JP3733195B2 - Vertical hole drilling rig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a drilling device for drilling a vertical hole for accommodating a foundation pile of a building, for example.
[0002]
[Prior art]
Conventionally, there is a case where a vertical hole is excavated and a concrete wall is formed on the inner periphery of the vertical hole in order to accommodate a foundation pile of a building such as a building.
[0003]
In the case of soft rock excavation where the ground to be excavated is soft rock, such vertical hole excavation work is performed while the operator operates the excavator supported by the lifting mechanism so as to be movable up and down in the deepest part of the vertical hole. On the other hand, in the case of hard rock excavation where the ground is composed of hard rock, it was usually performed while crushing the deepest part of the vertical hole by blasting.
[0004]
[Problems to be solved by the invention]
However, in such conventional vertical hole excavation, it is difficult to obtain a high working efficiency and high excavation accuracy because it is not easy to operate the excavator in the deepest part of the vertical hole. Further, the deepest part of the vertical hole, which is a work place, is not a good working environment for the worker, and in this sense, an excavator that can easily perform an accurate automatic operation has been desired.
[0005]
Conventionally, excavation scraps generated as a result of vertical hole excavation have been scraped and processed by excavators and buckets after excavation work, which has also caused a reduction in work efficiency.
[0006]
Furthermore, the work machine had to be changed in hard rock drilling and soft rock drilling, which was inefficient. That is, since the output of conventional excavators was not sufficient, blasting work was required for hard rock excavation.
[0007]
The present invention has been made by paying attention to such problems, and while greatly improving the efficiency and accuracy of excavation work, it is suitable for automatic operation and can be used for various excavation objects. The purpose is to provide.
[0008]
[Means for Solving the Problems]
  The present inventionA work implement support that is installed on the lower end side of the excavator main body and is rotatable about the central axis of the excavator main body, a work implement support drive means for rotationally driving the work implement support, and a lower portion of the work implement support A cutter device provided with a cutter head that is rotatably installed in the vertical direction and that can be driven to rotate at the tip side, a cutter device vertical rotation drive means for driving the vertical rotation of the cutter device, and a cutter head Cutter head driving means for rotationally driving;A vacuum device capable of sucking drilling debris, a suction hose for sucking drilling debris extending from the vacuum device, and a suction port operating means which holds the suction port side of the suction hose and which is installed below the work implement support part. The vacuum device comprises a main vacuum device and a sub-vacuum device located below the main vacuum device, a sub-vacuum device is interposed in the suction hose between the main vacuum device and the suction port, and at the deepest part of the vertical hole. In a vertical hole excavator that performs excavation work, a conveyor device that is provided below the sub-vacuum device and collects excavated waste sucked into the sub-vacuum device and can convey the excavated waste in both the front and rear directions, and before and after the conveyor device A pair of waste bins that are provided and can receive excavation waste from the conveyor device, and a puller that raises the waste bins And a raising means.
[0015]
[Action]
MosquitoBy setting the predetermined vertical rotation angle of the cutter device to a predetermined angle by the vertical rotation driving means of the cutter device, the cutter head is arranged at a predetermined position of the deepest part of the vertical hole, and in this state, the work implement support unit is The cutter head is rotated by the cutter head driving means while being driven to rotate by the work implement support unit driving means with respect to the excavator body. By performing such excavation work while sequentially changing the vertical rotation angle of the cutter device, the excavation work can be performed over the entire deepest portion of the vertical hole. In this case, the cutter head performs excavation work while moving on the circumference of a predetermined diameter, the excavation work is performed uniformly and efficiently in an accurate circular shape, and particularly when forming the inner peripheral surface of the vertical hole, An accurate circular excavation surface can be easily formed. Moreover, once the vertical rotation angle of the cutter device is set, it is not necessary for the operator to operate the excavator, so automatic operation can be performed, and the operator must have retreated from the excavation work site. This can significantly improve the safety of excavation work.
[0016]
MosquitoSince the utter head driving means is fixed to the side surface of the cutter device, a large cutter head driving means can be provided without increasing the length of the cutter device. As a result, it is possible to increase the output of the cutter device, it is possible to cope with hard rocks by excavation work with the cutter device, the range of work that can be handled with the same device is greatly expanded, and blasting Use can be reduced to a minimum.
[0017]
DiggingSince the shavings are sucked up and processed by the vacuum device, it is not necessary to scrape the excavating scraps with an excavator, a bucket or the like, and the excavating scraps are easily processed. Further, during excavation work by the cutter device that is performed on a predetermined circumference with one rotation of the work implement support portion, the operation means installed on the work implement support portion as well as the cutter device is 1 on the same circumference as the cutter device. Since the suction port of the suction hose that is rotated and gripped by the operating means can sequentially perform the work of sucking excavated waste at a place excavated by the cutter device, the processing of the excavated waste by the vacuum device is performed efficiently.
[0018]
DiggingSufficient suction force that combines the main vacuum device and sub-vacuum device acts on the suction port for sucking excavation waste at the cutting work site, and even heavy excavation debris is sucked up to the sub-vacuum device. Since light drilling waste is further sucked up to the main vacuum device only by the suction force of the main vacuum device, various weights of drilling waste are efficiently sucked up.
[0019]
SThe excavated waste sucked up to the vacuum device is alternately conveyed to a pair of waste boxes provided on both front and rear sides of the conveyor device by a conveyor device that can be reversed in both the front and rear directions, and these waste boxes are alternately lifted by the lifting means. Since the excavation waste is disposed of and the excavation waste from the conveyor device is conveyed to the other waste bin during the lifting operation of the one waste bin, the excavation waste is continuously and efficiently discarded. Done.
[0020]
MosquitoSince the breaker can be replaced in place of the cutter device, even the hard ground that cannot be handled by the cutter device can be crushed by the breaker.
[0021]
DiggingSince the rock drilling machine is telescopically housed in the main body of the rock drilling device, the rock drilling machine can be immediately extended to the ground side as needed, such as when working on hard ground that cannot be handled by a breaker. Holes for blasting can be formed in the ground by rock drilling, and the ground can be crushed by blasting.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0023]
As shown in FIGS. 1 to 3, the columnar center frame 2 constituting the main body of the excavator 1 has a plurality of (3) supporting means on a wall surface (concrete wall surface) 4 formed on the inner periphery of the vertical hole 3. Main body gripper device 5 and a plurality of (three) sub gripper devices 6. The center frame 2 is fixedly provided with a control unit 7 including an electromagnetic control panel and a power unit, and various jacks described later operate upon receiving hydraulic oil supplied from the power unit in the control unit. The supply of the hydraulic oil is controlled via an electromagnetic control panel in accordance with, for example, a wireless instruction from an operator in the work gondola 8 that can be moved up and down by the crane device 9.
[0024]
The main body gripper device 5, which is an extendable jack, is supported near the lower end of the center frame 2 on the base end side, thereby extending horizontally from the center frame 2 and is usually supported by the rod 5 a. The front end of each is in contact with the wall surface 4. In this state, the main body gripper device 5 is caused to generate a pressing force to extend in the extending direction, and the center frame 2 is moved to a predetermined position on the wall surface 4 by the frictional force generated between the tip of the rod 5a and the wall surface 4. Supported by
[0025]
On the other hand, the sub gripper device 6, which is an extendable jack like the main body gripper device 5, is fixed above the main body gripper device 5 via the gripper upper and lower jacks 10. That is, the gripper upper and lower jacks 10 are fixed to the center frame 2 (and the main body gripper device 5), and are erected vertically to the side of the center frame 2, and at the distal end side of the telescopic rod 10a, the sub gripper device. The base end side of 6 is supported. The sub gripper device 6 is supported in a state of extending radially from the center frame 2 side in the same manner as the main body gripper device 5, and normally the tip of the rod 5 a is brought into contact with the wall surface 4 to extend. The center frame 2 is supported together with the main body gripper device 5 by a pressing force that tends to extend in the direction.
[0026]
As will be described later, the main body gripper device 5 and the sub gripper device 6 move the center frame 2 up and down by extending or contracting the gripper upper and lower jacks 10 in a state where one of the main body gripper device 5 and the sub gripper device 6 is disconnected from the wall surface 4. In this case, the sub gripper device 6 can be stably moved relative to the center frame 2 while being guided on the base end side by the guide rail 11 extending along the side of the center frame 2. .
[0027]
Now, below such excavator 1 main body (center frame 2), as a characteristic part of the present invention, a working machine support portion 12 that is rotatable about the central axis of the center frame 2 is provided. That is, the work implement support portion 12 is installed on the outer peripheral side of the annular bearing 13 that houses the lower end portion of the center frame 2 on the inner peripheral side, and is rotatable around the annular bearing 13. The rotation of the work implement support portion 12 is driven by a hydraulic motor 20 with a reduction gear installed on the center frame 2 side (see FIG. 2).
[0028]
Further, the work machine support section 12 supports a cutter device 15 at a predetermined position below the work machine support 12 via a pin 14 so as to be rotatable up and down. Between the cutter device 15 and the work machine support portion 12, an extendable cutter upper / lower jack 16 is interposed, and by the extension / contraction of the cutter upper / lower jack 16, the vertical rotation angle of the cutter device 15 is variable, The position of the cutter head 17 supported at the tip of the cutter device 15 can be changed from the center side to the outer peripheral side of the vertical hole bottom portion (vertical hole deepest portion) 3a.
[0029]
When the position of the cutter head 17 at the vertical hole bottom 3a is set at a predetermined distance from the center of the vertical hole 3 and the working machine support unit 12 is rotationally driven by the hydraulic motor 20, the cutter head 17 is positioned on the vertical hole bottom 3a. And move while drawing a circle with a predetermined diameter to excavate the bottom 3a of the vertical hole. Therefore, if this excavation work on the circumference is performed while sequentially changing the rotation angle of the cutter device 15, the excavation work can be made to proceed evenly over the entire area of the vertical hole bottom 3a. In the outermost periphery, a drilling surface having a predetermined diameter can be formed with high accuracy.
[0030]
Further, in the excavation work by the rotation of the work machine support unit 12 after the rotation angle of the cutter device 15 is set, the support by the operator is unnecessary, and it is sufficient to perform automatic operation. The gondola 8 may be raised and retracted outside the vertical hole 3. Therefore, according to the present invention, the safety of excavation work is significantly improved.
[0031]
In addition, since the hydraulic motor 20 includes a speed reducer, it is possible to adjust the number of rotations and the rotational force of the work implement support unit 12 in accordance with the state of the ground that is the excavation target. It is possible.
[0032]
Further, the cutter head 17 is driven by a cutter electric motor 21 fixed on the side surface of the cutter device 15 and can rotate itself. By this rotation, the cutter provided on the outer periphery of the cutter head 17 is the ground of the vertical hole bottom 3a. It is designed to crush.
[0033]
Since the cutter motor 21 is fixed to the side surface of the cutter device 15, the large cutter motor 21 can be provided without increasing the length of the cutter device 15. As a result, the cutter device 15 can have a large output, and it is possible to cope with hard rocks by excavation work by the cutter device 15, and the use of blasting can be minimized.
[0034]
The cutter device 15 has a built-in speed reducer for the electric motor 21, and the rotation speed and excavation force (rotation force) of the cutter head 17 are variable so that it can freely respond to the hardness of the ground to be excavated. It has become.
[0035]
In addition, a breaker 25 that can be turned up and down by a breaker vertical jack 24 is attached to the work implement support section 12 via a pin 14 as shown in FIG. It is also possible to attach. Thereby, when the ground to be excavated is so hard that the cutter device 15 cannot cope with it, the ground can also be crushed by the breaker 25.
[0036]
Further, the excavator 1 houses a rock drill 26 inside the center frame 2 so as to be extendable and retractable toward the vertical hole bottom 3a side. As a result, the rock drilling machine 26 is extended to the vertical hole bottom 3a side as needed to form a blasting hole in the ground by rock drilling work, such as when dealing with hard ground that the breaker 25 cannot handle. The ground can be crushed by blasting. Thus, it can respond immediately to blasting construction.
[0037]
The excavator 1 includes a main vacuum device 30 and a sub-vacuum device 31 as a mechanism for processing excavation lump and dust generated from such excavation work. The main vacuum device 30 is installed on the ground outside the vertical hole 3 and is connected to a sub vacuum device 31 placed above the center frame 2 via a suction hose 32. A suction hose 33 further extends from the sub-vacuum device 31, and the tip side of the suction hose 33 reaches the bottom 3a of the vertical hole.
[0038]
As shown well in FIG. 2, the suction port 33 a at the tip of the suction hose 33 is gripped by the tip of a work arm 34 fixed on the side opposite to the cutter device 15 of the work machine support 12, and the work machine support 12 It is possible to move to an arbitrary point where the suction process should be performed by a combination of the rotation operation and the expansion / contraction operation of the work arm 34.
[0039]
The suction force of the magnitude | size which combined the main vacuum apparatus 30 and the sub vacuum apparatus 31 acts on the suction inlet 33a, and the drilling waste inhaled from the suction inlet 33a is taken in into the sub vacuum apparatus 31. FIG. The drilling waste introduced into the sub-vacuum device 31 in this manner is not sucked upward by the suction force of the main vacuum device 30 alone, and thus is accumulated in the sub-vacuum device 31. When the amount exceeds the predetermined amount, the discharge port 30a below the sub-vacuum device 31 is opened, and the excavated waste is dropped by its own weight onto the conveyor 35 installed on the center frame 2 below the sub-vacuum device 31. .
[0040]
The conveyor 35 is disposed below the conveyor 35 and disposed on the support base 38 installed in the center frame 2 to the disposal boxes 36 and 37 placed on both the front and rear sides (left and right sides in FIG. 1) of the conveyor 35. In order to convey excavation waste alternately, it operates alternately in both the front and rear directions.
[0041]
In this way, for example, the excavation waste accumulated in the disposal box 36 on the left side of FIG. 1 is carried out of the vertical hole 3 by the crane 39 for each disposal box 36 and disposed. On the other hand, at the time of disposal of the excavation waste on the side of the disposal box 36, the conveyor 35 is reversed and transports the excavation waste to the disposal box 37 side on the right side of FIG. 36 is returned by the crane 39 to a predetermined position on the left side of the conveyor 35 of the support base 38. Then, this time, when disposing of the excavation waste in the disposal box 37, the conveyor 35 is inverted again to accumulate new excavation waste on the disposal box 36 side. In this way, the disposal of the excavation waste can be performed continuously and efficiently by using the disposal boxes 36 and 37 alternately.
[0042]
Now, heavy excavation debris such as excavated lump is disposed of at the point where it is sucked up to the sub-vacuum device 31, but light excavation debris such as dust is further sucked up to the main vacuum device 30, and this main It is disposed of from the vacuum device 30 to the outside. Thus, in the present invention, the main vacuum device 30 and the sub-vacuum device 31 are provided as a vacuum device for sucking up the excavation waste, and the heavy excavation waste is formed in the vertical hole 3 with a sufficient suction force that combines the main vacuum device 30 and the sub-vacuum device 31. While sucking up from a lower excavation work place to a predetermined collection place, light excavation debris such as dust is further sucked up and processed by the suction force of the main vacuum device 30, so that the excavation waste can be disposed of reasonably and efficiently. be able to.
[0043]
The excavator 1 includes a concrete mold 42 as a mechanism for forming the wall surface 4 on the inner periphery of the excavated vertical hole 3. The concrete mold 42 is composed of a plurality of plate-like members supported below the center frame 2 so as to be movable up and down via the support device 41 and movable in the direction of the inner peripheral surface of the vertical hole 3. The members move in the inner peripheral direction of the vertical hole 3 and are connected in an annular shape to form one mold.
[0044]
After the excavation work, the concrete form 42 descends to a position facing the inner peripheral surface of the vertical hole 3 newly excavated below the wall surface 4. And concrete placement between this concrete formwork 42 and the inner peripheral surface of the vertical hole 3 is performed by conveying the concrete from a concrete plant by the concrete hose 43, as shown in FIG. Note that the amount of concrete placement through the concrete hose 43 is controlled by operating an electric pinch valve 44 provided in the middle of the concrete hose 43 with a valve operation panel 45.
[0045]
Next, the operation will be described.
[0046]
In excavation work using the excavator 1, first, as shown in FIG. 6A, the excavator 1 in which the cutter device 15 is supported by the work implement support portion 12 is placed on the wall surface 4 of the vertical hole 3 that has already been formed. The main body gripper device 5 and the sub gripper device 6 support the predetermined portion or a predetermined portion of the inner peripheral surface of the tower constructed on the ground above the excavation site. In FIG. 6A, excavation work is started from a state in which the vertical hole 3 is already formed to a certain depth from the ground using, for example, a power shovel.
[0047]
Subsequently, as shown in FIG. 6B, the rotation angle of the cutter device 15 is changed to bring the cutter head 17 into contact with a predetermined place of the bottom 3 a of the vertical hole 3.
[0048]
Further, as shown in FIG. 6C, while the work implement support portion 12 is rotated once with respect to the center frame 2, the cutter device 15 is driven to perform excavation work, and the work implement support portion 12 cutter On the opposite side of the device 15, excavation debris is sucked from the suction port 33 a of the suction hose 33 movable by the work arm, sucked upward, and disposed outside the vertical hole 3.
[0049]
In this case, once the rotation angle of the cutter device 15 is set, the cutter head 17 is sequentially guided to a predetermined excavation location by the rotation of the work implement support unit 12, so that the work efficiency and excavation accuracy of the excavation work are increased. The excavation work can be easily automated. Therefore, the worker can evacuate from the vicinity of the work place, and the safety of excavation work is also improved.
[0050]
In addition, heavy drilling debris is sucked up to the sub-vacuum device 31 by a suction force that combines the main vacuum device 30 and the sub-vacuum device 31, while light drilling debris such as dust is further sucked into the main vacuum device 30 only by the main vacuum device 30. Since it is sucked up and processed by force, a sufficient suction force is secured even for heavy excavated waste, and at the same time, dust and the like are rationally processed.
[0051]
In addition, heavy excavation scraps are alternately conveyed to a pair of disposal boxes 36 and 37 provided on both sides of the conveyor by a conveyor 35 capable of reversing forward and reverse, and the disposal boxes 36 and 37 are alternately conveyed by a crane 39. Since the drilling waste is disposed by being lifted up, the drilling waste is continuously and efficiently discarded.
[0052]
When such excavation work is completed, as shown in FIG. 7 (d), the cutter device 15 is rotated upward and stored, and the work arm 34 and the suction port 33a of the suction hose 33 are also folded upward. Store with.
[0053]
Then, as shown in FIG. 7 (e), the main body gripper device 5 is contracted to release the grip by the main body gripper device 5 on the wall surface 4, and the excavator 1 is supported only by the sub gripper device 6 and is brought into a contracted state. The gripper upper and lower jacks 10 are extended, the center frame 2 is lowered by the extension amount, and the main body gripper device 5 is extended again to grip the wall surface 4 as shown in FIG.
[0054]
Then, as shown in FIG. 8 (g), the main gripper device 5, the sub gripper device 6, and the gripper vertical jack are contracted by contracting the sub gripper device 6 to release the grip to the wall surface 4 and contracting the gripper vertical jack 10. The relationship of 10 is returned to the initial state, the sub gripper device 6 is extended, and the excavator 1 is supported by the main body gripper device 5 and the sub gripper device 6 again.
[0055]
Subsequently, as shown in FIG. 8 (h), the concrete mold 42 is set and concrete placement is performed. After the concrete placement is finished, the concrete mold 42 is stored as shown in FIG. 8 (i). Then, returning to the state of FIG. 6A, the excavation process of FIG. 6 to FIG. 8 is repeated, and excavation work proceeds.
[0056]
【The invention's effect】
As described above, according to the first invention, the cutter head is set to a predetermined position in the deepest part of the vertical hole by setting the predetermined vertical rotation angle of the cutter device to a predetermined angle by the cutter device vertical rotation driving means. In this state, the cutter head is rotated and driven by the cutter head driver while the operator is supported by the cutter for driving the excavator. By performing such excavation work while sequentially changing the vertical rotation angle of the cutter device, the excavation work can be performed over the entire deepest portion of the vertical hole. In this case, the cutter head performs excavation work while moving on the circumference of a predetermined diameter, the excavation work is performed uniformly and efficiently in an accurate circular shape, and particularly when forming the inner peripheral surface of the vertical hole, An accurate circular excavation surface can be easily formed. Moreover, once the vertical rotation angle of the cutter device is set, it is not necessary for the operator to operate the excavator, so automatic operation can be performed, and the operator must have retreated from the excavation work site. This can significantly improve the safety of excavation work.
[0057]
According to the second invention, since the cutter head driving means is fixed to the side surface of the cutter device, a large cutter head driving means can be provided without increasing the length of the cutter device. As a result, it is possible to increase the output of the cutter device, it is possible to cope with hard rocks by excavation work with the cutter device, the range of work that can be handled with the same device is greatly expanded, and blasting Use can be reduced to a minimum.
[0058]
According to the third aspect, since the excavation waste is sucked up and processed by the vacuum device, it is not necessary to scrape the excavation waste with an excavator, a bucket or the like, and the excavation waste treatment is easily performed. Further, during excavation work by the cutter device that is performed on a predetermined circumference with one rotation of the work implement support portion, the operation means installed on the work implement support portion as well as the cutter device is 1 on the same circumference as the cutter device. Since the suction port of the suction hose that is rotated and gripped by the operating means can sequentially perform the work of sucking excavated waste at a place excavated by the cutter device, the processing of the excavated waste by the vacuum device is performed efficiently.
[0059]
According to the fourth aspect of the invention, a sufficient suction force that combines the main vacuum device and the sub-vacuum device acts on the suction port for sucking the excavation waste at the excavation work site, and even the heavy excavation waste reaches the sub-vacuum device. On the other hand, light excavation debris such as dust is further sucked up to the main vacuum device only by the suction force of the main vacuum device, so that excavation debris of various weights is efficiently sucked up.
[0060]
According to the fifth invention, the excavation waste sucked up to the sub-vacuum device is alternately conveyed to a pair of disposal boxes provided on both front and rear sides of the conveyor device by a conveyor device that can be reversed in both front and rear directions, The boxes are alternately lifted by the lifting means to dispose of the excavation waste, and during the lifting operation of one of the waste bins, the excavation waste from the conveyor device is transported to the other waste bin. Disposal is done continuously and efficiently.
[0061]
According to the sixth aspect of the invention, since the breaker can be replaced instead of the cutter device, the breaker can be crushed even on hard ground that cannot be handled by the cutter device.
[0062]
According to the seventh aspect of the invention, the rock drill is housed in the main body of the excavator so that it can be extended and retracted. It can be extended to the ground side, a hole for blasting can be formed in the ground by rock drilling, and the ground can be crushed by blasting.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a plan view of the same.
FIG. 4 is a front view of the same.
FIG. 5 is a front view showing the state of concrete placement.
FIG. 6 is an explanatory view showing a procedure for performing excavation work in the same manner.
FIG. 7 is also an explanatory diagram.
FIG. 8 is also an explanatory diagram.
[Explanation of symbols]
1 Drilling rig
2 Center frame
3 vertical holes
4 Wall surfaces
5 Main body gripper device
6 Sub gripper device
7 Control unit
10 Gripper upper and lower jacks
12 Working machine support
15 Cutter device
16 Cutter upper and lower jacks
17 Cutter head
20 Hydraulic motor
21 Electric motor for cutter
26 Jackhammer
30 Main vacuum device
31 Sub-vacuum device
32 Suction hose
33 Suction hose
33a Suction port
34 Working arm
35 Conveyor
36 Waste box
37 Waste box
39 crane

Claims (1)

A supporting means for supporting the body up and down freely on the wall surface of the inner periphery of the vertical hole ;
A work implement support that is installed on the lower end side of the excavator body and is rotatable about the central axis of the excavator body;
A working machine supporting part driving means for rotationally driving the working machine supporting portion,
A cutter device with a rotating drivable cutter head to the distal end side while being installed rotatably in the vertical direction below the working machine supporting portion,
A cutter unit vertical rotation driving means for driving the vertical rotation of the cutter device,
Cutter head driving means for rotationally driving the cutter head;
A vacuum device capable of sucking drilling waste;
A suction hose for digging waste suction extending from the vacuum device;
A suction port operating means for gripping the suction port side of the suction hose and installed below the work implement support part, and
The vacuum device comprises a main vacuum device and a sub vacuum device located below the main vacuum device, and a sub vacuum device is interposed in the suction hose between the main vacuum device and the suction port,
In the vertical hole drilling device that performs excavation work in the deepest part of the vertical hole,
A conveyor device that is provided below the sub-vacuum device and that collects the excavation waste sucked up by the sub-vacuum device and can convey the excavation waste in both the front and rear directions, and excavation waste from the conveyor device that is provided before and after the conveyor device. A vertical hole excavating apparatus comprising a pair of disposal boxes capable of receiving the waste and a lifting means for lifting the disposal boxes.

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