TWI599697B - Steep slope stabilization method of steel pull set method - Google Patents

Description

Steel cable pulling method for inclined surface stability chemical method

The present invention relates to a natural bevel stability chemical method for securing a slope with a bearing plate attached to a majority of anchor piles and anchor pile heads, and a steel cable connecting the heads of the anchor piles, especially regarding the inability to use heavy machinery. The method of pulling the steel cable by human force on the inclined surface.

It is known that in the bevel stability chemical method, there is a method of further increasing the stability of the slope by connecting the heads of the anchor piles with steel wires (Patent Document 1 and others). That is to say, in addition to the reinforcing effect of the anchor pile and the pressing effect of the soil block of the bearing plate, the pulling effect of the cable rope on the anchor pile during the deformation of the inclined surface, and the anchoring effect on the local anchor The load dispersion effect of the pile load dispersion also plays a role, so that the slope collapse can be effectively suppressed or reduced.

Moreover, in the case where the anchor pile is provided on the inclined surface, there are a case where the anchor pile is arranged in a lattice shape (such as a vertical and horizontal arrangement), and a triangular configuration (the mutual positional relationship of each anchor pile is located at the apex of the triangle) In the case of a triangular configuration, as shown in FIG. 1, the anchor pile 1 is disposed in a triangular configuration of the apex of the triangle which is inclined in the oblique direction of one side, and also at least the anchor pile in the downward direction of the slope is completed. The connection between the anchor piles 1 is connected by a steel cable 2 (Patent Documents 2, 3, etc.). In this case, the cable is generally pulled in a ring shape around each of the three anchor piles arranged in a triangle adjacent to each other at intervals. In Fig. 1, 3 is a bearing plate, and 4 is a buckle.

In addition, it is described that in the manual work of the inclined surface of the heavy machinery, the tightness of the steel rope after the use of the buckle is achieved by using a detachable tensiometer to obtain the appropriate steel cable. Force (Patent Document 4).

In the slope stability chemical process of the above-mentioned prior art, it is described that a plurality of anchor pile heads are provided with a steel wire and a buckle connected to the steel wire is used to tighten the steel wire to apply tension. However, the technique of tightening the cable to the length of the degree of the buckle can be adjusted before the rotation of the turn button is adjusted, and is not particularly described.

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Paragraph No. [0005] of Japanese Patent Laid-Open No. Hei 9-111761, Fig. 2

[Patent Document 2] Paragraph No. [0002] of Japanese Patent Laid-Open No. 2002-088769, Fig. 2, and the like

[Patent Document 3] Paragraph No. [0002] of Japanese Patent Laid-Open No. 2002-173939, Fig. 1, etc.

[Patent Document 4] Japanese Patent Laid-Open No. 2007-262734

The buckle used in the bevel stability chemical method is the same as the general buckle, so the adjustment length is not long. Therefore, although the length can be slightly adjusted in order to force the tension of the cable, the length of the adjustment is limited to the degree of tension imparted, and the adjustment is not large at the stage of pulling the cable into a ring shape around the anchor piles. The function of slack. Therefore, before the cable is tightened by the turn-around, it is necessary to sufficiently tighten the length of the cable to be fixed by a steel cable clamp, and the slack before the tightening is required to be sufficiently removed. However, in the bevel stability chemical method, it is required to tighten the length of the steel cable with a diameter of 5 to 15 mm and a length of 5 to 15 m to reduce the slack, which requires a large force, which is difficult to carry out by manual work, and The construction site is a steep slope, so it is a labor-intensive operation.

In this way, the operation of tightening the length of the cable before the large tension of the cable is applied to the buckle can be achieved, and the chemical method can be stabilized by the slope which is simply operated by the steep slope. The method of pulling steel cables.

SUMMARY OF THE INVENTION The object of the present invention is to enable the cable slack removal operation performed before the large tension of the cable is imparted to the cable as described above by the bevel stabilization chemical process, which can be easily carried out by manpower on a steep slope.

The steel cable pulling method of the slope stability chemical method according to the first aspect of the present invention is characterized in that: three of the anchor piles adjacent to each other at intervals are arranged in a triangular arrangement at the apex of the triangle to set a plurality of anchor piles on the natural slope And a pressure receiving plate is attached to the head of each of the anchor piles, and is fastened to provide a bearing pressure to the foundation, and then a looped wire is connected by a turn button having a connecting bolt at both ends, and is connected. Between the anchor piles of each of the three triangular arrangements, and before the steel cable is disposed on the inclined surface, the one end side of the steel cord is firstly joined to the front body portion of the swing buckle or not screwed together. a connecting portion of the connecting bolt on one end side of the swivel; the cable is in a temporary annular connection state in which the swivel is located between two anchor piles in a downward direction of the inclined surface, and the cable is inclined upwardly The one end side is extended downward along the inclined surface by the connecting portion of the connecting bolt on the other end side of the lower end side of the swinging portion which is screwed to the connecting bolts on both sides, and the wire rope is extended downward And the other end side of the cable extending downward along the oblique surface is pulled down and tensioned to remove the slack of the looped cable; and then the above-mentioned steel cable is The other end side is integrally coupled to the connecting portion of the connecting bolt on the other end side of the swivel; and then the swivel is rotated to give the cable tension.

Here, the obliquely downward direction is a direction in which all the positions on the inclined surface are higher toward the upper side or the lower side than the horizontal direction.

According to a second aspect of the invention, in the cable pulling method of the first aspect, the temporary connecting structure is formed on the other end side of the wire, and the temporary connecting structure passes through the connecting bolt on the other end side of the buckle The cable end portion behind the connecting portion is coupled to the connecting portion so as to be disconnected, and the cable is used to make the cable form a temporary annular connection state in which the turn is formed in a ring shape.

According to a third aspect of the invention, in the cable pulling method of the second aspect, the other end side of the cable is integrally coupled to the connecting bolt of the other end side of the turntable, and the temporary connecting structure is released. The main connection structure is a structure in which the other end side of the cable is fixed to the overlapping portion of the cable end by the connecting portion of the connecting bolt; and the overlapping portion is fixed by the quilting tool after passing through the overlapping portion The pinch pipe is quilted, or the overlapping portion is fastened by a steel cable clamp, or the overlapping portion is braided.

The steel cable pulling method according to any one of claims 1 to 3, wherein the position of the above-mentioned turning buckle between the two anchor piles is located between two anchor piles inclined in a slope direction . Here, the oblique direction of the slope is the direction in which the inclination is the largest in the position of the slope.

According to a second aspect of the present invention, in the cable pulling method of the second aspect, the temporary connecting structure of the other end portion of the cable is attached to the connecting portion of the connecting bolt on the other end side of the buckle, and the The overlapping portion of the cable end portion which is folded back by the above-mentioned connecting portion of the connecting bolt is inserted into the pinch tube, and the opposite side of the connecting portion is temporarily fixed by the tape or the linear body from the pinch tube of the overlapping portion. .

According to a sixth aspect of the present invention, in the cable pulling method of the fifth aspect, the shackle of the connecting portion of the connecting bolt on the other end side of the elastic bolt buckle is attached The size is larger than the size of the annulus of the corresponding steel cable diameter which is used as the annulus of the one end side of the steel cord.

According to the invention of claim 1, in the case where the steel cable is connected between the three anchor piles arranged in a triangular shape, the steel cable is brought into a temporary annular connection state in which the above-mentioned swing buckle is located between two anchor piles in the downward direction of the inclined surface, and the steel cable is The other end side of the obliquely facing upper side is formed by screwing the joint portion of the connecting bolt of the other end side of the swinging surface of the above-mentioned turning buckle of the connecting bolt on both sides, and extending downward along the inclined surface, and the steel cable is interposed by the above-mentioned turning buckle. ring.

As described above, in the temporary loop-connected state, the other end portion of the cable is in a state of extending downward along the oblique surface by the joint portion of the joint bolt on the other end side of the swing buckle.

Further, if the other end portion of the state in which the cable is inclined downward is pulled down along the inclined surface, the cable is tightened to remove the slack of the cable. Thus, the work of tightening the cable to remove slack can be performed by pulling the wire to the lower side of the slope.

The slope of the construction bevel stability chemical method is generally a steep slope. In the pulling operation of pulling the steel cable to the lower side of the inclined surface, in addition to the traction force brought by the wrist force of the operator, the weight of the operator is also used as the traction force due to the steep slope. It works, so it can pull and tighten the cable with a large traction.

In this way, even if the steep slope of the heavy machinery cannot be utilized, the cable can be tightened manually to remove the slack.

According to the second aspect of the invention, when the cable end portion is formed in a temporary connection structure in which the cable end portion is detachably coupled to the connecting portion of the connecting bolt on the other end side of the buckle, the steel cable is placed in advance. After the three anchor piles are pulled into a ring-shaped temporary loop-connected state, if the temporary joint structure is released, the other end side of the cable extends in a state below the slope at this stage, and the cable can be pulled immediately. The other end is tightened to work well.

As shown in the fourth aspect of the invention, the position of the swing buckle is in the direction of the inclined slope of the two anchor piles. In the case of the middle, since the weight of the worker is the most important as the traction force in the respective directions of the lower side of the inclined surface, the wire rope pulling method of the present invention can function most effectively.

According to the fifth aspect of the invention, the overlapping portion that is folded back by the connecting portion of the connecting bolt attached to the connecting portion of the connecting bolt is passed through the pinch tube, and then the tape or the linear body is temporarily formed in the overlapping portion. In the method of connecting the structure, not only the operation of releasing the temporary connection structure is simple, but also the operation of the cable end portion can be officially connected in a substantially constant state after the connection is released, and the workability is extremely excellent.

As shown in the fifth aspect, in the case where the temporary connection structure of the other end portion of the cable is a structure in which the loop and the pinch tube are used, when the cable is tightened in order to remove the slack of the cable, although the cable is finally passed, the cable end is finally passed. The pinch tube behind the overlapping portion is pressed in close to the side of the ankle ring. However, since the horseshoe shape of the ring corresponding to the size of the cable diameter used is small, it is necessary to press the pinch tube to the side of the ankle ring. The power of the big, very difficult to carry out. However, as shown in the sixth aspect of the invention, since the size of the loop of the joint portion of the joint bolt attached to the other end side of the swing buckle is larger than the loop size of the corresponding steel cable diameter, the clamp can be clamped with a small force. The tube is pressed into the side of the ankle ring, and the tube can be simply pressed into the side of the ankle ring by human.

1‧‧‧anchor pile

2‧‧‧Steel cable

2A‧‧‧Steel cable

2a‧‧‧Under the extension

2a’‧‧‧ Steel cable length section

2B‧‧‧Steel cable

2C‧‧‧Steel cable

2D‧‧‧Steel cable

2E‧‧‧Steel cable

3‧‧‧ Bearing plate

4‧‧‧WD

4a‧‧‧ (transfer) body

4b‧‧‧(scrolled) bolt on one end side (link bolt)

4b ₁ ‧‧‧ (on the end of the bolt) ring (connection)

4c‧‧‧(spinning) bolt on the other end side (link bolt)

4c ₁ ‧‧‧ (the bolt on the other end side) ring (connection)

5‧‧‧ (bearing plate 3) bottom plate

5a‧‧‧ center hole

6‧‧‧Cylinder

7‧‧‧Strengthened ribs

7a‧‧‧Tongso hole

8‧‧‧Washers

9‧‧‧ nuts

10‧‧‧Sturdy foundation

12b‧‧‧(one end of the cable)

12c‧‧‧ (the other end of the cable is B)

12c'‧‧‧ (the other end of the cable is B)

13b‧‧‧ (on the one end of the cable)

13c‧‧‧ (the other end of the cable is B)

14‧‧‧ (part of the temporary connection structure) PVC insulation tape or linear body

15‧‧‧Official link construction

16‧‧‧ Temporary Link Construction

16’‧‧‧ Temporary Link

17‧‧‧(PVC cable for fixing the length of the cable)

One side of A‧‧‧ steel cable

A’‧‧‧ one end of the buckle

B‧‧‧The other end of the cable

B’‧‧‧Transfer the other end

X‧‧‧ lower side of the slope

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a slope of a steel strand pulling method according to an embodiment of the present invention after a construction slope safety method.

Figure 2 is a longitudinal cross-sectional view of a portion of the bevel of Figure 1.

Fig. 3(a) is an enlarged view of a portion of the anchor pile 1 of the first portion of Fig. 1, and (b) is a cross-sectional view.

Fig. 4 is an enlarged view of a portion of Fig. 1 showing a state in which the heads of three anchor piles arranged in a triangular shape are connected by one wire.

Fig. 5 (a) is a view showing a straight line state in which the steel wire (the wire rope with the turn button) used in the above embodiment is omitted, and (b) is an enlarged view of the vicinity of the body portion of the turn button of the (a). (c) is an enlarged view of the vicinity of the swivel when the steel cord of (a) is in a temporarily loop-connected state.

6 to FIG. 11 are views showing the operation sequence of the heads of three anchor piles arranged in a triangular shape by one wire as shown in FIG. 4, and FIG. 6 is a view showing three anchor piles for pulling the steel cable to the triangular boundary. A diagram of the initial stages of the operation.

Figure 7 is a diagram showing the subsequent steps of Figure 6, which further pulls the cable to the lower anchor pile, so that the bolt (link bolt) on one end side of the cable is close to the swing body, which shows that the cable is turned into a buckle. A diagram of the stage before the temporary loop connection state.

Fig. 8 is a view showing a step subsequent to the step of Fig. 7 in which the bolt on one end side of the wire is screwed to a state in which one end side (upper side) of the swing body is temporarily looped.

Fig. 9 is a view showing a step of the subsequent step of Fig. 8 showing the removal of the polyvinyl chloride insulating tape which is a part of the temporary joining structure of the ring portion (joining portion) of the bolt which temporarily connects the other end side of the cable to the other end side of the turn button. And cancel the map of the stage after the temporary link.

Figure 10 is a view showing the subsequent steps of Figure 9, showing that the other end portion of the steel cable which is released from the above-mentioned temporary connection is inclined downward, and is pulled and tightened by the human hand to the oblique direction of the inclined surface, and the slack of the cable is removed. The stage of the map.

Figure 11 is a view showing a step subsequent to the step of Fig. 10, showing a part of the temporary joint structure of the ring portion of the bolt temporarily connecting the other end of the cable to the other end side of the turn button by a quilting machine, and the pinch tube The other end side forms a formal joint structure and is officially joined, and the remaining length of the steel cord extending below the inclined surface is fixed by a polyvinyl chloride insulating tape (following, if the rotary turn buckle imparts a specific tension to the cable, it becomes The job end state of Fig. 4).

Fig. 12 is a view showing various types of the elastic bolt portion in the steel cord used in the wire rope drawing method of the present invention, (a) showing the steel wire used in the above embodiment, and (b) to (e) respectively showing different types. By.

Figs. 13(a) to 13(e) are diagrams showing the state of the stage of Fig. 7 in the case where the wire rope pulling operation is performed using each type of steel wire of Figs. 12(a) to (e), respectively.

Figure 14 shows the position of the swivel between the two anchor piles inclined with respect to the inclined plane For those with angles, it corresponds to the diagram of Figure 4.

Fig. 15 is a view showing another embodiment of a loop for connecting the other end side of the cable to the other end side of the turn button.

Hereinafter, the form of the wire rope pulling method for carrying out the slope stability chemical method of the present invention will be described with reference to the drawings.

[Example 1]

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a method of applying a steel cable according to an embodiment of the present invention, and a slope of a slope which is stabilized by a chemical method; Fig. 2 is a longitudinal sectional view showing a portion of a slope of Fig. 1. Fig. 3(a) is an enlarged view of a portion of the anchor pile 1 of the first portion of Fig. 1, and is a cross-sectional view taken along line (b).

The inclined surface stability chemical method applicable to the steel cable drawing method of the present invention is as shown in FIG. 1 and FIG. 2, and the plurality of anchor piles 1 are arranged in a triangle arrangement in which the three anchor piles 1 adjacent to each other are located at the apex of the triangle. Provided on a natural inclined surface, and a bearing plate 3 is attached to the head of each anchor pile 1 and fastened to give a bearing pressure to the foundation, and then three anchor piles 1 each arranged in a triangular shape are A method in which one end of the two ends of the loop is connected by a swivel 4 to form a loop. In addition, the so-called "connection between the anchor piles 1 by the steel wire" is not limited to the case where the steel cable 2 is directly fastened to the anchor pile 1, and also includes the direct engagement to the pressure receiving plate 3 via the bearing plate. 3 link situation. The anchor pile 1 is inserted into a particular depth of the solid foundation 10 located below the surface of the surface layer where the sliding occurs.

As shown in FIG. 3, the pressure receiving plate 3 of the illustrated example is a vertical fixing of the cylinder 6 to the central portion of the substantially triangular-shaped bottom plate 5 having the central hole 5a through which the anchor pile 1 passes, and the reinforcing rib 7 is fixed to The three-way construction of the bottom plate 5. The reinforcing rib 7 has a hole 7a through which the wire 2 passes. The cylinder 6 of the bearing plate 3 is placed over the head of the anchor pile 1, and a gasket 8 is arranged to screw and fasten the nut 9 to the threaded portion of the head of the anchor pile 1 to give a bearing pressure to the foundation.

Fig. 4 is an enlarged view of a portion of Fig. 1 showing three anchor piles 1 arranged in a triangular shape, which are connected by a wire rope 2 to form a ring shape, and then rotated by a rotary buckle 4 A diagram of the state of the tension of the cable 2. The connecting bolt 4b of one end side A' of the swivel 4 is coupled to one end side A of the cable 2, and the connecting bolt 4c of the other end side B' of the swivel 4 is coupled to the other end side B of the cable 2, so that the cable 2 is The ring shape (the connecting bolts 4b and 4c of the following buckle 4 are only roughly referred to as bolts 4b and 4c).

The swivel 4 bolts 4b and 4c of the embodiment are respectively screwed to one end side A' and the other end side B' of the tubular main body portion 4a, and both bolts 4b, 4c have annular portions 4b ₁ and 4c. _a ring of bolts used in the present invention is based at least 4 turn fastening bolt the other end side of 4C, the ring having an annular portion 4c ₁ of the first connecting portion as a bolt, or a hook having a hook portion of the stud Come as a link.

The operation sequence of the state of Fig. 4 which gives the tension of the cable 2 will be described.

Fig. 5(a) shows the state of the steel cord 2 used in the present embodiment before the cable pulling operation. Fig. 5(b) is an enlarged view of a portion of the other end side B of the cable 2 of Fig. 5(a), and Fig. 5(c) is a screwing of the bolt 4b coupled to one end side A of the cable 2 to the cable When the other end B side of the B-linking buckle 4 is in a temporary loop-connected state, the vicinity of the turn-around is enlarged.

As shown in Fig. 5(a), the cable 2 of the present embodiment is integrally joined to one end side A of the cable 2 and a bolt 4b detached from one end side A' of the swivel 4, and the other end side B of the cable 2 is snail The bolt 4c of the other end side B' of the swivel 4 is temporarily connected.

In the present invention, before the pulling operation of the wire rope 2 is started, as described above, the one end side A of the wire rope 2 and the bolt 4b of the one end side A' of the turnbuckle 4 are previously connected in advance, but the following, regardless of the turn The bolt 4b of the one end side A' of the buckle 4 is not screwed to the main body portion 4a of the swing buckle 4 or is screwed, and both cases are possible.

A structure in which one end side A of the cable 2 and the bolt 4b of one end side A' of the swivel 4 are integrally coupled, as shown in the drawing, is attached to the ring portion 4b ₁ of the bolt 4b of the one end side A' of the swivel 12b, so that one end of the cable 2 A follow overlapping portion of the ring 12b and is folded back Down passed through the annular portion 4b of the bolt _{4b. 1} (the cables and the overlap to be folded, two overlap portion) 13b through the pinch The configuration is such that the pinch tube 13b is compressed and the structure is officially connected. Further, the pinch tube 13b is previously covered on one end side A of the steel cord 2 before following the loop 12b. As described above, in the present embodiment, the case where the connection is unremovable is referred to as "official connection". Here, since the pinch tube 13b is compressed, the connection between the one end side A of the wire rope and the ring portion 4b ₁ of the bolt 4b of the one end side A' of the turnbuckle cannot be released.

The temporary connection structure 16 that temporarily connects the other end side B of the cable 2 and the ring portion 4c ₁ of the bolt 4c of the other end side B' of the swivel 4 to the other end side B' of the buckle The ring portion 4c _{1 of the} bolt 4c is attached to the ring 12c such that the other end side B of the wire is folded along the ring portion 12c of the bolt 4c by the ring portion 4c ₁ and the overlap portion is disposed by the pinch tube 13c. A structure in which the opposite side of the annular portion 4c _{1 is} temporarily fixed by, for example, a polyvinyl chloride insulating tape 14 (or a linear body) is formed from the pinch tube 13c of the overlapping portion. Further, the pinch tube 13c is previously covered on the other end side B of the cable 2 before following the loop 12c. As described above, in the present embodiment, the case where the connection is canceled is referred to as "temporary connection". Here, unlike the pinch tube 13b, since the pinch tube 13c is not compressed, it is temporarily fixed by the polyvinyl chloride insulating tape 14, and can be easily released by removing the polyvinyl chloride insulating tape 14. Therefore, the connection between the other end side B of the cable and the annular portion 4c ₁ of the bolt 4c of the other end side B' of the swing can be released.

As described above, in the case where the wire rope 2 of Fig. 5(a) after the both end portions are machined is pulled to the operation of the three anchor piles 1 arranged in a triangular shape, for example, as shown in Fig. 6, one end side A of the wire rope 2 is made. Located below the anchor pile 1 above the triangular configuration, the cable 2 is first pulled in the manner of the anchor pile 1 surrounding the upper portion, and then pulled to the side anchor pile 1, and then pulled to the lower anchor as shown in FIG. The pile 1 is in a state in which the bolt 4b that has been officially coupled to one end side A of the cable 2 is brought into close proximity to the turn button 4 that has been temporarily coupled to the other end side B of the cable 2.

Next, as shown in FIG. 8, the bolt 4b connected to the one end side A of the cable 2 is screwed to one end side A' of the main body portion 4a of the cable 2, and the cable 2 is brought into a ring-shaped temporary annular connection state. Further, as described above, since the other end side B of the cable 2 is temporarily connected to the annular portion 4c ₁ of the bolt 4c of the other end side B' of the swing, the cable 2 is temporarily connected in a ring-shaped temporary annular connection state. In the temporary loop-connected state, the buckle 4 is located between the two anchor piles 1 in the downward direction of the inclined plane. Further, the other end side B of the cable 2 which is inclined upward is the annular portion 4c of the connecting bolt 4c which is bent by the connecting bolts 4b, 4c on both sides, and the other end side B' of the swivel 4 which is inclined downward. ₁ and extend down the slope. In addition, the cable 2 is formed into a ring shape via the turnbuckle 4.

Subsequently, in the manner shown in FIG. 9 is removed into a ring the other end of the cable portion B 2 of the buckle switch is temporarily connected to the other end 4 side B 'of the bolt 4c _{4c. 1} provisionally coupling 16 is configured of a part of the polyvinyl chloride The insulating tape 14 is released from the temporary connection. Further, although the cable 2 is also kept in an annular shape in this state, the other end side B of the cable 2 is not fixed. At the stage of Fig. 8 or Fig. 9, the steel cable 2 which is pulled to the three anchor piles 1 in a temporarily looped state is slack as shown. After the temporary removal of the polyvinyl chloride insulating tape 14 is released, the cable end portion of the other end side B of the cable 2 extends downward in the free state (referred to as the lower extension portion 2a). As described above, the temporary loop-connected state keeps the cable 2 in a ring shape and can adjust the state of slack.

Then, in the previous step, the lower extension portion 2a of the other end side B of the steel cord 2 extending downward along the oblique direction is released in the previous step, and the cable 2 is pulled and tightened by the human hand to the lower side X in the oblique direction of the inclined surface to remove the cable 2 relaxation. Fig. 10 shows a state in which the cable 2 is tightened by human force to remove the slack of the cable 2. The lower extension portion 2a of the other end portion B of the cable 2 is lengthened by tensioning the cable. The portion in which the lower extension portion 2a is further lengthened is referred to as a cable inner length portion 2a'.

In the temporary loop-connected state of FIG. 9 in which the slack of the cable 2 is to be removed, the other end side B of the cable 2 after the temporary joining is released in the previous step is passed through the bolt attached to the other end side B' of the swivel 4 A state in which the ring portion 4c ₁ of the 4c is in the groove of the ring 12c and extends downward in the oblique direction (the lower extending portion 2a). Therefore, when the lower extension portion 2a extending downward along the inclined surface of the cable 2 is pulled downward to the lower surface X of the inclined surface as described above, the cable 2 is tightened, and the slack of the cable 2 is removed. Thus, the work of tightening the cable 2 to remove the slack can be performed by pulling the wire 2 to the lower side X of the inclined surface.

The slope of the construction bevel stability chemical method is generally a steep slope, and the pulling of the steel cable 2 to the lower side of the inclined surface X, in addition to the traction force brought by the wrist force of the operator, the weight of the operator is also caused by the steep slope Traction exerts its function, so it can pull and tighten the cable with a large traction. In this way, even if the steep slope of heavy machinery cannot be utilized, the cable can be tightened manually to remove slack.

Further, the cable and the other end 2 of the side B by the annular portion bolt rope end portion so as to releasably connected to the connected to the other end of the turn buckle 4 side B 'of 4c of preformed _{4c. 1} of the temporary coupling structure 16, so if When the anchor cable 1 is pulled to the three anchor piles 1 to form a ring-shaped temporary ring-shaped connection state, and the temporary connection structure is released, the cable end portion is extended to the lower side of the slope in this stage (the lower end is extended) The part 2a) can immediately pull the end of the cable and tighten it, and the workability is good.

Moreover, in this embodiment, the position of the swivel 4 is located between the two anchor piles in the oblique direction of the inclined surface, and the weight of the operator acts as the traction force in the respective directions of the lower side of the inclined surface, so the present invention The steel cable pulling method can function most effectively.

Due to a temporary coupling structure 16 of the cases of the embodiment 2 in that a rope is attached to the bolt portion 4c of the annular ring 12c of Down _{4c. 1} by the overlapping portion of the annular portion _{4c. 1} bolts 4c folded back by the pinch 13c, polyvinyl chloride Since the insulating tape 14 is temporarily fixed at the overlapping portion, the temporary connection structure 16 can be released by a simple operation of removing the polyvinyl chloride insulating tape 14. In addition, the lower extension portion 2a is lengthened by tightening the cable after the connection is released, but the connection can be performed by the compression pinch tube 13c in a state of being substantially close to the original state, and the workability is excellent. .

Next, the other end portion B of the cable 2 is temporarily coupled by a quilting machine to a portion of the temporary joint structure 16 of the ring portion 4c ₁ of the bolt 4c of the other end side B' of the swivel 4, that is, the pinch tube 13c. As shown in Fig. 11, the other end side B of the cable is formed into a main connecting structure 15 for final connection. Further, for example, the cable length portion 2a' extending downward below the slope is fixed by a polyvinyl chloride insulating tape 17 or the like.

Thus, in the state where the cable 2 is tightened by the human power, since the slack of the cable 2 is small, the swing 4 can be rotated and the tension can be simply imparted to the cable 2. After the state of Fig. 11, if the main body portion 4a of the rotary swivel 4 gives a specific tension to the cable 2, the operation end state of Fig. 4 is obtained.

[Embodiment 2]

In the above embodiment, the cable 2 prepared in advance is as illustrated in FIG. 5(a), although one end side A of the cable 2 is officially coupled to the bolt 4b on one end side A' of the turnbuckle 4, and the other side of the cable 2 is The one end side B is temporarily connected to the bolt 4c of the other end side B' of the buckle that is screwed to the swing button 4 by the temporary connection structure 16, but the structure of the both ends of the cable 2 is as shown in Figs. 12(b) to (c). As shown, many types of steel cables can be used.

In addition, the steel cable of Fig. 12 (a) is the same as the steel cable of Fig. 5 (a). In Figs. 12(a) to (e), the entire cable of the steel wire 2 is processed by the steel cables 2A, 2B, 2C, 2D, and 2E, respectively.

The cable 2B of Fig. 12(b) is formed by integrally joining one end side A of the cable 2 to the bolt 4b screwed to the one end side A' of the main body portion 4a of the swivel 4, and the other end side B of the cable 2 is utilized. The temporary connection structure 16 is temporarily coupled to the bolt 4c of the other end side B' of the buckle that is detached from the main body portion 4a of the swivel 4 .

The case where the wire rope pulling operation is performed using the wire rope 2B corresponds to the stage of Fig. 7 described above, as shown in Fig. 13(b).

When the cable 2B is in the temporary annular connection state similar to that of Fig. 8, the bolt 4c of the other end side B' of the buckle that is detached from the main body portion 4a of the swivel 4 is screwed into the main body portion 4a.

[Example 3]

The cable 2C of Fig. 12(c) is integrally joined to one end side A of the cable 2 and a bolt 4b which is screwed to one end side A' of the turn 4 of the bolts 4b, 4c on both sides of the main body portion 4a, respectively, and the cable 2 On the other end side B, a temporary connecting ring 16' which is not engaged with the annular portion 4c _{1 of the} bolt 4c is formed in the temporary connecting structure 16 described above.

The case where the wire rope pulling operation is performed using the wire rope 2C is as shown in Fig. 13(c) corresponding to the stage of Fig. 7 described above.

When the cable 2C is in the temporary annular connection state similar to that of FIG. 8, after the polyvinyl chloride insulating tape 14 and the loop 12c are temporarily detached from the other end B of the cable 2, the loop 12c is attached to the turn. An annular portion 4c ₁ of the bolt 4c of the other end side B' of the buckle 4, and with the operation as described above, the cable end passes through the annular portion 4c ₁ , passes through the pinch tube 13c, and is wound with the polyvinyl chloride insulating tape 14, A temporary joint structure 16 is formed.

[Example 4]

The wire 2D of Fig. 12(d) is obtained by detaching the bolt 4c of the other end side B' of the buckle 4 from the body portion 4a in the wire 2A of Fig. 12(a).

When the wire rope pulling operation is performed using the wire rope 2D, the stage corresponding to FIG. 7 described above is as shown in FIG. 13(d).

When the cable 2D is in the temporary annular connection state similar to that of FIG. 8, the bolts 4b and 4c on both sides of the swing buckle are screwed to the respective sides of the main body portion 4a of the swing buckle 4.

[Example 5]

The cable 2E of Fig. 12(e) is a formal connection of one end side A of the cable 2 to the bolt 4b of one end side A' of the turn 4 of the bolts 4b, 4c screwed to both sides of the main body portion 4a, respectively, although the cable 2 The other end side B is not subjected to end processing in particular, and only the wire terminal is held as it is, but an annulus 12c, a pinch tube 13c, and a polyvinyl chloride insulating tape of the drawings are attached in advance.

In the case where the wire rope pulling operation is performed using the wire rope 2E, it corresponds to the stage of the above-mentioned FIG. 7 (this case is such that the other end side B of the steel cable 2 and the other end side B' of the turnbuckle 4 are held only by the wire rope terminal as it is. Close to the stage), as shown in Figure 13 (e).

When the cable 2E is in the temporary annular connection state similar to that of FIG. 8, first, the wire 2 is passed through the pinch tube 13c, and the other end B of the wire 2 is temporarily coupled to the other end B' side of the turnbuckle 4 The annular portion 4c ₁ of the bolt 4c.

The annular portion to the case, to turn buckle the other end 4 side B 'of the bolt 4c of _{4c. 1} mounted Recessed ring 12c, so that the rope of the other end 2 side B along the Down ring 12c through the bolt annular portion _{4c. 1} 4c of folded overlap portion 13c passed through a pinch, the pinch starting from the overlapping portion of the opposite side 13c, for example, temporarily fixed annular portion 14 PVC insulating tape 4c _1, the temporary coupling structure 16 is formed.

[Embodiment 6]

In the above embodiment, although the position of the swivel 4 is located between the two anchor piles 1 in the oblique direction X (the direction in which the inclination is the largest), the present invention is not limited to this case, and may be applied to It is located between two anchor piles 1 spaced apart at least in the up and down direction along the slope.

For example, as shown in FIG. 14, it is also applicable to the case where the swivel 4 is located between the anchor pile 1 on the side of the three anchor piles 1 in the triangular configuration shown in the embodiment and the anchor pile 1 at the lower side.

In this case, when the operator tightens the cable 2, the cable end of the other end side B of the cable 2 is pulled down along the inclined surface, so that the weight can be pulled and the cable 2 can be pulled with a large force.

[Embodiment 7]

In each of the above embodiments, as shown in Fig. 12(a) (the same as Fig. 5(a)), the bolt 2b is integrally joined to one end side A' of the turnbuckle 4 as shown in Fig. 12(a) (same as Fig. 5(a)). Down Down of the ring portion 12b, and the other end of the rope 2 is temporarily connected to the B side of the annular portion of the other end of the turn buckle 4 side B 'of the bolt 4c _{4c. 1} provisionally coupling portion 16 configured to the same size as the ring 12c In the same manner as the cable 2A' shown in FIG. 15, the ring 12c' of the temporary connection structure 16 is partially connected to the bolt 4b which is the main end side A of the cable 2 is integrally connected to the one end side. It is desirable to use a larger size than the ankle ring 12c of the size corresponding to the diameter of the steel cord used for the ankle ring. For example, in the case where the cable diameter is 8 mm, an annulus ring 8b corresponding to an 8 mm diameter 8 mm is used as the one end side of the ankle ring 12b, and a larger ankle ring 12c' on the other end side is preferably used for, for example, 12 to 24 mm. ring.

When the structure of the loop and the pinch tube is used as the temporary joint structure 16, when the cable is tightened to remove the slack of the cable, the end portion of the cable end is passed through the pinch tube for the purpose of the final joint. Pressing on the side of the loop, but the shape of the horseshoe is smaller due to the size of the loop of the cable diameter used. Therefore, it takes a very large force to press the pinch to the side of the loop, and the steep slope should be It is quite difficult for manpower to carry out. However, 'as shown, when the fastener is attached to the rotation of the other end 4 side B' in FIG Recessed portion 15 of the annular ring 12c of the above-described bolt 4c _{4c. 1} Ring Down 12c ', because of its size than the diameter of the corresponding cable The size of the ankle ring 12b is large, so that the pinch tube can be pressed to the side of the ankle ring with a small force, and the pinch tube can be simply pressed to the side of the ankle ring by human.

[Embodiment 8]

The above-described embodiment, as the other end of the cable B 2 duly coupled to the other end 4 of the turn buckle side B 'of the annular portion 4c of formal bolt coupling structure 15 of _{4c. 1,} although the use of the cable calking machine to another The method in which the one end side is quilted by the pinch tube 13c through which the overlapping portion of the bolt is folded back is not limited thereto, and a method of fastening the overlapping portion by the cable clamp may be used. Further, a method of officially connecting by the binding process of the overlapping portion may be employed. Further, although it is desirable to attach the ankle ring to the ring portion, the ankle ring may not be used.

Since the swivel used in the present invention is rotated and adjusted in length in a state of being substantially connected to the surface of the inclined surface, the bolts 4b and 4c are screwed to the cylindrical body portion 4a as in the embodiment of the swivel 4 The constructor is preferred, but a so-called frame-type swivel in which the body portion is framed can also be used.

1‧‧‧anchor pile

2‧‧‧Steel cable

4‧‧‧WD

4a‧‧‧ Body Department

4b‧‧‧Bolts on one end

4c‧‧‧Bolts on the other end

16‧‧‧ Temporary Link Construction

One side of A‧‧‧ steel cable

A’‧‧‧ one end of the buckle

B‧‧‧The other end of the cable

B’‧‧‧Transfer the other end

X‧‧‧ lower side of the slope

Claims (3)

A steel cable pulling method for a bevel stability chemical method, characterized in that: three anchor piles adjacent to each other at intervals are arranged in a triangular arrangement at a vertex of a triangle, and a plurality of the anchor piles are disposed on a natural inclined surface, and A bearing plate is attached to the head of the anchor pile, and is fastened to give a bearing pressure to the foundation. Then, a ring rope is connected by a turn button having a connecting bolt at both ends, and each of the three triangular joints is connected. Between the anchor piles, before the steel wire is disposed on the inclined surface, the one end side of the steel cable is firstly connected to the connecting portion of the connecting bolt on one end side of the rotating buckle; the steel cable is as follows Temporary annular connection state: the above-mentioned buckle is located between two anchor piles in an inclined direction of the inclined surface, and a joint bolt is screwed on both sides of the swing buckle, and the other end side of the slope of the cable is inclined upward And extending through the connecting portion of the connecting bolt on the other end side of the buckle, and extending downward in the oblique direction of the inclined surface, wherein the steel cable is formed into a ring shape by interposing the turn button; The other end side of the cable extending downward in the oblique direction of the inclined surface is pulled down and tensioned in the oblique direction of the inclined surface to remove the slack of the above-mentioned annular steel cable; then, the other end side of the steel cable is formally coupled to the above-mentioned turn The connecting portion of the connecting bolt on the other end side of the buckle is buckled; and then the turn button is rotated to give the cable tension. The method for pulling a steel cable of the bevel stability chemical method according to claim 1, wherein the temporary connection structure of the other end portion of the cable is attached to the connecting portion of the connecting bolt on the other end side of the buckle, and Inserting the end portion of the cable along the loop portion through the connecting portion of the connecting bolt and inserting the overlapping portion into the clip After the tube, the opposite side of the connecting portion is temporarily fixed by a tape or a linear body from the pinch tube of the overlapping portion. The method for pulling a steel cable according to the slope stability chemical method of claim 2, wherein a size of the ankle ring of the connecting portion of the connecting bolt attached to the other end side of the elastic bolt buckle is larger than the one end side of the steel cable The size of the ring of the size of the corresponding cable diameter used in the ring.