WO2021079560A1 - 組立式反力体、斜面安定化構造体、及び斜面安定化工法 - Google Patents

組立式反力体、斜面安定化構造体、及び斜面安定化工法 Download PDF

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Publication number
WO2021079560A1
WO2021079560A1 PCT/JP2020/025707 JP2020025707W WO2021079560A1 WO 2021079560 A1 WO2021079560 A1 WO 2021079560A1 JP 2020025707 W JP2020025707 W JP 2020025707W WO 2021079560 A1 WO2021079560 A1 WO 2021079560A1
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WO
WIPO (PCT)
Prior art keywords
rope
bearing plate
reinforcing material
fixing
reaction force
Prior art date
Application number
PCT/JP2020/025707
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English (en)
French (fr)
Japanese (ja)
Inventor
村山　正幸
秀二 加規
Original Assignee
昌栄テクノ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 昌栄テクノ株式会社 filed Critical 昌栄テクノ株式会社
Priority to KR1020217021533A priority Critical patent/KR102381632B1/ko
Publication of WO2021079560A1 publication Critical patent/WO2021079560A1/ja

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron
    • E02D2300/0034—Steel; Iron in wire form
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

Definitions

  • the present invention is an assembly-type reaction force body for pressing a plurality of cord-like bodies arranged along a slope of the ground from top to bottom (ground) in order to stabilize the ground, and a slope stabilization structure. Regarding the body and slope stabilization method.
  • Patent Documents 1 and 2 are known as slope stabilization methods using such lock bolts and bearing plates.
  • the bearing plate disclosed in Patent Documents 1 and 2 is very heavy because it is a flat metal body that has rigidity and can press the ground in a certain area. Therefore, it is difficult for the operator to carry the bearing plate along the slope alone.
  • Patent Documents 1 and 2 includes a step of finally positioning and fixing the slope stabilization structure including the lock bolt and the bearing plate to the ground. That is, it is necessary to put the bearing plate on the ground where it is planned to be installed, lift it again, and fasten the heavy bearing plate while adjusting the positional relationship with other reinforcing members such as lock bolts.
  • Patent Documents 1 and 2 stabilizes the ground in a wider range by interspersing a large number of bearing plates on the slope to be stabilized and connecting them with a rope-like body such as a rope. I'm aiming. More specifically, bearing plates are placed at each position corresponding to the vertices of the triangle, and ropes are hung at the centers of the three bearing plates to connect them to each other.
  • both ends of the rope need to be fixed to the ground at a position different from the bearing plate by using a terminal member (not shown) different from the bearing plate.
  • a terminal member not shown
  • the present invention has been made in view of such circumstances, and is an assembly type reaction force body, a slope stabilization structure, and a slope stabilization method, which are lightweight, easy to carry, and extremely easy to install and position a bearing plate.
  • the purpose is to provide.
  • Another object of the present invention is an assembly-type reaction force body that facilitates rope hanging on each bearing plate and can further increase the force with which each bearing plate presses the ground by binding the rope to each bearing plate. , A slope stabilization structure, and a slope stabilization method.
  • the present inventors divided the slope stabilization method of the present invention into two parts, the work of fixing the portion including the reinforcing material (reinforcing material assembly) to the ground and the work of installing the bearing plate portion.
  • the idea was to complete the fixing work of the reinforcing material using the minimum necessary members prior to the installation of the bearing plate. As a result, as will be described later, the burden on the worker's body is small, and efficient bearing plate installation work can be realized in a short time.
  • the present invention has, for example, the following configurations and features.
  • (Aspect 1) The process of inserting the reinforcing material into the ground with a part of the rod-shaped reinforcing material remaining above the ground, A fixing step of installing a fixing member on the part of the reinforcing material to form a reinforcing material assembly and fixing the reinforcing material assembly to the ground.
  • a slope stabilization method characterized by this.
  • the slope stabilization method according to aspect 2 characterized by the above.
  • (Aspect 4) Further comprising the step of additionally tensioning the intermediate portion of the wire rope with the pressure plate.
  • (Aspect 5) An assembly-type reaction force body used in the slope stabilization method according to any one of aspects 1 to 4.
  • the bearing plate is provided with a reinforcing rib and a base, and The reinforcing ribs and the base are provided with holes for weight reduction.
  • Assembled reaction force body characterized by that.
  • the reinforcing ribs are further provided with holes for fixing the ends and intermediate portions of wire ropes connecting adjacent pressure plates, and rope fixing devices corresponding to the holes.
  • the reinforcing ribs are further provided with a tensioning device capable of additionally tensioning the intermediate portion of the wire rope.
  • the assembled reaction force body according to the sixth aspect (Aspect 8) Slope stability in which the assembly-type reaction forces according to the sixth or seventh aspect are arranged in a staggered manner on a slope, and each assembly-type reaction force is connected and fixed by the wire rope to stabilize the slope. Chemical structure.
  • the construction method of the present invention having the above characteristics is divided into a reinforcing material assembly fixing process and a bearing plate installation process, and the reinforcing material assembly fixing process is completed prior to the bearing plate installation process. Then, since the bearing plate installation process is executed via the connecting socket provided in the reinforcing material assembly, the bearing plate is installed and positioned at the same time, which is an extremely easy operation.
  • the bearing plate of the present invention has a base and reinforcing ribs, and these constituent members are provided with a large number of holes for the purpose of weight reduction and rope insertion / fixing, so that the bearing plate is compared with the conventional bearing plate. Lightweight and easy to carry. Further, since the hollow hole formed in the bearing plate of the present invention may have a shape corresponding to the connecting socket, it is not necessary to increase the diameter or the like more than necessary as compared with that of the conventional product.
  • the assembled reaction force body of the present invention not only fulfills the original function as a pressure receiving plate of the reinforcing material, but also rope hooks (crossing of ropes with the bearing plate as a base point), fixing the end or intermediate portion of the rope. , Additional tension of the rope, etc. can all be fulfilled in this reaction force area.
  • (A) and (b) show an exploded perspective view of an assembled reaction force body, and (c) show a perspective view of an assembled reaction force body in an assembled state. It is a figure which showed the Example and the modification of the reinforcing rib.
  • (A) and (b) are a perspective view and an exploded perspective view of the terminal fixing bracket, and (c) is a diagram explaining a method of fixing the rope terminal to the bearing plate using the terminal fixing bracket.
  • (A) is a diagram illustrating a method of fixing the middle portion of the rope to the reinforcing rib using the intermediate portion fixing bracket, and (b) is an intermediate portion fixing bracket (deformed example) corresponding to the reinforcing rib (deformed example).
  • (c) is the exploded perspective view of the intermediate part fixing metal fitting (deformed example). It is a figure which showed the rope connection layout (connection state between an assembly type reaction force body). It is a figure which showed the exploded perspective view and the perspective view of the rope tension metal fitting. It is a figure explaining the method of additional tensioning a rope on a bearing plate using a rope tension metal fitting.
  • connection structure in which a component (eg, a connecting socket described below) is "screwed” to another component (eg, a stiffener assembly).
  • a component eg, a connecting socket described below
  • a stiffener assembly e.g., a stiffener assembly
  • Known connection structures such as “bonding”, “engagement”, “adhesion”, “welding”, and “connection (either physical, chemical, or magnetic connection)” may be used.
  • the “slope” used in the present invention such as the “slope stabilization structure” is a slope including a partially flat surface including a natural slope as well as an artificial slope such as a cut slope and a slope. You may.
  • FIG. 1 is a flowchart showing each process of a conventional slope stabilization method for installing an assembly type reaction force body including a bearing plate on the ground.
  • FIG. 2 shows an outline (illustration) of a conventional pressure plate installation method.
  • a vertical hole 2 is formed in the ground 1 from the ground surface toward the ground by using a drill or the like (not shown) (see also step S101, FIGS. 1 and 2).
  • the grout 3 is injected so as to fill the space in the vertical hole 2 (step S102).
  • the grout is a fluid liquid that is injected to fill cavities, voids, gaps, etc. in construction work and ground reinforcement work.
  • cement (mortar) type, glass type, synthetic resin and the like are used.
  • the reinforcing material (steel material such as a lock bolt) 4 is inserted into the vertical hole 2 so as to pass through the central axis of the vertical hole 2 (step S103).
  • the bearing plate 110 is prepared and temporarily placed on the ground surface while the reinforcing material 4 is inserted into the central hole in the hollow cylinder 111 provided in the center thereof (step S104). Then, the position of the bearing plate 110 is adjusted so that the central axis of the central hole coincides with the axis of the reinforcing member 4 (step S105).
  • One end of the reinforcing member 4 projects upward from the hollow cylinder 111 of the bearing plate 110.
  • a washer 112 and a spherical washer 113 are installed above the hollow cylinder 111 so as to cover the central hole (step S106a and step S106b).
  • each hole of the washer 112 and the spherical washer 113 is inserted into one end (upper end) of the reinforcing material 4.
  • One end of the reinforcing material 4 is further screwed with a nut 114 and a rust preventive cap 115 (step S106c and step S106d). That is, the bearing plate 110 and the reinforcing member 4 are integrated by these members 112 to 115 (step S106).
  • the above steps S101 to S106 are repeated, and a plurality of bearing plates 110 are arranged in a staggered manner on the slope to be stabilized (step S107).
  • a wire rope (not shown, hereinafter simply referred to as a "rope") is hung on each bearing plate 110 to connect the adjacent bearing plates 110 (step S108).
  • a rope is hung on each bearing plate 110 so that the three peripheral bearing plates 110 form the vertices of a triangle.
  • the wire rope between the bearing plates 110 usually connects a tensioning device (not shown) such as a turnbuckle installed at an intermediate position between the bearing plates 110 to the rope and tightens the tensioning device. Then, the rope can be tensioned (step S109).
  • step S105 the worker must adjust the center position and direction of the heavy bearing plate 110 while lifting it from the ground surface. Further, the worker needs to prevent the bearing plate 110 from shifting or rotating with respect to the reinforcing material 4 from the temporary placement of the bearing plate 110 on the slope (process S104) to the final fixing by nut screwing (process S106). There is.
  • the bearing plate 110 has a wide variety of shapes. It can be roughly divided into circles, squares and triangles. Basically, a hole (for example, a central hole in the hollow cylinder 111) is provided at the center of the hole (for example, a central hole in the hollow cylinder 111) for inserting the reinforcing material 4 (for example, a steel material such as a lock bolt).
  • the reinforcing material 4 for example, a steel material such as a lock bolt.
  • the size of this hole is usually ⁇ 45 mm if it is a flat shape. Is.
  • the hole diameter closer to the diameter of the reinforcing material 4 is such that the reinforcing material 4 fits in the center of the bearing plate 110.
  • the natural slope is not flat and the reinforcing material 4 is erected at an angle, if the hole has a diameter of less than ⁇ 45 mm, the reinforcing material 4 interferes with the inner wall of the hole and the bearing plate 110 cannot be installed. Occurs. Therefore, ⁇ 45 mm or more is the mainstream.
  • the size and thickness of the flat bearing plate 110 increase in proportion to the load received by the bearing plate 110, and the weight also increases in proportion to the load, so that the burden on the worker increases.
  • the bearing plate 110 having a shape in which the rib 120 for thinning the flat steel and maintaining the strength is provided is provided with the rib 120 in order to integrate the rib 120 with the base 130 of the flat steel.
  • a hollow cylinder 111 is required at the center. If the diameter of the hollow cylinder 111 remains as ⁇ 45 mm, the diagonally inclined reinforcing member 4 tends to come into contact with or interfere with the inner wall of the hollow cylinder 111. In order to avoid this, it is more desirable to double the diameter of the cylinder, but the weight of the bearing plate 110 also increases extremely.
  • slope Stabilization Method of the Present Invention The slope stabilization method of the present invention, which can solve the above problems of the conventional method, will be described in detail below.
  • the portion including the reinforcing material 4 (reinforcing material assembly 40) is fixed to the ground and the bearing plate portion is installed, and the reinforcing material 4 is fixed using the minimum necessary members (reinforcing material 4).
  • step S4 described later is completed prior to the installation of the bearing plate 10 (step S5 described later).
  • FIG. 3 is a flowchart showing each process of the slope stabilization method of the present invention.
  • FIG. 4 shows an outline (illustration) of the pressure plate installation method of the present invention.
  • 5 (a) shows an exploded perspective view of the reinforcing material assembly 40
  • FIGS. 6 (a) and 6 (b) show an exploded view of the assembled reaction force body 6 including the reinforcing material assembly 40 and the bearing plate 10.
  • a perspective view is shown.
  • FIG. 6C is a perspective view of the assembled reaction force body 6 in a state where components other than the rope are assembled.
  • a vertical hole 2 is formed from the surface of the ground 1 toward the ground (step S1), a grout 3 is injected so as to fill the space in the vertical hole 2 (step S2), and the vertical hole 2 is filled.
  • a reinforcing material 4 (for example, a steel material such as a lock bolt) is inserted into the vertical hole 2 so as to pass through the central axis of the above (step S3).
  • each member of the fixing plate 41, the spherical washer 42, and the nut 43 is also referred to as a fixing member to the reinforcing member 4, and the state of being assembled to the reinforcing member 4 is also referred to as a reinforcing material assembly 40.
  • the hollow cylindrical connecting socket 44 is installed at the upper end of the reinforcing member 4 (step S4d).
  • a perspective view of the spherical washer 42 is shown on the left side portion of FIG. 5B, and a perspective view (that is, a cross-sectional state) of one half portion 42H when the spherical washer 42 is broken is shown on the right side portion of the figure. ..
  • a perspective view of the connecting socket 44 is shown on the left side portion of FIG. 5C, and a perspective view (that is, a cross-sectional state) of one half portion 44H when the connecting socket 44 is broken is shown on the right side portion of the figure. ..
  • the bearing plate 10 having the hollow cylinder 11 is installed on the reinforcing material assembly 40 (step S5).
  • the hollow cylinder 11 is provided with a central hole 12 having an inner diameter (slightly larger) corresponding to the outer diameter of the connecting socket 44.
  • the pressure plate installation step S5 of the present invention is characterized in that the pressure plate 10 is installed and positioned on the reinforcing material assembly 40 at the same time.
  • FIG. 6A shows the reinforcing ribs 20 and the base 30 formed on the bearing plate 10 of the present invention
  • FIG. 7A shows the reinforcing ribs 20 of the first embodiment
  • FIGS. 7B and 7C show the reinforcing ribs 20A and 20B according to the modified examples.
  • the base 30 forms a flat plate having a through hole having a size corresponding to the central hole 12 of the hollow cylinder 11 formed in the center, and reinforcing ribs 20 and the hollow cylinder 11 are installed on the upper surface of the base 30 (for example). , Welded).
  • the outer peripheral portion of the base 30 is formed with holes 31 for weight reduction in the flat plate region 32 between the reinforcing ribs 20 (that is, the portion where the reinforcing ribs 20 are not installed). It is preferable that a cut-off portion 33 is formed in which the outer edge of the outer peripheral portion is deleted or curved toward the center.
  • the rotation prevention hole 34 is provided at the outer edge portion of the flat plate region 32 near the cut-off portion 33.
  • the reinforcing rib 20 is also formed with a large number of holes 22, 23, and 24 for inserting and attaching the wire rope 5, as will be described later. Therefore, the pressure bearing plate 10 of the present invention is much lighter than the conventional product, and is easy for workers to carry and handle.
  • step S6 (Installation of multiple pressure plates on the slope) The above steps S1 to S5 are repeated, and a plurality of bearing plates 10 are arranged in a staggered manner on the slope to be stabilized (step S6).
  • each bearing plate 10 is securely fixed to the slope, and a bearing effect for stabilizing the slope is imparted.
  • each bearing plate 10 is provided with a rust preventive measure (step S9).
  • a rust preventive oil for example, grease
  • a cap base 13 is installed as shown in FIGS. 6 (b) and 6 (c) (step S9a), and a rust preventive cap is installed.
  • step S9b The outer peripheral edge of the cap base 13 is seated at an engaging end 27 (see, for example, FIG. 7A) cut out in the reinforcing rib 20 to accommodate it.
  • a screw hole 14a may be further provided in the head of the rust preventive cap 14, and a cap screw 15 may be further screwed into the screw hole 14a.
  • the central hole 12 is partitioned by more rust preventive oil (the rust preventive cap 14 and the central hole 12) than necessary.
  • the rust preventive oil having a volume larger than the space) can be discharged to the outside of the rust preventive cap 14 through the screw hole 14a.
  • the head of the reinforcing material 4 is sealed by the central hole 12 completely filled with the rust preventive oil and the rust preventive cap 14, and the rust preventive performance is further enhanced.
  • FIG. 5D shows a perspective view showing the rust preventive cap 14 and the cap screw 15 from the outside
  • the right side portion of FIG. 5D shows a perspective view showing the rust preventive cap 14 from the inside.
  • the screw groove 14b provided inside the rust preventive cap 14 is screwed into the screw groove 44b at the upper end of the connecting socket 44.
  • the load acting on the reinforcing material 4 is a spherical washer 42, a connecting socket 44 and a hollow cylinder 11, a rust preventive cap 14, a cap base 13, a reinforcing rib 20, and a bearing plate base 30.
  • the slope is stabilized by transmitting in the order of. Further, since the head of the reinforcing material 4 does not protrude to the outside of the bearing plate 10, the possibility of direct hit such as falling rocks is reduced, and the reinforcing material 4 itself is less likely to be destroyed or damaged.
  • the bearing plate 10 is provided with a total of six thin plate-shaped reinforcing ribs 20.
  • the reinforcing rib 20 is arranged on the base 30 so that one end (base end) abuts on the hollow cylinder 11 and the other end (tip) extends radially (radially outward) from the hollow cylinder 11 as a base point. Has been done.
  • Each reinforcing rib 20 is provided with a plurality of holes 22, 23, 24 for inserting or fixing the rope 5 (see FIG. 7A). More specifically, the first hole 22 for fixing the terminal 51 of the rope 5, the second hole 23 for fixing the intermediate portion 53 of the rope 5, and the proximal end side of the plurality of ribs 20 are provided.
  • the reinforcing rib 20 is provided with a third hole 24 for inserting the rope 5 around the hollow cylinder 11. Further, the reinforcing rib 20 is also provided with a lightweight hole 21 for reducing the weight of the reinforcing rib 20 and the assembly type reaction force body 6 including these.
  • the bearing plate 10 of the present invention not only acts as a pressure receiving plate of the reinforcing material 4, but also includes the reinforcing rib 20 having the above structure, so that the rope 5 connecting the neighboring bearing plates 10 is connected to the rope 5. It provides various fixing and binding functions.
  • the terminal 51 of the rope 5 can be fixed to the first hole 22 of the reinforcing rib 20 by using, for example, the terminal fixing bracket 60 as shown in FIG. 8A.
  • the terminal fixing bracket 60 includes two bolts 61, two washers 62, two fixing plates 63 having holes 63a through which the bolts 61 are inserted, and a hollow cylinder. It can be composed of two spacers 64 having a shape, a disc spring washer 65, and a nut 66.
  • the spacer 64b which is different from the spacer 64a inserted into the first hole 22, has a shape protruding from the bearing plate 10 in the outer peripheral direction. Therefore, as shown in FIG. 8C, if the rope terminal 51 having the winding grip 52 is used, a part of the terminal fixing bracket 60 is once disassembled, and the spacer 64b is attached to the ring portion of the winding grip 52.
  • the rope terminal 51 and the terminal fixing bracket 60 attached to the reinforcing rib 20 can be connected, and by extension, the rope 5 and the pressure plate 10 are connected via the terminal fixing bracket 60. And can be connected.
  • the intermediate portion 53 of the rope 5 can be fixed by using the second hole 23 of the reinforcing rib 20.
  • the rope 5 is tentatively pulled into the outer peripheral portion of the hollow cylinder 11 of the bearing plate 10 from the direction of the arrow T, and the direction is changed (curved) at the outer peripheral portion.
  • the rope 5 can be installed on the bearing plate 10 so as to be pulled out in the direction of the arrow D.
  • one end (terminal 51) of the rope 5 is brought closer to the outer peripheral portion of the cylinder 11 along the reinforcing rib 20 extending in the arrow T direction, and the third reinforcing rib 20 adjacent to the reinforcing rib 20 is the third.
  • the terminal 51 is inserted through the hole 24, the terminal 51 is pulled out along the reinforcing rib 20 adjacent to the last inserted reinforcing rib 20 and extending in the direction of arrow D, and the rope 5 is tensioned with a predetermined tension. It is installed on the reinforcing rib 20.
  • a U-bolt 71 and a pedestal 72 having a hole through which the tip of the U-bolt 71 can be inserted are prepared, and the U-bolt 71 and the pedestal 72 are provided. While sandwiching the intermediate portion 53 of the rope 5, each tip of the U bolt 71 is inserted into the second hole 23 of the reinforcing rib 20. Then, after inserting the tip of the U bolt 71 into the disc spring washer 73 arranged on the side opposite to the side where the intermediate portion 53 of the rope 5 exists, the nut 74 is screwed to the tip.
  • the intermediate portion 53 of the rope 5 in each bearing plate 10 is fixed at four locations for one rope (two locations for each reinforcing rib 20). However, the present invention is not limited to this, and there may be two or six locations.
  • the bearing plates 10 that are close to each other can be connected and fixed by the rope 5 by the rope arrangement shown in each figure of FIG. Become.
  • the bearing plates 10 (assembled reaction force bodies 6 including the bearing plates 10) are arranged in a staggered pattern so that the two ropes 5 intersect with one bearing plate 10. It is hung in a zigzag manner, and can be fixed to the reinforcing ribs 20 of each bearing plate 10 by the intermediate portion fixing metal fitting 70. That is, the intersection of the ropes 5 results in a continuous rope arrangement in which a rhombus pattern (a pattern in which the bearing plate 10 is arranged at each apex of the rhombus and the rope 5 is arranged on each side).
  • the bearing plates 10 may be arranged in a staggered pattern, and three ropes 5 may be hung on the bearing plates 10 so as to intersect each other. In this case, a triangle is formed.
  • the pattern is a continuous rope arrangement.
  • each bearing plate 10 (assembled type including the bearing plate 10) is passed in a straight line so as to pass another additional rope 5a (broken line shown in the figure) to each row (vertical direction in the figure) in a straight line. All that is required is to hang the additional rope 5a on the force body 6). In this way, even for beginner workers, the rope hanging work is simple and clear, and can be completed in a short time. Further, in this modified example, since the region passing through each half of the rhombus is also tied with the additional rope 5a, the ground bearing effect and slope stabilization in the region where the bearing plate 10 is laid can be further promoted.
  • the reinforcing rib 20B according to the second modification is also provided with a second hole 23B for fixing the intermediate portion 53 of the rope 5.
  • the second hole 23B according to the second embodiment is different from the second hole (round hole) 23 according to the first embodiment in that the elongated hole shape 23B (more preferably, the two elongated holes 23B 1 and 23B 2 are the centers. It forms an orthogonal "+" -shaped hole shape).
  • FIG. 9C there are two intermediate portion fixing brackets 70B according to the modified example corresponding to the reinforcing rib 20B, a U bolt 71B and a pedestal 72B through which the tip of the U bolt 71B can be inserted. It is composed of the nut 74B of.
  • the intermediate portion 53 of the rope 5 is sandwiched between the U bolt 71B and the reinforcing rib 20B as shown in FIG. 9B.
  • the tip of the U bolt 71B protruding to the opposite side of the reinforcing rib 20B is passed through the holes of the pedestal 72B, and the nut 74B is screwed into each tip protruding from these holes.
  • the rope tension jig 80 has, for example, a jig body 81 as shown in each figure of FIG.
  • the jig main body 81 has two flat disks 82 provided with a central hole 82a, and a bearing 83 forming a hollow cylindrical body that separates the flat disks 82 in parallel.
  • Each of the flat disks 82 is formed with protruding plates 82b extending radially outward, and a columnar rope holding body connecting the opposing flat disks 82 to the tip of the protruding plates 82b. 84 is provided. Further, inside the outer peripheral edge of one of the flat disks 82 (the portion where the protruding plate 82b is not provided), the flat disk 82 penetrates along the virtual circumference having a virtual radius shorter than the radius of the flat disk 82. A plurality of positioning holes 82c are provided (in the figure, three on one radial side of one flat disk 82 and three on the other radial side (that is, corresponding positions of line symmetry)). Further, on the outside of one of the flat disks 82, a rotary knob 85 forming a cube having a central hole 85a is provided.
  • the jig main body 81 composed of the above members 82 to 85, one integrated by casting may be used.
  • the rope tensioning jig 80 further includes a rotating shaft bolt 86a and a nut 86b corresponding thereto, and a positioning shaft bolt 87a and a nut 87b corresponding thereto.
  • the rotating shaft bolt 86a is inserted through the jig body 81. Specifically, the tip side of the rotating shaft bolt 86a is inserted in the order of the center hole 85a of the rotation knob 85, the center hole 82a of one flat disk 82, the inside of the bearing 83, and the center hole 82a of the other flat disk 82. Then, the head 86h of the rotating shaft bolt 86a is inserted into the jig body 81 until it comes into contact with the rotating knob 85. Then, the nut 86b is screwed onto the tip of the rotating shaft bolt 86a protruding from the jig body 81. Further, the positioning shaft bolt 87a is inserted into the positioning hole 82c provided in one of the flat disks 82, and the nut 87b is screwed to the tip end side thereof.
  • the reinforcing rib 20B installed on the bearing plate 10 is provided with a fourth hole 25 (see FIGS. 7 (c) and 9 (b)) for additional tensioning of the rope.
  • the fourth hole 25 includes a shaft insertion hole 25a and a plurality of (12 in the figure) positioning holes 25b arranged apart from each other along the circumference of a virtual circle centered on the shaft insertion hole 25a. It is provided.
  • the tip of the rotating shaft bolt 86a of the rope tensioning jig 80 is inserted into the shaft insertion hole 25a, and the jig body 81 is applied to one surface of the reinforcing rib 20B.
  • the nut 86b is screwed onto the tip of the shaft bolt 86a from the opposite side of the applied surface.
  • the rope tensioning jig 80 is rotatably attached to the reinforcing rib 20B (see FIG. 12D).
  • FIG. 12A shows a state in which only the rope 5 is attached to the bearing plate 10 before the rope tensioning jig 80 is used.
  • the rope 5 floats from the ground (ground 1), the bearing effect on the slope (the effect of the rope 5 pressing the ground through the bearing plate 10) is more than expected. There are concerns that cannot be expected. Further, when an extremely long rope 5 is used, there is a possibility that the rope 5 is not sufficiently strained in the horizontal direction.
  • the rope 5 is hung around the reinforcing rib 20B on the bearing plate 10 as described above, and a lever block (not shown) is used.
  • a predetermined tension is applied to the rope 5 using a registered trademark) or the like.
  • the intermediate portion 53 of the rope 5 is fixed to the reinforcing rib 20B by using the intermediate portion fixing metal fitting 70B.
  • a part of the rope 5 that crosses the fourth hole 25 of the reinforcing rib 20B is pressed against the lower side (ground side) by the bearing 83 of the rope tension metal fitting 80 to deform it, and the rotating shaft bolt 86a of the rope tension metal fitting 80 is formed.
  • the intermediate portion 53 of the rope 5 extending between the intermediate portion fixing bracket 70B and the inner rope holding body 84 is further bent downward.
  • the tension in the rope 5 is increased by the amount that the rope 5 is bent, and the gap between the bent portion of the rope 5 and the ground 1 is substantially eliminated, so that the rope 5 is sufficiently directed toward the ground.
  • the rope tension metal fitting 80 is a device that further reinforces the fastening force between the rope 5 and the bearing plate 10 by the intermediate portion fixing metal fitting 70B.
  • the construction method of the present invention having the above characteristics is divided into a reinforcing material assembly fixing process and a bearing plate installation process, and the reinforcing material assembly fixing process is completed prior to the bearing plate installation process. Then, since the bearing plate installation process is executed via the connecting socket provided in the reinforcing material assembly, the bearing plate is installed and positioned at the same time, which is an extremely easy operation.
  • the bearing plate of the present invention has a base and reinforcing ribs, and these constituent members are provided with a large number of holes for the purpose of weight reduction and rope insertion / fixing, so that the bearing plate is compared with the conventional bearing plate. Lightweight and easy to carry. Further, since the hollow hole formed in the bearing plate of the present invention may have a shape corresponding to the connecting socket, it is not necessary to increase the diameter or the like more than necessary as compared with that of the conventional product.
  • the assembly type reaction force body of the present invention not only fulfills the original function of the pressure receiving plate of the reinforcing material, but also rope hooking (crossing of ropes with the bearing plate as the base point), fixing the end or intermediate portion of the rope, It can perform various functions such as additional tension of the rope.
  • the present invention is particularly suitable for stabilizing slopes and slopes where collapse is a concern, and has very high industrial applicability and utility value.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Piles And Underground Anchors (AREA)
PCT/JP2020/025707 2019-10-24 2020-06-30 組立式反力体、斜面安定化構造体、及び斜面安定化工法 WO2021079560A1 (ja)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010196429A (ja) * 2009-02-27 2010-09-09 Daikure Co Ltd 法面への受圧板の施工方法及び受圧板の位置決め用部材
JP2013136888A (ja) * 2011-12-28 2013-07-11 Okabe Co Ltd 斜面安定化工法および支圧板
JP2016194205A (ja) * 2015-03-31 2016-11-17 日鐵住金建材株式会社 斜面安定化工法用の支圧部材
JP2017053093A (ja) * 2015-09-07 2017-03-16 株式会社フロム アンカーボルト取付用金具及びこの金具を用いたアンカーボルト取付方法
JP2017179981A (ja) * 2016-03-31 2017-10-05 日鐵住金建材株式会社 斜面安定化工法の地上部分保護構造

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3659622B2 (ja) 1999-03-29 2005-06-15 日鐵建材工業株式会社 斜面安定化装置
KR100353772B1 (ko) * 2000-07-13 2002-09-27 합자회사 광명산업안전공사 낙석 방지용 안전망
JP3479516B2 (ja) * 2000-10-06 2003-12-15 東京製綱株式会社 斜面安定工法および斜面安定装置
KR100925414B1 (ko) * 2009-06-09 2009-11-06 주식회사 비엠테크 경사면 보강 배수장치 및 그를 이용한 녹화공법
JP5828318B2 (ja) 2012-12-17 2015-12-02 日鐵住金建材株式会社 斜面安定化工法
KR101614358B1 (ko) * 2014-03-02 2016-04-21 신창섭 지면 밀착식 박판형 확대 지압판

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010196429A (ja) * 2009-02-27 2010-09-09 Daikure Co Ltd 法面への受圧板の施工方法及び受圧板の位置決め用部材
JP2013136888A (ja) * 2011-12-28 2013-07-11 Okabe Co Ltd 斜面安定化工法および支圧板
JP2016194205A (ja) * 2015-03-31 2016-11-17 日鐵住金建材株式会社 斜面安定化工法用の支圧部材
JP2017053093A (ja) * 2015-09-07 2017-03-16 株式会社フロム アンカーボルト取付用金具及びこの金具を用いたアンカーボルト取付方法
JP2017179981A (ja) * 2016-03-31 2017-10-05 日鐵住金建材株式会社 斜面安定化工法の地上部分保護構造

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KR102381632B1 (ko) 2022-04-01

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