JP2005171748A - Slope stabilizing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stabilize a slope by constructing the slope such as a slope face or inclined land having fear of collapse, while assembling on the slope. <P>SOLUTION: This slope stabilizing device adopts a constitution composed of a steel bar 1 fixed to a predetermined position of the slope A, a seat material 5 grounded on the slope by penetrating an aboveground projecting part of the steel bar through a central through-hole 4 and fixed to the steel bar via a proper fixing means 6, a belt-like bearing member 10 for connecting the respective inside ends via a proper connecting metal fitting 9 arranged in a dotted position on an upper surface circumferential line of this seat material, a presser material 17 for allowing a peripheral edge under surface to abut on an inside end part of the respective bearing members by penetrating the aboveground projecting part of the steel bar through a central through-hole 16, an anchoring nut 18 for lowering and sending the presser material by screwing in from the aboveground projecting end of the steel bar, and the elastic pressure applying function 19 arranged so that downward pressing force acts on the respective bearing members in response to the downward movement of the nut. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention attaches a pressure receiving material to the ground protruding end of a tension member that performs an anchor function fixed on an inclined surface such as an inclined slope facing an expressway or various facilities or an inclined slope that may collapse, The present invention relates to a slope stabilizer that transmits a tension force applied to a tension member to a slope to stabilize the slope.

  As shown in Patent Document 1, as a prior art of the slope stabilization method of the method of attaching a pressure receiving material to the ground protruding end of the tension member fixed on the slope and transmitting the tension applied to the tension member to the slope, The concrete pressure receiving block produced in the factory is carried to the work site.

  On the other hand, at each position where the pressure receiving block is fixed on the slope of the site, after drilling from the slope into the ground and inserting the tensile member into the drilled hole, the tensile member is inserted while injecting the grout material into the hole. To settle.

  Thereafter, the pressure receiving block is carried to the fixing position of the tension member, and the ground protruding end of the tension member is passed through the through hole of the center of the carried pressure receiving block.

Thereafter, the slope is stabilized while the pressure receiving block is pressed against the slope while the nut is screwed from the ground protruding end of the tension member.
JP-A-6-330526

  According to the slope stabilization method as described above, since the pressure-receiving block produced in the factory is used, it is bulky, requires a large space for storage, and is difficult to handle due to its large weight.

  Then, when a heavy machine is required to carry it to the site and carry the pressure-receiving block that has been carried to the fixing position, and when it cannot be carried using the heavy machine, it is slid using a wire or a rod that is pulled by a wire. In addition to this, it is necessary to pay attention to avoid collision and the pressure receiving block slid and the ground protruding end of the tension member that has been fixed.

  There is also a problem that a great deal of labor is required to allow the ground protruding end of the tension member to pass through the through hole of the pressure receiving block that has been carried.

  In particular, when a pressure receiving block of concrete product is placed on the slope, if the slope has irregularities, the entire lower surface of the protruding portion protruding in each direction (four directions) of the pressure receiving block does not contact the slope. That is, a contact portion and a non-contact portion can be formed by the unevenness.

  For this reason, the pressure applied to the slope by the entire lower surface of the pressure receiving block cannot be applied, resulting in a disadvantage that the intended slope stability is impaired.

  Furthermore, if there is a standing tree on the ground contact part of the protruding part of the pressure receiving block, the standing tree is cut out so as not to get in the way, so there is also a problem of deteriorating the environment.

  Therefore, the present invention is to provide a slope stabilizing device that solves each of the problems described above.

  In order to solve the above-described problems, the present invention provides a steel rod fixed at a predetermined position on a slope, and a ground through-hole projecting portion of the steel rod is passed through a central through hole, and is grounded on the slope. A seat member fixed through an appropriate fixing means, and a belt-like bearing member in which respective inner ends are connected through appropriate connecting fittings provided at scattered positions on the upper surface circumferential line on the seat member side, A presser material in which the ground protruding portion of the steel rod is passed through the central through hole and the lower peripheral edge is in contact with the inner end portion of each supporting member, and the presser material is screwed in from the ground protruding end of the steel rod. A slope stabilizer comprising a fixing nut to be transported and an elastic pressure imparting function provided so as to apply a downward pressing force to each supporting member as the nut moves downward is employed.

  Further, the opposing tip ends of the supporting members that radiate from the adjacent steel rod side are connected through appropriate connecting means, or a water absorption passage through which the lower surface penetrates the supporting member and a fixing member for the spray material on the upper surface are provided. Alternatively, a bowl-shaped bulging portion that fits into the recessed portion of the slope may be provided on the lower surface of the seating material.

  Further, the presser member is composed of an annular seat plate for grounding and an inverted saddle-like plate placed on the annular seat plate with the sliding movement stopped by a stopper, and is formed in a central through hole of the inverted saddle-like plate. The structure which penetrated the steel rod, and the structure which latched the both ends of the tension member to the said right and left high seat material side and the low seat material side may be employ | adopted.

  As described above, according to the slope stabilizing device of the present invention, the slope is stabilized while being assembled on the slope, so it is necessary to carry in the secondary concrete product (by factory production) and to install heavy equipment and much labor after carrying it in. The number of pressure bearing members and the pressure position can be freely increased or decreased according to the stability conditions of the slope such as three directions or four directions. be able to.

  And since the bearing member is pressurized by the elastic pressure imparting mechanism, the bearing member can follow the ground fluctuation, and the bearing member can be eliminated. Therefore, even if a standing tree is present at the position where the bearing member is arranged, the slope is stabilized without cutting the standing tree and the environment is not impaired.

  In addition, since the opposite ends of the supporting members of the adjacent steel rods are connected by the connecting means, there is no lifting of the tip of the supporting member, and there is an effect of remarkably stabilizing the slope by increasing the strength of the supporting member, The slope can be greatly stabilized by connecting under tension between the seat members on the tension member.

  Furthermore, the spraying material sprayed on the bearing member can be fixed to the fixing portion well and stably, and the water on the slope can be absorbed into the spraying material from the water absorption path, which is effective for greening.

  Embodiments of the present invention will be described with reference to the accompanying drawings.

  In the first embodiment of the present invention, as shown in FIGS. 1 to 5, a steel bar 1 having an upper portion protruding upward from the slope A is fixed at a predetermined position of the slope A requiring stability. Yes.

  As shown in FIG. 9, the steel rods 1 are fixed so that the upper part is exposed to the ground in the holes 2 obtained by the drilling while drilling from the slope A toward the ground. In addition to inserting the rod 1 and filling the grout material 3 in the hole 2, a drill is attached to the tip of the steel rod 1 as shown in FIG. 2, and the steel rod 1 is fixed while rotating the steel rod 1. Sometimes.

  Next, the ground protruding portion of the steel bar 1 is penetrated through the central through hole 4 to ground the seating material 5 on the slope A, and the steel bar 1 is pressed through the fixing means 6 (pressing the seating material 5 against the slope A). To fix).

  The fixing means 6 employs a method in which a nut is screwed and fixed from the ground protruding end of the steel rod 1 in the illustrated case, but may be fixed using a fixing metal fitting such as a clamp metal fitting.

  Then, as shown in FIG. 2, a bowl-shaped bulging portion 7 that protrudes downward from the central portion of the seating member 5 is provided, and the bulging portion 7 is fitted into the recessed portion 8 of the slope A.

  Then, the seating material 5 can be fixedly positioned with respect to the slope A and stabilized at a fixed position, and there is no slip of the seating material 5 with respect to the slope A, so that the steel bar 1 is not subjected to lateral stress.

  In addition, as shown in FIG. 9, the film | membrane 61 by plating, for example is provided in the predetermined downward range from the lower surface of the bulging part 7 of the steel bar 1, and the coupling | bonding of the steel bar 1 and the grout material 3 may be eliminated ( This is because the expansion and contraction of the steel rod 1 is not hindered.

  A steel rod 1 without a drill at the tip (as shown in FIG. 9) may be used.

  Further, connecting metal fittings 9 are provided at dotted positions on the upper surface circumferential line on the side of the seating material 5, and each supporting member 10 arranged on the connecting metal fitting 9 to extend in a desired direction and overlaps the slope A. Connect the inner ends of.

  As shown in FIGS. 2 and 3, the connecting fitting 9 includes two upper and lower disks 12, 12 for fitting a central through hole 11 from the ground protruding end of the steel bar 1, and both the disks 12, 12. Is formed of a through hole 13 provided at equal intervals around the entire circumference of the peripheral portion of the rim, and a fastener 14 composed of a bolt and a nut inserted through the through hole 13. The end portion of the support member 10 is interposed, and the fastener 14 is passed through and connected to the through hole 15 at the end of the support member 10, and the lower disk 12 is placed on the seat member 5. However, other types of connecting means, for example, a method (not shown) in which the through hole at the end of the support member 10 is fitted to the projecting shafts arranged in a scattered manner on the seat member 5, or as shown in FIG. As described above, the disk 12 is placed so that the steel rod 1 passes through the center through hole (not shown) and the upper surface opening of the bulging portion 7 is closed. The bolt 67 inserted through the TanToruana may be adopted a method of connecting by screwing into the screw hole 68 of the disc 12.

  In short, what is necessary is just to connect the end of the bearing member 10 arranged (arranged) in the four directions of FIG. 4 and other radial (for example, as shown in FIG. 5) directions to the seating material 5 side.

  Further, on the ground projecting side of the steel bar 1, there is provided a presser member 17 that penetrates the steel bar 1 through the central through hole 16 and presses the upper end surface of each supporting member 10 with the lower peripheral edge surface. The presser material 17 is moved down by tightening the nut 18 screwed from the projecting end of the ground 1.

  At that time, an elastic pressure imparting function 19 is provided to apply a downward pressing force (arrow direction (A) in FIG. 2) to each supporting member 10 as the nut 18 moves downward (tightening).

  In the case shown in FIG. 2, the above-described elastic pressure imparting function 19 is fitted to the steel rod 1 and the coil spring 65 is interposed between the nut 18 and the presser member 17, but instead of the spring, as shown in FIG. The disc spring 66 and an elastic deformation material (spring steel) that compresses and deforms against the restoring force of the presser material 17 when the presser material 17 descends are provided on the periphery of the presser material 17 (pressing contact portion of the support member 10). Sometimes it is possible to achieve a goal.

  In addition, although the presser material 17 was formed in the shape of a metal inverted bowl in the case of illustration and provided the penetration window 20 (for weight reduction etc.) in the surrounding wall at equal intervals, a shape is not limited.

  Further, as the fixing means 6 for fixing the seat member 5 to the steel rod 1, as shown in FIG. 9, the bottom portion in the bulging portion 7 is filled with grease 21, and then the central through hole in the bulging portion 7. 4, the steel bar 1 is penetrated and the cover plate 22 is dropped. Then, the nut 23 screwed on the upper side of the cover plate 22 of the steel bar 1 is screwed in, and the periphery of the cover plate 22 pressed downward is bulged out. Although the inner surface of 7 is press-contacted, any of the fixing methods shown in FIGS. 2 and 9 may be adopted.

  Further, as another example of the presser member 17, as shown in FIGS. 9 and 10, as shown in FIG. 9 and FIG. 10, a grounding annular seat plate 62, and an inverted saddle placed on the annular seat plate 62 by stopping the sliding movement by a stopper 63. It consists of two parts with the shape plate 64, and the factor is to reduce weight so that handling (carrying in) becomes easy. Of course, the penetrating plate 64 is provided with the through-hole 20 to reduce the weight.

  The stopper 63 is formed by a protrusion protruding upward at the upper surface dotted position of the annular seat plate 62, and the peripheral edge of the bowl-shaped plate 64 contacts or faces the stopper 63.

  A through-hole 16 of the steel rod 1 is provided at the center of the bowl-shaped plate 64.

  In addition, the bearing member 10 is formed of a single tough plate material 41 (with a steel plate or the like) as shown in FIG. 8, but if it is tougher, the plate thickness is increased, or as shown in FIG. In addition, a plurality of plate materials 41 may be used by being overlapped and integrated by spot welding or the like.

  If comprised as mentioned above, the support member 10 which connected the terminal to the connection metal fitting 9 of the seating material 5 and is arranged radially (three directions, four directions, etc.) will be lowered by screwing in the nut 18. In addition to being pressed down by the presser material 17, each supporting member 10 is pressed against the slope A by pressing and the slope A is stabilized.

  Moreover, since each supporting member 10 is pressed down by the elastic pressure imparting function 19, the supporting member 10 moves up and down following the ground change (on the slope A).

  Therefore, even if an unreasonable force is applied to the support member 10, the connecting portion is not damaged, and the pressure applied by the support member 10 can be applied to the slope A in a stable state.

  In 2nd Embodiment of this invention, as shown in FIG.6 and FIG.7, the opposing ends of the bearing member 10 extended from the adjacent steel bar 1 are connected through the suitable connection means 31. As shown in FIG.

  Although the turnbuckle 32 is used as the connection means 31 in the illustrated example, the connection means 31 may be connected by a clamp metal fitting or a crimp fitting.

  Then, the stabilization of the slope A is significantly improved.

  In the third embodiment of the present invention, as shown in FIGS. 1, 3, and 8, the supporting member 10 is formed of a tough plate material 41, for example, a steel plate, and the plate material 41 has front and back surfaces penetrating. It is composed of a large number of water absorption paths 42 and a fixing portion 43 for the spray material B.

  The fixing unit 43 is formed by providing grooves on both sides. However, for example, the both side edges of the plate material 41 may be provided upright. In short, the well-known spraying material B (for example, fertilizer, water retaining material, greening on soil) For example, the seeds and the rubbing seeds mixed in) are easily fixed on the upper surface of the plate material 41 (to easily remain).

  The connecting through-hole 15 provided at the end of the bearing member 10 is provided with a groove 45 whose lower surface is opened on the center line connecting the back end and the end of the plate 41 in the case shown in FIG. A protruding piece was welded to the end of the steel bar 44 fitted and welded, and provided on the protruding piece. As shown in FIGS. 9 and 11, a nut 70 to which a protruding piece 69 was attached by welding was attached to the steel rod. It can also be screwed into the end of the material 44.

  In the fourth embodiment of the present invention, as shown in FIG. 13, both ends of the tension member 71 are locked to the left and right high seat members 5 and the low seat members 5.

  As the tension member 71 in the illustrated case, as the side of the seating member 5 as the locking means 74, the seating member 5 or the illustrated disk 12 (in the illustrated case, connected to the disk 12 side, A pin and a ring-shaped part fitted to the pin, or a ring-shaped part and a bolt inserted into the ring-shaped part and screwed into the seat member or a fastening metal fitting passed through the seat member Each of the ribs 72 is engaged with the outer end (one end) and the turnbuckle 73 is screwed into the threaded portion of the inner ends (the other end) of the two ribs 72. It may be.

  Then, the stabilization of the slope A can be significantly improved.

The top view which shows 1st Embodiment of this invention Longitudinal side view showing the main part Same part cutout enlarged plan view Plan view showing the arrangement of bearing members The top view which shows other arrangement | positioning of a bearing member The top view which shows the front-end | tip connection of the bearing member which shows 2nd Embodiment Partially cut away enlarged side view showing the main part Longitudinal enlarged front view of a bearing member showing a third embodiment Longitudinal front view showing another example of presser material Top view of presser foot Plan view of bearing member Longitudinal enlarged front view of bearing member The top view which shows 4th Embodiment

Explanation of symbols

A slope B spraying material 1 steel rod 2 hole 3 grout material 4 through hole 5 seating material 6 fixing means 7 bulging part 8 recessed part 9 coupling metal 10 pressure bearing member 11, 15 through hole 12 disc 13 through hole 14 tightening Tool 16 Through-hole 17 Presser material 18 Nut 19 Elasticity imparting function 20 Transmissible window 21 Grease 22 Lid plate 23 Nut 31 Connecting metal fitting 32 Turnbuckle 41 Plate material 42 Water absorption path 43 Fixing part 44 Steel bar material 45 Groove 61 Membrane 62 Ring seat plate 63 Stopper 64 Cage plate 65 Coil spring 66 Belleville spring 67 Bolt 68 Screw hole 69 Projection piece 70 Nut 71 Tension member 72 Fitting material 73 Turnbuckle 74 Locking means

Claims (6)

A steel bar fixed at a predetermined position on the slope, a grounding portion that penetrates a ground protruding portion of the steel bar through a central through hole, and is grounded to the slope, and a seating material fixed to the steel bar via an appropriate fixing means, A belt-shaped bearing member in which the inner ends are connected via appropriate connecting fittings provided at dotted positions on the upper surface circumferential line on the seating material side, and a ground protruding portion of the steel rod in the central through hole Presser material that penetrates the bottom surface of the periphery and abuts against the inner end portion of each of the bearing members, a fixing nut that is screwed from the ground protruding end of the steel rod and descends the presser material, and a downward movement of the nut A slope stabilizer comprising an elastic pressure imparting function provided to apply a downward pressing force to each of the bearing members. 2. The slope stabilizing device according to claim 1, wherein opposing tip ends of the supporting members that radiate from the adjacent steel rod side are connected through appropriate connecting means. The slope stabilizing device according to claim 1, wherein a water absorption path having a lower surface penetrating the pressure bearing member and a spraying material fixing portion on the upper surface are provided. The slope stabilizing device according to claim 1, wherein a flange-like bulging portion that fits into a recessed portion of the slope is provided on the lower surface of the seating material. The presser material is composed of an annular seat plate for grounding and an inverted saddle-like plate placed on the annular seat plate by stopping the sliding movement by a stopper, and a steel rod is inserted in the central through hole of the inverted saddle-like plate The slope stabilizer according to claim 1, wherein the slope stabilizer is made to penetrate. The slope stabilizing device according to claim 1, wherein both ends of the tension member are engaged with the left and right high seat members and the low seat members.

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