JP2007191934A - Civil engineering work facility for slope, and civil engineering work method for slope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a civil engineering work facility for a slope and a civil engineering work method for the slope reducing installation work of fixing points by reducing load applied to the fixing points to enlarge the tolerance of trees usable as the fixing points. <P>SOLUTION: The civil engineering work facility comprises a remotely operable self-propelled working vehicle 2, and an assisting device 4 assisting the working vehicle 2 to the upper side of the civil engineering working face 3 of the slope. The intermediate parts of a lifting wire 9 delivered from a winch 6 are detachably guided along the outer edge of the civil engineering working face 3 by a plurality of fixed blocks 8, and the tip part of the lifting wire 9 is fixed to the fixing point 7 provided at one end of the outer edge of the civil engineering working face 3. The lifting wire 9 stretched between the fixing points in each of two pairs of the paired adjacent fixing points 7 is delivered onto the civil engineering working face 3 side, and running blocks 5 of the working vehicle 2 are hooked to the intermediate parts of the lifting wire 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a civil engineering work facility for sloping land that can be suitably used for civil engineering work on sloping ground such as a mountain slope and a civil engineering work method for sloping land.

  As a civil engineering facility suitable for civil engineering work on slopes such as mountain slopes, a pair of left and right fixed points are provided above the civil engineering work surface (mountain side), and a pair of left and right winches for work vehicles such as bulldozers and backhoes And fixing the lifting wires fed from both winches to the fixed points, respectively, and winding or lifting the lifting wires with both winches according to the vertical movement and left / right movement of the work vehicle, A device configured to assist the movement of the work vehicle has been proposed and put into practical use (see, for example, Patent Document 1).

  However, in the civil engineering equipment, because the winch is fixed to the upper swing body of the work vehicle, when the bucket arm assembled to the upper swing body is rotated, the winch rotates together with the upper swing body, and the lifting wire is Since it was pulled, it was necessary to always work the bucket arm downward to prevent this, and the workability of civil engineering work was very bad. Therefore, in order to prevent this, an annular member is fixed to the lower traveling body of the work vehicle, a connecting member is provided so as to be movable along the annular member, a pair of left and right pulleys are fixed to the connecting member, and the two pulleys are moved up and down. Even if the direction of the work vehicle is changed by winding the wire for winding and winding the wire for raising and lowering, both pulleys work by rotating the connecting member along the annular member. A configuration in which the vehicle is always located on the mountain side of the vehicle has also been proposed (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 4-120319 Japanese Patent Laid-Open No. 2003-27520

  By the way, in the civil engineering facilities for slopes as described in Patent Documents 1 and 2, usually, a fixed point is installed using a tree that naturally grows on the slope, but depending on the slope, the strength that can be used as a fixed point There is a case where a suitable tree having rigidity does not grow naturally. In such a case, a fixing point is separately constructed by burying and fixing an anchor or the like. However, since the work is performed on an inclined land, there is a problem that the construction work becomes very complicated. For this reason, there has been a demand for a civil engineering facility for sloping land that is configured so that a fixed point can be installed by using as much as possible the trees that naturally grow on the sloping land.

  The object of the present invention is to reduce the load acting on the fixed point, expand the allowable range of trees that can be used as the fixed point, and reduce the installation work of the fixed point, and civil engineering work for the inclined land Is to provide a method.

  The civil engineering work facility for sloping land according to the present invention is a civil engineering work facility for sloping land comprising a remotely operated self-propelled working vehicle and a support device for assisting the working vehicle above the civil engineering work surface of the sloping land. The assisting device includes a pair of movable pulleys connected to the work vehicle via connection means, a winch installed near the civil engineering work surface, and a civil engineering work surface on an inclined ground near the outer edge of the civil engineering work surface. And a plurality of fixed pulleys respectively attached to fixed points other than the fixed points provided at one end of the outer edge of the civil engineering work surface. A middle portion of the lifting wire fed from the winch is detachably guided along the outer edge of the civil engineering work surface by the plurality of fixed pulleys, and the tip of the lifting wire is guided to the outer edge of the civil engineering work surface. Fixed to a fixed point at one end A lifting wire stretched between the fixed points in each of the two sets, each having a pair of fixed points as one set, was fed out to the civil engineering work surface, and a moving pulley of the work vehicle was hooked in the middle of the wire. Is.

  When civil engineering work is performed using this civil engineering work facility for sloped land, first, three or more fixing points are provided at intervals along the outer edge of the civil engineering work surface, and provided at one end of the outer edge of the civil engineering work surface. A fixed pulley is attached to each fixed point other than the fixed point, and a winch is installed near the civil engineering work surface. Next, the lifting wire fed from the winch is guided along the outer edge of the civil engineering work surface by a plurality of fixed pulleys, and the tip of the lifting wire is fixed to a fixing point provided at one end of the outer edge of the civil engineering work surface. Then, the lifting wires stretched between the fixed points in each of the two sets, each having a pair of adjacent fixed points as one set, are fed out to the civil engineering work surface side, and a pair of work vehicles is placed in the middle Hook the movable pulleys, and set the civil engineering equipment for sloping land on the civil engineering work surface.

  In this way, with the civil engineering work facility for sloping land set on the civil engineering work surface, the work vehicle and winch are operated by remote control such as wireless, and the work vehicle is supported upward by the lifting wire to prevent the work vehicle from overturning However, the civil engineering work is performed on the civil engineering work surface by the work vehicle.

  Here, as the connecting means, it is preferable that a fixed guide pulley is attached to the work vehicle, a support wire having a movable pulley connected to both ends is provided, and the guide fixed pulley is hooked in the middle of the support wire. It is a form. If comprised in this way, the fluctuation | variation of the positional relationship of a pair of moving pulley can be absorbed with a support wire.

  In another preferred embodiment, a connecting wire for connecting the guide pulley and the work vehicle is provided, and the guide pulley is attached to a position away from the work vehicle. If comprised in this way, when performing a civil engineering operation | work with respect to the civil engineering work surface of the upper side of a working vehicle, since the raising / lowering wire, a moving pulley, and the guide fixed pulley do not become obstructive, the operativity of a working vehicle can be improved.

  It is also a preferred embodiment that the connecting means is provided with a rotating mechanism for connecting the movable pulley to the work vehicle so as to be rotatable around an axis in the vertical direction. In this case, even when the upper turning body of the work vehicle is turned or when the lower traveling body is turned to change the direction of the work vehicle, the connecting position of the movable pulley with respect to the work vehicle is set by the turning mechanism. Since it can always be adjusted to the mountain side, the work vehicle can be steered in the same way as when operating on a flat ground, and the workability of the work vehicle can be greatly improved.

  The fixing point can be configured using trees growing on an inclined land, or a pair of anchor bolts are provided in an embedded manner on the inclined land with a fixed interval, and a connecting plate for connecting the upper ends of both anchor bolts is provided. It is also possible to adopt a fixing point that is provided substantially parallel to the inclined ground and is configured to connect the tip of the lifting wire or the fixed pulley to the middle part of the connecting plate. In addition, using trees that grow on the opposite side of the lifting point of the lifting wire as the reinforcing point, and reinforcing the reinforcing wire between the fixing point and the reinforcing point, the support strength of the lifting wire is further improved it can.

  In the civil engineering work method for the sloped land according to the present invention, three or more fixing points are provided at intervals on the outer edge of the civil engineering work surface of the sloped ground, and the fixing point provided at one end of the outer edge of the civil engineering work surface is separated from the winch. A fixed pulley is attached to the remaining fixed point, and the middle part of the lifting wire is guided along the outer edge of the civil engineering work surface by a plurality of fixed pulleys. A pair of movable pulleys connected to a work vehicle is provided in the middle of the lifting and lowering wires that are stretched between the fixed points in each of the two sets. A setting process for hooking, and a work process for performing a civil work on the civil engineering work surface by the work vehicle while assisting the work vehicle with a winch to the upper side of the civil engineering work surface.

  According to the civil engineering work facility for sloping land and the civil engineering work method for sloping land according to the present invention, since the civil engineering work is performed by remotely operating the work vehicle, for example, even on a steep slope of 45 ° or more, the safety of the worker Civil engineering work can be performed while securing the property. In addition, since the lifting and lowering wires are stretched so that the two pulleys connected to the work vehicle become moving pulleys, it is possible to assist the work vehicle with four times the force, and a small output with a small output as a winch To reduce the equipment economic burden. In addition, since a fixed pulley is installed along the outer edge of the civil engineering work surface, it is easier to install the fixed pulley than in the case where it is installed in a place where trees are overgrown. In addition, it is not necessary to cut down trees in the moving region of the lifting wire around the fixed point. Furthermore, since the work vehicle can be supported by three or four fixing points, the lifting wire acting on one fixed point can be reduced to improve the safety of civil engineering work by the work vehicle. In addition, the allowable range of trees that can be used as fixed points can be expanded to improve the workability of fixed points.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a civil engineering work facility 1 for sloping land includes a self-propelled working vehicle 2 that can be remotely operated, and an assisting device 4 that assists the working vehicle 2 above a civil engineering work surface 3 on a sloping ground. The assisting device 4 includes a pair of movable pulleys 5 connected to the work vehicle 2 via a connecting means 40, a winch 6 installed near the civil engineering work surface 3, and a civil engineering work on an inclined land near the outer edge of the civil engineering work surface 3. At least three or more fixing points 7 provided at intervals along the first side 3a and the second side 3b of the outer edge of the work surface 3, and fixing provided at one end of the outer edge of the civil engineering work surface 3 A plurality of fixed pulleys 8 respectively attached to the fixed points 7 other than the points 7, and the middle portion of the lifting wire 9 fed out from the winch 6 is moved along the outer edge of the civil engineering work surface 3 by the plurality of fixed pulleys 8. The tip of the lifting wire 9 is guided so as to be detachable, and one end of the outer edge of the civil engineering work surface 3 The lifting and lowering wire 9 stretched between the fixed points 7 in each of the two sets, each of which is fixed to the fixed point 7 provided, and one pair of adjacent fixed points 7 is extended to the civil engineering work surface 3 side. Thus, the movable pulley 5 of the work vehicle 2 is hooked on the middle part thereof. The three fixed pulleys 8 at the lower end of the first side 3a are merely for guiding the elevating wire 9 to the winch 6 side, and can be omitted.

  As long as the work vehicle 2 can perform civil engineering work on the civil engineering work surface 3, a work machine having an arbitrary configuration such as a hydraulic excavator or a bulldozer can be employed. The work vehicle 2 shown in FIG. 2 is a hydraulic excavator provided with a crawler-type lower traveling unit 10 and an upper revolving unit 11 that is turnably provided on the lower traveling unit 10, and is rotatably attached to the upper revolving unit 11. The bucket 14 is rotatably supported via the boom 12 and the arm 13 rotatably attached to the boom 12, and the bucket 14 can be operated by a plurality of hydraulic cylinders 15. It is. Instead of the bucket 14, a rock drill or the like can be detachably attached to the tip of the arm 13.

  As shown in FIG. 1, the winch 6 includes a drum 16 around which a lifting wire 9 is wound, and driving means 17 that rotationally drives the drum 16 so that the drum 16 can be switched between a forward direction and a reverse direction. Is a well-known structure that can be fed out and wound up. It is preferable to install the winch 6 below one side of the civil engineering work surface 3 because it is easy to install and install, but the winch 6 should be provided in the middle or upper part of the height direction on the slope near the civil engineering work surface 3. Is also possible. The work vehicle 2 and the winch 6 are configured to be steerable by wireless remote operation, and are configured to ensure the safety of the worker.

  The moving pulley 5 and the fixed pulley 8 can adopt different configurations, but as shown in FIGS. 3 and 5, it is possible to use the same configuration to produce the pulleys 5 and 8. Is preferable. The pulleys 5 and 8 will be described. As shown in FIGS. 3, 5, and 6, a pulley body 20 on which the lifting wire 9 is hung is provided, and an upper surface plate 21 and a lower surface plate are provided on both upper and lower sides of the pulley body 20. 22 are provided. The upper surface plate 21 and the lower surface plate 22 are constituted by a mounting plate 23 having a slightly larger plane size than the pulley body 20 and a reinforcing plate 24 elongated in the front-rear direction for reinforcing the upper surface plate 21 and the lower surface plate 22. They are connected by a spacer plate 25 provided between the sections. A rotation shaft 26 is provided in a substantially central portion of the upper surface plate 21 and the lower surface plate 22, and the pulley body 20 is rotatably supported by the rotation shaft 26 between the upper surface plate 21 and the lower surface plate 22.

  The upper surface plate 21 is divided into a main body 21a and an opening / closing body 21b. The opening / closing body 21b is a closure illustrated by a solid line in FIG. 6 (a) with a pivot pin 27 provided at the end of the main body 21a as a center. The hoisting wire 9 can be attached to and detached from the pulley body 20 in a state where the position and the open position shown in the phantom line are rotatably supported and the opening / closing body 21b is rotated to the open position. ing. In order to hold the opening / closing body 21b in the closed position, a connecting block 28 is fixed to the rear end portion of the lower mounting plate 23, and a connecting pin 29 protruding upward is planted in the connecting block 28. A pin hole 30 into which the connection pin 29 can be inserted is formed at the rear end portion, and the front end of the connection pin 29 is mounted with the connection pin 29 attached to the pin hole 30 by rotating the opening / closing body 21b to the closed position. By attaching a pin member (not shown) to the part, the opening / closing body 21b can be held in the closed position. A connecting tool 32 extending rearward is attached to the connecting block 28, and the fixed pulley 8 and the movable pulley 5 are connected to the fixed point 7 and the work vehicle 2 via a shackle 33 detachably attached to the rear end of the connecting tool 32. Each is attached to the connecting means 40.

  The connecting means 40 is for connecting a pair of the moving pulleys 5 to the work vehicle 2, and can be engaged with and disengaged from the supporting wire 35 having the moving pulleys 5 connected to both ends and the middle portion of the supporting wire 35. A fixed guide pulley 36 to be attached and a connecting mechanism 37 for rotatably connecting the fixed guide pulley 36 to the work vehicle 2 are provided. In addition, since the guide pulley 36 has the same configuration as the fixed pulley 8 and the movable pulley 5, the same members are denoted by the same reference numerals, and detailed description thereof is omitted.

  The connection mechanism 37 will be described. As shown in FIGS. 2 to 4, a disk-like support plate 41 is provided substantially horizontally on the lower traveling unit 10 between the lower traveling unit 10 and the upper turning unit 11 of the work vehicle 2. In addition, a ring-shaped member 42 is provided on the entire outer periphery of the support plate 41, and the ring-shaped member 42 is formed with a guide portion 42 a that protrudes to both the upper and lower sides of the support plate 41. A movable member 43 that is U-shaped in a side view is provided on the outer peripheral portion of the support plate 41 in an outer fitting manner, and the movable member 43 has a plurality of abutments on the inner peripheral surface and the outer peripheral surface of the guide portion 42a of the ring-shaped member 42. The roller 44 and a plurality of rollers 45 that contact the upper and lower surfaces of the ring-shaped member 42 are provided, and the movable member 43 is rotatable only in the direction along the ring-shaped member 42 by the plurality of rollers 44, 45. It is guided to. A pair of brackets 46 are fixed to the front surface of the movable member 43, and a connecting member 48 is rotatably supported on both brackets 46 about a substantially horizontal pivot shaft 47, and the connecting member 48 has a substantially vertical direction. The guide fixed pulley 36 is hooked on the connection shaft 49 by the shackle 33 and is attached to the work vehicle 2 so as to be rotatable along the ring-shaped member 42 together with the movable member 43. Further, the guide pulley 36 is supported so as to be pivotable in the vertical direction around the pivot shaft 47, and is also supported so as to be pivotable in the left-right direction around the connecting shaft 49. 3 is configured so as to absorb the swinging of the work vehicle 2 during the civil engineering work 3 so that excessive force does not act on the support wire 35 and the lifting wire 9. As shown in FIG. 7, the guide pulley 36 can be connected to the connecting shaft 49 using a connecting wire 70. In this case, by setting the length of the connecting wire 70 to be longer than the moving range of the bucket 14, the work vehicle 2 is not obstructed by the guide pulley 36, the moving pulley 5, and the lifting wire 9. It is preferable because the civil engineering work can be performed on the civil engineering work surface 3 on the upper side.

  As shown in FIG. 5, the fixed point 7 is composed of a tree that grows at a suitable position on the outer edge of the civil engineering work surface 3, and the fixed pulley 8 is a tree having a rope 50 made of a wire rope, fiber rope, or the like as the fixed point 7. The shackle 33 of the fixed pulley 8 is hooked on the eye formed on both ends of the rope 50 and fixed to the fixed point 7.

  Further, in order to increase the installation strength of the fixing point 7 on the inclined ground, the fixing point 7 is pulled to the opposite side to the side opposite to the pulling side of the fixing point 7 by the lifting wire 9 to prevent the fixing point 7 from falling sideways. Reinforcing means 51 is provided. The reinforcing means 51 will be described. One or a plurality of trees that grow on the side opposite to the pulling side of the lifting wire 9 with respect to the fixed point 7 are provided as the reinforcing points 52, and the trees as the fixed points 7 and the reinforcing points 52 are provided. Rope 54 is wound around each. Shackles 55 and 56 are respectively attached to the eyes at both ends of both ropes 54, one end of a turnbuckle 57 is connected to one shackle 55, and one end of a reinforcing wire 53 is connected to the other shackle 56. ing. The other end of the turnbuckle 57 and the other end of the reinforcing wire 53 are connected by a shackle 58, and the turnbuckle 57 is rotated to apply a constant tensile force between the fixed point 7 and the reinforcing point 52. The fixing point 7 is prevented from falling down due to the tension of the lifting wire 9. However, any number of the reinforcing means 51 can be provided, and can be omitted if the installation strength of the fixing point 7 can be sufficiently secured.

  In the present embodiment, the trees that grow on the slopes near the civil engineering work surface 3 are used as the fixed points 7 and the reinforcing points 52. However, when no suitable trees are growing, as shown in FIG. In a state where a pair of holes 60 having a depth of 2 to 3 m are formed at a certain interval on the inclined ground at the construction position of the fixing point 7 and the anchor bolt 61 is set in the hole 60. Then, the concrete 62 is poured, and the pair of anchor bolts 61 are fixed to each other at a fixed interval in an embedded manner on the slope, and the connecting plate 63 that connects the upper ends of both anchor bolts 61 is fixed substantially parallel to the slope. Thus, the fixing point 7 and the reinforcing point 52 can be provided. In this case, the rope 50 is inserted into the mounting hole 64 formed in the middle part of the connecting plate 63, and the fixed pulley 8 is connected to the eyes formed on both ends of the rope 50 using the shackle 33, or the elevator is moved up and down. The tip of the wire 9 is fixed. In addition, as the fixing point 7 and the reinforcing point 52, those having an arbitrary configuration other than those exemplified in FIG. 8 can be adopted.

Next, a civil engineering work method using the civil engineering equipment for slopes 1 will be described.
First, in the setting step, as shown in FIG. 1, a plurality of fixing points 7 are provided at intervals along the outer edge of the civil engineering work surface 3, and fixed pulleys 8 are attached to the plurality of fixing points 7, and civil engineering work is performed. A winch 6 is installed below the first side 3 a of the surface 3. Next, the lifting wire 9 fed out from the winch 6 is guided along the outer edge of the civil engineering work surface 3 by a plurality of fixed pulleys 8, and the tip of the lifting wire 9 is connected to the second side 3 b of the civil engineering work surface 3. Fix to a fixed point 7 at the lower end. Next, the elevating wire 9 stretched between the uppermost fixed point 7 and the fixed points 7 on both sides thereof is fed out to the civil engineering work surface 3 side, and a pair of movable pulleys 5 of the work vehicle 2 are provided in the middle thereof. Each of them is hooked to set the civil engineering work facility 1 for the sloping land on the civil engineering work surface 3. In addition, a fence F is installed in advance along the lower edge of the civil engineering work surface 3 so that earth and sand do not fall below the civil engineering work site.

  Next, in the work process, the winch 6 and the work vehicle 2 are remotely operated in a safe place where the work vehicle 2 can be visually observed, and the winch 6 is operated so that the lifting wire 9 is not loosened. Move to the upper part of the civil engineering work surface 3 and move the working vehicle 2 in the vertical and horizontal directions while assisting the working vehicle 2 to the upper side of the civil engineering work surface 3, in order from the upper side with respect to the civil engineering work surface 3. Civil engineering work. At this time, the upward movement of the work vehicle 2 is performed by the traveling of the work vehicle 2 by the crawler and the lifting force of the lifting wire 9 by the winch 6, and the horizontal movement and downward movement are performed on the lifting wire 9. While the work vehicle 2 is prevented from rollover by applying a certain tension, the work vehicle 2 is turned in the traveling direction and travels in the same manner as the movement on the flat ground. If necessary, the fixed pulley 8 that feeds the lifting wire 9 to the civil engineering work surface 3 side is switched to the lower fixed pulley 8, and the uppermost position of the lifting wire 9 is sequentially moved downward. It is also possible to perform civil engineering work.

  In the above-described embodiment, the work vehicle 2 is supported by the three fixed points 7. However, as shown in FIG. 9, a pair of adjacent fixed points 7 is set as a set and spaced apart. The lifting and lowering wires 9 stretched between the fixed points 7 in each of the two sets are fed out to the civil engineering work surface 3 side, and the movable pulleys 5 are respectively hooked on the midway portions thereof, so that the four fixed points 7 It is also possible to support the work vehicle 2.

Front view of civil engineering equipment for sloping land Side view of work vehicle Plan view of connecting means and movable pulley Plan view of coupling mechanism and guide pulley Illustration of fixed pulley installation structure (a) is a plan view of the pulley, (b) is a side view of the pulley. Plan view of the principal part in the connecting means of another configuration Explanatory drawing of other installation structure of fixed point and reinforcing point Front view of civil engineering work facility for sloped land with modified lifting wire

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Civil engineering work equipment for sloping ground 2 Work vehicle 3 Civil engineering work surface 3a 1st side 3b 2nd side 4 Assistance device 5 Moving pulley 6 Winch 7 Fixed point 8 Fixed pulley 9 Lifting wire 10 Lower traveling part 11 Upper turning part 12 Boom 13 Arm 14 Bucket 15 Hydraulic cylinder 16 Drum 17 Driving means 20 Pulley body 21 Upper surface plate 21a Body portion 21b Opening and closing body 22 Lower surface plate 23 Mounting plate 24 Reinforcement plate 25 Spacer plate 26 Rotating shaft 27 Pivoting pin 28 Connecting block 29 Connecting pin 30 Pin Hole 32 Connecting tool 33 Shackle 35 Supporting wire 36 Guide fixed pulley 37 Connecting mechanism 40 Connecting means 41 Support plate 42 Ring-shaped member 42a Guide part 43 Movable member 44 Roller 45 Roller 46 Bracket 47 Pivot shaft 48 Connecting member 49 Connecting shaft 50 Rope 51 Reinforcement means 52 Reinforcement point 53 Reinforcing wire 5 Rope 55 shackle 56 shackle 57 turnbuckle 58 shackle 60 hole 61 anchor bolts 62 concrete 63 coupling plate 64 mounting holes 70 connecting wires

Claims (8)

A civil engineering work facility for slopes, comprising a self-propelled work vehicle that can be remotely operated, and an assisting device that assists the work vehicle above the civil engineering work surface of the slope,
The assisting device includes:
A pair of movable pulleys coupled to the work vehicle via coupling means;
A winch installed near the civil engineering work surface;
A plurality of fixed points of at least three or more provided on the sloped land near the outer edge of the civil engineering work surface, spaced apart from each other along the outer edge of the civil engineering work surface;
A plurality of fixed pulleys each attached to a fixed point other than the fixed point provided at one end of the outer edge of the civil engineering work surface;
A middle portion of the lifting wire fed from the winch is detachably guided along the outer edge of the civil engineering work surface by the plurality of fixed pulleys, and the tip of the lifting wire is guided to the outer edge of the civil engineering work surface. Fixed to a fixed point provided at one end, a lifting wire stretched between the fixed points in each of the two sets, each of which is a pair of fixed points, is fed out to the civil engineering work surface side. Hooked a work pulley
Civil engineering equipment for sloping terrain characterized by this.   2. The inclined land according to claim 1, wherein as the connecting means, a guide pulley is attached to the work vehicle, a support wire is provided at both ends of the guide pulley, and the guide pulley is hooked in the middle of the support wire. Civil engineering equipment.   The civil engineering work facility for sloping ground according to claim 2, wherein a connecting wire for connecting the guide pulley and the work vehicle is provided, and the guide pulley is attached at a position away from the work vehicle.   The civil engineering work facility for sloping ground according to any one of claims 1 to 3, wherein the connecting means is provided with a connecting mechanism for connecting the movable pulley to the work vehicle so as to be rotatable about a vertical axis.   The civil engineering work facility for sloping land according to any one of claims 1 to 4, wherein a tree growing on a sloping land is used as the fixed point.   As the fixed point, a pair of anchor bolts are provided in an embedded manner on a sloping ground at regular intervals, and a connecting plate for connecting the upper ends of both anchor bolts is provided substantially parallel to the sloping ground, and is moved up and down on the middle of the connecting plate. The civil engineering work facility for sloping lands of any one of Claims 1-4 which connected the front-end | tip part or fixed pulley of the wire for construction.   The tree according to any one of claims 1 to 6, wherein a tree growing on a side opposite to the pulling side of the fixing point by the lifting wire is used as a reinforcing point, and a reinforcing wire is stretched between the fixing point and the reinforcing point. Civil engineering equipment for slopes. Three or more fixing points are provided at intervals on the outer edge of the civil engineering work surface on the inclined ground, and the tip of the lifting wire fed from the winch is fixed to the fixing point provided at one end of the outer edge of the civil engineering work surface. At the same time, fixed pulleys are attached to the remaining fixed points, and the middle part of the lifting wire is guided along the outer edge of the civil engineering work surface by a plurality of fixed pulleys. A setting process in which a lifting wire stretched between fixed points in the set is drawn out to the civil engineering work surface side, and a pair of moving pulleys connected to the work vehicle is hooked on the middle part thereof;
A work process of performing civil engineering work on the civil engineering work surface with the work vehicle while assisting the work vehicle with the winch to the upper side of the civil engineering work surface;
A civil engineering work method for sloping ground characterized by comprising:

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