JPH0971941A - Slope protection member and slope protection method using the member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slope protection member which is capable of protecting a slope definitely by way of an anchor fixed with the slope and being constructed with ease even if a steep slope of a natural ground or the like is to be constructed. SOLUTION: This invention relates to a slope protection member 100, which is provided with a base plate 11 having a plurality of pushing areas laid out on a slope, such as a natural ground or a side slope and an anchor support cylinder 15 which is integrated with the top of this base plate 11 substantially at the central part and which inserts fixedly an anchor fixed with the slope side and integrates a reinforcing member 14 with one pushing area 11a. The base plate 11 is reinforced with this reinforcing member 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective member for preventing the collapse of slopes such as natural ground and slopes, or for maintaining and protecting the landscape of slopes, and a protective construction method using the same. Is.

[0002]

2. Description of the Related Art Slopes such as natural rocks and slopes are prone to collapse if left unattended and are dangerous.
It must be protected by some means.
Even if there is no problem of collapse on the slope, it may be necessary to actively vegetate the slope to protect the surrounding landscape. For this vegetation to be effective, the slope must be protected by some means.

Therefore, conventionally, for example, an on-site spraying method frame construction method as shown in FIG. 25 has been adopted to protect the target slope. In this on-site spraying method frame construction method, first, the reinforcing bars and the formwork are assembled on the slope in the order as shown in (a) to (c) of FIG. 26 or (a) to (c) of FIG. Form a frame to which a finishing material such as mortar or concrete is easily attached,
By spraying or coating the above-mentioned finishing material on this frame, a concrete lattice-like frame reinforced with reinforcing bars and formwork is formed as shown in FIG. The on-site spraying method frame construction method and the grid-shaped frame formed thereby have the following advantages.

For each rebar and formwork, for example, in the case of a construction method using a wire mesh formwork, the weight of the formwork can be reduced, and therefore work at a high place is also possible. -In particular, since the wire-mesh formwork itself has a certain degree of flexibility, it is possible to form a frame that corresponds to the unevenness and curves of the slope. It becomes a perfect close contact and there is little unevenness (a space is created between the slope), and the grid-like frame is completely integrated with the slope. -Since each reinforcing bar and formwork are completely buried in the concrete lattice-shaped frame, this lattice-shaped frame will be sufficiently reinforced.

Although this is a field spraying method frame construction method having excellent effects as described above, since each reinforcing bar and formwork must be manually assembled as shown in FIG. 26 or FIG. Has the following problems. For example, on slopes that require urgent stabilization within a short time, such as slopes after an earthquake, mortar
It generally requires a certain period of time (e.g., 28 days or more) from the time when concrete is sprayed until a certain level of strength is developed. Therefore, there may be a problem in applying the above conventional method.

Further, as shown in FIGS. 28 to 32, there is a construction method (hereinafter referred to as a prefabricated construction method) in which a retaining wall to be formed on a slope is made into parts and these parts are assembled in a lattice on the slope. Being developed. In this prefabricated construction method, joints as shown in FIG. 30 and vertical beams and horizontal beams as shown in FIG. 32 are factory-produced in advance, and each joint has a grid shape as shown in FIGS. 28 and 29. An anchor is used to position and fix it so that it becomes the intersection of the frames, and each vertical beam and horizontal beam are connected to this joint to form a retaining wall as shown in FIG. 28. Stabilizing material such as green stone is packed on the back side of the wall to stabilize the slope.

In the prefabricated construction method shown in FIGS. 28 to 32, as shown in FIG. 32, each of the vertical beams and the horizontal beams is provided with a concrete beam main body around the center metal pipe. The beams are formed integrally with each other, whereby the weight of each beam is reduced. Therefore, in this prefabricated construction method, the difficulty of construction in the conventional construction method described above is solved, and the problem of carrying in although it is bulky is solved.

However, even in this prefabricated method,
The following new problems have to be resolved. That is, since each vertical beam and horizontal beam form a retaining wall by integrating a concrete beam main body around a metal pipe, it is not possible to sufficiently stabilize the slope by this alone. The connection of each vertical beam and horizontal beam to the joint must be done on a slope, and since the concrete beam main body is integrated around the metal pipe into a heavy weight, positioning adjustment is extremely difficult. The reality is that it is almost impossible without using a large mechanical force. In particular, each joint used in this prefabricated construction method is shown in FIG.
As shown in FIG. 0, in order to adjust the length of each beam, a metal pipe protruding at its end is simply inserted, and when the connection strength between the beams becomes sufficient. Is hard to think of. Since each joint used in this prefabricated method is only supported at the tip of the anchor, it is unlikely that the entire tension of the joint will be sufficiently strong. In particular, when fixing (fixing) the anchor to the natural ground, if a large load is applied to the joint, the joint may be damaged. In other words, this joint is unlikely to have sufficient bearing strength for fastening and fixing the anchor.

Therefore, the present inventors have completed the present invention as a result of various studies on how to solve the above-mentioned drawbacks of the conventional techniques.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and the problem to be solved is a further improvement of the conventional slope protection method.

That is, the object of the invention according to claim 1 is to ensure that the slope can be protected through the anchor fixed to the slope, and that the slope is steep. Another object of the present invention is to provide a slope protection member that can be easily installed with a simple structure.

On the other hand, the object of the inventions according to claims 2 and 5 is that it does not require such a large mechanical force and can be easily installed even on a steep slope of a natural ground. It is an object of the present invention to provide a slope protection member and a protection construction method capable of having a sufficient strength against bending strength and bearing pressure when anchors are tightened to protect slopes.

The object of the invention according to claims 3 and 6 is to achieve the same purpose as the invention according to claim 2 and claim 5, and to prevent corrosion of each column. And the protection member for the slope, which enables the weight of each column to be easily increased at the construction site and allows each member to be installed on the slope with sufficient rigidity and strength. To provide a construction method.

Further, the objects of the inventions according to claims 4 and 7 can achieve the same objects as the inventions according to claims 2 and 3 and claims 5 and 6, respectively. An object of the present invention is to provide a slope protection member and a protection method capable of completely eliminating at least the unevenness on the slope of each pressure receiving plate and further ensuring stable installation on the slope.

[0015]

In order to solve the above problems, first, the means adopted by the invention according to claim 1 will be described with reference numerals used in the embodiments described later,
"A base plate 11 arranged on a slope 200 such as a natural ground or a slope and having a plurality of pressing portions 11a, and an anchor 40 fixed to the slope 200 side, which is integrated with a substantially central upper surface of the base plate 11, is inserted. A sloped protection member 100 including an anchor support cylinder 15 that is fixed by fixing the reinforcing plate 14 to at least one pressing part 11a of the base plate 11 by reinforcing the reinforcing part 14 to the base plate 11. This is the slope protection member 100 ".

That is, the protection member 1 according to claim 1
00 is supported and fixed to the anchor 40 fixed to the slope 200 as shown in FIG. 19, for example, directly on the slope 200 or as shown in FIG. It is provided with a base plate 11 placed via 30. This base plate 1
1 presses on the slope 200, so to speak,
As shown in FIG. 1 or 3, a plurality of pressing portions 1 extending outward from a central portion where the anchor support cylinder 15 is integrated.
Since it has 1a, these pressing parts 11
In order to reinforce a, reinforcing portions 14 as shown in FIGS. 1 to 7 are integrally formed on the respective upper surfaces thereof.

Each of the reinforcing portions 14 is a plate-like member which is integrated so as to stand at right angles to each of the pressing portions 11a, so that the pressing portion 11a in which the reinforcing portions 14 are integrated has no warp or bend. This is to prevent and reinforce the pressing portion 11a. In addition to such reinforcement of the pressing portion 11a of each reinforcing portion 14 itself, each reinforcing portion 14 will be described later, for example, as shown in phantom lines in FIG. 6, FIG. 7, and FIGS. 10 and 11. By connecting the columns 20, the pressing portions 11a or the base plate 11 can be reinforced.

Of course, the protection member 10 according to the above claim 1
Since 0 is fixed to the anchor 40 on the slope 200, the anchor support cylinder 15 for inserting and fastening the anchor 40 is integrally formed in the substantially central portion of the base plate 11. Is as shown in FIG. 2 or FIG. Then, assuming that the fastening force via the anchor 40 cannot be evenly applied to the slope 200 only with the anchor support tube 15, the anchor support tube 15 is provided in the protection member 100 according to the present embodiment. It is configured to be housed in the center box 12.

On the other hand, in order to solve the above-mentioned problems, the means adopted by the invention according to claim 2 is likewise "a pressure receiving member fixed by an anchor 40 on a slope 200 such as a natural ground or a slope. A protection member (100) for a sloped surface (200) including a plate (10) and a plurality of columns (20) connected to the pressure reception plate (10). The pressure reception plate (10) includes a base plate (11) installed on the sloped surface (200) and a base plate (11) on the base plate (11). It is configured with a hollow center box 12 that is fixed,
Moreover, the center box 12 includes the column connecting portion 13 and the reinforcing portion 14 for each column 20, and the anchor 40.
An anchor support cylinder 15 for inserting the first and second attachment parts 21 connected to the column connection part 13 and the reinforcement part 14 on the pressure receiving plate 10 side at the end of each column 20, respectively. The protective member 100 of the slope 200 is characterized in that 22 is integrally formed.

That is, the protection member 1 according to claim 2
00 is a pressure receiving plate 10 including a base plate 11 and a center box 12 integrated with the base plate 11, and the pressure receiving plate 1
Multiple columns 2 connected to 0 center box 12
0 and the protection member 100 is attached to the slope 2
After being attached to a large number of anchors 40 fixed on 00, finishing materials such as mortar or concrete 5
By spraying or painting 0, the grid-like frame 100a such as concrete is formed on the slope 200. Then, the protective member 100 is finally provided with the slanted surface 2 by the lattice-shaped frame 100a formed thereby.
00, or form a frame for vegetation on the slope 200.

In that sense, the material, shape, and size of the base plate 11, the center box 12, or the column 20 are not limited, but these forms are more effective when they are made in the following embodiments. It will be the target. In addition, each column 20 may have a cross-sectional shape as illustrated in FIG. 8 in order to reduce the weight for facilitating transportation and construction as well as manufacturing. That is, the cross-sectional shape of the column 20 is, for example, a horseshoe shape (same (c)) or an oval shape (same (d)) as well as a circle ((a) and rectangle (same (b) in FIG. 8). Good to do.

Further, in order to solve the above-mentioned problems, the means adopted by the invention according to claim 3 is that the protective member 100 according to claim 2 is that "in the hollow portion 20a of each column 20,
An injection port 23 for injecting a cement liquid material such as mortar or cement milk or a foamable liquid material is provided in each column 2
No. 0 is formed at least one place, and the communication part 1 is provided at a part inside each column connecting part 13 of the center box 12.
7 is formed so that the cement liquid material or the foamable liquid material injected from the injection port 23 can be filled into the hollow portion 20a of each column 20 through each communication portion 17 ”.

That is, the protection member 1 according to claim 3
00 is the slope 2 of the protection member 100 according to claim 2, which is lightened by making the center box 12 on the pressure receiving plate 10 side and the inside of each column 20 hollow.
After being installed on the column 00, the cement liquid material or the foamable liquid material can be injected into each center box 12 and the column 20, and therefore the above configuration is adopted. Therefore, the protection member 10 according to claim 3
According to 0, by injecting the cement liquid material or the foaming liquid material into each of the center boxes 12 and the columns 20, the center boxes 12 and the columns 20 become solid bodies and the strength is increased, and the slopes 200 The strength as a protector is enhanced.

On the other hand, when the foamable liquid substance is injected into the column 20, it foams and solidifies in the column 20, so that the rigidity of the column 20 itself is increased. , In this case too, column 2
The strength of 0 becomes high, and the strength of the protection member 100 for protecting the slope 200 is increased.

Further, in order to solve the above-mentioned problems, the means adopted by the invention according to claim 4 is the means according to claim 2 or 3 above.
Regarding the protection member 100 according to the first aspect, “the pressure receiving plate 10 is disposed at least on the bottom surface of the base plate 11 and the cement liquid material or the foamable liquid material is injected to eliminate the unevenness of the base plate 11 with respect to the slope 200. The flexible member 30 is provided ”.

That is, the protection member 1 according to claim 4
00 is suitable for use when it is difficult to level the ground on the slope 200 and it is difficult to make the base plate 11 on the pressure receiving plate 10 side completely adhere to the slope 200, and it is interposed between the base plate 11 and the slope 200. By injecting the cement liquid material or the foaming liquid material into the flexible member 30 to be formed, the gap between the base plate 11 and the slope 200, in other words, the unsteadiness is completely eliminated, and the base plate is completely removed. Numeral 11 is such that the entire bottom surface thereof presses on the slope 200.

There are various conceivable configurations of the flexible member 30, but in the present embodiment, two flexible sheets are joined together by a means such as adhesion or sewing to form a bag. However, by sandwiching a mesh or flat metal plate between these two flexible sheets,
The surroundings may be integrated and implemented. Of course, it goes without saying that an injection port for injecting the cement liquid material or the foamable liquid material is provided in advance on the side of one flexible sheet.

As shown in FIG. 9, the column 20 may have an inverted U-shaped cross section with an opening at the bottom. When injecting a cement liquid material or a foamable liquid material, which will be described later, into such a column 20, these must be filled in the column 20, so that the column 20 is shown in FIG. It is necessary to provide such a flexible member 30, which will be described later.

In order to solve the above-mentioned problems, the means adopted by the invention according to claim 5 will be described with reference to the reference numerals used in the embodiment. Method of protecting slope 200 such as 1. (1) Base plate 11 installed on slope 200
And each column 2 fixed on this base plate 11
A pressure receiving plate 10 including a column connecting portion 13 for 0, a reinforcing portion 14, and a hollow center box 12 having an anchor support cylinder 15 for inserting an anchor 40, and a pressure receiving plate 10 at an end portion. Side first column connecting portion 13 and reinforcing portion 14 are respectively connected to the first and second mounting portions 21.
The step of preliminarily forming a plurality of hollow columns 20 in which 22 are integrally formed; Step (3) Column connecting portion 13 and reinforcing portion 14 of each pressure receiving plate 10
A step of preliminarily forming the protective member 100 including the pressure receiving plate 10 and the column 20 by connecting the first and second mounting portions 21 and 22 of the column 20 to each other; (4) each of the protective members 100. , Each base plate 1
Each anchor supporting cylinder 15 is inserted into each anchor 40 while 1 is on the slope 200, and each pressure receiving plate 10 is fixed to each anchor 40, so that each anchor support cylinder 15 is installed on the slope 200; In each protective member 100 on this slope 200, a finishing material 50 such as mortar or concrete is sprayed or painted on to form a lattice-shaped frame 100a covered with the finishing material 50 on the slope 200 ". is there.

That is, in the protection method according to claim 5, the protection member 100 according to claim 2 is used to form the lattice-shaped frame 100a on the slope 200, and in particular, the construction is performed. Each member necessary for the above is made hollow and divided, and this is used as one independent protective member 100 at an appropriate place on the construction site, and each protective member 100 is erected on the slope 200. Anchor 4
It is fixed at 0 respectively. Then, each protective member 100 is used as one mold, and a finishing material 50 such as mortar or concrete is attracted to or applied to the protective member 100 so as to be placed, and each protective member 100 is, so to speak, a core made of concrete. The frame 100a on the slope 200
It is what you configure above.

In the protection method for the slope 200 according to the fifth aspect, it is most preferable to perform the steps (1) to (5) described above in this order. For example, one independent protection member is used. When heavy machinery for lifting the 100 to a predetermined position on the slope 200 cannot be carried into the construction site, each component of the protection member 100 is replaced by the light machinery with the slope 20.
Carry it to the specified position of 0 and support it while protecting it 1
It is also possible to assemble as 00, and in that case, step (3) and step (4) are performed simultaneously.
It may be done in parallel.

In order to solve the above-mentioned problems, the means adopted by the invention according to claim 6 is the protection method of the slope 200 using the protection member 100 according to claim 5,
“During step (4) and step (5), (4-1) a cement liquid such as mortar or cement milk, or foam, is introduced from the injection port 23 formed in each column 20 into the hollow portion 20a thereof. By injecting the liquefied liquid material, the cement liquid material or the foamable liquid material is transferred to the other columns 20 through the respective communication parts 17 formed in the center box 12 and the respective column connection parts 13 thereof. The step of filling the hollow portion 20a;

That is, the slope 20 according to claim 5
The protection construction method of No. 0 is the protection member 10 according to claim 3 after the protection member 100 is assembled and installed on the slope 200.
The center box 12 on the pressure receiving plate 10 side which constitutes 0
Also, each column 20 is filled with a cement liquid material or a foaming liquid material, whereby the center box 12 and the hollow portion 20a are positively solidified. In other words, the protection construction method according to claim 5 is the slope
The protection member 100 before being mounted on the sloped surface 200 is divided into each of the constituent members and has a hollow shape so that they can be easily transported, assembled, and constructed. Hollow part 20 of each protective member 100
By injecting a cement liquid material or a foamable liquid material into the inside of a or the like, each protective member 100 is made to have a further sufficient strength.

Further, in order to solve the above-mentioned problems, the means adopted by the invention according to claim 7 is the above-mentioned claim 5 or 5.
Regarding the protection method of the slope 200 using the protection member 100 according to the above, "in the step (1), there is an injection port into which the cement liquid material or the foamable liquid material is injected, and at least the bottom surface of each base plate. A flexible member to be arranged on the side is also prepared, and the step (4) is performed.
(4-2) Step of inserting each of the protection members into each of the anchor support cylinders while allowing each of the base plates to be on the slope through each of the flexible members; (4) -3) After injecting the cement liquid material or the foaming liquid material into each of the flexible members and eliminating the unevenness between the pressure receiving plate and the slope, the pressure receiving plates are The process of installing on the slope by fixing with each anchor.

That is, the slope 200 according to claim 7
Is a protection method for the slope 200 using the protection member 100 according to claim 4, and therefore, the flexible member to be arranged between the base plate 11 on the pressure receiving plate 10 side and the slope 200. The condition is that 30 is prepared. The flexible member 30 is, as described in the protection member 100 according to claim 4 described above,
Although various embodiments are possible, this flexible member 30
The timing of injecting the cement liquid material or the foamable liquid material into the inside is not limited to the case described in the above configuration of the present invention, and the following cases can be considered.

For example, (a) to secure the flatness of the upper surface of the flexible member 30 when the cement liquid material or the foamable liquid material is injected, different from the base plate 11 on the pressure receiving plate 10 side. Be sure to use a plate material. In this case, the assembly of the protective member 100 onto the flexible member 30 is not a prerequisite, so the steps can be divided.

(B) A large number of protection members 100 are provided on the slope 200.
Injecting a cement liquid material or a foamable liquid material into each flexible member 30 at the time when the protection members 100 are connected to each other while being assembled on top. In this case, since the unevenness is eliminated after the protection members 100 are mounted on the slope 200, position adjustment and fine adjustment can be easily performed when the protection members 100 are connected.

(C) The flexible member 30 is fixed to the back surface of the base plate 11 on the pressure receiving plate 10 side in advance, and after the protection members 100 are installed, the cement liquid material or the foamable liquid material is placed in the flexible member 30. Injecting things. In this case, it is natural that the flexible member 30 need not be installed.

[0039]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to each claim constructed as described above will be explained based on the embodiments shown in the drawings. 7 is closely related to the protection construction method of No. 7, and the embodiment of the protection construction method described below substantially includes all of the above-mentioned inventions. The member 100 is mainly used.

The relationship between the embodiments shown in the drawings and the invention according to each claim will now be described. If the illustrated ones are used alone in FIG. 1 and FIG. The pressure receiving plate 10 to be the protective member 100 is shown. If the column 20 is connected to the pressure receiving plate 10, the protective member 100 according to any one of claims 2 to 4 shown in FIGS. 10 to 24. It will be. In addition, in FIG. 3 and FIG.
A protection member 100 according to claim 1 is shown, and as shown in FIG. 5, the protection member 100 protects the slope 200 by itself. Then, even with the protection member 100 shown in FIGS. 3 and 4, by connecting the column 20 to the protection member 100, for example, as shown in FIGS. 6 and 7, according to claims 2 to 4. Protective member 100
It can be.

Now, the protection member 100 according to claim 1, the protection member 100 is of two types, that is, the embodiment 1 shown in FIGS. 1 and 2 and the embodiment 2 shown in FIGS. 3 and 4. Therefore, in the protection member 100 of the first embodiment, the column connecting portion 13 for allowing the column 20 described later to be positively connected is formed in the center box 12, and the inside of the center box 12 and each column 20 are formed. A communication part 17 for communicating with the inside is formed in the center box 12. In the protection member 100 of the second embodiment shown in FIGS. 3 and 4, the column connecting portion 13 and the communicating portion 17 are provided.
Is not formed.

In any case, as shown in FIGS. 1 to 4, the protection member 100 according to claim 1 is arranged on a slope 200 such as a natural ground or a slope, and has a plurality of pressing portions 11a. The base plate 11 has the base plate 11 and an anchor support cylinder 15 that is integrated with a substantially central upper surface of the base plate 11 and inserts and fixes the anchor 40 fixed to the sloped surface 200 side. The reinforcing portion 14 is integrated with one pressing portion 11 a, and the base plate 11 is reinforced by the reinforcing portion 14. That is, this protection member 100
Is to protect the slope 200 by itself, and as shown in FIG.
It is intended to stabilize the slope 200 by pressing on the slope 200 by 1a.

In other words, the protection member 100 according to claim 1.
Is completed in the state shown in FIGS. 1 to 4, is integrally formed in advance in a factory, and is transported to a construction site for construction. Therefore, the protection member 100 is extremely lightweight and can be easily transported and constructed.

Then, the protection member 10 according to the first aspect of the present invention.
0, each pressing portion 11 of the base plate 11
Since the reinforcing portion 14 is integrally formed on the a, even if the base plate 11 is formed of a plate-like member such as a steel plate, the rigidity of the pressing portion 11a is greatly increased by each reinforcing portion 14. Since it is high, the slope portion 200 can be reliably pressed by each pressing portion 11a when fixed to each anchor 40, and this pressed state can be maintained for a long period of time.

There are various conceivable shapes of the reinforcing portion 14, but basically the base plate 11 is easy to handle and manufacture, and the base plate 11 can be easily integrated. It is a plate-like object similar to 11, and is formed of the same material as the base plate 11. In addition, these reinforcing portions 14
It is sufficient to obtain the required rigidity by setting the height of each to the extent shown in FIG. 2 or FIG. By doing so, it is possible to reduce the number of protrusions while ensuring sufficient rigidity.

The inner end side of each reinforcing portion 14 toward the center box 12 may have various shapes as required. For example, in the protection member 100 shown in FIGS. 1 and 2, as shown in FIG. 12, the column 20 is connected to the protection member 100, and ready-mixed concrete is placed around the column 20 to form a lattice-shaped frame. In this case, in order to allow the concrete to flow into the opposite side,
The inner end side of 4 is slightly separated from the center box 12 to form a space for pouring fresh concrete between them.

On the other hand, in the protection member 100 shown in FIGS. 3 and 4, it is not necessary to consider the flow of green concrete, so that the inner end of each reinforcing portion 14 is brought into contact with the center box 12 and both of them are brought into contact with each other. We are trying to integrate them.
That is, in the protective member 100, the inner end of each reinforcing portion 14 is fixed to the center box 12 side by means such as welding, and the rigidity of the pressing portion 11a by each reinforcing portion 14 is further enhanced. Is there. Needless to say, the shape of each reinforcing portion 14 may be a rectangular shape as shown in FIG. 4A, but as shown in FIG. The contact portion 14b having a height not less than half the height of the center box 12 is integrally formed on the inner end side, and the contact portion 14b is fixed to the center box 12 side. May be. This figure 4
In the case of (b), the action of each reinforcing portion 14 is made more effective, and each pressing portion 11a is reinforced, and the base plate 1 of the center box 12 is of course processed.
It goes without saying that the integration on 1 can be performed more reliably.

The protective member 100 as described above is attached to the anchor 40 which is previously fixed on the slope 200 as shown in FIG. 6, for example, but in this case, it is projected on the slope 200. Protective member 10 on the anchor 40
The anchor support cylinder 15 of 0 is inserted. Then, an excess portion of the anchor 40 protruding above the center box 12 is cut off, and a nut 41 is screwed to the top of the anchor 40 as shown in FIG. 4, and also shown in FIG. 6 or 12. As you can see, nut 4
The whole of No. 1 is covered with an anticorrosion cap.

A problem with this construction is that the protection member 100 is uneven on the slope 200, that is, the slope 2
00 has a space on the lower side of the base plate 11 of the protection member 100 due to the unevenness of the upper surface. In the case of a general construction site, this unevenness causes no problem if the slope 200 is leveled before each protection member 100 is installed, but the slope 200 cannot be leveled sufficiently. At the construction site, it is solved as follows. That is,
As shown in FIG. 6, a flexible member 30 that can inject a cement liquid material, a foamable liquid material, or the like is provided between the pressing portion 11a forming the base plate 11 and the slope 200. If the cement liquid material or the foamable liquid material is injected into the flexible member 30 after the installation of the protective member 100 is completed, the unevenness is completely eliminated.

Further, the protection member 10 shown in FIGS.
0 is the pressure receiving plate 1 described in claims 2 to 4.
The pressure receiving plate 10 may be used as the protective member 100 as a whole by connecting the columns 20 to the reinforcing portions 14 of the pressure receiving plate 10. The state of use in this way is shown in FIGS. 10 and 11, which means that FIG.
The same applies to the protective member 100 shown in FIG. That is, each reinforcing portion 1 of the protection member 100 shown in FIGS.
4, the mounting holes 14a are respectively formed as shown in FIG. 4, so that as shown in FIGS.
If the columns 20 are connected using these mounting holes 14a, a protection member 100 similar to that shown in FIG. 10 is constructed.

The description of the embodiment centering on the protection member 100 according to claim 1 has been given above, but next is the description of the embodiment.
The following describes the protective member 100 or the protective construction method. In this case, the protection method according to each claim is the protection member 1
Since the invention relating to No. 00 is substantially included as described above, the following description will focus on the embodiment of the protection method.

FIG. 10 shows a protective member 100 according to the present invention.
Is used to show a partial cutaway plan view of a state in which the slope surface 200 is protected, and the case where the protection members 100 are connected to each other at the outer ends of the columns 20 is shown. In other words, the protective members 100 may be used and constructed independently of each other, but here, the case where the concrete grid-shaped frame 100a is formed on the slope 200 will be described. Is.

Each protective member 100 has the pressure receiving plate 10 as shown in FIGS. 1 and 2 and the plurality of columns 20 as shown in FIG. 13 or 14 as its basic constituent members. As shown in FIG. 12, each column 20 is connected by the column connecting portion 13 and the reinforcing portion 14 on the pressure receiving plate 10 side by using the first attaching portion 21 and the second attaching portion 22 thereof. is there. As shown in FIGS. 1 and 2, the pressure receiving plate 10 includes a base plate 11 arranged on the slope 200 and a center box 12 integrated on the upper surface side of the base plate 11. is there.

The base plate 11 has a plurality of protective members 1.
When 00s are connected to form a grid-shaped frame 100a, they are positioned at the intersections thereof, and as shown in FIG. 1, a square metal having a predetermined thickness (usually 22 mm is common). By forming the notches 16 at the four corners of the plate (an iron plate is mainly used), the four pressing portions 11a are formed in a substantially star shape that radially projects. The shape of the base plate 11 is not limited to that shown in FIG. 1, but various conceivable shapes are possible. For example, when the lattice-shaped frame 100a to be completed has a honeycomb structure, each pressing portion 11a is Three pieces are projected at an angle of 120 °. In particular, the base plate 11 applies a pressing force directly onto the slope surface 200 to provide the slope surface 20.
Since it directly protects 0, it is better to have a larger area, but considering the weight reduction for transportation,
It is preferable to form the cutout portion 16.

Of course, this base plate 11 is shown in FIG.
As also shown in FIG. 5, the anchor 40 is erected and fixed on the slope 200.
A hole 11b for inserting the anchor 40 is formed. In addition, the base plate 11 of the embodiment is
The width is about 120 cm, and each pressing portion 11
The width of the tip of a is about 40 cm, but it goes without saying that the present invention is not limited to this.
The base plate 11 may be provided with ribs 11c as shown by phantom lines in FIG. 11 in order to compensate for the strength when the center box 12 and the reinforcing portion 14 to be described later are attached. It's good.

The center box 12 is literally box-shaped, but the shape also differs depending on how many columns 20 to be described later are connected. This center box 12 has each column 20 connected to it.
It has a size of about 40 cm in order to sufficiently transmit the force from the side to the base plate 11 side, and has a hollow shape in order to reduce its own weight.

On each side wall of the center box 12,
Although the column connection portion 13 for the column 20 is formed, in the present embodiment, the plurality of screw holes 13a are provided so that the bolt can be screwed. As shown in FIG. 2, the column connecting portion 13 which is the screwing hole 13a utilizes the entire surface of one side wall of the center box 12 as a contact supporting portion for the column 20. In some cases, a plurality of communicating portions 17 through which a cement liquid substance such as mortar or cement milk or a foamable liquid substance can be passed are formed between the screw holes 13a. Of course,
Each side wall of the center box 12 is a base plate 1
1, the center box 12 is fixed to the base plate 11 in the form of a box.

On the other hand, on the base plate 11 facing each side wall of the center box 12, a linear reinforcing portion 14 is fixed as shown in FIGS. Each of these reinforcing portions 14 supports the lower surface of the column 20, and opposes the center of the wall surface of the center box 12 where each column connecting portion 13 is formed so as to be orthogonal to the center thereof. Each reinforcing portion 14 illustrated in FIG. 1 and the like, with a slight gap formed between the reinforcing portion 14 and the center box 12,
Although it is integrated on the base plate 11, the end portions of each of the reinforcing portions 14 may be fixed to the center box 12 side for implementation. In this case, not only the base plate 11 and the center box 12 but also the column 20 and the pressure receiving plate 10 can be surely connected. Therefore, the strength of the protective member 100 should be further increased. You can On the other hand, in the reinforcing portion 14 of the present embodiment, in order to ensure the connection of the column 20 to the base plate 11 by making full use of the size thereof, as shown in FIG. The part is made to coincide with the tip of the pressing part 11a.

At the center of the center box 12, as shown in FIGS.
The anchor support cylinder 15 communicating with the insertion hole 11b at the center of the side is integrated, and the pressure support plate 10 has vertical through holes by the anchor support cylinder 15. That is, the anchor support cylinder 15 is inserted through the anchor 40 when fixing the pressure receiving plate 10 to the anchor 40, and when the pressure receiving plate 10 is fastened to the anchor 40, the anchor support cylinder 15 is fixed.
The fastening force is applied to the upper end of the center box or the upper surface of the center box 12. Therefore, the anchor support cylinder 15 and the center box 12 having the anchor support cylinder 15 are most suitably made of a metal material having high rigidity.

Each column 20 to be connected to the pressure receiving plate 10 as described above is constructed, for example, as shown in FIG. 13 or FIG. 14, and is hollow in order to reduce its weight. It is formed as a pillar having a portion 20a. In other words, each of these columns 20
Is formed by using a pipe material, but various shapes such as those shown in, for example, FIG. 8 can be applied not only in the case of a rectangular tube or cylinder. That is, each column 20 has various cross-sectional shapes, such as the circle shown in (a) of FIG. 8, a rectangle including the square of (b), a horseshoe shape of (c), or an egg shape of (d). A tubular object is applied.

The sectional shape of each column 20 is as follows.
The present invention is not limited to the hollow shape as shown in FIG. 8, but may be implemented as an inverted U-shape with an open bottom as shown in FIG. Such an inverted U-shaped column 2
No. 0, when injecting the cement liquid material or the foamable liquid material into it, the cement liquid material or the foamable liquid material flows out from the lower opening as it is. As described above, the sheet-shaped flexible member 30 is provided over the entire opening portion, or, as shown in FIG. 9B, the mounting portion 31 is provided along the longitudinal direction of the outer surface of both lower ends of the column 20. It is provided and this mounting part 31
It is advisable to store the bag-shaped flexible member 30 therein.

In the column 20 provided with the sheet-like flexible member 30 as shown in FIG. 9A, when the cement liquid material or the foamable liquid material is injected into the column 20, the flexible member is formed. Since the column 30 seals the inside of the column 20, it is natural that the cement liquid material or the foamable liquid material does not flow out to the outside, and the flexible member 30 completely follows the unevenness on the slope 200. Therefore, the unevenness between the column 20 and the slope 200 is completely eliminated. Further, in the column 20 as shown in FIG. 9B, after the column 20 is arranged on the slope 200 and connected to each pressure receiving plate 10, the cement liquid material or the foam is formed in the bag-shaped flexible member 30. The liquefied liquid is injected, which eliminates unevenness on the slopes 200 at the lower ends of both ends of the column 20, and the flexible member 30 keeps the inside of the column 20 in a sealed state. Therefore, if the cement liquid material or the foamable liquid material is injected into the column 20 again, these will be completely filled in the column 20 without leaking out of the column 20.

Since each of the columns 20 is connected to the pressure receiving plate 10 described above, as shown in the left part of each of (a) in FIGS. 13 and 14, the left end face thereof is formed. The first mounting portion 21 and the second mounting portion 22 are integrally provided on the lower surface of the left end portion. The first mounting portion 21 is, for example, as shown in FIG. 13C, a rectangular shape fixed to the end of the column 20 with the hollow portion 20 a open, and the first mounting portion 21. Is provided with a plurality of mounting holes 21a respectively facing the screw holes 13a on the pressure receiving plate 10 side.

On the other hand, as shown in FIG. 2, the second mounting portion 22 is fixed together with the reinforcing portion 14 on the pressure receiving plate 10 side. As shown in (a), the mounting hole 22a facing the mounting hole 14a on the reinforcing portion 14 side is formed. The end portion of the second mounting portion 22 on the side of the first mounting portion 21 may be positioned slightly away from the first mounting portion 21, as shown in FIG. , May be formed at a position where the first mounting portion 21 is completely abutted,
The reason is the same as in the case of the reinforcing portion 14 described above.

Further, in each column 20, especially in FIG.
As shown in FIG. 3A, the injection port 23 is formed in the portion opposite to the first mounting portion 21, and the injection port 23 is closed by the plug 23a. The injection port 23 is used when injecting a cement liquid material such as mortar or a foaming liquid material into the hollow portion 20a of the column 20 or air pushed out by the injection of the cement liquid material or the foaming liquid material. Is used as an air hole for discharging, and is not used when the cement liquid material or the foamable liquid material is not injected into the column 20. When the column 20 is connected to the pressure receiving plate 10 and assembled as the protection member 100, the respective injection ports 23 are hollow portions 20 of the column 20.
a and the communication part 17 on the pressure receiving plate 10 side, the base plate 11 and the hollow part 20a of the other column 20 are communicated with each other. By injecting the liquid material, the cement liquid material or the foamable liquid material becomes the base plate 11 when it becomes the protective member 100.
And, it is also injected into the hollow portion 20a of the other column 20.

In the protection member 100 of this embodiment, the protection members 100 are connected to each other on the slope surface 200, and finally the slope surface 200.
Since the grid-shaped frame 100a made of concrete is formed on the top, another protection member 10 is provided at the outer end of each column 20.
A connecting portion 24 for connecting with the column 0 of 0 is formed. As the connecting portion 24, the columns 20 facing each other
The protective member 100 of the present embodiment may have any shape as long as it can connect the ends of the connecting hook 24a shown in FIG. 13 and the connecting hole shown in FIG. Two types, 24b, are used. That is, the connecting hook 24a is locked in the connecting hole 24b which faces the connecting hook 24a, and the column 20
It is designed to be able to be advanced and retracted against. In such a case, it is practically impossible for the distance between the protection members 100 on the slope 200 to be a predetermined and accurate value. Therefore, by screwing / retracting the connecting hook 24a, it is possible to eliminate the variation in the distance between the protective members 100 and to make the tension force when connecting the columns 20 constant. It is the one.

Each column 20 is made of a metal pipe material so that the tension on the slope 200 can be made sufficient. Lattice frame 10 for performing only the vegetation of
When the pressing force on the inclined surface 200 is not required so much for the lattice-shaped frame 100a as in the case of 0a, each column 20 may be formed by using a synthetic resin as a material.

In addition, when the finishing material 50 such as mortar is sprayed onto the protective member 100 assembled in a grid pattern on the slope 200 to form the concrete grid frame 100a, each column 20 is used. However, it is advantageous to have a shape in which mortar or the like is easily attached, but in the present embodiment, a large number of skirt plates 60 are used. This skirt plate 60 can be used for each column 2 as shown in phantom lines in FIGS. 13 and 14 or as shown in FIG.
The fin is integrated into a fin shape at a predetermined interval on the outer periphery of 0, and is, for example, a disk shape as shown in FIG. Of course, the shape of the skirt plate 60 is not limited to the disc shape, and may be, for example, according to the sectional shape of the column 20.

By the way, when each column 20 is connected to the pressure receiving plate 10 as the protection member 100 and the protection member 100 is connected and fixed to the anchor 40 on the slope 200, the base plate 11 and the slope 200 of the protection member 100 are connected. It is quite possible that there will be a part that does not come into close contact with, that is, an uneven part. As shown in FIG. 11 or FIG. 2, this unevenness is caused in the flexible member 30 interposed between the base plate 11 and the sloped surface 200 by the cement liquid material or the foamable liquid material from the injection port formed in the flexible member 30. It is solved by injecting a substance and expanding it.

The flexible member 30 having such an area as or smaller than that of the base plate 11 is formed by, for example, bonding the peripheries of two flexible sheets. It is flexible and liquid-tight so that a cement liquid material or a foamable liquid material can be stored and prevented from leaking until it solidifies. Such a flexible member 30 is used for the base plate 11
The protective member 100 to be assembled may be previously integrated with the lower surface of the above, but may be arranged before the anchor 40 installs it on the slope 200.

The flexible member 30 can be formed by, for example, the above-mentioned simple two flexible sheets.
A material which can insert a wire mesh to be a reinforcing core material for concrete between these two sheets, or is a simple plate material on the side closely contacting the lower surface of the base plate 11, and which can flex or expand only the sheet contacting the sloped surface 200. It may be formed by the following method.

The protective construction method according to the present invention using the protective member 100 as described above will be described in detail as follows.

First, in the protection method exemplified in the embodiment,
In carrying out this, “(1) the base plate 11 installed on the slope 200 and the base plate 1
Column connection 1 for each column 20 fixed on 1
3 and a hollow center box 1 having a reinforcing portion 14 and an anchor supporting cylinder 15 for inserting the anchor 40
2, the pressure receiving plate 10 and the pressure receiving plate 10 at the end.
A plurality of hollow columns 20 integrally formed with the first and second attachment portions 21 and 22 which are respectively connected to the column connection portion 13 and the reinforcement portion 14 on the side. It does not happen. By doing so, not only can each component of the protective member 100 be easily manufactured, but also each member can be easily stored and transported. This is because the member of each protection member 100 is subdivided into the pressure receiving plate 10 and the plurality of columns 20 connected thereto, and the center box 12 and each base plate 11 of the pressure receiving plate 10 are hollow. This is because it has been made lighter.

In forming the pressure receiving plate 10 of the protective member 100, the base plate 11 is formed so that the lower parts of the columns 20 are radially projected as shown in FIG. It should be of a type.
This is because the presence of each pressing portion 11a causes the pressing portion 11a to cover the slope 200 over a wide area. Further, when the columns 20 are arranged on the pressing portions 11a to form the lattice-shaped frame 100a, the pressing portions 11a are completely embedded in the lattice-shaped frame 100a. This is also because the slope 200 can be exposed sufficiently large and sufficient vegetation can be applied to it.

Further, the protection member 100 according to the present invention basically has the anchor 4 which is erected in advance on the slope 200.
Since it is attached to 0, the attachment is
This can be easily performed by an anchor support cylinder 15 provided in the center of the center box 12 on the pressure receiving plate 10 side. The reason is that the anchor support cylinder 15 penetrates the front and back of the pressure receiving plate 10 as shown in FIGS. 1 and 2. Also,
This is because, if the anchor support cylinder 15 is inserted into the anchor 40, not only the positioning with respect to each anchor 40 but also the fixing to the anchor 40 can be easily performed.

The protective member 100 according to the present invention is
Although a plurality of columns 20 are connected to one pressure receiving plate 10 to form one independent unit, the connection can be easily performed and the strength after connection is also sufficient. It is like this. The connection of each column 20 to the pressure receiving plate 10 is made as shown in FIG. 12, but the connection of the first attachment portion 21 on the column 20 side to the column connection portion 13 formed in the center box 12 is made as follows. This is because it can be performed with a fastening bolt that is inserted from the right side of the first mounting portion 21 in the drawing.
This is also because the second mounting portion 22 on the column 20 side can be connected to the reinforcing portion 14 by fastening the nuts to the inserted bolts. Further, the column 20 connected to the pressure receiving plate 10 in the state shown in FIG. 12 is connected to the pressure receiving plate 10 at two positions, that is, the left end surface in the figure and the lower surface orthogonal to this. The connection of each column 20 to the pressure receiving plate 10 is also made with sufficient strength.

Now, referring to FIGS. 16 to 24, a case where the protective member 100 according to the present invention is used to actually carry out the protective construction method according to the present invention will be described.
“(2) Plural anchors 40 must be erected at predetermined positions on the slope 200 that has been subjected to predetermined pretreatment such as leveling.” This work is performed in the order of FIGS. 17 to 19, but here, as in the conventional construction method, a hanger pipe (also called a center pipe) is attached around the anchor 40. . As shown in FIG. 11, this hanger pipe is used to firmly fix the protection member 100 assembled to the anchor 40. It should be noted here that the pressure receiving plate 10 has sufficient strength to bear the bearing pressure when the anchor 40 is fastened and fixed, as will be described later.

The slope 2 after each anchor 40 is fixed upright.
As shown in FIG. 10 and FIG. 16, lath (so-called wire mesh) may be stretched over the entire surface of 00. The slope 200 is protected by a lattice-shaped frame 100a formed according to the present invention and a finishing material 5 such as concrete on the slope 200 exposed in the openings formed between the lattice-shaped frames 100a.
It may be made by a protective wall formed by driving 0. Since the protective wall is formed by using the above-mentioned lath as a core material, the lath may be stretched before or after the anchors 40 are erected.

After the anchor 40 is erected, it is also possible to pour mortar on the surface of the sloped surface 200 around which the anchor 40 is erected to flatten it. This mortar is for eliminating unevenness on the slope 200 of the protection member 100 attached to the anchor 40. When the slope 200 is flattened by this mortar, the flexible member 30 described later is adopted. It is natural that nothing is done.

Each anchor 40 includes a protective member 100 connected to the anchor 40 and a lattice-shaped frame 10 formed on the basis of the protective member 100.
0a is firmly held against the slope 200, and is used for pressing the slope 200 by the lattice frame 100a or the like. Therefore, as shown in FIG. A liquid material or a foamable liquid material is injected. This allows each anchor 40
The upright / fixed state with respect to the inclined surface 200 can be reliably maintained for a long period of time, and the protection member 100 or the lattice-shaped frame 100a can be held by these anchors 40 with high strength.

Then, "(3) By connecting the first and second mounting portions 21 and 22 of each column 20 to the column connecting portion 13 and the reinforcing portion 14 of each pressure receiving plate 10, these pressure receiving plates 10 and The protective member 100 including the column 20 is formed beforehand.

That is, although not shown, each protection member 100 is preassembled and so-called "groundwork" not on the slope 200 but at a horizontal place where the machine of FIG. 20 is located. Before assembling the protective member 100, it goes without saying that each member must be carried in to the ground assembly position, and each member must be positioned for connection, but in the pressure receiving plate 10. Since the center box 12 has a hollow shape and each column 20 to be connected thereto is also a hollow shape, each of them has a light weight, and this is combined with the division of each member. The carrying and positioning work of these can be performed relatively easily without using a large heavy machine.

For example, the pressure receiving plate as a precast product used in the conventional method has a design anchor of 5 to 100 tons.
If n, the unit weight is from 2400 Kg to 300
While it is about 0 kg, the protective member 100 of the present invention has a light weight of 500 kg to 800 kg. Therefore, while the conventional pressure receiving plate is hoisted on the slope using a relatively large crane, according to the present invention, the protection member 100 allows the protection member 100 to be lifted on the slope 200 by a relatively simple hoist.
Can be hung up on. This is because, as shown in Table 1, the protection member 100 of the present invention is lighter, which is about one third to one fourth of the weight of the conventional pressure receiving plate.

[0084] Condition: Cross type, width 3M

The protective members 100 shown in FIG.
Is assembled as a cross shape in which four columns 20 are projected from the pressure receiving plate 10. However, regarding the protection member 100 to be located at the upper edge, side edge or corner portion of the slope 200, For example, two columns, three columns 2
It goes without saying that 0 is used to form a T-shape or an L-shape. Such selection can be freely made if the center box 12 constituting the pressure receiving plate 10 of each protection member 100 has a quadrangular shape as shown in FIG. 10 and the four walls thereof. This is because the column connecting portion 13 is formed in each of the above, and the reinforcing portion 14 is formed on the base plate 11 that faces each column connecting portion 13. Of course, when it is desired that the finally formed lattice-shaped frame 100a has a honeycomb shape, the base plate 11 and the center box 12 may have triangular shapes.

After being assembled as one independent protective member 100 as described above, the protective member 100 is assembled.
“(4) Each protective member 100 is attached to the base plate 11
The anchor support cylinder 1 so that it is on the slope 200
5 is inserted into each anchor 40, and each pressure receiving plate 10 is fixed to each anchor 40, whereby the pressure receiving plate 10 is installed on the slope 200 ”.

That is, as shown in FIG. 20, each protection member 100 is hoisted by a machine, the anchor support cylinder 15 of each protection member 100 is inserted into each anchor 40, and after predetermined positioning, it is shown in FIG. The protection member 100 is temporarily fixed to the hanger pipe. In this case, each anchor 40 is cut so as to protrude by a predetermined length, and the tip of each anchor 40 is finally covered with a mounting cap as shown in FIG. It is what is done. Of course, if the slope 200 is so high that the protection member 100 cannot be lifted to the upper end of the slope 200 depending on the machine, each protection member 100 is hung from the upper end of the slope 200 and It goes without saying that the attachment to the anchor 40 is performed.

Protective member 1 attached to each anchor 40
00 is, as it were, one of the forms, and the grid-like frame 100.
Therefore, each column 20 constituting one protection member 100 is connected to the column 20 of another protection member 100 adjacent thereto, whereby each protection member 100. The arrangement / fixing on the slope 200 can be reliably performed in a more stable state. The protection members 100 are connected to each other by a connecting portion 24 provided at the tip of each column 20. The connecting portion 24 is
The connection hook 24a shown in FIG. 13 and the connection hole 24b shown in FIG. 14 are of two types, and particularly the connection hook 24a can be screwed forward and backward with respect to the column 20. Therefore, the pair of columns 20 that are adjacent to each other must have a connecting hook 24a on one side and a connecting hole 24b on the other side. This is because, when the above-mentioned ground is assembled, for example, the upper and lower columns 20 may be provided with the connecting hooks 24a, and the left and right columns 20 may be provided with the connecting holes 24b.

Therefore, in order to connect the protection members 100 to each other, for example, the connection hook 24 of one protection member 100 is used.
It is sufficient to engage a with the other connecting hole 24b and tighten the connecting hook 24a to the column 20 side. Even if each connecting hook 24a is not allowed to advance and retract with respect to the column 20, each connecting hook 24a
By adjusting the amount of advance / retreat with respect to the column 20, the tension between the protective members 100 as well as the connection between the protective members 100 can be freely adjusted.

Here, this protection method is applied to the flexible member 30.
In order to positively eliminate the unevenness between the pressure receiving plate 10 and the slope 200, the step (4) includes the step (4-2), that is, “ Each protection member 1
00 while the base plate 11 is on the slope 200 through the flexible member 30.
Inserting each anchor 40 ”and the step (4-
3), that is, "the cement liquid material or the foamable liquid material is injected into each flexible member 30 to eliminate the unevenness of the pressure receiving plate 10 with respect to the slope 200, and then each pressure receiving plate 10 is attached to each anchor 40. It should be divided into a step of "fixing and installing on each slope 200", and the construction state in that case is shown in FIG.

The flexible member 30 is the protective member 1 assembled in the ground.
00 is attached to the anchor 40, the protective member 100 is attached to the anchor 40 regardless of whether it is arranged between the slope 200 and the pressure receiving plate 10 or integrated in advance with the lower surface of the base plate 11 in step (1). , Slope 200
Since it is located between the pressure receiving plate 10 and the pressure receiving plate 10, by injecting the cement liquid material or the foaming liquid material into the flexible member 30, the cement liquid material, the foaming liquid material, or the foaming material is formed. The liquid material expands the flexible member 30 according to the surface shape of the slope 200. As a result, the void, that is, the non-planar portion, which has been present between the pressure receiving plate 10 and the slope 200 is eliminated, and when the cement liquid material or the foamable liquid material in the flexible member 30 is solidified, Which constitutes the base plate 11
The entire bottom surface presses on the corresponding slope 200. Of course, each flexible member 30
As shown by the phantom line in FIG. 12, it goes without saying that if the column 20 is extended to the entire lower portion, the unplanned portion between each column 20 and the slope 200 is eliminated. The “bottom surface” means that the pressure receiving plate 10 is a slope 200.
It is the surface that touches.

Needless to say, if it is considered that the slope 200 on which the anchor 40 is erected has sufficient flatness and that no unevenness occurs, it is necessary to adopt the above flexible member 30 at all. Needless to say, therefore, the step of injecting the cement liquid material or the foamable liquid material into the flexible member 30 is also omitted.

After the injection of the cement liquid material or the foamable liquid material into each flexible member 30 as described above, the protective member 100 temporarily fixed to the anchor 40 by that time is shown in FIG. As shown in FIG. 22, the main fixing is performed as in the anchor construction method which has been generally used conventionally. In this case, each protection member 100 has a slope 2
Further, it is further pressed against, for example, by a screwing force, and the cement liquid material or the foamable liquid material in the flexible member 30 below the protective member 100 is not yet solidified. Therefore, the pressure in the flexible member 30 is increased, and the cement liquid material or the foamable liquid material contained therein is still left in the pressure receiving plate 10 and the slope 2.
The flexible member 30 is caused to flow into the space between the two sides while expanding. As a result, the unevenness between the pressure receiving plate 10 and the slope 200 is almost completely eliminated.

On the other hand, the weight of each protection member 100 installed on the slope 200 is increased on the slope 200 to increase the pressing force of each protection member 100 against the slope 200 or to increase the strength of the protection member 100. When it is desired to further increase the amount, the protection member 100 according to claim 3 is adopted, and a cement liquid material or a foamable liquid material is introduced from the injection port 23 formed in one column 20 as shown in FIG. Inject things. In the rectangular center box 12 on the pressure receiving plate 10 side, as shown in FIG. 2, since the communicating portions 17 are formed inside the column connecting portions 13 formed on the respective side walls thereof, four connecting boxes 17 are formed. In the protection member 100 in which the columns 20 are assembled, the inside of the hollow portion 20 a of each column 20 is in communication with each other through each communication portion 17 of the center box 12. Therefore, if the cement liquid material or the foamable liquid material is injected from the injection port 23 of one column 20, the cement liquid material or the foamable liquid material is stored in the center box 12 and the columns 20 of the other columns 20. It will be filled.

In this case, the cement liquid material or the foamable liquid material is injected using only the injection port 23 of the column 20 which is the upper end, and the injection ports 23 of the other columns 20 are used as air holes. The injection of the cement liquid material or the foamable liquid material into the center box 12 and the other columns 20 is smoothly performed. Because the protective member 100 is originally arranged on the inclined slope 200, if the cement liquid material or the foamable liquid material is injected from the injection port 23 located at the top. By the power and fluidity of the cement liquid material or the foamable liquid material itself, the hollow portion 20 of another column 20 can be provided without applying much pressure to the cement liquid material or the foamable liquid material.
This is because it naturally flows into the inside of a.

Each of the injection ports 23 used as air holes also serves as a confirmation hole for confirming whether the cement liquid material or the foamable liquid material has been completely injected into the column 20.
That is, if the cement liquid material or the foamable liquid material is sufficiently injected into the hollow portion 20a of the column 20, the cement liquid material or the foamable liquid material overflows from the injection port 23 that is an air hole. After that, the injection port 23 may be closed with the plug 23a.

The injection of the cement liquid material or the foamable liquid material into the hollow portion 20a of the column 20 as described above is omitted if the strength of the protective member 100 itself is sufficient, and is not always necessary. This is the same as the case of the flexible member 30 described above.

Now, each protection member 100 is surely tensioned by the anchor 40 on the slope 200, and each protection member 10
When the connection of 0s is completed, as shown in FIG.
“(5) A finishing material 50 such as mortar or concrete is sprayed or applied onto each protective member 100 on the slope 200 to form a grid-shaped frame 100a covered with the finishing material 50 on the slope 200” Of. In this case, the spraying of the finishing material 50 is performed by each protection member 100.
Its main purpose is to prevent rusting and further immobilize it on the slope 200, but the protective material 100 is completely buried by the finishing material 50.

In carrying out this step (5),
When a mold made of wire mesh or the like is assembled around each protection member 100 and the finishing material 50 is sprayed into the mold, a grid frame 100a having higher strength is formed. This is the same as in the case of the conventional field spraying method frame construction method. Further, for each column 20, as shown in FIG. 13, FIG. 14 or FIG. 15, if a plurality of skirt plates 60 protruding outward are fixed, the finishing material 50 on which these skirt plates 60 are sprayed is fixed. Therefore, it is not necessary to install the above-mentioned wire mesh mold. Moreover, by using this skirt plate 60, it becomes possible to easily support the above-mentioned form, and the finishing material 5 that has been sprayed or the like.
It is possible to further enhance the effect of attaching 0 to the protective member 100, and it is possible to form the lattice-shaped frame 100a having high strength.

At the time of work such as spraying of the finishing material 50, as shown in FIG.
Since 6 exists, the finishing material 50 sprayed or the like passes through the through hole 26 to the opposite side. That is, the spraying work of the finishing material 50 is a heavy labor as shown in FIG. 24. The finishing material 50 naturally wraps around the protection member 100, and the through holes 26 also contribute to improving workability.

As shown in FIG. 10, the slopes 200 between the lattice-shaped frames 100a formed as described above are completely covered with a concrete plate having a wire mesh (lath) as a core material. In addition, a vegetation base material containing fertilizer or the like may be sprayed between the lattice-shaped frames 100a for vegetation to grow plants. That is, concrete or mortar may be sprayed or vegetation base material may be sprayed on the slopes 200 between the completed grid-shaped frames 100a. Since the lattice-shaped frame 100a firmly presses the slope 200 by the protection method using the protection member 100 of the invention, the slope 200 is sufficiently protected.

The specific embodiment of the protection method according to the present invention is as described above, and it will be described in more detail with reference to FIG.

In the protective construction method of the present invention shown in FIG. 16, the member to be each protective member 100 is formed in advance in step (12). Processing corresponding to the invention is made. That is, in order to obtain the protection member 100 according to claim 3, the communication box 17 is formed in the center box 12 on the pressure receiving plate 10 side, and the injection port 23 is formed in each column 20. When the protective member 100 is used, the flexible member 30 is prepared in this step (12), or the flexible member 30 is integrated with the lower surface of the base plate 11. This step (12) corresponds to the step (1) of each protection construction method according to the present invention.

Each protective member 1 prepared as described above
The members for 00 are transported and carried into a place where assembly at the construction site is easy, and in step (13), the pressure receiving plate 1
By connecting the columns 20 to the 0 side, the protection members 100 are independent from each other. This step
(13) corresponds to step (3) in each protection method of the present invention.

On the other hand, on the slope 200 to be vegetated and protected, in step (01), it is leveled by means such as excavation, and at the predetermined position, step (02)
The anchors 40 are driven in and the center pipe is built in each anchor 40 in step (03). These steps (01) ~ (03)
Corresponds to the step (2) of each protection method according to the present invention.

In this case, when the vegetation base material or the cement liquid material or the foamable liquid material is sprayed in the lattice-shaped frame 100a formed by the present invention in the step (10) or (11) described later. , To ensure the attachment of these things on the slope 200, step (1
In 5), a lath wire net is laid on the slope 200. The step (15) may be performed after the step (01) or (02), or may be omitted.

After the step (03), when the flexible member 30 for eliminating the unevenness is used as in the invention according to claim 4 or 6, in the step (16). The flexible member 30 is arranged between the base plate 11 on the protection member 100 side and the slope 200.
Of course, if the flexible member 30 is already attached to the lower surface of the base plate 11 in the step (12) or the use of the flexible member 30 is unnecessary, it goes without saying that the step (16) is omitted. Yes.

In the flexible member 30 attached in step (16), the cement liquid material or the foamable liquid material is injected in step (17). This step
(17) cement liquid material, or injection of foamable liquid material,
It does not necessarily have to be performed after step (16), that is, after step (03) shown in FIG. 16, for example, after step (05) described later or in parallel with step (06). Is also good. The above steps (16) and (17), and step (04) described later, are the steps (4-2) and (4-3) of the protection method according to claim 6.
It corresponds to.

Then, in step (04), each protection member 100 assembled in step (13) is installed on the slope 200 using each anchor 40, and this is attached to each anchor 40 in step (05). Tension, that is, fixing. These steps (04) and (05) are step (4) in each reinforcing portion 14 of the present invention. Between the steps (04) and (05), the protection members 100 may be connected as shown in the step (14). This step (14) is performed for each protection member 1 installed on the slope 200.
00 is not required when each is independent, and is selectively performed.

At step (06), the center box 12
And a liquid cement material in the hollow portion 20a of each column 20,
Alternatively, a foamable liquid material is injected, but if this is not necessary, this step (06) is omitted. This step (06) corresponds to the step (4-1) of the protection construction method according to claim 5.

At step (07), the finishing material 50 is sprayed on each pressure receiving plate 10 and the column 20.
In order to sufficiently attach the finishing material 50, the following is performed. That is, when each column 20 has a skirt plate 60, these skirt plates 60 are integrally provided in advance in step (12), and a mold is formed around each column 20. In this case, after step (05) or (06), a wire mesh is attached to each protective member 100 in step (18).

After the finishing material 50 has been sprayed onto each protective member 100 as described above, the ironing of the finishing material 50 in step (08) or the inside of the frame in step (09) is performed as necessary. The processing is done. As a result, the grid-like frame 1 for protecting the slope 200 is provided.
00a is completed.

If vegetation is to be carried out between the lattice-shaped frames 100a, the greening process of step (10) is performed, that is, the vegetation base material containing fertilizer and plant seeds is exposed between the lattice-shaped frames 100a. It is sprayed on the slope 200 that is formed or on the lath wire mesh laid on the slope 200. Lattice frame 100a
If it is desired to completely cover with concrete without vegetation in between, in step (11), the grid-shaped frame 10
The finishing material 50 is sprayed between 0a.

[0114]

As described in detail above, first, in the invention according to claim 1, as exemplified in the above embodiment,
"A base plate 11 arranged on a slope 200 such as a natural ground or a slope and having a plurality of pressing portions 11a, and an anchor 40 fixed to the slope 200 side, which is integrated with a substantially central upper surface of the base plate 11, is inserted. A sloped protection member 100 including an anchor support cylinder 15 that is fixed by fixing a reinforcing portion 14 to at least one pressing portion 11a of the base plate 11 and reinforcing the base plate 11 by the reinforcing portion 14. There is a feature in its construction, which allows the slope to be securely protected through an anchor fixed to the slope, and even if the slope is a steep slope, it can be easily protected. A slope protection member that can be installed can be provided with a simple configuration.

Further, in the invention according to claim 2, as exemplified in the above embodiment, "the slope 2 such as a ground or a slope is formed.
Pressure plate 10 fixed by anchor 40 on 00
And a plurality of columns 20 connected to the pressure receiving plate 10 for protecting the sloped surface 200 of the pressure receiving plate 1.
0 is the base plate 11 installed on the slope 200
And a hollow center box 12 fixed on the base plate 11, and the center box 12 inserts the column connecting portion 13 and the reinforcing portion 14 for each column 20 and the anchor 40. And an anchor support cylinder 15 for holding each column 2
The first and second mounting portions 21 connected to the column connecting portion 13 and the reinforcing portion 14 on the pressure receiving plate 10 side at the end portions of 0.
22 has been integrally formed ", which is a characteristic of its construction. This makes it possible to easily construct a steep slope without requiring a large mechanical force, and to protect the slope. It is possible to provide a sloped protection member that can have a sufficient bending strength and a sufficient strength against the bearing pressure when the anchor is tightened.

That is, the protection member 1 according to claim 2
According to No. 00, the pressure receiving plate 10 and the columns 20 are manufactured separately, so that the manufacturing itself becomes easy. Moreover, since the protection member 100 is divided, it can be easily stored and transported. That is, it is possible to easily carry the cargo to a site by loading it on a small truck with a relatively small crane. Since the center box 12 of the protection member 100 is hollow and each column 20 also has the hollow portion 20a, the constituent members of the protection member 100 are extremely lightweight. As a result, not only the storage and transportation described above, but also the assembly work itself at the construction site can be performed very easily. For example, the protection member 100 after assembly has about 60
Since the unit weight is 0 kg to 800 kg, the slope 200
As described above, it can be easily lifted by a relatively small lifting machine. (See Table 1)

Further, the protective member 100 uses the column connecting portion 13 and the reinforcing portion 14 provided on the pressure receiving plate 10 side with respect to the pressure receiving plate 10 to attach each column 20 to the first mounting portion 21 thereof. And the second mounting portion 22, the protection member 100 assembled as one independent member has the columns 20 firmly fixed to the pressure receiving plate 10 side, so that the protection member 100 as a whole has a very high rigidity. It can be expensive. As a result, even if the protection member 100 after assembly is hoisted on the slope 200 by using a relatively simple and small hoist, there is no problem such as collapse of the shape. Moreover, when the protective member 100 is installed on the slope 200, it is arranged on the slope 200 by the base plate 11, so that the base plate 11 having a sufficient area is said.
This makes it possible to reliably perform the pressing on the slope 200, and the base plate 11 also presses the pressing force transmitted to the pressure receiving plate 10 side via each column 20.
00 can be surely transmitted. Therefore,
This protection member 100 could be made extremely excellent in strength. What should be noted here is that the pressure receiving plate 10 can have various sizes and shapes in its design, but it has strength enough to withstand fastening of the anchor, for example, pressure resistance strength of 100 t or more. It is that you are. Therefore, the conventional joint (Fig. 30)
As shown, it will not be damaged when the anchor is tightened.

Of course, in the lattice-shaped frame 100a formed of a large number of protection members 100, the lattice spacing may need to be changed according to the situation of the construction site, but in that case, the length of each column 20 is different. It is good if you do not change. Further, when the lattice-shaped frame 100a has a honeycomb structure, it can be dealt with only by taking a means to make the shape of the center box 12 of the pressure receiving plate 10 triangular. In any case, this protection member 100 is
Since the construction can be made highly versatile by a simple coping method, it can be applied to the construction site under any condition in combination with the above-mentioned lightweight.

According to the protection member 100 of claim 3, the protection member 100 according to claim 2 further includes a cement liquid substance such as mortar or cement milk in the hollow portion 20a of each column 20. Alternatively, an injection port 23 for injecting the foamable liquid substance is formed in each column 20, and each column connection part 13 of the center box 12 is formed.
The communicating portion 17 is formed in the inner portion, and the cement liquid material or the foamable liquid material injected from the injection port 23 can be filled into the hollow portion 20a of each column 20 through each communicating portion 17. This is characterized in that it has the same effect as that of the protection member 100 according to the above-mentioned claim 2, and also the cement liquid substance in the center box 12 of the pressure receiving plate 10 and each column 20. ,
Alternatively, the foamable liquid material can be injected, whereby the weight of the entire protection member 100 after construction can be easily increased, and the strength of the entire protection member 100 can be easily increased. And, even when each constituent member of the protection member 100 is formed of a metal material,
Since the cement liquid material or the foamable liquid material can be protected from the inside and outside of the center box 12 and each column 20, the durability of the protection member 100 can be enhanced.

Further, according to the protection member 100 of the fourth aspect, in the protection member 100 of the second or second aspect, "the pressure receiving plate 10 is at least the base plate 1".
The base plate 11 is arranged on the bottom surface of the base plate 1 and is injected with a cement liquid material or a foamable liquid material.
The flexible member 30 that eliminates the unevenness on the slope 200 is provided ", which is a structural feature of the flexible member 30. The same effects as those of the above-described protection members 100 can be exhibited, and each protection Since the unevenness between the member 100 and the slope 200 can be completely eliminated, the slope 20 of each protection member 100 can be eliminated.
Therefore, it is possible to perform the installation on the zero position in a more stable state.

On the other hand, the protection method according to claim 5 is, as exemplified in the above embodiment, "a protection method for the slope 200 such as a ground or a slope including the following steps. (1) On the slope 200 Base plate 11 to be installed
And each column 2 fixed on this base plate 11
A pressure receiving plate 10 including a column connecting portion 13 for 0, a reinforcing portion 14, and a hollow center box 12 having an anchor support cylinder 15 for inserting an anchor 40, and a pressure receiving plate 10 at an end portion. Side first column connecting portion 13 and reinforcing portion 14 are respectively connected to the first and second mounting portions 21.
The step of preliminarily forming a plurality of hollow columns 20 in which 22 are integrally formed; Step (3) Column connecting portion 13 and reinforcing portion 14 of each pressure receiving plate 10
(4) Each protective member 100 is formed by connecting the first and second attachment portions 21 and 22 of each column 20 to form the protective member 100 including each pressure plate 10 and column 20 in advance. While each base plate 11 is on the slope 200, each anchor support cylinder 15
Is inserted into each anchor 40, and each pressure receiving plate 10 is fixed to each anchor 40 to be installed on the slope 200; (5) Each protection member 100 on this slope 200 is made of mortar, concrete, or the like. Of the finish 50 being sprayed or painted onto the slope 200 and covered with the finish 50. "is characterized by its construction, which allows it to be used in rugged rock formations without requiring so much mechanical force. Therefore, it is possible to provide a slope protection method that can be easily applied to even slopes and that has sufficient strength to protect slopes.

According to the protection construction method of claim 6,
Regarding the protection method according to claim 5, further, “between the step (4) and the step (5), (4-1) each column 20
A cement liquid material such as mortar and cement milk or a foamable liquid material is injected into the hollow portion 20a from the injection port 23 formed in the center box 12 and each column connection portion 13 thereof. The step of filling the hollow portion 20a of each of the other columns 20 with the cement liquid material or the foamable liquid material through the respective communicating portions 17 formed in the part. "
In addition to being able to exhibit the same effect as in claim 5,
Rust prevention of each center box 12 and column 20 and increase in weight can be easily achieved, and the protection member 10 after the construction is completed.
The strength of 0 can be made more sufficient.

According to the protection method according to claim 7, in the protection method according to claim 5, "in the step (1), the cement liquid material or the foamable liquid material should be injected. A flexible member that has an inlet and is to be arranged at least on the bottom surface side of each of the base plates is also prepared, and the step (4), (4-2) each of the protection members, and each of the base plates are (4-3) inserting the anchors into the anchor support cylinders so as to be on the slopes via the flexible members;
After injecting the cement liquid material or the foamable liquid material into each of the flexible members and eliminating the unevenness between the pressure receiving plate and the slope, the pressure receiving plates are each anchors. The step of installing on the slope by fixing it is characterized by its constitution. With this, the same effect as the protection construction method according to claims 5 and 5 can be exhibited. Therefore, it is possible to completely prevent unevenness between the protection member 100 and the slope 200 and sufficiently protect the slope 200.

[Brief description of drawings]

FIG. 1 is an enlarged plan view of a protection member according to the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is an enlarged plan view of another protection member according to the present invention.

FIG. 4 is a vertical cross-sectional view showing the same protective member, in which (a) has a linear reinforcing portion and (b) has a reinforcing portion having an abutting portion formed at an inner end thereof.

5 is a partial plan view of an inclined surface when protection is performed by using the protection member shown in FIG.

FIG. 6 is a sectional view of a slope when the protection member shown in FIG. 3 is applied.

7 is an enlarged front view when a column is connected to the protection member of FIG.

FIG. 8 is an enlarged cross-sectional view of a column illustrating the shape of a column having a hollow portion.

FIG. 9 is an enlarged cross-sectional view illustrating an inverted U-shaped column.

FIG. 10 is a partial plan view showing a state in which a lattice-shaped frame is formed on an inclined surface by adopting the protective member and protective method according to the present invention.

FIG. 11 is a partial cross-sectional view showing a state in which the protection member according to the present invention is installed on a slope.

FIG. 12 is a front view showing a state where one column is connected to the pressure receiving plate.

FIG. 13 is a view showing a column having a connecting hook at an outer end thereof, (a) is a front view, (b) is a plan view, and (c) is a side view seen from the first mounting portion side.

FIG. 14 is a view showing a column having a connecting hole at an outer end thereof, (a) is a front view and (b) is a plan view.

FIG. 15 is a side view and (b) is a front view showing a skirt plate for favorably attaching a finishing material.

FIG. 16 is a flowchart showing an example of a protection method according to the present invention.

FIG. 17 is a schematic cross-sectional view showing a partial process of the protection method according to the present invention, in which excavation on a slope is performed.

FIG. 18 is a schematic cross-sectional view showing a state in which an anchor is erected by making a hole in a slope with a percussion drill.

19 is a schematic cross-sectional view showing a state in which a hanger pipe is attached to the anchor erected in FIG.

FIG. 20 is a schematic cross-sectional view showing a state in which the assembled protection member is attached to an anchor that is erected on a slope.

FIG. 21 is an anchor support cylinder showing a state in which a cement liquid material or a foamable liquid material is injected into the flexible member when the flexible member is interposed between the protective member and the slope. Is.

FIG. 22 shows a state in which each protection member is fixed to the anchor on the slope.

FIG. 23 is a schematic cross-sectional view showing a state where a cement liquid material or a foamable liquid material is injected into each center box and column.

FIG. 24 is a schematic cross-sectional view showing a state in which a finishing material is sprayed onto each protection member.

FIG. 25 is a partial perspective view for explaining a conventional on-site spraying method frame construction method.

FIG. 26 is a partial perspective view illustrating one configuration order of the formwork in the on-site spraying method frame construction method.

FIG. 27 is a partial perspective view illustrating another configuration order in the field spraying method frame construction method.

FIG. 28 is a cross-sectional view of a retaining wall that has been conventionally used to protect a slope.

29 is a partial plan view showing an intersection portion of the retaining wall of FIG. 28. FIG.

30 is a perspective view of the joint shown at the intersection of FIG. 29. FIG.

FIG. 31 is an enlarged plan view of the intersection.

FIG. 32 shows a beam used in the retaining wall of FIG. 28, (a) being a side view and (b) being a front view.

[Explanation of symbols]

 100 Protective Member 100a Lattice Frame 10 Base Plate 11a Base Plate 11a Pressing Part 12 Center Box 13 Column Connecting Part 13a Screwing Hole 14 Reinforcing Part 14a Mounting Hole 14b Through Hole 15 Anchor Support Cylinder 16 Notch 17 Communicating Part 20 Column 20a Hollow Part 21 1st attachment part 21a Attachment hole 22 2nd attachment part 22a Attachment hole 23 Injection port 23a Plug 24 Connection part 24a Connection hook 24b Connection hole 30 Flexible member 40 Anchor 50 Finishing material 60 Skirt plate 200 Slope

Claims (7)

[Claims] 1. A base plate having a plurality of pressing portions arranged on a slope such as a natural ground or a slope, and an anchor fixed to the slope, which is integrated with a substantially central upper surface of the base plate. A sloped protection member including an anchor support cylinder to be fixed, wherein a reinforcing portion is integrated on at least one pressing portion of the base plate, and the reinforcing portion is used to reinforce the base plate. Slope protection member. 2. A slope protecting member comprising a pressure receiving plate fixed on an inclined surface such as a natural ground or a slope by an anchor, and a plurality of columns connected to the pressure receiving plate, wherein the pressure receiving plate comprises: It is composed of a base plate installed on the slope and a hollow center box fixed on the base plate, and the center box includes a column connecting portion and a reinforcing portion for each column, and the anchor. And an anchor support cylinder for inserting the first and second attachment portions, which are respectively connected to the column connection portion and the reinforcement portion on the pressure receiving plate side, integrally with the end portion of each column. A slope protection member characterized by being formed. 3. An injection port for injecting a cement liquid material such as mortar or cement milk or a foamable liquid material in each column is formed at least at one position in each column, and at the same time the center box is provided. A communication part is formed in a portion to be in each column connection part, and the cement liquid material injected from the injection port is configured to be filled in the hollow part of each column through the communication part. The protective member according to claim 2. 4. The pressure receiving plate is disposed at least on the bottom surface of the base plate, and by injecting the cement liquid material or the foamable liquid material, it is possible to eliminate unevenness on the slope of the base plate. The protective member according to claim 2 or 3, further comprising a flexible member. 5. A method for protecting a slope such as a natural ground or a slope including the following steps. (1) A hollow shape having a base plate installed on the inclined surface, a column connecting portion and a reinforcing portion fixed to the base plate for each of the columns, and the anchor support cylinder for inserting the anchor. A plurality of hollow columns integrally formed with a pressure receiving plate constituted by a center box and first and second mounting portions respectively connected to the column connecting portion and the reinforcing portion on the pressure receiving plate side at the ends thereof. And (2) a step of standing a plurality of anchors at predetermined positions on the slope that has been subjected to a predetermined pretreatment such as leveling; (3) a column connecting portion and reinforcement of each pressure receiving plate. By connecting the first and second mounting portions of each column to the section,
A step of previously forming a protective member composed of each of the pressure receiving plates and columns; (4) in each of the protective members, each of the anchor support cylinders is inserted into each of the anchors while each of the base plates is on a slope. The step of installing on the slope by fixing each pressure plate with each anchor; (5) Each protective member on this slope is sprayed or painted with a finishing material such as mortar or concrete. And forming a grid-like frame covered with the finishing material on the slope. 6. Between the step (4) and the step (5), (4-1) a cement liquid material such as mortar or cement milk is introduced from the inlet formed in each of the columns into the hollow portion thereof. Or, by injecting a foamable liquid material, through each communication part formed in the center box and its respective column connection part, the cement liquid material or the foamable liquid material of the other each of the columns. The method for protecting a slope according to claim 5, further comprising: a step of filling the hollow portion. 7. In the step (1), there is also prepared a flexible member having an injection port through which the cement liquid material is injected, and at least arranged on the bottom surface side of each of the base plates. The step (4), (4-2) the respective anchors are inserted into the respective anchor support cylinders while the respective base plates are on the slopes through the respective flexible members through the respective protection members. (4-3) The cement liquid material in each of the flexible members,
Or a step of injecting a foamable liquid material to eliminate unevenness between the pressure receiving plates and the slopes, and then installing the pressure receiving plates on the slopes by fixing the pressure receiving plates with the anchors. 7. The slope protection method according to claim 5 or 6, wherein