JP2007303231A - Method and facility for measuring sliding surface of slope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a facility for measuring the sliding surface of a slope capable of easily and accurately measuring the positions of rocks at multiple points on the slope and minimizing wasteful civil engineering operations by accurately calculating the sliding surface of the slope. <P>SOLUTION: By using a sliding surface measuring facility 1 having a self-traveling work vehicle 2, an assisting device 5 for assisting the work vehicle 2 to the upper side of the slope by a winch 3 by using a lifting wire rope 4 stretched between the work vehicle 2 and the upper part of the slope, and a rock position measuring means 32 installed in the work vehicle 2, the work vehicle 2 is moved to a pre-set measurement position MP while assisting the work vehicle 2 to the upper side of the slope by the assisting device 5. The position of the rock is measured by the rock position measuring means 32 at the measurement point MP. The positions of the rocks are sequentially measured at multiple measurement points MP to obtain the sliding surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sliding surface measuring method and a sliding surface measuring facility on an inclined land such as a mountain slope.

  When performing civil engineering work such as constructing slopes on slopes such as mountain slopes, in order to prevent the occurrence of landslides after construction, in order to prevent the occurrence of landslides, In addition to measuring the boundary surface in advance, measure the crack position on the sloped ground, calculate the estimated slip surface from the boundary surface and the crack position, and perform civil engineering work such as excavation of the tilted land and anchor placement based on the assumed slip surface. ing.

  By the way, in order to accurately measure the position of the boundary surface, it is necessary to perform the boring operation at a plurality of locations on the slope and measure the rock mass position, or to measure the rock mass position by a standard penetration test. However, transportation of geological survey boring machines and standard penetrating test machines to sloped ground is often difficult due to the slope of the slope and the trees growing on the slope. It is the actual situation that a simple intrusion test is conducted manually at two points above and below the slope to be applied and measured as a rock mass position, and an assumed slip surface is calculated from the rock mass position at these two points and the ground crack position on the slope ground. By the way, in the simple penetration test, a hammer with a mass of 5 kg is freely dropped by 50 cm, and the number of times (Nc value) required for the tip cone to penetrate 10 cm is measured. Since there are many variations in accuracy and the length of the measuring rod is not 1 m, there has been a problem that the actual rock mass position can only be measured indirectly.

  In addition, when civil engineering work is performed on sloping ground using heavy machinery, after constructing the pilot road from the bottom to the top of the sloping ground based on the assumed sliding surface, the heavy machinery is installed on the top of the sloping ground using the pilot road. It is moved, and civil engineering work such as excavation is performed along the excavation surface set in advance according to the assumed sliding surface in order from the upper side of the sloped land by heavy machinery.

  On the other hand, as civil engineering equipment suitable for civil engineering work on 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 are installed on work vehicles such as bulldozers and backhoes. Then, the lifting wires fed out from both winches are fixed to the fixing points, respectively, and the lifting wires are wound up and fed out by both winches according to the vertical movement and left / right movement of the work vehicle. A device configured to assist the movement has been proposed and put into practical use (for example, see Patent Document 1).

  However, in the civil engineering work facility, when the winch is fixed to the upper swing body of the work vehicle, when the bucket arm assembled to the upper swing body is swung, the winch is swung 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, civil engineering work on slopes is carried out according to various surveys conducted at each work site, and a report specifying the details of the work is prepared in advance. The calculation of is an important factor for determining the construction content. However, as mentioned above, it is often difficult to transport geological survey boring machines and standard penetration testing machines on sloping terrain, and it was calculated mainly because of the calculation based on the test results of the simple penetration test. The assumed slip surface includes a relatively large error. For this reason, the assumed sliding surface is usually set to the safe side by multiplying it with a safety factor.However, if the assumed sliding surface is set to the safe side in this way, the bedrock will be exposed during excavation work on sloping ground. In spite of this, it is often found that it is a wasteful work because further excavation is often forced, and because the bedrock is exposed, it is not possible to change the construction work on the way. On the other hand, the actual situation is that civil engineering work is carried out with great effort and cost.

  It is an object of the present invention to be able to easily and accurately carry out a work for measuring rock positions at a plurality of points on an inclined land, and to calculate a sliding surface of the inclined land with high accuracy, so that it is possible to reduce wasteful civil engineering work as much as possible. It is providing the slip surface measuring method of this, and the slip surface measuring equipment of a sloping ground.

  As a result of diligent study to minimize wasteful civil engineering work on sloped land, the applicant has the idea that wasteful civil engineering work can be reduced as much as possible by setting the sliding surface of the sloped land closer to the actual surface. As a result, the present invention has been completed.

  The method for measuring a sliding surface of an inclined ground according to the present invention uses a winch to assist the working vehicle to the upper side of the inclined ground by using a self-propelled working vehicle and a lifting wire stretched between the working vehicle and the upper portion of the inclined ground. Using the sliding surface measurement equipment provided with the assist device and the rock mass position measuring means provided on the work vehicle, the work vehicle is moved to a preset measurement position while assisting the work vehicle to the upper side of the slope by the assist device, The rock position is measured by the rock position measuring means at the measurement position, and the rock position is sequentially measured at a plurality of measurement positions to obtain the sliding surface.

  In this sliding surface measurement method, the work vehicle can be moved to an arbitrary position on the slope while assisting the work vehicle to the upper side of the slope by the assist device, and the work vehicle is provided with the rock mass position measuring means. The rock position can be easily measured at a plurality of measurement positions without constructing a pilot road or the like. In particular, at a site where a landslide has occurred, the trees are falling down, so that the work vehicle can be moved without performing operations such as cutting the trees. In addition, since the position of the sliding surface is calculated based on the measurement data of the plurality of rock positions obtained in this way, the sliding surface can be calculated with high accuracy, and civil engineering work should be performed according to the calculated sliding surface. Thus, civil engineering work such as wasteful excavation can be largely omitted. In addition, when constructing a slope, the number and length of anchor pins can be set according to the work site, so that unnecessary construction work of anchor pins during slope construction can be omitted.

  Here, the rock position can be measured in order from the measurement position on the upper side of the slope, the civil work can be performed on the slope with a work vehicle, and the civil work can be performed while measuring the sliding surface in order from the upper side. It is also preferable to perform the civil engineering work according to this sliding surface after calculating the sliding surface first by measuring only the rock mass position on the slope. However, as in this invention, the measurement of the rock mass position and the civil engineering work are alternately performed. This is preferable because it enables efficient civil engineering work such as sliding surface measurement and excavation.

  As the rock position measuring means, a geological survey boring machine can be detachably provided on the work vehicle. In this case, a geological survey boring machine can be attached to the work vehicle to excavate the slope and measure the rock mass position.

  A standard penetration testing machine can be detachably provided on the work vehicle as the rock mass position measuring means. In this case, the rock mass position can be measured based on the N value obtained by the standard penetration test.

  Current position measuring means for measuring the current position of the work vehicle may be provided. The current position of the work vehicle can be measured with an optical measuring instrument or the like, but it is preferable to measure it with a current position measuring means such as GPS (Global Positioning System) because it can be easily measured.

  It is preferable to provide remote operation means for remotely operating the work vehicle. It is possible to work on the work vehicle and perform rockwork position measurement work and civil engineering work. However, depending on the slope, there are many slopes with a steep slope of 45 ° or more. Since this work involves danger, it is preferable to improve the safety of the worker so that the work vehicle can be remotely operated in a safe place as in the present invention.

  As the assisting device, a moving pulley provided on the work vehicle, a pair of fixed points provided on the outer edge of the planned civil engineering work surface on the sloping ground, a fixed pulley fixed to at least one fixed point, a civil engineering work planned surface A winch provided under the outer edge, guides the lifting wire fed from the winch to the other fixed point via a fixed pulley, and moves the lifting wire stretched between the two fixed points toward the planned civil engineering work side It is a preferred embodiment to use one that is extended and hooked with a moving pulley of a work vehicle in the middle. Using such an assist device, a heavy winch can be installed at the lower edge of the planned civil engineering work surface, and it is only necessary to install a fixed pulley on the upper part of the slope. Labor can be greatly reduced. Further, only one winch is required, and it is not necessary to use two as described in Patent Document 1, so that the equipment cost of the sliding surface measuring equipment is reduced. In addition, since the lifting wire is stretched so that the pulley attached to the work vehicle becomes a moving pulley, it is possible to assist the work vehicle with twice the force, and a small winch with a small output is adopted. Thus, the equipment economic burden can be reduced.

  The apparatus for measuring a sliding surface of an inclined ground according to the present invention uses a winch to assist the working vehicle to the upper side of the inclined ground using a self-propelled working vehicle and a lifting wire stretched between the working vehicle and the upper portion of the inclined ground. And a rock mass position measuring means provided in the work vehicle.

  Here, a geological survey boring machine is detachably provided on a work vehicle as the rock mass position measuring means, a standard penetration testing machine is detachably provided on the work vehicle as the rock mass position measuring means, and the current position of the work vehicle Providing a current position measuring means for measuring, a remote operating means for remotely operating the work vehicle, a moving pulley provided on the work vehicle as an assisting device, and an upper part of an outer edge of a planned civil engineering work surface on an inclined ground A fixed pulley fixed to at least one fixed point, and a winch provided at a lower portion of the outer edge of the planned civil engineering work surface, and the lifting wire fed from the winch is used as the other fixed point. Use a guide that is guided through a fixed pulley, and that lifts a lifting wire stretched between the two fixed points to the civil engineering work planned surface side and hooks a moving pulley of the work vehicle in the middle. Etc. is the preferred embodiment.

  According to the sliding surface measuring method and the sliding surface measuring equipment for the slope according to the present invention, the work vehicle can be moved to an arbitrary position on the slope while assisting the work vehicle to the upper side of the slope by the assisting device. Since the vehicle is provided with the rock mass position measuring means, the rock mass position can be easily measured at a plurality of measurement positions without constructing a pilot road or the like. In particular, at a site where a landslide has occurred, the trees are falling down, so that the work vehicle can be moved without performing operations such as cutting the trees. In addition, since the position of the sliding surface is calculated based on the measurement data of the plurality of rock positions obtained in this way, the sliding surface can be calculated with high accuracy, and civil engineering work should be performed according to the calculated sliding surface. Thus, civil engineering work such as wasteful excavation can be largely omitted. In addition, when constructing a slope, the number and length of anchor pins can be set according to the work site, so that unnecessary construction work of anchor pins during slope construction can be omitted.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the slope-slide surface measuring equipment 1 assists the work vehicle 2 to the upper side of the slope using a self-propelled work vehicle 2 and a lifting wire 4 fed out from the winch 3. A support device 5, a rock position measurement device 6 for measuring the rock position GP, and a wireless controller 7 for remotely operating the work vehicle 2, the support device 5, and the rock position measurement device 6 are provided.

  In order to remotely operate the work vehicle 2, the assisting device 5, and the rock mass position measuring device 6, the work vehicle 2 includes a wireless device 10, various hydraulic devices 11 of the work vehicle 2 based on signals from the wireless device 10, and various types. Control means 13 for controlling the electric device 12 is provided. Further, the assisting device 5 is provided with a wireless device 20 and a control unit 21 that controls the driving of the winch 3 of the assisting device 5 based on a signal from the wireless device 20. Furthermore, the rock mass position measuring device 6 is provided with a radio 30 and a control means 31 for controlling the rock mass position measuring means 32 and the like based on a signal from the radio 30. Then, the assisting device 5 and the work vehicle 2 are remotely operated by the wireless controller 7 to move the work vehicle 2 near the measurement position MP set in advance on the civil engineering work planned surface CS, and the rock mass position measurement device 6 is remotely operated. And it is comprised so that the depth D to the bedrock can be measured in the measurement position MP. The sliding surface measuring facility 1 is configured such that the worker W can operate the wireless controller 7 to operate the work vehicle 2, the assisting device 5, and the rock position measuring device 6 in a safe place near the work vehicle 2. However, equipment configured such that an operator actually gets into the work vehicle 2 and manually operates the work vehicle 2, the assisting device 5, and the rock mass position measuring device 6 is also within the scope of the present invention.

  The work vehicle 2 can employ a work machine having an arbitrary configuration such as a hydraulic excavator or a bulldozer. The work vehicle 2 shown in FIG. 2 and FIG. 4 is a hydraulic excavator provided with a crawler-type lower traveling unit 14 and an upper revolving unit 15 that is turnably provided on the lower traveling unit 14. The rock position measuring means 32 is rotatably supported via the boom 16 that is freely attached and the arm 17 that is rotatably attached to the boom 16, and the rock position measuring means 32 is operated by a plurality of hydraulic cylinders 18. It is of a known configuration that has become possible. As shown in FIG. 3, the work vehicle 2 is provided with a wireless device 10 and a control unit 13 that controls various hydraulic devices 11 and various electrical devices 12 of the work vehicle 2 based on signals from the wireless device 10. By operating the wireless controller 7, the work vehicle 2 can be freely operated in the same manner as when the operator W gets on and operates. In addition, instead of the rock mass position measuring means 32, a bucket, a rock drill or the like is detachably attached to the distal end portion of the arm 17 of the work vehicle 2 so that the sliding surface measuring equipment 1 can excavate an inclined ground. It can be used as it is as civil engineering equipment.

  As shown in FIGS. 2 to 5, the rock mass position measuring device 6 includes a rock mass position measuring means 32 attached to the tip of the arm 17, a turning angle measuring means 33 for measuring the turning angle θ <b> 1 of the upper turning section 15, The angle measuring means 34 to 36 for measuring the angles θ2 to θ4 of the boom 16, the arm 17 and the rock mass position measuring means 32, the gradient measuring means 37 for measuring the slope θ of the slope, and the current position of the work vehicle 2 are measured. A current position measuring means 38 comprising a GPS (Global Positioning System), a radio 30 for exchanging data and signals with the radio controller 7, and a control means 31 for controlling the rock mass position measuring means 32 are provided. . The control means 31 transmits the current position information of the work vehicle 2 obtained from the current position measuring means 38 to the wireless controller 7. The wireless controller 7 displays the measurement position MP and the current position of the work vehicle 2 on the display (not shown) provided on the wireless controller 7 so that the work vehicle 2 can be easily operated to the desired measurement position MP. It is configured. Further, when measuring the rock mass position GP, the control means 31 controls necessary power supply and pressure oil supply to the rock mass position measuring means 32 in accordance with the operation of the wireless controller 7, so that the rock mass at the measurement position MP is controlled. Measure depth D. Further, in the control means 31, the dimensions of each part of the work vehicle 2 are previously input and stored. The data of the dimensions of each part and the angles θ1 to θ4 and the gradient θ obtained by measurement and the current position of the work vehicle 2 are stored. Based on the three-dimensional coordinate data, the three-dimensional coordinates of the measurement position MP (the excavation start position of the inclined surface by the rock position measurement means 32) are calculated, and based on the rock depth D measured by the rock position measurement means 32. The three-dimensional coordinates of the rock at the measurement position MP are calculated as the rock position GP. However, the calculation of the three-dimensional coordinates of the rock mass position GP can also be performed on the personal computer by transmitting necessary data to the personal computer installed on the fixed base.

  As the rock position measuring means 32, any structure can be adopted as long as the rock position GP can be measured. Specifically, a geological survey boring machine, a standard penetrating tester 40, or a simple penetrating tester can be used, but other devices such as elastic wave exploration, electrical exploration, and acoustic exploration can also be employed. . For example, when performing a standard penetration test, as shown in FIG. 5, the boring rod 42 provided with a knocking block 41 in the middle, the sampler 43 attached to the lower end of the boring rod 42, and the knocking block 41 A standard penetration testing machine 40 having a drive hammer 44 provided on the boring rod 42 so as to be movable up and down on the upper side and a boring machine 45 shown in FIG. 4 are attached to the tip of the arm 17. After the boring hole 46 is formed vertically, the sampler 43 is inserted to the bottom of the boring hole 46, the standard penetration testing machine 40 is set in the boring hole 46, and the drive hammer 44 is freely set with respect to the knocking block 41 from the set height. It is necessary for the sampler 43 to fall and penetrate 30cm into the ground. The 撃回 number recorded as N values, drill down the borehole 46 for example by stepwise 1 m, the N value measured in the same manner as above, thereby obtaining the depth D became e.g. N value 20 or more. Instead of the sampler 43, it is also possible to attach a core tube to the lower end portion of the boring rod 42, extract the core, and inspect the rock mass position GP.

  An image pickup means 39 for picking up a slime generated when the boring hole 46 is formed is provided in the rock mass position measuring means 32 or the work vehicle 2, and the picked-up image data is transmitted to the wireless controller 7 to display the wireless controller 7 display (illustrated). It is also a preferred embodiment that the boring depth can be set while visually observing the property change of the slime. In other words, since the properties of the slime change near the bedrock, the drilling is interrupted at that timing and the standard penetration test is performed, so that the depth D to the appropriate bedrock can be obtained without digging the borehole 46 many times. Can be measured quickly and easily. Further, the supply and power supply of the pressure oil to the bedrock position measuring means 32 are supplied from the work vehicle 2 side.

  As shown in FIGS. 1 and 2, the assisting device 5 includes a movable pulley 22 provided on the work vehicle 2, a winch 3 installed below the first side CSa on the outer edge of the planned civil engineering work surface CS, and a wireless controller. 7 on the slope near the outer edge of the planned civil engineering work surface CS, the radio 20 that receives the command from the radio 7, the control means 21 that controls the drive of the winch 3 of the assisting device 5 based on the signal from the radio 20. A plurality of fixed points 23 provided at intervals along the outer edge of the planned work surface CS, and a plurality of fixed pulleys 24 respectively attached to the fixed points 23 at least on the first side CSa of the planned civil work surface CS. The middle part of the lifting wire 4 fed out from the winch 3 is removably guided along the outer edge of the civil engineering work planned surface CS by a plurality of fixed pulleys 24, and the tip of the lifting wire 4 is civilized. Work schedule Fixed to the fixed point 23 installed on the second side CSb at the outer edge of the CS, and fixed to the fixed point 23 or the second side CSb fixed to the fixed pulley 24 of the first side CSa and the tip of the lifting wire 4. The raising / lowering wire 4 stretched between the pulley 24 is fed to the civil engineering work planned surface CS side, and the movable pulley 22 of the work vehicle 2 is hooked on the middle portion thereof.

  The fixed pulley 24 installed at the lower end of the first side CSa is merely for guiding the elevating wire 4 to the winch 3 side, and can be omitted or provided. Is possible. Moreover, the fixed pulley 24 should just be attached to at least one of the two fixed points 23 in the upper part, and the other fixed pulleys 24 can be omitted. Furthermore, it is within the scope of the present invention that the winch 3 is set at the upper part of the planned civil engineering work surface CS so that the elevating wire 4 can be fed out and wound up without using the fixed pulley 24. Two winches 3 are installed on the work vehicle 2, and the tips of the lifting wires 4 fed from the winches 3 are fixed to the upper two places of the planned civil engineering work surface CS, and the two winches 3 are operated. Thus, it is possible to use an assisting device 5 having a well-known configuration, such as the assisting device 5 that can move the work vehicle 2 in the left-right direction and the up-down direction with respect to the planned civil engineering work surface CS.

  As shown in FIG. 1, the winch 3 includes a drum 25 around which a lifting wire 4 is wound, and a driving unit 26 that drives the drum 25 so that the rotation direction can be switched between a forward direction and a reverse direction. The configuration is such that by operating the wireless controller 7, the rotating direction of the drum 25 can be remotely controlled to feed out or wind up the lifting wire 4.

  The moving pulley 22 and the fixed pulley 24 can adopt different configurations, but it is preferable to use the same configuration because the manufacturing cost of the pulleys 22 and 24 can be reduced. The pulleys 22 and 24 will be described. As shown in FIGS. 6 to 8, a pulley body 50 on which the lifting wire 4 is hung is provided, and an upper surface plate 51 and a lower surface plate 52 are provided on both upper and lower sides of the pulley body 50. Is provided. The upper surface plate 51 and the lower surface plate 52 are constituted by a mounting plate 53 having a slightly larger plane size than the pulley body 50 and a reinforcing plate 54 elongated in the front-rear direction for reinforcing the upper surface plate 51 and the lower surface plate 52. They are connected by a spacer plate 55 provided between the sections. A rotation shaft 56 is provided in a substantially central portion of the upper surface plate 51 and the lower surface plate 52, and the pulley body 50 is rotatably supported by the rotation shaft 56 between the upper surface plate 51 and the lower surface plate 52.

  The upper surface plate 51 is divided into a main body 51a and an opening / closing plate 51b, and the opening / closing plate 51b is a closure shown by a solid line in FIG. 8 (b) with a pivot pin 57 provided at the end of the main body 51a. The lift wire 4 can be attached to and detached from the pulley body 50 in a state where the position and the open position shown in the phantom line are rotatably supported, and the open / close plate 51b is rotated to the open position. ing. In order to hold the opening / closing plate 51b in the closed position, a connecting block 58 is fixed to the rear end portion of the lower mounting plate 53, and a connecting pin 59 protruding upward is planted in the connecting block 58, and the opening / closing plate 51b. A pin hole 60 into which the connection pin 59 can be inserted is formed at the rear end of the rear end of the connection pin 59 in a state where the opening / closing plate 51b is rotated to the closed position and the connection pin 59 is attached to the pin hole 60. By attaching a pin member (not shown) to the part, the opening / closing plate 51b can be held in the closed position. A connecting tool 62 extending rearward is attached to the connecting block 58, and the fixed pulley 24 and the movable pulley 22 are attached to the rear end portion of the connecting tool 62 through a shackle 63 detachably attached to the fixed point 23 or the work vehicle 2. Each is attached to the connecting means 70.

  The connecting means 70 is for connecting the movable pulley 22 to the work vehicle 2 so as to be rotatable. The connecting means 70 will be described. As shown in FIGS. 4 and 6, a disc-shaped support plate 71 is provided substantially horizontally on the lower traveling portion 14 between the lower traveling portion 14 and the upper turning portion 15 of the work vehicle 2. In addition, a ring-shaped member 72 is provided on the outer peripheral portion of the support plate 71 over the entire circumference, and the ring-shaped member 72 is formed with guide portions 72 a that protrude to the upper and lower sides of the support plate 71. A movable member 73 having a U-shape in side view is provided on the outer peripheral portion of the support plate 71 so as to fit outwardly. The roller 74 and a plurality of rollers 75 that contact the upper and lower surfaces of the ring-shaped member 72 are provided, and the movable member 73 is rotatable only in the direction along the ring-shaped member 72 by the plurality of rollers 74 and 75. It is guided to. A pair of brackets 76 are fixed to the front surface of the movable member 73, and a connecting member 78 is rotatably supported on both brackets 76 around a substantially horizontal pivot shaft 77, and the connecting member 78 has a substantially vertical direction. The connecting pulley 79 is provided, and the movable pulley 22 is hooked to the connecting shaft 79 by a shackle 63 and is attached to the work vehicle 2 so as to be rotatable along the ring-shaped member 72 together with the movable member 73. In addition, the movable pulley 22 is supported so as to be pivotable in the vertical direction about the pivot shaft 77, and is also supported so as to be pivotable in the horizontal direction about the connection shaft 79, so that the uneven civil engineering work planned surface CS is obtained. By absorbing the swinging of the work vehicle 2 during civil engineering work, the movable pulley 22 and the lifting wire 4 can always be maintained in an appropriate positional relationship. The movable pulley 22 can be connected to the connecting shaft 79 using the connecting wire 70. In this case, by setting the length of the connecting wire 70 to be longer than the moving range of the bedrock position measuring means 32, the upper side of the work vehicle 2 is not disturbed by the movable pulley 22 and the lifting wire 4. The rock position GP at the measurement position MP can be measured.

  As shown in FIG. 7, the fixed point 23 is configured by a tree that grows at a suitable location on the outer edge of the planned civil engineering work surface CS, and the fixed pulley 24 uses a rope 80 made of a wire rope, a fiber rope, or the like as the fixed point 23. It is fixedly installed at the fixed point 23 by being wound around a tree and hooking the shackle 63 of the fixed pulley 24 on the eyes formed at both ends of the rope 80.

  In order to increase the installation strength of the fixing point 23 with respect to the inclined ground, the reinforcement that prevents the fixing point 23 from falling down by pulling the fixing point 23 to the opposite side to the pulling side of the fixing point 23 by the lifting wire 4. Means 81 are provided. The reinforcing means 81 will be described. One or a plurality of trees that grow on the side opposite to the pulling side of the lifting wire 4 with respect to the fixed point 23 are provided as the reinforcing points 82, and the trees as the fixing points 23 and the reinforcing points 82 are provided. Rope 84 is wound around each. Shackles 85 and 86 are attached to the eyes at both ends of both ropes 84, one end of a turnbuckle 87 is connected to one shackle 85, and one end of a reinforcing wire 83 is connected to the other shackle 86. ing. The other end of the turnbuckle 87 and the other end of the reinforcing wire 83 are connected by a shackle 88, and the turnbuckle 87 is rotated to apply a certain tensile force between the fixed point 23 and the reinforcing point 82, The fixing point 23 is prevented from falling down due to the tension of the lifting wire 4. However, an arbitrary number of reinforcing means 81 can be provided, and can be omitted if the installation strength of the fixing point 23 can be sufficiently secured.

  In the present embodiment, the trees that grow on the slope near the planned civil engineering work surface CS are used as the fixed points 23 and the reinforcing points 82. However, when no suitable trees are growing, as shown in FIG. In addition, a pair of holes 90 having a depth of 2 to 3 m are formed on the sloped ground at the construction position of the fixed point 23 with a distance from each other at intervals, and the anchor bolt 91 is set in the hole 90. Then, the concrete 92 is poured, the pair of anchor bolts 91 are fixed to each other at a fixed interval in an embedded manner on the inclined ground, and the connecting plate 93 connecting the upper ends of both anchor bolts 91 is fixed substantially parallel to the inclined ground. Thus, the fixing point 23 and the reinforcing point 82 can be provided. In this case, the rope 80 is inserted into the mounting hole 94 formed in the middle part of the connecting plate 93, and the fixed pulley 24 is connected to the eyes formed at both ends of the rope 80 by using the shackle 63, or is moved up and down. For example, the tip of the wire 4 is fixed. In addition, as the fixing point 23 and the reinforcing point 82, those having an arbitrary configuration other than those illustrated in FIG. 9 can be adopted.

Next, a sliding surface measuring method using the sliding surface measuring equipment 1 will be described.
First, in the setting process, as shown by a solid line in FIG. 1, a plurality of fixing points 23 are provided at intervals along the outer edge of the civil engineering work planned surface CS, and fixed pulleys 24 are attached to the plurality of fixing points 23. The winch 3 is installed below the first side CSa of the planned civil engineering work surface CS. Next, the elevating wire 4 fed out from the winch 3 is guided from the first side CSa to the second side CSb along the outer edge of the planned civil engineering work surface CS by a plurality of fixed pulleys 24, and the tip end portion of the elevating wire 4 Is fixed to the uppermost fixed point 23 on the second side CSb of the planned civil engineering work surface CS. Next, the lifting / lowering wire 4 stretched between the uppermost fixed pulley 24 of the first side CSa and the fixing point 23 to which the lifting / lowering wire 4 is fixed is drawn out to the civil engineering work planned surface CS side, and in the middle thereof The moving pulley 22 of the work vehicle 2 is hooked, and the sliding surface measuring equipment 1 is set on the civil engineering work planned surface CS. In addition, a fence F is installed in advance along the lower edge of the planned civil engineering work surface CS so that earth and sand do not fall below the civil engineering work site.

  Note that the number of the fixed points 23 can be arbitrarily set according to the height and shape of the planned civil engineering work surface CS. In addition, when trees are growing on the planned civil engineering work surface CS, a plurality of fixed pulleys are installed, and then the middle part of the lifting wire 4 is guided by the plurality of fixed pulleys, and the end of the lifting wire 4 is Is fixed to the work vehicle 2 by pulling the lifting wire 4 from the fixed pulley 24 on one side upper part of the planned civil engineering work surface CS to the lower part of the planned civil engineering work surface CS. Trees are cut sequentially with work vehicle 2 in order from the lower side while assisting in a single suspended state, and a certain range of trees along cutting wire 4 is cut down, and then fixed pulley 24 that feeds lifting wire 4 is next to it. It is replaced with the fixed pulley 24, and trees are cut in order from the upper side while supporting the work vehicle 2 with the lifting wire 4, and the above operations are repeated in order to sequentially cut the trees on the planned civil engineering work surface CS. . And as mentioned above, while fixing the end part of the raising / lowering wire 4 to the fixing point 23, the moving pulley 22 of the work vehicle 2 is hooked on the middle part of the raising / lowering wire 4, and the sliding surface measuring equipment 1 is planned for civil engineering work. It will be set on the surface CS. However, tree cutting work can also be performed by other methods.

  Next, in the measurement process, the winch 3 and the work vehicle 2 are remotely operated in a safe place where the work vehicle 2 can be visually observed, and the winch 3 is operated so that the lifting wire 4 is not loosened. The work vehicle 2 is moved to the vicinity of the measurement position MP above the work scheduled surface CS. At this time, the upward movement of the planned civil engineering work surface CS of the work vehicle 2 is performed by the travel of the work vehicle 2 by the crawler and the hoisting force of the lifting wire 4 by the winch 3, and the horizontal movement and downward movement are performed. The work vehicle 2 is swung in the traveling direction and traveled in the same manner as the movement on the flat ground while applying a certain tension to the lifting wire 4 to prevent the work vehicle 2 from rolling over. The movable range of the work vehicle 2 is a pair of constant pulleys 24 at the top of the first side CSa and the second side CSb of the planned civil engineering work surface CS among the fixed pulleys 24 on which the lifting wire 4 is hung. If the angle θ of the elevating wire 4 reaching the movable pulley 22 stretched in a V-shape in the region between them exceeds 120 °, a large tension acts on the elevating wire 4, so the angle θ is 120 Since it is set in a range below the uppermost constant pulley 24 so as to be less than or equal to 0 °, the work is performed within this range.

  Thus, when the standard penetration test is performed after the work vehicle 2 is moved to the vicinity of the measurement position MP, a boring hole 46 is first formed at the measurement position MP by the boring machine 45 as shown in FIG. Although the depth of the boring hole 46 can be set arbitrarily, the slime at the time of boring is imaged by the imaging means 39, and the image of the slime is visually observed on a display (not shown) of the wireless controller 7 to change the property of the slime. By drilling while observing, the depth of the slime can be set to the depth when it is near the bedrock. Next, as shown in FIG. 5, instead of the boring machine 45, the standard penetration tester 40 is set in the boring hole 46, the standard penetration test is performed, and the measurement position MP when the N value becomes 20 or more. Is measured, and the three-dimensional coordinates of the rock mass position GP at the measurement position MP are calculated.

  In this way, after measuring the rock position GP with respect to the upper part of the planned civil engineering work surface CS, in the next wire switching step, in a state where the work vehicle 2 is prevented from overturning, as shown by a virtual line in FIG. The lifting wire 4 is removed from the uppermost fixed pulley 24 of the first side CSa, and the fixing point 23 to which the tip of the lifting wire 4 is fixed is connected to the uppermost portion of the second side CSb. After performing one or both of the operations of switching from the fixed point 23 to the lower fixed point 23, the slack of the lifting wire 4 is wound up by the winch 3, and the work vehicle 2 is moved downward, In the same manner as in the measurement step, the rock position GP of the next stage is measured, and thereafter, the work of switching the uppermost position of the lifting wire 4 to the lower side and the work of measuring the rock position GP by the work vehicle 2 are alternately performed. Go, civil engineering work plan surface CS It will measure the rock position GP from the top in order. In FIG. 1, when the civil engineering work planned surface CS for measuring the rock mass position GP by the work vehicle 2 is shifted from the uppermost first step to the second lower step, the uppermost fixed pulley 24 is used. When the lifting / lowering wire 4 is removed and the second stage is shifted from the second stage to the lower third stage, the lifting / lowering wire 4 is removed from the second fixed pulley 24 from the top, and the third stage and the lower side thereof. When moving to the fourth stage, the lifting / lowering wire 4 is removed from the third fixed pulley 24 from the top, and the fixing point 23 of the lifting / lowering wire 4 is moved to the fixing point 23 in the middle of the second side CSb. I will let you. In addition, the installation location of the fixed pulley 24 and the work of replacing the lifting wire 4 with respect to the fixed pulley 24 can be arbitrarily set according to the shape of the planned civil engineering work surface CS.

  Thus, after sequentially measuring the rock mass position GP of the planned civil engineering work surface CS, the sliding surface SF is calculated based on the three-dimensional coordinate data of these rock mass positions GP. Since the rock mass positions GP at the measurement positions MP every 10 m in the distance are measured, the calculated sliding surface SF (see FIG. 2) has a good accuracy suitable for the actual rock mass position GP. For this reason, if civil engineering work is performed on the inclined surface based on the sliding surface SF, it is possible to reduce wasteful civil engineering work as much as possible, thereby shortening the construction period of the civil engineering work and reducing costs. In the present embodiment, only the sliding surface SF of the planned civil engineering work surface CS is measured, but a bucket or a rock drilling machine is attached to the arm 17 of the work vehicle 2 in place of the rock mass position measuring means 32. The civil engineering work can be performed sequentially from the upper side while moving the work vehicle 2 along the planned civil engineering work surface CS in the same manner as the measurement work. It is also possible to perform the measurement of the sliding surface SF and the civil engineering work in parallel by alternately measuring the sliding surface SF and the civil engineering work from the upper side of the planned civil engineering work surface CS.

Front view of equipment for measuring sliding surfaces on slopes Longitudinal cross section near work vehicle when measuring rock position Explanatory diagram of control system for sliding surface measuring equipment Side view of work vehicle Illustration of standard penetration testing machine Plan view of moving pulley and connecting means Illustration of fixed pulley installation structure (a) is a plan view of the fixed pulley, (b) is a side view of the fixed pulley. Illustration of installation structure of fixed points and reinforcing points

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding surface measuring equipment 2 Work vehicle 3 Winch 4 Elevating wire 5 Auxiliary device 6 Rock bed position measuring device 7 Radio controller 10 Radio 11 Various hydraulic equipment 12 Various electric equipment 13 Control means 14 Lower traveling part 15 Upper turning part 16 Boom 17 Arm 18 Hydraulic cylinder 20 Radio 21 Control means 22 Moving pulley 23 Fixed point 24 Fixed pulley 25 Drum 26 Drive means 30 Radio 31 Control means 32 Rock bed position measurement means 33 Turning angle measurement means 34 Angle measurement means 35 Angle measurement means 36 Angle Measuring means 37 Gradient measuring means 38 Current position measuring means 39 Imaging means 40 Standard penetration testing machine 41 Knocking block 42 Boring rod 43 Sampler 44 Drive hammer 45 Boring machine 46 Boring hole 50 Pulley body 51 Top plate 51a Body 51b Opening / closing plate 52 Below Plate 53 Mounting plate 54 Reinforcement plate 55 Spacer plate 56 Rotating shaft 57 Pivot pin 58 Connection block 59 Connection pin 60 Pin hole 62 Connection tool 63 Shackle 70 Connection means 70 Connection wire 71 Support plate 72 Ring-shaped member 72a Guide portion 73 Movable Member 74 roller 75 roller 76 bracket 77 pivot shaft 78 connecting member 79 connecting shaft 80 rope 81 reinforcing means 82 reinforcing point 83 reinforcing wire 84 rope 85 shackle 86 shackle 87 turnbuckle 88 shackle 90 hole 91 anchor bolt 92 concrete 93 connecting plate 94 Mounting hole CS Civil engineering work planned surface CSa First side CSb Second side F Fence W Worker MP Measurement position GP Rock bed position SF Sliding surface

Claims (13)

  Using a self-propelled work vehicle and a lifting wire stretched between the work vehicle and the upper part of the slope, an assist device for assisting the work vehicle with a winch to the upper side of the slope, and a rock position measurement provided on the work vehicle Using a sliding surface measuring facility provided with means, and moving the work vehicle to a preset measurement position while assisting the work vehicle to the upper side of the slope by the assisting device, and the rock position measurement means at the measurement position A method for measuring a sliding surface of an inclined land, characterized in that a sliding surface is obtained by measuring and sequentially measuring rock positions at a plurality of measuring positions.   2. The slope according to claim 1, wherein the rock position is measured in order from the measurement position on the upper side of the slope, the civil engineering work is performed on the slope with a work vehicle, and the civil work is performed while measuring the sliding surface in order from the upper side. Sliding surface measurement method.   The method of measuring a sliding surface of an inclined land according to claim 1 or 2, wherein a geological survey boring machine is detachably provided on a work vehicle as the rock mass position measuring means.   The sliding surface measurement method of the sloping ground of any one of Claims 1-3 which provided the standard penetration testing machine in the work vehicle so that attachment or detachment was possible as the said rock mass position measurement means.   The method for measuring a sliding surface of an inclined land according to any one of claims 1 to 4, further comprising a current position measuring unit that measures a current position of the work vehicle.   The method for measuring a sliding surface of an inclined land according to any one of claims 1 to 5, further comprising remote operation means for remotely operating the work vehicle.   As the assisting device, a moving pulley provided on the work vehicle, a pair of fixed points provided on the outer edge of the planned civil engineering work surface on the sloping ground, a fixed pulley fixed to at least one fixed point, a civil engineering work planned surface A winch provided under the outer edge, guides the lifting wire fed from the winch to the other fixed point via a fixed pulley, and moves the lifting wire stretched between the two fixed points toward the planned civil engineering work side The method for measuring a sliding surface of an inclined land according to any one of claims 1 to 6, wherein the sliding surface of a work vehicle is used that is extended and hooked with a moving pulley of a work vehicle in the middle thereof. A self-propelled work vehicle,
An assisting device for assisting the work vehicle with a winch to the upper side of the slope using a lifting wire stretched between the work vehicle and the upper part of the slope;
Rock mass position measuring means provided in the work vehicle;
Equipment for measuring sliding surfaces on slopes.   The equipment for measuring a sliding surface of an inclined land according to claim 8, wherein a geological survey boring machine is detachably provided on a work vehicle as the rock mass position measuring means.   10. Sliding surface measurement equipment for slopes according to claim 8 or 9, wherein a standard penetration testing machine is detachably provided on a work vehicle as the rock mass position measuring means.   11. The sliding surface measurement facility for sloping ground according to claim 8, further comprising a current position measuring unit configured to measure a current position of the work vehicle.   The slip surface measuring equipment for sloping ground according to any one of claims 8 to 11, further comprising a remote control means for remotely operating the work vehicle. As the assisting device, a moving pulley provided on the work vehicle, a pair of fixed points provided on the outer edge of the planned civil engineering work surface on the sloping ground, a fixed pulley fixed to at least one fixed point, a civil engineering work planned surface A winch provided at the lower part of the outer edge, guiding the lifting wire fed out from the winch to the other fixed point via a fixed pulley, and the lifting wire stretched between the two fixed points to the planned civil engineering work side The equipment for measuring a sliding surface of an inclined ground according to any one of claims 8 to 12, wherein the equipment is one that is extended and hooked with a moving pulley of a work vehicle in the middle thereof.

Images