JP3000074B2 - Slope greening method and mortar spraying formwork - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the construction of a legal framework on a slope,
Also, the present invention relates to a slope revegetation method performed by filling a revegetation growth base material and a mortar spraying formwork used for construction of a method frame.

[0002]

2. Description of the Related Art As one of the slope greening methods, there is a conventional method as shown in FIG. In this method, a wire mesh a is laid on a slope, and a reinforcing bar b is placed on the wire mesh a, and is fixed to the slope by an anchor pin c. Next, mortar d is sprayed around the reinforcing bar b to construct a grid-like or other legal frame on the slope. And the greening growth base material e is sprayed on the square of the law frame to complete the slope greening.

[0003]

In the above prior art, only the reinforcing bar b is a key for spraying the mortar d. For this reason, the shape of the legal frame becomes a gentle mountain shape, and in the case of a steep slope, when the base material e filled on the mountain side of the legal frame is weathered, there is a possibility that it collapses to the valley side along the mountain side surface of the legal frame. In addition, skill is required to spray the mortar d into a predetermined chevron shape, which causes problems such as labor costs.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a slope revegetation method capable of preventing collapse of a base material on a steep slope and easily performing construction. The purpose is to do.

[0005]

That is, the present invention relates to a slope revegetation method in which a slope is constructed on a slope and filled with a greening and growing base material. In the state where it was raised in the above, fixed to the slope with anchor pin,
Next, a mortar is sprayed on the perforated formwork to construct a legal form, and a slope prevention greening method is characterized in that a fall prevention surface of the greening growth base material is formed on the mountain side of the legal form. . Further, in a mortar spraying formwork used when a mortar is sprayed on a slope to construct a legal form, an L-shaped or semi-domed mortar spraying section having a perforated rising surface rising on the mountain side of the slope. This is a mounting formwork.

[0006]

Embodiment 1 <a> Shape of Form (FIG. 2) The form 1 is a perforated form made of a wire mesh material, expanded metal, a perforated plate, or the like. For example, as shown in FIG. ,
A rising surface 11 rising on the mountain side of the slope and an installation surface 12 continuing to the lower end of the rising surface 11 form an L-shaped cross section.

The size of the hole formed in the rising surface 11 is smaller than the size of the hole formed in the mounting surface 12.
Has the function of a squat board. Therefore, the rising surface 1
When the mortar is sprayed from the valley side to the mountain side, the mortar can be prevented from scattering to the mountain side.

<B> Attachment of Wire Mesh (FIG. 1) First, as shown in FIG. 1, a wire mesh 2 is attached over the entire slope. This wire mesh 2 is for suppressing the collapse of the greening growth base material 6 sprayed on the slope. Note that the wire mesh 2 is not required when spraying the soil containing fibers.

<C> Installation of Formwork (FIGS. 1 and 2) With the above-described formwork 1 in a state where the rising surface 11 is located on the mountain side of the slope, the anchor pin 3 is passed through the installation surface 12. Drive into the slope. When the anchor pin 3 is driven, a short pipe or a tubular spacer may be inserted into the mesh of the installation surface 12 and penetrated therethrough. The mold 1 is installed on a slope in the horizontal direction or the like in accordance with the shape of the legal frame. next,
A required number of reinforcing bars 4 are fixed to the upper and lower portions of the anchor pin 3 on the mountain side.

<D> Spraying mortar and base material (FIG. 1) A mortar 5 is sprayed on a mold 1 installed on a slope to construct a legal frame. At this time, the mortar 5 is sprayed obliquely from the valley side of the rising surface 11 toward the mountain side, but the mortar 5 can be prevented from scattering to the mountain side by the damping plate function of the rising surface 11. Therefore, the mortar 5 sprayed on the rising surface 11 stops forming a thin layer on the mountain side of the rising surface 11.

Therefore, the legal frame formed by hardening the mortar 5 has a fall prevention surface 51 having a portion substantially perpendicular to the slope on the mountain side. The rising surface 11 of the mold 1
Since the height of the mortar is set in advance, if the rising surface 11 is used as a ruler and spraying is performed to the upper end, the spraying height of the mortar can be accurately set.

After the legal frame is completed, the lattice-shaped squares and the like of the legal frame are filled with a greening growth base material 6 by spraying or the like. Since the filled base material 6 is locked on the fall prevention surface 51 of the legal frame, it is possible to prevent the collapse to the valley side even on a steep slope.

[0013]

Second Embodiment In the first embodiment, the reinforcing bar 4 is fixed on the upper part of the anchor pin 3. However, as shown in FIG. 3, the braided reinforcing bar 41 is disposed along the rising surface 11 of the form 1. It is also possible. In this case, the anchor pin 3 is driven in contact with the valley side surface of the rising surface 11.

[0014]

Third Embodiment As shown in FIG. 4, a mortar 5 is sprayed on a mold 1 to construct a legal frame, and then a wire mesh 2 is laid over the legal frame, and the wire mesh 2 is further embedded. The greening growth base material 6 may be filled by spraying or the like.

[0015]

Embodiment 4 In the above embodiment, an L-shaped formwork has been described, but a half-dome formwork 7 as shown in FIG. 5 can also be used. The formwork 7 includes a rising surface 71 that rises on the mountain side of the slope, and a roof surface 73 that is continuous with the upper end of the rising surface 71 and forms an enclosing space 72 on the valley side of the rising surface 71.
It is formed by the above.

The roof surface 73 may be curved or flat, and the braided reinforcing bar 41 may be mounted on the rising surface 71. Further, the size of the hole formed in the rising surface 71 is formed smaller than the hole formed in the roof surface 73, and the rising surface 71 has a function as a weir plate, as in the first embodiment.

The installation of the formwork 7 is performed as shown in FIG.
After the anchor pin 3 is driven into the slope, the mold frame 7 is put on the anchor pin 3 and the anchor pin 3 and the braided reinforcing bar 41 are connected. Next, the mortar 5 is sprayed into the surrounding space 72 from the valley side of the large roof surface 73 of the mesh.

The blown mortar 5 has a rising surface 7.
1 and become confined by being surrounded by the roof surface 73,
Form a thin layer along their outside. Therefore, the construction accuracy of the legal frame can be further improved. After the mortar 5 is hardened and a legal frame having a substantially vertical fall prevention surface 51 is constructed, the base material 6 is sprayed to finish the construction.

[0019]

Since the present invention has been described above, the following effects can be obtained. <B> Spraying of the sprayed mortar to the mountain side is suppressed by the rising surface on the mountain side of the formwork. For this reason, the legal frame formed by hardening the mortar has a fall prevention surface of the growth base having a portion substantially perpendicular to the slope on the mountain side. Therefore, since the base material filled on the mountain side of the legal frame is locked on this fall prevention surface, it is possible to prevent the slope from falling to the valley side.

<B> Since the mortar is sprayed from the valley side as described above, the sprayed mortar is blocked by the rising surface on the mountain side of the perforated formwork and does not scatter to the mountain side. Therefore, it is possible to form a legal frame having a surface for preventing the base material from collapsing with a minimum amount of mortar without spraying useless mortar on the mountain side, thereby reducing costs. <C> Since unnecessary mortar does not scatter on the mountain side, the landscape of the slope is not polluted, and cleaning after spraying is unnecessary, so that workability can be improved. <D> Since the mortar spraying operation may be performed from one side of the valley side, the movement of the worker on the slope is small, and the operation can be performed in a stable state. Therefore, the work can be performed easily, quickly, and with high accuracy, and the need for a skilled worker or the like is eliminated. In particular, those effects are great in construction on steep slopes.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a construction method according to a first embodiment.

FIG. 2 is an explanatory view of a mold according to the first embodiment.

FIG. 3 is an explanatory view of a construction method according to a second embodiment.

FIG. 4 is an explanatory view of a construction method according to a third embodiment.

FIG. 5 is an explanatory view of a mold according to a fourth embodiment.

FIG. 6 is an explanatory view of a construction method according to a fourth embodiment.

FIG. 7 is an explanatory diagram of a conventional technique.

Continuation of the front page (56) References JP-A-3-212513 (JP, A) JP-A-54-110606 (JP, A) JP-B 3-68176 (JP, B2) (58) Fields investigated (Int) .Cl. ⁷ , DB name) E02D 17/20 104 E02D 17/20 102

Claims (4)

(57) [Claims] 1. A slope greening method in which a slope is constructed on a slope and filled with a greenery growth base material, and a rising face rising on a mountain side of the slope and a lower face of the rising face.
A perforated form having an L-shaped cross section formed by an installation surface that is continuous with the end is fixed to the slope with an anchor pin in a state where the rising surface is raised on the mountain side of the slope with respect to the installation surface , A mortar is sprayed on the perforated formwork to construct a legal form, and on the mountain side of the legal form, a fall prevention surface of the greening and growing base material is raised along the rising surface and formed. , Slope greening method. 2. Construction of a legal framework on a slope, and a greening growth base
In the slope revegetation method that is performed by filling materials, a flat rising surface that rises to the mountain side of the slope and this rising surface
Gradually descends from the upper end of the slope to the valley side,
And a roof surface forming an enclosed space.
With the hole form, the rising surface stands on the mountain side of the slope with respect to the roof surface.
In the raised state, it is fixed to the slope with anchor pins, and then mortar is sprayed on the perforated formwork to construct a legal form
On the mountain side of this frame, the greenery grows along the rising surface.
The feature is that it is formed by setting up the fall prevention surface of the growth base material
The slope greening method. 3. The slope greening according to claim 1 or 2.
In the construction method, the mortar is sprayed from the valley side of the rising surface of the perforated formwork.
The fall prevention surface of the greening growth base material is
Characterized by mortar that has passed through the up surface
The slope greening method. 4. A mortar spraying a mold used in constructing the law frame by blowing the mortar on the slopes, and the rising surface of the perforated in planar launch the mountain slope, from the upper end of the rising surface A mortar spraying formwork formed by a roof surface that gradually descends to a valley side and forms a space surrounded by a valley side of a rising surface.