JP4738836B2 - Sloped ground stabilizer and sloped ground stabilization method - Google Patents

Description

  The present invention is a civil engineering material, and more specifically, an inclined ground stabilizer capable of more actively improving ground strength by discharging groundwater in the ground as well as simply fixing an inclined ground at risk of collapse. And a stabilization method using the same.

In particular, in the mountainous areas, earth and sand disasters that cause the ground slope to collapse frequently occur every year due to heavy rain and so on. About 70% of the collapse of these surface slopes occurs around 2m below the ground surface, and it is clear that there is stable rock or hard soil deeper than this collapsed soil. It has also been known that the rise of groundwater is one of the causes of the ground surface collapse.
Japanese Patent No. 3033678 None

  In Patent Document 1, a rock bolt is connected to the tip of a drilling drill, a rock located below the ground surface is drilled by a drilling bit attached to the tip of the rock bolt, and a grout material is formed in the formed drilling hole. (Cement milk) is filled, and the rock bolt and the rock mass are combined with a grout material to give an anchor function, and the head of the rock bolt protrudes above the ground surface and is connected to the bearing plate to give tension to the lock bolt. And a method for stabilizing an inclined surface that compresses and supports the ground by a bearing plate is disclosed.

  In the slope stabilization method disclosed in Patent Document 1, the rock mass is excavated, and grout material (cement milk) is injected into the excavated hole to fix the rock bolt and the rock mass. In the case of a grout material, the curing strength is likely to vary, and the tensile strength of the lock bolt as an anchor cannot be secured sufficiently, and it may cause contamination of the surrounding groundwater and adversely affect the living environment.

  In addition, when excavating the rock mass, excavation soil is naturally generated. Therefore, a great amount of labor and cost are required for the disposal of the excavation soil. Furthermore, since the anchor could only have a function as a fixing tool, the groundwater in the ground could not be discharged actively, and the ground could not be strengthened by controlling the groundwater.

  As described above, the present inventor has conducted intensive research to realize stabilization of inclined ground, which has been a technical problem, and as a result, the inclined ground can be stably and reliably fixed, and groundwater in the ground can be actively It is succeeded in developing an inclined ground stabilizer that can further increase the strength of the ground by exhausting it, and is proposed here as the present invention.

  The invention of claim 1 has a cylindrical shape, the tip opening is closed by the closing plate 2, the excavation blade 3 is fixed to the closing plate 2, and one or a plurality of pieces are provided on the outer periphery near the tip. A steel pipe anchor body 1 in which a spiral blade 4 is fixed, a plurality of permeations 6 are formed on the peripheral wall 5, and a male screw 12 is formed on the outer periphery near the head; A mesh-like cylinder 9 having a mesh smaller than the hole diameter of 6 and inserted into the interior space of the anchor body 1; and a through-hole 11 through which the head of the anchor body 1 is inserted at the center. The bearing plate 10 has a nut 13 screwed onto the male thread 12 of the anchor body 1 on the upper surface of the anchor body 1; and a cap 14 that detachably closes the head opening end of the anchor body 1; Made up the ingredients.

  Further, the invention according to claim 2 has a cylindrical shape, the tip opening is closed by the closing plate 2, the excavation blade 3 is fixed to the closing plate 2, and one or more are provided on the outer periphery near the tip. A steel pipe anchor body 1 in which a plurality of spiral blades 4 are fixed, a plurality of permeations 6 are formed on the peripheral wall 5, and a female screw 17 is formed on the inner periphery near the head; and the anchor body An extension steel pipe 18 formed on the outer periphery with a male screw 19 screwed to one female screw 17; a mesh smaller than the diameter of the through hole 6 of the anchor body 1, and inserted into the inner space of the anchor body 1 A through-hole 11 through which the head of the anchor body 1 is inserted at the center, and a nut 13 that is screwed onto the male screw 19 of the extension steel pipe 18 is positioned on the upper surface of the through-hole 11. The bearing plate 10 being fastened; the head opening of the anchor body 1 It constituted the slope Release stable instrument from a; a cap 14 to freely closed detachable.

  Further, the invention according to claim 3 has a cylindrical shape, the excavating blade 3 is attached to the tip surface, and a truncated conical tapered portion 32 is formed on the head side. A drilling bit 31 in which a connecting engagement protrusion 33 having a prismatic shape is formed coaxially from the center of the end surface of the tapered portion 32; a cylindrical shape, from a small diameter portion of the tapered portion 32 of the drilling bit 31 It has a slightly larger inner diameter, a plurality of slits 39 are formed in the axial direction from the tip side, a male screw 12 is formed on the outer periphery near the head, and a plurality of through holes 6 are formed in the peripheral wall 5 A wedge-clamping steel pipe 38; a mesh-like cylinder 9 having a mesh smaller than the diameter of the through-hole 6 of the wedge-clamping steel pipe 38 and inserted into the interior space of the anchor body 1; It has a through hole 11 through which the head of the anchor body 1 can be inserted, A bearing plate 10 in which a nut 13 screwed to the male screw 12 of the anchor body 1 is positioned on the upper surface of the hole 11; and a cap 14 that detachably closes the head opening end of the steel tube 38 for wedge fastening. An inclined ground stabilizer was constructed.

In addition, the invention according to claim 4 has a cylindrical shape, the excavation blade 3 is attached to the tip surface, and a truncated cone-shaped tapered portion 32 is formed on the head side. A drilling bit 31 in which a connection engagement projection 33 having a prismatic shape is formed coaxially from the center of the end face of the tapered portion 32; and a small diameter portion of the tapered portion 32 of the drilling bit 31 having a cylindrical shape. It has a slightly larger inner diameter, a plurality of slits 39 are formed in the axial direction from the front end side, a female screw 17 is formed on the outer periphery near the head, and a plurality of through holes 6 are formed in the peripheral wall 5. A formed steel pipe for wedge fastening 38; an extension steel pipe 18 formed on the outer periphery with a male screw 19 screwed into the female thread 17 of the wedge fastening steel pipe 38;
A mesh-like cylinder 9 having a mesh smaller than the diameter of the through hole 6 of the steel pipe for wedge clamping 38 and inserted into the inner space of the anchor body 1; a penetration through which the head of the anchor body 1 is inserted in the center A bearing plate 10 having a hole 11, and a nut 13 screwed onto the male screw 12 of the anchor body 1 on the upper surface of the through-hole 11; An inclined ground stabilizer is constructed from the cap 14 that is closed.

  The wedge-clamping steel pipe 38 or the anchor body 1 acting as an anchor is securely fixed to the rock 40 or the supporting ground 15 made of sandy soil, viscous soil, etc., and sufficient tension can be applied to the bearing plate 10. It becomes possible to hold the inclined ground reliably and stably. Further, when the steel pipe used in the inclined ground stabilizer has a large diameter and thickness, the steel pipe can stand by itself and sufficiently resist the horizontal movement of the landslide. Furthermore, because it is not fixed to the ground using grouting material, there is no variation in tension, and uniform pressing force can be applied to the desired area with a wide area to prevent sediment collapse. In addition, there is no risk of groundwater contamination, which is very advantageous for environmental conservation.

  Furthermore, since the peripheral wall 5 of the anchor body 1 and the wedge-clamping steel pipe 38 is provided with a through-hole 6, groundwater in the ground is absorbed into the anchor body 1 and the wedge-clamping steel pipe 38 from the through-hole 6. In addition, the ground strength is prevented from lowering due to the accumulation of groundwater and the water level rising, and the fixing of the inclined ground becomes even stronger.

  The anchor body 1 or the wedge-clamping steel pipe 38 that is fixed to the supporting ground 15 and the rock 40 and performs the bearing function is provided with through holes 6, and ground water in the ground flows into these through the through holes 6. The greatest feature of the present invention exists.

  FIG. 1 is a front view of Embodiment 1 of an inclined ground stabilizer according to the present invention, and FIG. 2 is a longitudinal sectional view thereof.

  In the figure, reference numeral 1 denotes a cylindrical steel pipe anchor body, the front end opening of which is closed by a disc-shaped closing plate 2, and a digging blade 3 is fixed to the closing plate 2. Yes. A spiral blade 4 is fixed to the outer periphery of the anchor body 1 near the tip. In the first embodiment, only one spiral blade 4 is provided, but a plurality of spiral blades 4 may be provided at intervals as shown in FIG. A plurality of spiral blades 4 of different sizes may be provided, such as the spiral blade 4 having a large diameter closer to the head.

  A plurality of through holes 6 are formed in the peripheral wall 5 of the anchor body 1. The through-hole 6 is provided at least at a position where the anchor body 1 contacts the aquifer 8 in the ground when the anchor body 1 is dug from the ground surface 7 into the ground. You may provide over the whole region of the surrounding wall 5 to the vicinity.

  Furthermore, a male thread 12 is formed on the peripheral wall 5 near the head of the anchor body 1 up to the head opening end. Reference numeral 9 denotes a mesh-like cylindrical body made of metal or synthetic resin having a mesh smaller than the diameter of the through hole 6 and is inserted into the inner space of the anchor body 1.

  Reference numeral 10 denotes a plate-shaped pressure bearing plate. A through hole 11 is formed in the center to allow the head side of the anchor body 1 to be inserted, and the male screw of the anchor body 1 is formed on the upper surface of the through hole 11. A nut 13 that is screwed onto 12 is positioned. In the first embodiment, the bearing plate 10 has a circular planar shape, but it is needless to say that a planar shape other than a circular shape such as a polygonal shape such as a quadrangle or a starfish shape may be adopted. Further, a cap 14 is detachably fitted to the head opening end of the anchor body 1.

  This Example 1 has the configuration as described above, and is used for fixing an inclined ground according to the following procedure. That is, a drilling drill (not shown) is connected to the head of the anchor body 1, thereby rotating the anchor body 1 and screwing the anchor body 1 from the ground surface 7 into the ground by the spiral advance force of the spiral blade 4. When the blade 4 reaches the support ground 15, the excavation drill is separated, the through hole 11 of the bearing plate 10 is inserted into the head of the anchor body 1 projecting on the ground surface 7, and the nut 13 is inserted into the male screw 12 of the anchor body 1. Are tightened to apply tension to the anchor body 1 and the cap 14 is fitted into the head opening of the anchor body 1 to complete the installation.

At this time, the peripheral wall 5 of the anchor body 1 is provided with a through hole 6, and the mesh-shaped cylinder 9 is inserted in the inner space of the anchor body 1. When the contained aquifer 8 exists, the groundwater flows into the interior space of the anchor body 1 through the through holes 6 and the mesh-shaped cylinder 9 of the anchor body 1, thereby preventing the groundwater from rising. The ground is stabilized.
Normally, as shown in FIG. 6, the anchor body 1 is fixed obliquely from above the ground surface 7. However, when the drainage function is particularly important, the anchor body 1 is fixed as shown in FIG. 17. In this case, the groundwater flowing into the anchor body 1 is naturally discharged from the head of the anchor body 1 to the outside.
Further, when both the discharging function and the ground support function are to be emphasized, as shown in FIG. 18, the anchor body 1 may be fixed alternately from a substantially horizontal direction and obliquely upward.

  In addition, since the mesh-shaped cylinder 9 having a mesh smaller than the hole diameter of the through hole 6 is inserted inside the anchor body 1, earth and sand into the anchor body 1 is filtered by the filtering function of the mesh-shaped cylinder 9. The inflow is blocked, there is no clogging, and groundwater flows in smoothly over a long period of time. Moreover, since the cap 14 is fitted in the head opening end of the anchor body 1, the inflow of earth and sand from the head opening end is also prevented. The groundwater that has flowed into the anchor body 1 may stay in the anchor body 1 as it is. However, in order to further reduce the groundwater, the cap 14 is removed and the head opening end of the anchor body 1 is removed. A pipe may be inserted, and the water staying inside the anchor body 1 may be actively sucked up by a pump.

  Thus, in this Example 1, the fixing function of the anchor body 1 is strengthened by the absorption of groundwater, and it is possible to fix the inclined ground much more strongly than the conventional one.

  4 is a front view of Embodiment 2 of the inclined ground stabilizer according to the present invention, and FIG. 5 is a longitudinal sectional view thereof.

  In the second embodiment, a female screw 17 is formed on the inner peripheral wall near the head of the anchor body 1, and a male screw 19 formed on the outer peripheral wall of the extension steel pipe 18 is screwed to the female screw 17. Thus, the extension steel pipe 18 can be connected to the head of the anchor body 1 so as to be adjustable in length. The extension steel pipe 18 is inserted into the through hole 11 of the bearing plate 10 and is fixed to the bearing plate 10 with a nut 13. Since the other parts are the same as those in the first embodiment, the same reference numerals are given and the description thereof is omitted.

  The second embodiment is also installed in the ground and used for fixing the inclined ground in the same manner as the first embodiment described above, but the anchor 1 is fixed to the bearing plate 10 via the extension steel pipe 18. Since the substantial length of the anchor body 1 can be freely changed by adjusting the screwing amount of the extension steel pipe 18, the hard and stable support ground 15 is formed as shown in FIG. Even in a non-landing state, the lengths of the heads of the extension steel pipes 18 projecting to the ground surface 7 can be made to be substantially the same, and the heads are trimmed for level adjustment. There is no hassle and workability is very good. Also in this embodiment, a fixing method as shown in FIGS. 17 and 18 can be used.

  In Examples 1 and 2 described above, the mesh-shaped cylinder 9 has a single-layer structure, but as shown in FIG. 7, a mesh-shaped outer cylinder having a filtration function made of metal or synthetic resin is used. The mesh-shaped cylindrical body 9 having a two-layer structure in which a porous tube 21 made of metal or synthetic resin is housed inside 20 may be used. In this case, the rigidity of the mesh-shaped cylindrical body 9 can be improved.

  FIG. 8 is a front view of Embodiment 3 of the inclined ground stabilizer according to the present invention, and FIG. 9 is a longitudinal sectional view thereof.

In the figure, 31 is a drill bit, which is made of a solid metal and has a cylindrical shape as described in detail in FIG. A truncated conical tapered portion 32 is integrally formed, and from the center of the end surface of the tapered portion 32, a connecting engagement protrusion 33 having a rectangular prism shape is formed.
In FIG. 10, reference numeral 34 denotes an extension shaft, which has a cylindrical shape having an outer diameter slightly smaller than that of the excavation bit 31, and is connected to the connection engagement protrusion 33 of the excavation bit 31 on the end surface thereof. A connecting engagement concave hole 35 is formed coaxially, and a male screw 37 for connecting to the excavation drill 7 is coaxially provided on the head side.

8 and 9, reference numeral 38 denotes a steel tube for wedge clamping, which has a cylindrical shape as described in detail in FIG. 11, and its inner diameter is slightly smaller than the small diameter portion of the tapered portion 32 of the excavation bit 31. A large number of slits 39 are formed from the front end side along the longitudinal direction, that is, the axial center.
A plurality of through holes 6 are formed in the peripheral wall 5, and male screws 12 are formed in a portion near the head.

  In FIG. 9, 9 is a mesh-like cylinder inserted into the internal space of the steel pipe for wedge fastening 38, and this mesh-like cylinder 9 is exactly the same as that of the first embodiment. The other parts are the same as those of the first embodiment, and the same reference numerals are given and the description thereof is omitted.

As described above, the third embodiment includes the excavation bit 31, the steel pipe 38 for tightening the wedge, the bearing plate 10, the mesh-like cylinder 9, and the like, and is used for fixing the inclined ground according to the following procedure.
That is, as shown in FIG. 12, the extension shaft 34 is connected to the tip of the drilling drill 36, and the connection engagement protrusion 33 of the drilling bit 31 is engaged with the concave portion 35 on the tip side of the extension shaft 34, The excavation bit 31 is fixed to the extension shaft 34, the excavation blade 3 of the excavation bit 31 is rotated, the rock 40 under the inclined ground is excavated, and the excavation hole 41 is formed. Since the bedrock 40 is usually at a position around 2 m from the ground surface 7, the extension shaft 34 has a length sufficient to allow the excavation bit 31 to reach it.

  In this way, when the excavation hole 41 is formed in the rock 40, the excavation drill 36 is separated and removed from the extension shaft 34, and as shown in FIG. Put on. In this state, the head end surface of the wedge-tightening steel pipe 38 is hit with a hammer or the like. Then, as shown by the arrow in FIG. 14, the wedge-clamping steel pipe 38 moves forward toward the bottom of the excavation hole 41, and a slit 39 is formed on the tip side of the wedge-clamping steel pipe 38. The wedge-clamping steel pipe 38 is forcibly expanded from the inside by the tapered portion 32 of the excavation bit 31 and fits into the gap between the outer periphery of the excavation bit 31 and the excavation hole 41. By the expansion force, the excavation hole 41 formed in the bedrock 40 is firmly wedged and acts as an anchor.

  In this state, the extension shaft 34 is pulled out, and the mesh-like cylinder 9 is inserted into the inner space of the wedge-clamping steel pipe 38 as shown in FIG. 9 and supported on the head of the wedge-clamping steel pipe 38 protruding from the ground surface 7. The through hole 11 of the platen 10 is inserted, the nut 13 is screwed into the male screw 12 of the wedge fastening steel pipe 38, this is tightened, and tension is applied to the wedge fastening steel pipe 38 to fix the inclined ground.

At this time, the peripheral wall 5 of the wedge-clamping steel pipe 38 is provided with a through hole 6, and the mesh-shaped cylinder 9 is inserted in the inner space of the wedge-clamping steel pipe 38. When an aquifer 8 containing groundwater is present at the top, the groundwater flows into the internal space through the through holes 6 and the mesh-shaped cylinder 9 of the steel pipe 38 for clamping, and the rise of the groundwater is It is blocked and the ground is stabilized.
Since the mesh-like cylinder 9 having a mesh smaller than the diameter of the through hole 6 is inserted inside the wedge-clamping steel pipe 38, the inside of the wedge-clamping steel pipe 38 is obtained by the filtering function of the mesh-like cylinder 9. Inflow of earth and sand into the basin is prevented, clogging does not occur, and groundwater flows in smoothly over a long period of time.

  The groundwater that has flowed into the wedge-clamping steel pipe 38 may stay in the wedge-clamping steel pipe 38 as it is. However, in order to further reduce the groundwater, the cap 14 is removed and the wedge-clamping steel pipe 38 is removed. It is also possible to insert a pipe from the open end of the head and actively suck up the water inside the steel pipe 38 for wedge clamping with a pump. As described above, in the third embodiment, the inclined ground can be fixed much more strongly than the conventional one by the anchor function of the steel pipe for wedge fastening 38 and the discharge of groundwater. Also in the third embodiment, a fixing method as shown in FIGS. 17 and 18 can be used.

  FIG. 15 is a front view of Embodiment 4 of the inclined ground stabilizer according to the present invention, and FIG. 16 is a longitudinal sectional view thereof.

  In the figure, 31 is a excavation bit, which is made of a solid metal and has a cylindrical shape. As shown in FIG. A frustoconical tapered portion 32 is integrally formed, and from the center of the end surface of the tapered portion 32, a connecting engagement projection 33 having a prismatic shape is formed in a coaxial manner.

  In FIGS. 15 and 16, 38 is a steel pipe for wedge fastening, 18 is a steel pipe for extension, and has a cylindrical shape whose inner diameter is slightly smaller than the small diameter portion of the tapered portion 32 of the excavation bit 31. A plurality of slits 39 are formed from the front end side along the longitudinal direction, that is, along the axial center. A plurality of through holes 6 are provided in the peripheral wall 5, and a female screw 17 is formed on the inner peripheral wall near the head. The female screw 17 is formed on the outer peripheral wall of the extension steel pipe 18. The extension steel pipe 18 is connected to the head of the anchor body 1 so as to be adjustable in length by screwing the male screw 19. The extension steel pipe 18 is inserted into the through hole 11 of the bearing plate 10 and is fixed to the bearing plate 10 with a nut 13.

  Reference numeral 9 denotes a mesh-like cylinder inserted into the internal space of the wedge-tightening steel pipe 38. The mesh-like cylinder 9 is exactly the same as that of the first embodiment. The other parts are the same as those of the third embodiment, and the same reference numerals are given and the description thereof is omitted.

  The fourth embodiment is also installed in the ground and used for fixing the inclined ground in the same manner as in the third embodiment described above. However, the wedge-clamping steel pipe 38 is connected to the bearing plate 10 via the extension steel pipe 18. Since the substantial length of the wedge-clamping steel pipe 38 can be freely changed by adjusting the screwing amount of the extension steel pipe 18, it is hard and stable as shown in FIG. Even if the supported ground 15 is in a non-landing state, the length of the head of the extension steel pipe 18 protruding to the ground surface 7 can be made to be substantially the same. There is no need to trim the head and workability is extremely good. In the fourth embodiment, a fixing method as shown in FIGS. 17 and 18 can be used.

  In Examples 3 and 4 described above, the mesh cylindrical body 9 has a single-layer structure. However, as shown in FIG. 7, a mesh outer cylinder 20 having a filtering function made of metal or synthetic resin is used. A mesh-like cylinder 9 having a two-layer structure in which a porous tube 21 made of metal or synthetic resin is housed may be used. In this case, the rigidity of the mesh-like cylinder 9 can be improved.

  It can be widely used in various civil engineering works, especially in the field of disaster prevention work.

The front view of Example 1 of the inclined ground stabilizer which concerns on this invention. Similarly, the longitudinal cross-sectional view. Similarly, the partial front view of the Example which provided multiple spiral blades 4. FIG. The front view of Example 2 of the inclined ground stabilizer which concerns on this invention. Similarly, the longitudinal cross-sectional view. Sectional drawing of the state which applied Example 2 to the ground of a non-land | ground state. The side view which notched and drawn a part of other Example of the mesh-shaped cylinder 9 which is one of the components of this invention. The front view of Example 3 of the inclined ground stabilizer which concerns on this invention. Similarly, the longitudinal cross-sectional view. FIG. 10 is a front view illustrating an extension shaft 34 and a drilling drill 36 used for the construction of the third embodiment separated from the drilling bit 31. The perspective view of the steel pipe 38 for wedge fastening which is one of the components of Example 3. FIG. FIG. 11 is a front view of a state in which the extension shaft and the excavation drill shown in FIG. The partial semi-longitudinal longitudinal cross-sectional view of the state immediately before driving Example 3 into the bedrock 40. FIG. Similarly, a semi-longitudinal longitudinal sectional view of a state before being driven into the bedrock 40 and withdrawing the extension shaft 34. The front view of Example 4 of the inclined ground stabilizer which concerns on this invention. Similarly, the longitudinal cross-sectional view. Sectional drawing which showed the fixation point of the anchor body 1 or the steel pipe 38 for wedge fastening in the case of attaching importance to a drainage function. Sectional drawing which showed the fixation point of the anchor body 1 or the steel pipe 38 for wedge tightening when emphasizing both a discharge function and a bearing function.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Anchor body 2 Blocking plate 3 Excavation blade 4 Spiral wing 5 Peripheral wall 6 Through hole 7 Ground surface 8 Aquifer 9 Mesh-shaped cylinder 10 Bearing plate 11 Through hole 12 Male screw 13 Nut 14 Cap 15 Support ground 17 Female screw 18 For extension Steel pipe 19 Male thread 20 Mesh outer cylinder 21 Porous pipe 31 Drilling bit 32 Tapered portion 33 Connection engagement protrusion 34 Extension shaft 35 Connection engagement concave drilling section 36 Drilling drill 37 Male screw 38 Clamping steel pipe 39 Slit 40 Rock 41 Drilling hole

Claims (7)

  It has a cylindrical shape, the tip opening is closed by the closing plate 2, the excavation blade 3 is fixed to the closing plate 2, and one or a plurality of spiral blades 4 are fixed to the outer periphery near the tip, A plurality of transmissions 6 are formed in the peripheral wall 5 and a steel pipe anchor body 1 having a male screw 12 formed on the outer periphery near the head; and a mesh smaller than the hole diameter of the through holes 6 of the anchor body 1 A mesh-like cylinder 9 inserted into the interior space of the anchor body 1; a through hole 11 through which the head of the anchor body 1 is inserted at the center; and the anchor body on the upper surface of the through hole 11 An inclined ground stabilizer comprising: a bearing plate 10 on which a nut 13 screwed to one male screw 12 is positioned; and a cap 14 that detachably closes the head opening end of the anchor body 1. .   It has a cylindrical shape, the tip opening is closed by the closing plate 2, the excavation blade 3 is fixed to the closing plate 2, and one or a plurality of spiral blades 4 are fixed to the outer periphery near the tip, A plurality of transmissions 6 are formed in the peripheral wall 5, and the steel pipe anchor body 1 is formed with a female thread 17 on the inner periphery near the head; a male screw that is screwed into the female thread 17 of the anchor body 1 An extension steel pipe 18 formed on the outer periphery; a mesh-like cylinder 9 having a mesh smaller than the diameter of the through hole 6 of the anchor body 1 and inserted into the internal space of the anchor body 1; A bearing plate 10 having a through-hole 11 through which the head of the anchor body 1 is inserted, and a nut 13 screwed into the male screw 19 of the extension steel pipe 18 is positioned on the upper surface of the through-hole 11; A head that detachably closes the head open end of the body 1 Slope Edition stabilizing member, characterized in that it consists and; flop 14.   The drilling blade 3 is attached to the distal end surface, and a truncated cone-shaped tapered portion 32 is formed on the head side. The tapered portion 32 is coaxial from the center of the end surface. An excavation bit 31 in which a connecting engagement projection 33 having a prismatic shape is implanted; a cylindrical shape, having an inner diameter slightly larger than the small diameter portion of the tapered portion 32 of the excavation bit 31, and on the tip side A plurality of slits 39 are formed in the axial direction from the head to the wedge, and a steel tube 38 for wedge fastening in which a male screw 12 is formed on the outer periphery near the head and a plurality of through holes 6 are formed in the peripheral wall 5; A mesh-like cylinder 9 having a mesh smaller than the diameter of the through hole 6 of the steel pipe for wedge clamping 38 and inserted into the inner space of the anchor body 1; a penetration through which the head of the anchor body 1 is inserted in the center A hole 11, and the anchor is formed on the upper surface of the through hole 11. An inclined ground comprising: a bearing plate 10 on which a nut 13 screwed to one male screw 12 is positioned; and a cap 14 detachably closing a head opening end of a steel pipe 38 for wedge fastening. Stabilizer.   The drilling blade 3 is attached to the distal end surface, and a truncated cone-shaped tapered portion 32 is formed on the head side. The tapered portion 32 is coaxial from the center of the end surface. An excavation bit 31 in which a connecting engagement projection 33 having a prismatic shape is implanted; a cylindrical shape, having an inner diameter slightly larger than the small diameter portion of the tapered portion 32 of the excavation bit 31, and on the tip side A plurality of slits 39 are formed in the axial direction from the head, a female screw 17 is formed on the outer periphery near the head, and a plurality of through holes 6 are formed in the peripheral wall 5; An extension steel pipe 18 formed on the outer periphery with a male screw 19 screwed to the female screw 17 of the wedge-clamping steel pipe 38; a mesh smaller than the diameter of the through hole 6 of the wedge-clamping steel pipe 38, and the anchor body A mesh-like cylinder 9 inserted into the interior space of 1; A bearing plate 10 having a through hole 11 through which the head of the anchor body 1 is inserted, and a nut 13 screwed into the male screw 12 of the anchor body 1 is positioned on the upper surface of the through hole 11; An inclined ground stabilizer comprising: a cap 14 detachably closing a head opening end of the steel pipe 38.   5. An inclined ground according to claim 1, wherein the mesh-shaped cylindrical body has a two-layer structure in which a metal or synthetic resin porous tube is inserted inside the mesh-shaped outer cylinder. Board stabilizer.   An inclined ground stabilization method characterized by fixing the inclined ground stabilizer according to claim 1 to the inclined ground from a substantially horizontal direction.   An inclined ground stabilization method characterized by fixing the inclined ground stabilizer according to claim 1 to the inclined ground from a substantially horizontal direction and obliquely upward.

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