows, long bars 12 are arranged. In the second row, a short bar 14 is arranged at the center, and diverting bars 16 are provided on both outer sides of the short bar 14 at intervals.
Is arranged. The middle bar 18 is arranged in the fourth row. The construction method of the unit 10 can be basically performed in the same manner as in each of the above-described embodiments. In the units 10 adjacent in the horizontal direction, the diverting bars 16 arranged in the adjacent row can be connected and fixed to each other by projecting obliquely behind the surface of the unit 10. In addition, the units 10 that are arranged vertically adjacent to each other may also use the turning bar 1
6 can be connected and fixed via a spacer between them. The units 10 that are vertically adjacent to each other and that are adjacent to each other in the diagonal direction in the diagonal direction may be connected and fixed via a spacer between the tips of the turning bars 16 that protrude diagonally from each other.

In the unit 10 having the four rows as described above, when the units 10 are connected and fixed by using the diverting bars 16, the diverting bars are compared with the units 10 having the six rows described above. The row spacing between the sixteen is reduced, and it is possible to easily connect in any of the vertical and horizontal directions.

[0048]

In the ground stabilizing unit and the ground stabilizing method according to the present invention, a unit in which a plurality of wooden rods are integrally connected is constituted, so that the transportation and storage and the handling during construction are efficiently performed. I can do it. Since only rods of different lengths are combined, the structure is relatively simple and easy to manufacture. At the time of construction, the units can be easily and accurately connected and laid such that the uneven structures generated at the ends of the bar rows having different lengths mesh with each other. The connection between the units is secure and strong. Moreover,
No special fittings or equipment are used, and only rods can be placed side by side on the surface after construction, which is far more than a ground stabilization structure using artificial fittings, nets, concrete, etc. It feels natural and does not impair the surrounding natural landscape.

The turning bar, which is one of the bars constituting the unit, functions as a retaining member for supporting the unit on the front surface of the ground when the unit is constructed, and ensures that the unit is supported on the ground. And the ground stabilizing action can be improved. The diverting bars are parallel to the unit surface before construction, making them easier to transport, store and handle by reducing the bulk.At the time of construction, they only need to change the direction from one end as a base point to support and stabilize the ground. Therefore, there is no need to separately prepare or connect a stay member, and the construction work is facilitated.

[Brief description of the drawings]

FIG. 1 is a construction front view of a ground stabilization unit showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in the preceding figure.

FIG. 3 is a cross-sectional view showing a state of construction on an inclined surface.

FIG. 4 is a front view (a) and a side view (b) of a construction state of a ground stabilization unit showing another embodiment.

FIG. 5 is a front view of a construction state of a ground stabilization unit showing another embodiment.

FIG. 6 is a side view of a construction state in which a diverting member is connected and fixed.

FIG. 7 is a side view in a direction orthogonal to the previous figure.

FIG. 8 is a cross-sectional view of a construction state showing another embodiment.

FIG. 9 is a sectional view showing a construction state of another embodiment.

FIG. 10 is a construction state front view showing another embodiment.

[Explanation of symbols]

 Reference Signs List 10 Ground stabilizing unit 12 Long bar 14 Short bar 16 Deflected bar 18 Medium bar 20 Connecting bolt

────────────────────────────────────────────────── (5) References JP-A-2000-34730 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 17/20 103 E02D 29/02 307-308

Claims (7)

(57) [Claims] Claims 1. A ground surface is laid side by side so as to cover a ground surface.
A planar unit to stabilize,Several wooden rods Four or more even-numbered rows arranged together
TiedTo form a planar unit, As the wooden bar,  Between the long bar arranged in every other row and the long barColumn ofso,At least one rowNot all rows
Row of fullAnd shorter than the long barAnd both ends are long
Located inside the ends of the shaku barBetween the medium bar and the long barColumn ofso,The medium bar is not placed
At least one rowArranged in rows and shorter than medium bar
And both ends are arranged inside both ends of the medium-sized bar.
A short bar and the same row as the short barOne end of which is a short rod
Outside of both ends of the bar, approximately the same as both ends of the medium bar
At the position on the inside, place it on both sides of the short bar.
Is connected to the placed long bar, and the other end is a short bar
In the extension direction of the unitFrom parallel directionsUnit surface and
IntersectionAnd project from the unit surfaceCan be turned to the directionIn
ToA ground stabilization unit including a turning bar. 2. The outer diameter D0 of each bar is substantially the same, and the total length L1 of the long bar and the total length L2 of the medium bar are 2 with respect to the outer diameter D0. .2 ≦ (L1−L2) / D0 (1), wherein the total length L2 of the medium bar and the total length L3 of the short bar are 2.2 ≦ (L2−L3) / D0. ≦ 2.5 (2) The ground stabilization unit according to claim 1, wherein: 3. The method according to claim 1, wherein D0 = 5 to 20 cm, L1 = 30 to 200 cm, L1−L2 = 10 to 180 cm, and L2−L3 = 10 to 50 cm. Ground stabilization unit. 4. The ground stabilizing unit according to claim 1, wherein the bar is a round bar made of thinned wood. 5. A method for stabilizing a ground surface using a soil stabilizer unit according to any one of claims 1 to 4, the columns of the bar are arranged in the vertical direction unit, Uni
Covering the ground surface in the surface direction of Tsu up surface arranged vertically and horizontally, a pair of unit adjacent in left and right, coordinated <br/> location upside down to each other, the other of said deflection rods of each unit The end side is diverted in a direction protruding from the back surface of the unit and embedded in the ground surface, and the pair of adjacent units on the left and right is one unit.
The end of the long bar at
Except for the long bar between the ends of the long bar placed in every other row
Into the row where the bars of
The ends of the long bars overlap in the vertical direction and mesh with each other
A ground stabilization method in which the ends of long rods on the left and right units are connected and fixed so that they can be aligned . 6. The pair of unit adjacent in the vertical or horizontal, according to claim 5 in which the tips of deflection bar which is deflected in a direction to protrude from the back surface of each unit connected fixedly embedded in the ground plane The method for stabilizing the ground according to the above. 7. A pair of the adjacent unit in the vertical, its
In each unit, placed in the outer row near the opponent's unit
The ground stabilization method according to claim 5 , wherein the rods are overlapped in a direction orthogonal to the unit surface .