Coating material fixing device and coating material fixing method

Abstract

To provide a covering material fixing device capable of fixing a covering material spread by using a drainage structure buried in a slope to the slope by a simple means.SOLUTION: The coating material fixing device 10 includes a fixing means 12 and a pulling means 20. The fixing means 12 fixes one end 34 of the covering material 30 spread on the slope A to a predetermined position of the slope A. The pulling means 20 pulls the other end 35 of the covering material 30 whose one end 34 is fixed by the fixing means 12 to generate tensile stress S in the covering material 30. The tension means 20 holds the coating material 30 in a state where tensile stress S is generated in the coating material 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a coating material fixing device and a coating material fixing method for fixing a coating material to a sloped surface. [Background technology]

[0002] BACKGROUND ART Conventionally, construction work has been carried out to cover slopes such as river embankments and road edges with synthetic resin covering materials such as blue tarps as covering materials for protecting the slopes.

[0003] Since such slope construction work involves work on an inclined surface, it is not easy to carry and spread the covering material. For this reason, a technique is known in which the covering material is pulled up onto the slope by a rope from a movable cart carrying the wound covering material and spread it out (Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 59-112846 [Patent Document 2] Japanese Patent Application Publication No. 9-59991 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the typical method of fixing synthetic resin covering material to a slope in a stretched state is to place multiple sandbags on top of the covering material, and the work of filling the bags with soil and carrying heavy sandbags at a site with unstable footing is inefficient.

[0006] Therefore, the present invention provides a coating material fixing device and a coating material fixing method that can fix a stretched coating material to a slope by simple means using a drainage structure buried in the slope. [Means for solving the problem]

[0007] The present invention has been made to solve at least some of the above-mentioned problems, and can be realized as the following aspects or application examples.

[0008] [1] One aspect of the dressing fixing device according to the present invention is a fixing means for fixing one end of the covering material stretched on the slope to a predetermined position on the slope; a tensioning means for tensioning the other end of the covering material, the other end of which is fixed by the fixing means, to generate a tensile stress in the covering material; Equipped with The tensioning means is characterized by maintaining the covering material in a state in which the tensile stress is generated.

[0009] [2] In one embodiment of the above-mentioned dressing fixing device, the fixing means includes a first movement limiting portion that contacts a first drainage structure buried in a position where the one end of the covering material is fixed and limits movement of the fixing means; The tensioning means may include a second movement limiting portion that contacts a second drainage structure buried in a position where the other end of the covering material is fixed and limits the movement of the tensioning means.

[0010] [3] In one embodiment of the above-mentioned coating material fixing device, Further provided is a pressing means for pressing the covering material onto the ground from above, The pressing means contacts the first drainage structure or the second drainage structure to press the A third movement limiting portion that limits the movement of the means for moving the device can be provided.

[0011] [4] In one embodiment of the above-mentioned coating material fixing device, A plurality of fixing means are provided for one sheet of the covering material, Each of the plurality of fixing means includes a support post extending upward; The structure may further include a life rope stretched between the plurality of support poles.

[0012] [5] One aspect of the method for fixing a dressing material according to the present invention is to installing a fastening means within a first drainage structure buried adjacent to the slope; a tensioning means is installed in a second drainage structure buried in a position opposite to the first drainage structure across the slope; one end of the covering material stretched on the slope surface is fixed to the fixing means; The other end of the covering material, the one end of which is fixed, is pulled to generate tensile stress in the covering material and hold it in that state.

[0013] [6] In one embodiment of the above-mentioned method for fixing a coating material, a holding means is installed on the first drainage structure or the second drainage structure; The covering material in the state where the tensile stress is generated can be pressed down onto the ground from above by the pressing means. [Effects of the Invention]

[0014] According to the coating material fixing device and coating material fixing method of the present invention, the stretched coating material can be fixed to the slope by simple means. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view schematically showing a dressing fixing device according to an embodiment of the present invention. [Figure 2] FIG. 3 is an enlarged side view showing the fixing means of the dressing fixing device. [Figure 3] FIG. 2 is an enlarged side view of the tensioning means of the dressing fixing device. [Figure 4] FIG. 4 is an enlarged side view showing a pressing means of the dressing fixing device. DETAILED DESCRIPTION OF THE INVENTION

[0016] Preferred embodiments of the present invention will be described in detail below with reference to the drawings. Note that the embodiments described below do not unduly limit the content of the present invention as defined in the claims. Furthermore, not all of the configurations described below are necessarily essential components of the present invention.

[0017] 1. Covering material fixing device An overview of a dressing fixing device 10 according to this embodiment will be described with reference to Fig. 1. Fig. 1 is a perspective view that schematically shows the dressing fixing device 10 according to this embodiment.

[0018] The dressing fixing device 10 includes a fixing means 12 and a tensioning means 20. The dressing fixing device 10 may further include a pressing means 40.

[0019] The fixing means 12 is configured to fix one end 34 of the covering material 30 stretched on the slope A to a predetermined position on the slope A. The fixing means 12 is installed on the first drainage structure 71, for example.

[0020] The tensioning means 20 is configured to pull one end 35 of the covering material 30, the other end 34 of which is fixed by the fixing means 12, to generate a tensile stress S (illustrated by an arrow on the covering material 30 in FIG. 1 ) in the covering material 30. The tensioning means 20 is configured to maintain the covering material 30 in a state in which the tensile stress S is generated. The tensioning means 20 is installed, for example, on the second drainage structure 72.

[0021] The covering material fixing device 10 allows the stretched covering material 30 to be fixed to the slope A by simple means, thereby reducing the amount of work required for sandbags, for example. In particular, the covering material fixing device 10 can hold the covering material 30 in a state where tensile stress S is generated, making it able to withstand wind.

[0022] The holding down means 40 is configured to, for example, press down the covering material 30 onto the ground from above. The holding down means 40 is installed, for example, on the second drainage structure 72. The holding down means 40 is preferably installed in a location where there is a large gap between the ground and the covering material 30.

[0023] In this embodiment, the first drainage structure 71 is buried in the upper part of the slope A, and the second drainage structure 72 is buried in the lower part of the slope A so as to extend along the horizontal direction of the slope A, but the buried positions are not limited to this example. The first drainage structure 71 and the second drainage structure 72 may be in interchanged positions, or may be buried so as to extend along the vertical direction of the slope A. The first drainage structure 71 and the second drainage structure 72 are buried in positions facing each other across the construction area where the extended covering material 30 is fixed. The first drainage structure 71 and the second drainage structure 72 are structures that form at least a part of a waterway. In this embodiment, an example will be described in which the first drainage structure 71 and the second drainage structure 72 are U-shaped ditches, but this is not limited to U-shaped ditches. The first drainage structure 71 and the second drainage structure 72 may have a cover placed over the waterway. The first drainage structure 71 and the second drainage structure 72 may be any structure capable of forming a trench having a side wall on the ground surface. The first drainage structure 71 and the second drainage structure 72 are made of, for example, precast reinforced concrete or synthetic resin.

[0024] The covering material 30 can be in the form of a sheet or net, and is preferably flexible and deformable for ease of installation. The material of the covering material 30 is not limited, but natural materials, synthetic resins, metals, and the like can be used. Examples of natural materials include natural fibers such as cotton, linen, and silk. Examples of synthetic resins include polypropylene (PP), polyethylene (PE), polyester (PEs), and polyvinyl chloride (PVC). Examples of metals include iron, stainless steel, aluminum, and copper. The covering material 30 may also be a composite of different materials. For example, a weather-resistant material is preferably used to protect the slope A for a long period of time. For example, the surface of the covering material 30 may be coated with a weather-resistant material. If the covering material 30 is in the form of an impermeable sheet, such as a so-called blue tarp made primarily of polyethylene, it is relatively inexpensive, highly versatile, and can protect the slope A from rainwater. If the covering material 30 is in the form of a water-permeable sheet, such as a long-fiber nonwoven fabric, it can be used to reinforce the slope A and for slopes A that require drainage. Furthermore, if the covering material 30 is in the form of a net, it can be used, for example, for treating the surface of soft ground or as a rockfall prevention net.

[0025] Slope A is an inclined surface, and includes, for example, artificial slopes created by embankment or cutting for road or housing development, natural slopes such as mountains, and the sides of river levees and revetments. Slope A is covered and protected by covering material 30 to prevent rainwater infiltration and damage to slope A. The upper part of slope A is located above the portion covered by covering material 30 and preferably has a flat surface with a low incline that makes it easy for workers to work. The lower part of slope A is located below the portion covered by covering material 30 and preferably has a flat surface on which a covering material deployment device (not shown) can be installed. Since first drainage structures 71 and second drainage structures 72, such as U-shaped gutters, are often buried at the upper and / or lower parts of slope A, as in this embodiment, the first drainage structures 71 and second drainage structures 72 can be used to install the fixing means 12 and the tensioning means 20. The first drainage structure 71 at the top of the slope A prevents rainwater from flowing onto the slope A, and the second drainage structure 72 at the bottom of the slope A drains the rainwater that has flowed down the slope A.

[0026] 1.1. Fixing means An example of the fixing means 12 will be described in detail using Figures 1 and 2. Figure 2 is an enlarged side view of the fixing means 12 of the covering material fixing device 10 described in Figure 1. Slope A is on the right side of Figure 2, and the covering material 30 extends along slope A to the lower right of Figure 2.

[0027] The fixing means 12 can include a first movement limiting portion 13 for setting the fixing means 12 at a predetermined position, and a fixing portion 14 for fixing the covering material 30 to the fixing means 12. The first movement limiting portion 13 and the fixing portion 14 are integrally formed.

[0028] The first movement limiting portion 13 can contact a first drainage structure 71 buried in a position where one end 34 of the covering material 30 is fixed, thereby limiting the movement of the fixing means 12. The first movement limiting portion 13 is disposed inside the first drainage structure 71.

[0029] Here, the first drainage structure 71 has a shape that forms part of a waterway when buried in the ground. For the sake of explanation, the first drainage structure 71 is shown extracted at the bottom of Figure 2. The side wall of the first drainage structure 71 in Figure 2 has a front surface 71a on the slope A side and a rear surface 71b opposite the front surface 71a. The space between the front surface 71a and the rear surface 71b is used as a waterway. The first drainage structure 71 may further have a bottom surface 71c that connects the front surface 71a and the rear surface 71b.

[0030] The first movement limiting portion 13 includes a front contact portion 13a that contacts the front surface 71a of the first drainage structure 71 and a rear contact portion 13b that contacts the rear surface 71b. The front contact portion 13a and the rear contact portion 13b contact the first drainage structure 71 at the front and rear, thereby limiting the movement of the fixing means 12 that holds the cladding material 30 even if the cladding material 30 is pulled toward the slope A. In particular, the front contact portion 13a and the rear contact portion 13b can limit the movement of the first movement limiting portion 13 from slipping out of the first drainage structure 71. The first movement limiting portion 13 may further include a lower contact portion 13c that contacts the bottom surface 71c. The lower contact portion 13c can limit the rotational movement of the first movement limiting portion 13 within the first drainage structure 71. The front contact portion 13a, the rear contact portion 13b, and the lower contact portion 13c are provided to protrude from an inverted L-shaped metal main body. The front contact portion 13a, the rear contact portion 13b, and the lower contact portion 13c are preferably made of an elastic material such as rubber, since this increases the coefficient of friction. There may be multiple front contact portions 13a, multiple rear contact portions 13b, and multiple lower contact portions 13c.

[0031] The fixing part 14 is provided at a position higher than the first drainage structure 71. Since the fixing part 14 is located at a position higher than the first drainage structure 71, it is easy for workers to fix the covering material 30 to the fixing part 14. The fixing part 14 is configured to extend from the first drainage structure 71 toward the slope A. The fixing part 14 only needs to be able to fix one end 34 of the covering material 30 in a predetermined position, and may be configured to directly hold the one end 34 without using a fixing rod 32.

[0032] The fixing portion 14 includes, for example, a fixing groove 14a and a retaining portion 14b. The fixing groove 14a is a groove that receives the fixing rod 32 around which one end 34 of the covering material 30 is wound. The fixing rod 32 is a cylindrical member with a length substantially equal to the width of the covering material 30, and may be, for example, a single pipe. The fixing groove 14a restricts the fixing rod 32, which is located within the groove, from moving toward the slope A. The retaining portion 14b is a member that prevents the fixing rod 32 from slipping out of the fixing groove 14a. The retaining portion 14b is positioned above the fixing groove 14a so as to abut against the upper surface of the fixing rod 32. The retaining portion 14b retracts from above the fixing rod 32 by tilting the lever, and moves above the fixing rod 32 by returning the lever.

[0033] 1, multiple fixing means 12, for example, two, can be provided for one covering material 30. One end 34 of the covering material 30 is wrapped around a fixing rod 32 extending laterally of the slope A, and is fixed to the fixing rod 32 with, for example, a commercially available clip for single pipes. For example, two fixing means 12 are arranged near both ends of the fixing rod 32. Preferably, each of the multiple fixing means 12 is provided with a support pillar 50 extending upward. The support pillar 50 has a height of, for example, 90 cm or more above the top surface of the first drainage structure 71. The covering material fixing device 10 can further include a life rope 60 that is stretched between the multiple support pillars 50. By providing the life rope 60 to the fixing means 12, it is possible to hook the safety belt of a worker working on the slope A. This eliminates the need to construct a separate scaffolding for the life rope 60 on the slope A.

[0034] 1.2.Tensioning means An example of the tensioning means 20 will be described in detail using Figures 1 and 3. Figure 3 is an enlarged side view showing the tensioning means 20 of the coating material fixing device 10 described in Figure 1. Slope A is on the left side of Figure 3, and the coating material 30 extends along slope A toward the upper left of Figure 3.

[0035] The tensioning means 20 can include a second movement limiting portion 22 for setting the tensioning means 20 at a predetermined position, and a tensioning portion 24 for tensioning and holding the covering material 30 on the tensioning means 20. The second movement limiting portion 22 and the tensioning portion 24 are integrally formed.

[0036] The second movement limiting portion 22 can contact a second drainage structure 72 embedded in a position where the other end 35 of the covering material 30 is fixed, thereby limiting the movement of the tensioning means 20. The second movement limiting portion 22 is disposed inside the second drainage structure 72.

[0037] Here, the second drainage structure 72 has a shape that forms part of a waterway when buried in the ground. For the sake of explanation, the second drainage structure 72 is shown extracted at the bottom of Figure 3. The side wall of the second drainage structure 72 in Figure 3 has a front surface 72a on the slope A side and a rear surface 72b opposite the front surface 72a. A waterway is formed between the front surface 72a and the rear surface 72b. The second drainage structure 72 may further have a bottom surface 72c that connects the front surface 72a and the rear surface 72b.

[0038] The second movement limiting portion 22 includes a front contact portion 22a that contacts the front surface 72a of the second drainage structure 72 and a rear contact portion 22b that contacts the rear surface 72b. The front contact portion 22a and the rear contact portion 22b contact the second drainage structure 72 at the front and rear, thereby limiting the movement of the tensioning means 20 holding the covering material 30 even if the covering material 30 is pulled toward the slope A. The second movement limiting portion 22 may further include a lower contact portion 22c that contacts the bottom surface 72c. The lower contact portion 22c limits the rotational movement of the second movement limiting portion 22 inside the second drainage structure 72. The front contact portion 22a, the rear contact portion 22b, and the lower contact portion 22c are provided to protrude from an L-shaped metal main body. The front contact portion 22a, the rear contact portion 22b, and the lower contact portion 22c are preferably made of an elastic material, such as rubber, to increase the coefficient of friction. There may be a plurality of front contact portions 22a, rear contact portions 22b, and lower contact portions 22c.

[0039] The tensioning unit 24 is located between the covering material 30 and the second movement limiting unit 22 and functions to shorten the distance between the covering material 30 and the second movement limiting unit 22. An example of the tensioning unit 24 in FIG. 3 is a so-called belt fastener including belts 24a and 24c and a ratchet buckle 24b. The other end 35 of the covering material 30 is wound around a fixed rod 33, for example, and secured to the fixed rod 33 with, for example, a clip for a single pipe. One end of the belt 24a is secured to the fixed rod 33, and the other end can be wound around the ratchet buckle 24b. The belt 24c secures the ratchet buckle 24b to the second movement limiting unit 22. By moving the handle of the ratchet buckle 24b back and forth, for example, the belt 24a can be wound around a reel and the fixed rod 33 can be moved toward the second movement limiting unit 22. By moving the other end 35 of the fixed rod 33 toward the second movement limiting portion 22, a tensile stress S (FIG. 1) can be generated inside the covering material 30, one end 34 of which is fixed to the fixing means 12. The tensioning portion 24 is not limited to a belt fastener, but may be configured to wind up a wire or string, and may be operated manually or electrically. stomach.

[0040] A plurality of tension means 20 may be provided along the other end 35. In the example of FIG.

[0041] With the covering material securing device 10, the securing means 12 and tensioning means 20 are simply installed on the drainage structure to hold the covering material 30, eliminating or reducing the need for the conventional work of filling sandbags with earth and transporting the sandbags. Using the covering material securing device 10 improves work efficiency and worker safety.

[0042] 1.3. Holding means An example of the pressing means 40 will be described in detail with reference to Figures 1 and 4. Figure 4 is an enlarged side view showing the pressing means 40 of the dressing fixing device 10 described in Figure 1.

[0043] The holding means 40 can be installed at the bottom of the slope A. A gap occurs between the covering material 30 and the ground due to the distance between the bottom end of the slope A and the tensioning means 20 (Figure 3), so this gap can be reduced by installing the holding means 40 at the bottom of the slope A. If the gap between the covering material 30 and the ground becomes large, the covering material 30 will be more likely to lift up when hit by the wind, so it is preferable to reduce this gap using the holding means 40.

[0044] The pressing means 40 includes, for example, a pressing portion 44 and a third movement limiting portion 42. The pressing portion 44 and the third movement limiting portion 42 are integrally formed via a belt 44c, which will be described later.

[0045] 1 and 4 includes three third movement limiting sections 42 installed in the second drainage structure 72 and three holding sections 44 connected by a pipe 44b along the fixed rod 33. The holding sections 40 may be independent of each other without being connected.

[0046] The third movement limiting portion 42 is configured to contact the first drainage structure 71 or the second drainage structure 72 to limit the movement of the holding means 40. In this embodiment, the second drainage structure 72 is located at the bottom of the slope A, so an example will be described in which the third movement limiting portion 42 contacts the second drainage structure 72 to limit the movement of the holding means 40.

[0047] The third movement limiting section 42 is installed within the second drainage structure 72. The third movement limiting section 42 includes a first member 42c to which one end of the belt 44c is fixed, and a second member 42d (shown shaded in FIG. 4) having multiple contact portions. The first member 42c is a plate-shaped member with an end surface that widens downward. Both end surfaces of the first member 42c are inclined surfaces, and two second members 42d are provided so as to be slidable along both end surfaces. The second member 42d on the slope A side includes, for example, multiple front contact portions 42a that contact the front surface 72a of the second drainage structure 72. The second member 42d on the opposite side from slope A includes, for example, multiple rear contact portions 42b that contact the rear surface 72b of the second drainage structure 72. When the first member 42c moves upward by the belt 44c, the second member 42d is pushed by both end surfaces and moves toward the front surface 72a and the rear surface 72b, increasing the frictional force between each contact portion and the front surface 72a and the rear surface 72b, thereby restricting the movement of the pressing means 40. The third movement restricting portion 42 may have another configuration as long as it prevents the pressing means 40 from coming off the second drainage structure 72.

[0048] The holding part 44 comprises a mounting part 44e that is placed on the second drainage structure 72, an arm part 44a that is placed on the mounting part 44e, a pipe 44b at the tip of the arm part 44a, a ratchet buckle 44d attached to the arm part 44a, and a belt 44c that extends from the ratchet buckle 44d. The mounting part 44e has a protrusion on its lower surface that contacts the front surface 72a and the rear surface 72b, and is placed on the upper surface of the second drainage structure 72. The upper surface of the mounting part 44e has two protrusions The rear end of the arm portion 44a comes into contact with one of the protrusions, restricting the movement of the arm portion 44a in a direction away from the slope A. The arm portion 44a is a metal plate bent in a mountain shape, and a ratchet buckle 44d is attached near the top of the arm portion 44a. The arm portion 44a extends toward the slope A so that the pipe 44b at its tip is positioned closer to the slope A than the fixed rod 32. The pipe 44b is a metal pipe fixed to the tip of the arm portion 44a. The pipe 44b may have a length approximately equal to the width of the covering material 30. The pipe 44b is not limited to a cylindrical shape as long as it can hold down the covering material 30 from above. The belt 44c extends downward, and its lower end is fixed to the first member 42c of the third movement-restricting portion 42, and its upper end can be wound around the ratchet buckle 44d. By moving the handle of the ratchet buckle 44d back and forth, for example, the belt 44c can be wound onto the reel, the first member 42c can be slightly pulled up, and the arm 44a can be moved downward. When the arm 44a moves downward, the pipe 44b can press the covering material 30 against the ground from above. The ratchet buckle 44d is not limited to a belt fastener as in this embodiment, but may also be configured to wind up a wire or string, and may be manual or electrically operated.

[0049] After the curing period for slope A is over, the covering material fixing device 10 can be removed from the first drainage structure 71 and the second drainage structure 72 and used at another construction site. The covering material fixing device 10 is an environmentally friendly design that does not require the work of removing soil and sand or disposing of the bags, as is the case with conventional sandbags.

[0050] 2. How to fix the coating material The covering material fixing method according to this embodiment will be described using Figures 1 to 4. In the following explanation, a method using the above-mentioned covering material fixing device 10 will be described, but the present invention is not limited to this. Furthermore, prior to the covering material fixing method, the covering material 30 is assumed to be stretched over the slope A, with one end 34 of the covering material 30 wrapped around a fixing rod 32 and secured with, for example, a commercially available clip, and the other end 35 wrapped around a fixing rod 33 and secured with a clip, for example.

[0051] The method for fixing the covering material involves installing a fixing means 12 in a first drainage structure 71 buried adjacent to the slope A, installing a tensioning means 20 in a second drainage structure 72 buried in a position opposite the first drainage structure 71 across the slope A, fixing one end 34 of the covering material 30 stretched across the slope A to the fixing means 12, and pulling the other end 35 of the covering material 30 with the one end 34 fixed to it, thereby generating a tensile stress S in the covering material 30 and holding it in that state.

[0052] The fixing means 12 can be installed by inserting the first movement restriction part 13 into the groove so that each contact part (13a, 13b, 13c) contacts the inner wall surface of the first drainage structure 71. Once the fixing means 12 is installed, the fixing part 14 is positioned on the slope A side of the first drainage structure 71. Then, the fixing rod 32 to which one end 34 of the covering material 30 is fixed is inserted into the fixing groove 14a of the fixing part 14, and the retaining part 14b is lowered from above the fixing rod 32. This ensures that one end 34 of the covering material 30 is securely fixed to the fixing means 12.

[0053] Furthermore, a worker performing work at the fixing means 12 can safely perform the work while wearing a safety belt hooked onto a life rope 60 stretched across a support 50 extending from the fixing means 12.

[0054] The tensioning means 20 can be installed by inserting the second movement restricting part 22 into the groove so that each contact part (22a, 22b, 22c) comes into contact with the inner wall surface of the second drainage structure 72. Once the tensioning means 20 is installed, the tensioning part 24 is positioned on the slope A side of the second drainage structure 72. The tip of the belt 24a of the tensioning part 24 is fixed to the fixed rod 33 to which the other end 35 of the covering material 30 is fixed. By operating the ratchet buckle 24b of the tensioning part 24, the belt 24a is wound around the ratchet buckle 24b and the other end 35 moves towards the second drainage structure 72. The ratchet buckle 24b is operated until a predetermined tensile stress S is generated in the covering material 30. , and holds the covering material 30 in a state in which the tensile stress S is generated. In this way, the covering material fixing device 10 can fix the covering material 30 in a state in which the tensile stress S is generated at a predetermined position relative to the slope A.

[0055] According to the covering material fixing method, the stretched covering material 30 can be fixed to the slope A by simple means, thereby reducing the work required for sandbags. In particular, according to the covering material fixing method, the covering material 30 can be maintained in a state where a tensile stress S is generated, making it possible to withstand wind.

[0056] Furthermore, a pressing means 40 may be installed on the first drainage structure 71 or the second drainage structure 72. In this embodiment, by installing the pressing means 40 on the second drainage structure 72, the distance between the covering material 30 and the slope A can be reduced, thereby reducing the effects of wind.

[0057] The holding means 40 can be installed by inserting the third movement limiting member 42 into the groove so that the contact portions (42a, 42b) contact the inner wall surface of the second drainage structure 72. Once the holding means 40 is installed, the pipe 44b, which is the tip of the arm portion 44a, is positioned on the slope A side of the second drainage structure 72. By operating the ratchet buckle 44d of the holding member 44, the belt 44c is wound around the ratchet buckle 44d, causing the first member 42c of the third movement limiting member 42 to move slightly upward and the holding member 44 to move downward. When the first member 42c rises, the second member 42d moves slightly toward the front surface 72a and rear surface 72b, more firmly restricting the movement of the holding means 40. Furthermore, by moving the holding member 44, the covering material 30, in which tensile stress S is generated, can be pressed down from above by the holding means 40 (pipe 44b) to the ground. The distance between the covering material 30 on the slope A side of the second drainage structure 72 and the ground can be reduced, thereby reducing the influence of wind.

[0058] The present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations with the same function, method, and result, or configurations with the same purpose and effect). The present invention also includes configurations in which non-essential parts of the configurations described in the embodiments are replaced. The present invention also includes configurations that achieve the same effects or purposes as the configurations described in the embodiments. The present invention also includes configurations in which publicly known technology is added to the configurations described in the embodiments. [Explanation of symbols]

[0059] 10...Sheathing material fixing device, 12...Fixing means, 13...First movement limiting portion, 13a...Front contact portion, 13b...Rear contact portion, 13c...Lower contact portion, 14...Fixing portion, 14a...Fixing groove, 14b...Prevention portion, 20...Tensioning means, 22...Second movement limiting portion, 22a...Front contact portion, 22b...Rear contact portion, 22c...Lower contact portion, 24...Tensioning portion, 24a...Belt, 24b...Ratchet buckle, 24c...Belt, 30...Sheathing material, 32, 33...Fixing rod, 34...One end, 35...Other end, 4 0...holding means, 42...third movement limiting portion, 42a...front contact portion, 42b...rear contact portion, 42c...first member, 42d...second member, 44...holding portion, 44a...arm portion, 44b...pipe, 44c...belt, 44d...ratchet buckle, 44e...placing portion, 50...support, 60...main rope, 71...first drainage structure, 71a...front surface, 71b...rear surface, 71c...bottom surface, 72...second drainage structure, 72a...front surface, 72b...rear surface, 72c...bottom surface, A...slope, S...tensile stress

Claims

1. a fixing means for fixing one end of the covering material stretched on the slope to a predetermined position on the slope; a tensioning means for tensioning the other end of the covering material, the other end of which is fixed by the fixing means, to generate a tensile stress in the covering material; Equipped with The device for fixing a coating material is characterized in that the tensioning means holds the coating material in a state in which the tensile stress is generated in the coating material.

2. 2. The device for securing a dressing material according to claim 1, the fixing means includes a first movement limiting portion that contacts a first drainage structure buried in a position where the one end of the covering material is fixed and limits movement of the fixing means; The covering material fixing device is characterized in that the pulling means is provided with a second movement limiting portion that contacts a second drainage structure buried at a position where the other end of the covering material is fixed and limits the movement of the pulling means.

3. 3. The device for securing a dressing material according to claim 2, Further provided is a pressing means for pressing the covering material onto the ground from above, A coating material fixing device, characterized in that the holding means is provided with a third movement limiting portion that contacts the first drainage structure or the second drainage structure to limit the movement of the holding means.

4. The dressing fixing device according to claim 1 or 2, A plurality of fixing means are provided for one sheet of the covering material, Each of the plurality of fixing means includes a support post extending upward; A covering material fixing device, further comprising a life rope stretched between the plurality of support poles.

5. installing a fixing means within a first drainage structure buried adjacent to the slope; a tensioning means is installed in a second drainage structure buried in a position opposite to the first drainage structure across the slope; one end of the covering material stretched on the slope surface is fixed to the fixing means; A method for fixing a coating material, comprising pulling the other end of the coating material whose one end is fixed, and holding the coating material in a state in which a tensile stress is generated in the coating material.

6. The method for fixing a coating material according to claim 5, a holding means is provided on the first drainage structure or the second drainage structure; A method for fixing a covering material, characterized in that the covering material in the state in which the tensile stress is generated is pressed down onto the ground from above by the pressing means.

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