JP2001059222A - Slope formation form and slope formation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight slope formation form capable of being easily assembled and, at the same time, to provide a slope formation method capable of ensuring an even inclination of slope. SOLUTION: A slope formation form is so constituted that four bearing frames 1 bent in an approximately L-shape are connected with two joint members 2a and 2b at right angles to them and that diagonal sections of the bearings frames 1 are inserted in four openings 4 bored in six longer wall surface members 3 formed of timber from thinning to pile them up and are assembled. A resin grid body 11 is laid by bringing it into contact with the slope side of the slope formation form, and after soil is filled up to the half-length of the upper surface of the slope formation form and is rolled, further filled up to the height of the upper surface of the slope formation form to form a soil block 14, the resin grid body 11 is rolled back so as to wrap it, and operation for fixing the terminal thereof to the inside of a bedrock is repeated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope forming mold and a slope forming method using the same, and more particularly to a slope forming method, in which a wall member can be easily replaced and a steep slope can be efficiently removed. The present invention relates to a slope forming mold that can be constructed and a slope forming method using the same.

[0002]

2. Description of the Related Art Conventionally, several construction methods for safely constructing a steep slope have been known. For example, a method of embankment using a formwork formed of a net member or the like formed in an oblique L-shape and bent according to the slope of the slope (for example, Japanese Patent Publication No. 63-11488, Japanese Patent Application Laid-Open No. 6-185059, etc.) Alternatively, a formwork made of a lattice-like member is placed on a resin-like lattice-like body laid on the ground surface, and after embankment in the formwork, the resin-like lattice-like body is wrapped around the formwork. (For example, JP-A-3-51423, JP-A-7-1191)
No. 53, etc.).

[0003] In recent years, there has been a demand for a slope forming method that has an appearance that matches the surrounding environment. For example, a surface frame having a surface plate that can be directly incorporated into a natural scenery has been developed. A method of embedding and using directly on a slope has been reported (JP-A-11-717).
No. 59). The surface frame used in this method is prepared by preparing a long member having a width of about 15 cm and a length of about 1 meter in which a large number of projecting holes are provided on a surface made of a plated steel plate, and six such members are horizontally long. In parallel, these two ends are connected and fixed to two connecting members made of a C-shaped steel having a U-shaped cross section to form an integrated surface plate. The two base members made of an angle material and the surface plate are connected and fixed so as to form an angle of about 60 degrees.

In addition, instead of a long member made of a plated steel plate, a thinned timber having a length of about 2 meters is divided in half in the vertical direction to form a semicircular cross section. Prepared, six of these are arranged side by side with the rounded side facing the front, and both side edges are connected and fixed to two connecting members in the same manner as above to form an integrated surface plate. Used. In this case, it is said that the thinned wood is effectively used.

However, there are some problems in the slope construction method using such a surface frame. For example, the integrated surface plate is formed by connecting a plurality of elongate members horizontally in a row and connecting and fixing both side ends thereof to two connecting members. Must be formed beforehand in a factory or the like. Therefore, when the surface plate is a large product made of steel, the transportation operation is complicated.
In addition, when the surface plate and the base material connected thereto are separately formed and these are connected at the construction site, there is a problem in that the construction work takes time. In addition, when thinned wood is used, a step of dividing the thinned wood in half in the vertical direction to make the cross-sectional shape semicircular is added, so that the work efficiency is reduced.
In addition, since these thinned materials are fixed and integrated at both ends, if a part of the surface plate using the thinned materials is corroded or damaged by long-term use, the damaged parts are damaged. There is a problem that it is difficult to easily repair / replace.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a lightweight and easily assembleable even at a slope construction site, and to easily repair even if a part is corroded or damaged due to long-term use. It is to provide a slope forming mold. It is another object of the present invention to provide a method for forming a slope that can maintain a uniform slope on a slope even when the back ground of the slope is settled or a lateral pressure acts on the slope.

[0007]

According to the present invention, the following (1) and (2) are provided. (1) At least two support frames each including a slope and a bottom bent at an angle substantially equal to a predetermined slope are laid in parallel with at least two predetermined intervals, and the support frames are provided at predetermined positions on the bottom of the support frame. A slope forming method comprising: a connecting member coupled substantially orthogonal to a support frame; and a wall member having an opening at a predetermined position in a longitudinal direction so that an oblique portion of the support frame penetrates. Formwork.

(2) The slope-forming mold of (1) is placed and fixed on the slope-forming portion, and a resin lattice is laid in contact with the inner surface of the slope-forming mold, and the slope is formed. The embankment is rolled up to a predetermined height at an intermediate position between the tops of the forming form, and is compacted.Filling is performed to a height substantially equal to the top of the slope forming form, and at the top of the embankment. A soil block is also formed, and after rolling and shaping the soil block, the terminal portion of the resin-like lattice is wrapped around the soil block so as to wrap the soil block, and is wrapped to the back position of the soil block. Withdrawing the embankment material for fixing on the terminal portion of the resinous lattice-shaped body, and fixing the terminal portion of the resinous lattice-like body in the ground by rolling and rolling, and thereafter, until a predetermined slope height is reached. A method of forming a slope, wherein the above operation is repeated.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A slope forming mold according to the present invention comprises a support frame, a connecting member and a wall member. The support frame includes an inclined portion and a bottom portion that are bent in a substantially L shape so as to form an angle substantially equal to a predetermined slope of the slope, and at least two support frames are arranged substantially in parallel at a predetermined interval. Is done. The number of the support frames is
The number is 2 to 6, preferably 3 to 5. The distance between the support frames is not particularly limited, but is usually 20 to 1
00 centimeters, preferably 25-50 centimeters. The length of the inclined portion of the support frame is not particularly limited, but is usually 30 to 70 cm, preferably 40 to 60 cm. The length of the bottom of the support frame is not particularly limited, but is usually 30 minutes.
７０70 cm, preferably 40-60 cm. The angle between the bent slope and the bottom is
Although it is not particularly limited, it is usually 70 to 90 degrees. The support frame is usually formed of reinforced steel having a diameter of 15 to 30 millimeters, but various materials can be used as long as a predetermined strength is obtained.

[0010] The plurality of support frames are connected to each other at a predetermined position on the bottom of the support frame by a connecting member arranged substantially orthogonal to the support frames.
The method of joining by the connecting member is not particularly limited, but usually, it is joined by a method of welding or winding a thin metal wire such as a wire. The length of the connecting member is not particularly limited, but is usually 1 to 3 meters. The connecting member,
Usually, it is formed of a round steel bar having a diameter of 5 to 20 millimeters, but various materials can be used if a predetermined strength is obtained. The support frames are connected to each other by at least one connecting member. It is preferable to use two connecting members.

The slope forming frame of the present invention has a wall member made of a long rigid body. The wall member is usually 1 to 3 meters in length, 5 to 15 centimeters in thickness, and 10 in width.
It is a horizontal and long rigid body of up to 20 cm,
Openings through which the oblique portions of the L-shaped bent support frames penetrate are provided at predetermined positions in the longitudinal direction by at least as many as the number of the support frames. The shape of the opening is not particularly limited, but is usually a rectangle, an ellipse, or a circle. The size of the opening is usually 1
It is 5 to 40 mm, preferably 20 to 30 mm. The number of the openings is usually 2 to 5, preferably 3 or 4. The material used as the wall member is not particularly limited, and examples thereof include concrete, thermoplastic resin, and thinned wood. In particular, when thinned timber is used, it is effective for use development of thinned timber.

In the slope forming frame of the present invention, the elongated wall member is disposed so as to be orthogonal to the support frame, and the oblique portion of the support frame is inserted into an opening provided in the wall member. Then, a predetermined number of them are stacked and assembled. The number of wall members is not particularly limited, but is usually 2 to
There are six. The wall members are not connected to each other, and a slope portion formed by stacking a plurality of wall members is not integrally formed.

In the method for forming a slope according to the present invention, the method for forming a slope includes:
A step of placing and fixing the slope forming mold, and a step of laying a resin lattice in contact with the slope side of the slope forming mold,
Embankment and rolling to a predetermined height at an intermediate position of the top of the slope forming form, and further embankment to a height substantially equal to the top of the slope forming form; A step of forming a soil block together at the top end of the soil block, and after rolling and shaping the soil block, a step of rewinding the terminal portion of the resinous lattice-like body onto the soil block so as to wrap the soil block, A step of removing the embankment material for fixing onto the terminal portion of the resinous lattice-like material wound back to the back position of the earth block and rolling and fixing the terminal portion of the resinous lattice-like material in the ground. After that, there is a step of repeating the above operation until the predetermined slope height is reached.

In the above-described slope forming method, it is preferable that a predetermined slope forming portion is previously formed into a base surface which is leveled substantially horizontally by a leveling machine, and then the slope forming mold is placed and fixed. Further, in order to place and fix the slope forming mold, it is preferable to drive and fix an anchor pile.

It is preferable that the resin-like lattice is laid so as to be in contact with the inner surface, the corner between the inner surface and the bottom surface, and the bottom surface of the slope forming mold. When laying the resinous lattice, extend the end of the resinous lattice buried in the ground to the outside of the design limit slip surface, and rewind the other end to secure the margin. It is preferable to extend outside the wall member of the slope forming frame.

The resinous lattice-like body is formed by interweaving warp yarns and weft yarns using a reinforced stretched fiber bundle-like polyester fiber structure so that the stitches have a lattice shape of a predetermined size. It is preferable to use a flexible lattice mat coated with a vinyl resin.

After laying the resinous lattice-like material, the embankment material is scattered with a predetermined soil layer thickness, and is rolled to a first height up to a position approximately half the height of the top end of the slope mold. It is preferable to form a layer.

[0018]

The slope forming frame of the present invention is lightweight and can be easily assembled even at a slope construction site. By using an appropriate wall member, it is possible to form a slope having an appearance that matches the surrounding environment. Further, when the thinned wood is used as a wall member, the thinned wood can be effectively used. A simple structure in which multiple long wall members are not integrated, instead of being integrated, makes it easy to remove and repair even if some of the wall members are corroded or damaged due to long-term use. It is possible. According to the method of forming a slope of the present invention, a uniform slope of the slope can be ensured even when the back ground of the slope is settled or a lateral pressure acts on the slope.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a mold for forming a slope according to the present invention. FIG. In the present embodiment, the slope forming mold in FIG. 1 includes four support frames 1, two connecting members 2 a and 2 b, and six wall members 3.
In the present embodiment shown in FIG.
Has a length of 49 cm, the bottom 6 has a length of 45 cm, and is formed by bending a reinforcing rod having a diameter of 19 mm to an angle of about 84 degrees. The connecting members 2a and 2b are formed of deformed steel bars having a diameter of 10 mm and a length of 1.5 meters. The support frame 1 and the connecting members 2a and 2b are welded to each other at positions 5 cm (8) and 30 cm (7) from the bottom end of the support frame. In this embodiment, the slope mold is fixed to the ground by four anchor piles 9 (FIG. 1). The anchor pile 9 has a diameter of 16 mm and a length of 40 cm.

In this embodiment shown in FIG. 1, a thinned material is used as the wall member 3. The thinned material having a diameter of about 12 cm and a length of 1.5 meters is shaved on both sides to be 8 cm wide. Six things are used. The thinned wood is laid one by one so that the four L-shaped bent portions 5 of the four support frames 1 penetrate the four openings 4 provided in the longitudinal direction. As a form of thinned wood,
Thickness of top and bottom and one side of thinned wood (Fig. 3 (a)),
Thickened upper and lower surfaces of thinned wood (Taiko dropping material) (Fig. 3
(B)) and those in which the thinned wood is used in a round cross-sectional shape (round wood), etc. (FIG. 3 (c)), which are appropriately selected and used as needed.

Next, the construction procedure of the slope forming method of the present invention will be described. An example is one cycle from mounting and fixing a slope forming mold to a slope forming portion, laying a resin-like lattice 10 and embankment, and fixing an end 11a of the resin-like lattice 11. This will be described with reference to FIG.

A slope forming form is placed and fixed on the base surface (or the top end of the embankment one cycle before) that has been leveled substantially horizontally by a leveling machine (not shown) in advance (FIG. 4 (1)). . In order to mount the slope forming mold, first, in this embodiment, the bottoms 6 of the four support frames 1 are welded and connected with the two connecting members 2 and mounted on the base surface. Next, the four anchor piles 9 are driven in and fixed. It is preferable that the anchor pile 9 be driven so as to straddle a welded joint portion 8 between the bottom end of the support frame and the bottom of the support frame among the two connecting members.

In the present embodiment, the inclined portion 5 of the support frame 1
Has a length of 49 cm and a bottom 6 of 45 cm, and is formed by bending a reinforcing rod having a diameter of 19 mm to an angle of approximately 84 degrees. The connecting member is a deformed bar having a diameter of 10 mm and a length of 1.5 m.

Subsequently, the wall member 3 is placed (FIG. 4).
(2)). In the present embodiment, both sides of a thinned material having a diameter of about 15 cm and a length of 1.5 m are shaved, and five pieces having a thickness of 10 cm are aligned, and four thinned woods are provided in the longitudinal direction.
The oblique portions 5 of the support frame 1 which are bent in a substantially L-shape are respectively provided horizontally so as to pass through the openings.

Next, in this embodiment, the upper surface of the uppermost wall member 3a and the connecting member 2b on the end side of the bottom of the support frame are connected by the oblique tie 10 (FIG. 4).
(3)). By connecting the inclined ties 10, the supporting frame 1 is prevented from being deformed against the applied earth pressure through the embankment / rolling step performed in the next step.
FIG. 5 is a schematic cross-sectional view when the oblique tie 10 is used. In FIG. 5, the inclined tie 10 is made of a round bar steel having a diameter of 10 mm, a hinge 10c formed by welding a round bar steel to a wall member side end is provided, and a connecting member side end is formed in a hook shape 10b. The turnbuckle 1 is mounted so as to be orthogonal to the connecting member 2b and is provided at an intermediate portion.
0a adjusts the length. The hinge 10c is fixed such that only the half portion on the wall surface member 3a side is attached to the upper portion of the inter-wall member 3a.

Subsequently, the resin-like lattice 11 is laid.
In this embodiment, before laying the resin-like lattice-like body 11,
The inclined tie 10 attached in the previous step is temporarily removed (FIG. 4 (4)). To remove the italic body 10, the turnbuckle 10a is turned to remove the hook 10b at the end of the connecting member, the pin connecting the hinge 10b at the end of the thinned material is removed, and the half of the hinge is removed.

Next, the resin-like lattice-like body 11 is laid so as to be in contact with the inner surface, the corner between the inner surface and the bottom surface, and the bottom surface of the slope forming mold (FIG. 4 (5)). In this case, the resin-like lattice 1
1, the end 11b buried in the ground is extended to the outside of the design limit slip surface, and the other end 11a is extended to the outside of the wall member 3 of the slope forming frame while securing a winding margin. .
In the present embodiment, as the resinous lattice-like body 11, a Fourtrack (trade name, manufactured by Zeon Corporation) having a lattice size of 20 mm × 20 mm is used.

Next, the oblique tie 10 temporarily removed in the previous process is attached again (FIG. 4 (6)). Attachment of the oblique body 10 is performed by inserting a joint pin between a half of the hinge 10c attached to the end of the wall member and the half of the hinge at the end of the inclined tie, and attaching the hook 10b at the end of the connecting member. And then turn and tighten the turnbuckle 10a.

At this time, it is preferable to attach the vegetation mat 12 to the inner side surface of the wall surface formed by stacking the wall surface members of the slope forming frame (FIG. 4 (7)). This vegetation mat 1
Numeral 2 is made of a nonwoven fabric having a water retention property, is processed into a roll shape having a predetermined width in which seeds such as turf and fertilizer and culture soil are mixed, and is cut into a size to cover the inside of the wall surface. It is attached to the member 3 and a part of the bottom 6 of the support frame 1. This vegetation mat 12 can protect the surface of the slope by germinating seeds such as turf in a predetermined period after the slope has been constructed, and by rooting and breeding in the embankment of the slope, the slope of the slope can be washed away by rainfall and the like. Therefore, it is possible to effectively prevent the occurrence of slope failure.

Next, the embankment material 13 is scattered with a predetermined soil layer thickness, and is rolled to form a first layer 13a up to a position approximately half the height of the top end of the slope mold ( (FIGS. 4 (8) and (9)). Subsequently, embankment is performed to approximately the same height as the top end of the slope forming mold, and is compacted (FIG. 4 (9)) to form a soil block 14 having a trapezoidal cross section corresponding to the slope position (FIG. 4).
(10)). It is preferable that the earth block 14 is sufficiently compacted by a leveling machine (not shown) to be finished into a relatively solid block.

From this state, the end 11a of the resin lattice 11 is wound up so as to surround the earth block 14, and the end 11a is extended to the rear position of the earth block 14 (FIG. 4 (11)). At this time, it is preferable that the resin-like lattice 11 is set to a length such that the end 11a can sufficiently cover the rear position of the earth block 14. Then, the embankment material 15 for fixing is scattered on the resin-like lattice end 11a extending to the lower part of the step portion 14a (see FIG.
2)). When the embankment material 15 is rolled in this state, a tension is applied to the resinous lattice-like body 11 so as to pull the resinous lattice-like body 11 wound up so as to cover the slope surface upward.

By rolling the embankment material 15 for fixing, the resinous lattice 11 can be stretched up along the slope while applying a predetermined tension to the resinous lattice 11. As a result, a restraining force can be applied to the slope so as to press the slope from the outside, and the resinous lattice-like body 11 is applied in a state where a slight tensile force is applied along the slope, so that the uniformity is obtained. A slope having a good slope with a good slope can be formed (FIG. 4 (12)). Hereafter, this 1
By repeating the embankment work of the cycle, a slope having a predetermined height can be formed (FIGS. 6A to 6D). Furthermore, after a certain period of time after the embankment is completed, the turf of the greening mat 12 germinates and grows to cover the entire surface of the slope, and can play a role of protecting the slope.

[0033]

As described above, according to the present invention, there is provided a slope forming mold which is lightweight and can be easily assembled even at a slope construction site. The slope forming mold forms a slope having an appearance that matches the surrounding environment, and in particular, can effectively utilize thinned wood. In addition, a uniform slope is formed by the method of forming a slope according to the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a slope forming mold according to the present invention.

FIG. 2 is a perspective view showing an example of a connection between a support frame and a connecting member in the slope forming mold of the present invention.

FIG. 3 is a perspective view showing an example of a thinned material in the slope forming mold of the present invention. FIG. 3 (a) is a mode in which the upper and lower surfaces and one side of the thinned material are cut off, FIG. 3 (b) is a mode in which the upper and lower surfaces of the thinned material are cut off, and FIG. This is an aspect in the case of using a round cross-sectional shape.

FIG. 4 is a schematic construction sequence diagram showing one cycle of a construction procedure in a slope formation method using the slope formation mold of the present invention.

FIG. 5 is a cross-sectional view of an embodiment in which an inclined tie is used in the slope forming mold of the present invention.

FIG. 6 is a schematic cross-sectional view when a slope is formed by repeating the slope forming method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Support frame 2a, 2b ... Connecting member 3 ... Wall member 4 ... Opening 5 ... Sloping part 6 ... Bottom part 9 ... Anchor pile 10 ... Slanting tie 11 ... Resin-like lattice-like body 12 ... Vegetation mat 13 ... 1st layer 14 … Soil blocks

Claims (2)

[Claims] 1. A support frame comprising an inclined portion and a bottom bent at an angle substantially equal to a predetermined slope is laid in parallel at least two at a predetermined interval, and a predetermined position at a bottom of the support frame. A connecting member coupled substantially orthogonal to the support frame, and a wall member provided with an opening at a predetermined position in a longitudinal direction so that an oblique portion of the support frame passes therethrough. Surface forming formwork. 2. The slope forming mold according to claim 1, wherein the slope forming mold is placed and fixed on the slope forming section, and a resin lattice is laid in contact with an inner surface of the slope forming mold. The embankment is rolled up to a predetermined height at the intermediate position of the top end height of the top, and furthermore, the embankment is filled up to approximately the same height as the top end height of the slope forming mold,
A soil block is also formed at the top end of the embankment, and after compaction of the soil block, the terminal portion of the resin-like lattice is wrapped around the soil block so as to wrap the soil block. The fixing embankment material is pulled out onto the terminal portion of the resinous lattice-like material wound back to the back position of the block, and is rolled to fix the terminal portion of the resinous lattice-like material in the ground. A method of forming a slope, wherein the above operation is repeated until the height of the slope is reached.