KR20190100125A - Method for excavating vertical shaft - Google Patents

Abstract

The present invention provides a method for excavating a vertical shaft, using an excavation system for a vertical shaft, capable of excavating a vertical shaft while preventing subsidence of the surrounding ground without a risk of the structure collapsing. According to an embodiment of the present invention, the method for excavating a vertical shaft includes: a step of mounting a vertical shaft excavating device at a position in which the vertical shaft is going to be installed, wherein the vertical shaft excavating device includes an inner case and an outer case enclosing the vertical shaft and forming an inner space by being spaced apart, the excavating device installed in the inner space, and a frame unit rotating along the inner space; a step of fixing the vertical shaft excavating device onto the ground in which the vertical shaft is formed; a step of forming at least one or more first holes on the ground while moving the excavating device in a first direction; a step of forming a second hole connected to the first hole while moving the excavating device is moved in a second direction crossing the first direction along the frame unit; a step of inserting the inner case and the outer case with the frame unit into the ground exposed after the second hole is formed by pressing the frame unit; a step of installing a lining along the inner circumference of the vertical shaft exposed by a movement of the frame unit, the inner case, and the outer case in the inserting step; and a step of repeating the step of forming the first hole in accordance with the depth of the vertical shaft, the step of forming the second hole, the step of installing the lining, and the step of inserting the inner case and the outer case with the frame unit. In the step of inserting the frame unit after the step of installing the lining, the frame unit is pressed by a pressing device connected to the lining. The excavating device includes: an earth auger excavating soil; and a rock hammer capable of excavating the hard ground.

Description

Vertical Hole Excavation Method {METHOD FOR EXCAVATING VERTICAL SHAFT}

The present invention relates to a vertical sphere excavation method using a vertical sphere excavation device.

Construction of vertical tunnels for underground roads, subways, underground power facilities, telecommunications facilities, water supply and drainage underground joint pit facilities covers an average depth of 20m to 50m, except for mountainous areas. It is an environment where the vertical excavation work and the vertical structure work must be carried out after the temporary construction.

Construction work for excavation during vertical vertical construction in Korea is generally required as a preliminary process for excavation and construction of structures due to ground collapse and earth pressure during vertical excavation by installing vertical H-type steel and earth plate, concrete pouring and horizontal support reinforcing bands. After the construction work, some dismantled and landfilled.

However, this construction method has a problem of stability due to instability of the temporary structure and increase in construction costs. The most common stability problem during vertical excavation is the groundwater problem. In particular, in urban alluvial soils with high groundwater level, groundwater outflow during excavation drastically degrades the constructability of vertical hole excavation process. Causes local ground subsidence of vertical ground.

In particular, the lack of indentation depth of vertical H-shaped steel in the bedrock may lead to structural collapse when problems such as anchors, bands, braces, etc. occur.

Existing vertical sphere excavation and construction method, construction is carried out in the order of installation of temporary structure, main construction (tunnel), construction of vertical sphere structure. In case of deepening, the construction cost of installation of temporary structure is increased due to the increase of earth pressure, and there are problems of high construction possibility and accident occurrence in places with many obstacles in the city.

Based on the technical background as described above, the present invention is to provide a vertical sphere excavation method using a vertical sphere excavation system that can be excavated while preventing the collapse of the structure, preventing the settlement of the surrounding ground.

Vertical sphere excavation method according to an embodiment of the present invention surrounds the vertical sphere in the position where the vertical sphere is installed, including an inner case and an outer case, and an excavating device located in the inner space spaced apart from each other to form an inner space And mounting a vertical ball drilling device having a frame portion rotating along an inner space, fixing the vertical ball drilling device to the ground on which the vertical ball is formed, and moving the excavator in a first direction to at least one material. Forming a second hole, forming a second hole connecting the first hole while moving the excavator in a second direction crossing the first direction, pressing the frame part to form the second hole; Then, inserting the inner case and the outer case with the frame portion on the exposed ground, the frame portion, the inner case and the inserting step Installing a lining along an inner circumferential surface of the vertical sphere exposed by movement of the outer case, forming a first hole according to the depth of the vertical sphere, forming a second hole, installing a lining, together with a frame part And repeating the steps of inserting the inner case and the outer case, and after installing the lining, inserting the frame portion presses the frame portion with a pressurization device connected with the lining, and the excavating device earths the earth. Includes augers, rock hammers and rock hammers that can drill hard ground.

The first hole may be formed in plural, and the second hole may be located between the first holes.

In the forming of the second hole, the drilling device may rotate in the range of 0 ° to ± 45 ° along the inner surface of the vertical ball drilling device.

Simultaneously with the forming of the first hole and the forming of the second hole, the pipe soil surrounded by the inner case may be removed by an excavator.

Vertical hole excavation method according to another embodiment of the present invention surrounds the vertical sphere in the position where the vertical sphere is installed, the inner case and the outer case to form an inner space spaced from each other, and an excavating device located in the inner space And mounting a vertical ball drilling device having a frame portion that rotates along an inner space, fixing the vertical ball drilling device to the ground on which the vertical ball is formed, at least one first hole in the ground while vertically drilling the drilling device. Forming a step, storing the drilling device vertically upwards in the frame portion, moving the drilling device along the inner circumferential surface of the vertical sphere drilling device, connecting the drilling device with the first hole in the ground vertically downward from the frame part After forming the third hole, pressing the frame portion to form the third hole, the frame portion and the exposed ground Inserting the inner case and the outer case together; installing the lining along the inner circumferential surface of the vertical sphere exposed by the movement of the frame portion, the inner case and the outer case in the inserting step; Repeating forming, forming the third hole, installing the lining, inserting the inner case and the outer case together with the frame portion, and after the installing the lining, inserting the frame portion The step of pressurizing the frame portion with a pressing device connected to the lining, the excavating device includes an earth Auger for excavating the soil and the rock and rock hammer capable of excavating the hard ground.

In the step of moving along the inner circumferential surface, the drilling device may rotate in the range of 0 ° to ± 45 ° along the inner circumferential surface of the vertical sphere drilling device.

Vertical hole excavation method according to an embodiment of the present invention, there is no risk of collapse of the structure, it is possible to excavate the vertical sphere while preventing the inflow of groundwater and earth and sedimentation of the ground around the vertical sphere.

In addition, the vertical sphere excavation method according to an embodiment of the present invention, because the vertical sphere is excavated vertically to the ground without constructing a temporary facility, the construction speed can be shortened, thereby reducing the cost of construction. .

In addition, even when the construction of any one of the vertical hole excavation, lining construction or vertical hole internal excavation is delayed, each construction can be carried out without being influenced by each other, thereby greatly improving workability.

1 is a block diagram showing a vertical sphere excavation system according to an embodiment of the present invention.
Figure 2 is a perspective view of the vertical sphere drilling equipment of Figure 1;
3 is a cross-sectional view taken along line III-III of FIG. 2.
Figure 4 is a flow chart for explaining a vertical sphere excavation method according to an embodiment of the present invention.
5 and 6 are views of a vertical ball drilling device at an intermediate stage of the vertical ball drilling method of FIG.
7 to 10 are views showing the planar shape of the vertical sphere at the intermediate stage of the vertical sphere excavation method.
11 is a flowchart illustrating a vertical sphere excavation method according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to the illustrated.

In addition, throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding the other components unless otherwise stated.

1 is a block diagram showing a vertical ball drilling system according to an embodiment of the present invention, Figure 2 is a perspective view of the vertical ball drilling device of Figure 1, Figure 3 is cut along the line III-III of FIG. It is a cross section.

As shown in FIG. 1, the vertical ball drilling system 1000 according to an embodiment of the present invention includes a power system 200, a control system 300, and a vertical ball drilling device 100.

The power system 200 may include a hydraulic system 220, an air compressor 230, and a generator 210 for driving the hydraulic system 220 and the air compressor 230.

The control system 300 connects the power system 200 and the vertical sphere digging device 100 to each other, and may control the same. For example, the control system 300 may drive the air compressor 230 or the hydraulic system 220 by measuring the vertical ball excavation state.

The vertical ball digging device 100 is connected to the power system 200 via the control system 300. Accordingly, the vertical sphere excavator 100 is controlled and operated by the control system 300.

Specifically, referring to FIGS. 1 to 3, the vertical sphere digging device 100 includes an outer case 10, an inner case 20, a frame part 30, an excavating device 40, a pressing device 50, It may include a rotation device 60 and the verticality meter (70). Vertical sphere drilling device 100 may be formed in a cylindrical shape as a whole.

The outer case 10, the inner case 20, and the frame part 30 may be separated into a plurality of unit pieces, and a plurality of unit pieces may be connected and assembled. The size and number of these unit pieces can be changed according to the size of the vertical sphere to be excavated on the ground. Therefore, the vertical sphere excavation device 100 may be dismantled after the excavation of the vertical sphere is completed. In this case, the outer case 10 may be buried in the ground without being recovered after the final excavation.

The outer case 10 may be inserted perpendicularly to the ground to prevent groundwater from flowing into the outer case 10 or the soil to collapse. This can prevent settlement of the surrounding ground. For example, the outer case 10 serves as a soil barrier, and may be buried in the ground without being recovered when dismantling equipment after the final excavation.

The inner case 20 may be spaced apart from the inside of the outer case 10, and may be connected to the outer case 10. As a result, spaced spaces are formed between the inner case 20 and the outer case 10. The inner case 20 is formed to have a lower height than the outer case 10. However, the inner case 20 has the same level as the outer case 10 and the lower end inserted into the ground.

The inner case 20 may secure a safe work space inside the vertical sphere digging device 100. Accordingly, the excavation of the soil inside the vertical sphere when forming the vertical sphere is possible.

The frame part 30 may be positioned between the outer case 10 and the inner case 20 and inserted into a space formed between the outer case 10 and the inner case 20.

The frame unit 30 may rotate between the outer case 10 and the inner case 20 by the rotating device 60 connected to the outer case 10. That is, the frame part 30 rotates in the space formed between the outer case 10 and the inner case 20 and a rotation path is formed.

The surface facing the outer case 10 and the inner case 20 in the frame portion 30 is formed to be curved along the inner surface of the outer case 10 and the outer surface of the inner case 20.

The frame part 30 may include an insertion part 31a into which the earth auger 42 and the rock hammer 44 of the excavation device 40 are respectively inserted. The insertion part 31a may be formed long in the height direction of the frame part 30, and the insertion part 31a into which the earth auger 42 is inserted and the insertion part 31a into which the rock hammer 44 is inserted may be a frame. It may be formed alternately along the outside of the portion (30).

A plurality of pinion gears 37 may be connected to the upper end of the inner side of the frame 30, and the pinion gear 37 may be connected to the inner side of the frame 30 facing each other. Through the pinion gear 37, the binding force of the frame part 30 may be further improved.

 The pinion gear 37 may be formed along the inner surface of the frame portion 30 and may have a length of 1/4 of an inner circumference of the frame portion 30. In this case, the frame part 30 may be rotated by 45 ° to the left and the right of the pinion gear 37, respectively.

Excavation device 40 may be provided in plurality, it may be located on the end side of the pinion gear 37, respectively. Thus, the excavation device 40 is ground that is exposed to the space formed between the outer case 10 and the inner case 20 while the frame portion 30 is rotated 45 degrees left and right by the pinion gear 37 500 can be excavated. This will be described in detail with reference to FIGS. 7 to 10 to be described later.

In addition, the pinion gear 37 may be located above the inner case 20. For example, the pinion gear 37 may be connected to the frame portion 30 located at the top of the inner case 20.

On the other hand, the outer case 10 and the inner case 20 may include a tip shoe 80 connected to the end. A base jaw may be formed inside the tip shoe 80. The lower end of the frame portion 30 may be seated on the base jaw. Accordingly, the pressing force of the pressing device 50 may be transmitted to the tip shoe 80 of the inner case 20 and the outer case 10 through the frame part 30.

The tip shoe 80 may be inserted into the ground 500 to reduce the reaction force and friction when the outer case 10 and the inner case 20 are inserted. That is, the pressing force is largely applied to the tip shoe 80 having a small area of the end portion, thereby being easily inserted into the ground 500 to reduce the reaction force generated from the ground 500, and the wedge-shaped tip shoe 80. A space is created in the ground 500 relatively moving along the friction force between the inner case 20 and the outer case 10 can be reduced.

The pressurization device 50 may be a hydraulic cylinder connected to the hydraulic system 220 through the control system 300. In order to pressurize the frame part 30 uniformly, the pressing device 50 may be installed in plural and connected to each frame part 30. In addition, the pressing device 50 is connected to the lining (refer to 400 of FIG. 5) or the support part 700 installed on the ground to press the frame part 30 to insert the vertical sphere excavator 100 into the ground 500. Let's do it. Support 700 of Figure 3 may be installed when excavation.

That is, when the frame portion 30 is pressed, the inner case 20 and the outer case 10 behave like the frame portion 30 so that the vertical sphere digging device 100 may be inserted into the ground 500. For example, the pressure device 50 is excavated by the excavation device 40, when the lower ground of the vertical ball drilling device 100 is excavated to form a space, the vertical ball drilling device 100 is pushed into the space to the vertical sphere Excavator 100 may be inserted into the ground.

The plurality of pressing devices 50 may operate sequentially so that the vertical orifice drilling device 100 is vertically inserted into the ground 500.

In addition, when the inner case 20 and the outer case 10 are pressed and inserted into the ground 500, several hundred tons of pressure inputs to the outer surfaces of the inner case 20 and the outer case 10 due to friction by the surrounding ground. This may occur. In this case, in order to minimize friction, the liquid filler of bentonite may be press-filled between the ground 500 and the inner case 20 and the outer case 10.

Excavator 40 may be connected to hydraulic system 220 and air compressor 230. Excavator 40 may include an earth augar 42 and a rock hammer 44. The earth auger 42 may operate with hydraulic pressure transmitted from the hydraulic system 220, and the rock hammer 44 may be operated in connection with the air compressor 230.

Earth Auger 42 and rock hammer 44 is selected according to the state of the ground 500 to excavate the ground (500). For example, in the case of soft ground, the earth is excavated using the earth auger 42, and in the case of hard ground such as rock and amber, the ground is excavated using the rock hammer 44. At this time, the unused earth auger 42 or rock hammer 44 may be accommodated in the insertion portion 31a of the frame portion 30 so as not to contact the ground.

Rotating device 60 is located in the outer case 10, it may be connected to engage the pinion gear 37. The rotating device 60 is installed spaced apart from the frame 30 and the inner case 20. The rotating device 60 may include a fixing bracket 62 to which the driving motor 64 and the driving motor 64 are connected.

The fixing bracket 62 is located at the center of the pinion gear 37 and may be formed in plural. The drive motor 64 includes a rack 65 that meshes with the pinion gear 37. It may also include a rail 66 that may be inserted into the pinion gear 37.

The rotary device 60 may rotate the drilling device 40 connected to the frame part 30 by rotating along the rotation path formed in the vertical ball drilling device 100. At this time, when the rotation apparatus 60 sets the center of the pinion gear 37 to 0 °, the drilling device 40 positioned at the end of the pinion gear 37 may rotate ± 45 °. Thus, the angle excavated by one excavation device 40 may be 90 degrees.

The rotary device 60 may excavate the ground 500 below the rotary path by rotating the excavator 40 along the rotation path formed between the outer case 10 and the inner case 20.

For example, in the case where the soft ground is found, the rock hammer 44 remains inserted into the frame portion 30 and protrudes the earth auger 42 from the frame portion 30 to open the ground 500. Can be excavated At this time, the rotating device 60 rotates the frame portion 30 and accordingly rotates the auger 42, the ground 500 is excavated by the rotational force of the auger 42. Also, the earth auger 42 may excavate the ground 500 while vertically moving up and down, and may discharge the excavated earth and sand to the outside.

If hard ground is found, the protruding earth Auger 42 may be inserted into the frame portion 30, and the rock hammer 44 may protrude from the frame portion 30 to fracture the hard ground. The rock hammer 44 may also crush the ground 500 while vertically moving up and down.

As such, when the vertical sphere drilling apparatus 100 according to the embodiment of the present invention is used, the ground 500 may be excavated by the up and down direction and the rotation using the drilling apparatus 40.

And the excavated ground may be disposed of by rock hammer 44 or earth auger (42). The ground is discharged into the vertical sphere excavation device 100 may be discharged out of the vertical sphere with the vertical soil inside the earth excavated excavated.

The excavation surface of the lower vertical hole excavation device 100 may contact the outside air only through the earth auger 42. That is, the lower space of the vertical sphere digging device 100 is sealed from the outside air, thereby preventing a situation in which unexpected elution water or ground depression may occur.

The vertical degree measuring device 70 may measure the vertical degree so that the drilling device 40 may rotate perpendicularly to the ground. The vertical degree measuring instrument 70 may be connected to the drilling device 40, respectively. The vertical degree measuring instrument 70 transmits the information measured by the excavation device 40 to the control system 300.

For example, the excavator 40 rotates in a state perpendicular to the ground, but the excavator 40 may be inclined by the reaction force of the ground. Accordingly, the ground excavation ability of the excavation device 40 can be reduced. Therefore, by measuring the vertical degree of the excavation device 40 through the vertical degree measuring device 70 it is possible to prevent the ground excavation capacity is reduced.

Excavating the ground with the vertical sphere drilling device 100 according to the present invention described above can easily form a vertical sphere.

The vertical sphere may form a vertical hole excavation apparatus 100 along the inner circumference of the vertical sphere to be formed, and form a vertical vertical hollow sphere by removing the inner soil surrounded by the annular hole with the excavator.

On the other hand, in the embodiment of the present invention can leave the soil within the vertical sphere excavation device, it is possible to prevent the heaving phenomenon (boiling) and phenomena that may occur during the excavation process by such a tube soil.

 Next, a method of excavating a vertical sphere using the excavation apparatus shown in FIGS. 1 to 3 will be described with reference to the drawings.

Figure 4 is a flow chart for explaining a vertical sphere excavation method according to an embodiment of the present invention, Figures 5 and 6 is a view of the vertical sphere excavation device at an intermediate stage of the vertical sphere excavation method of Figure 4, Figure 7 10 is a view showing the plane shape of the vertical sphere in the middle step of the vertical sphere excavation method.

Referring to Figure 4, the vertical sphere excavation method according to an embodiment of the present invention for mounting the vertical sphere drilling device (S100), fixing the vertical sphere drilling device to the ground (S102), excavation in the first direction Forming a first hole (S104), excavating in a second direction to form a second hole (S106), installing a lining (S108), and removing vertical soil to form a vertical sphere ( S110) may be included.

Mounting the vertical sphere drilling device (S100) is a vertical sphere drilling device 100 so that the outer case 10, the inner case 20 and the flame portion 30 is located so as to surround the vertical sphere in the position to form the vertical sphere. )).

Fixing the vertical sphere drilling device (S102) is to install the support 700 to the outside of the vertical sphere drilling device to connect with the vertical sphere drilling device, by pressing the frame unit 30 using the pressing device 50 The tip shoe 80 is inserted into the ground and fixed (see FIG. 3).

The pressurizing device 50 may be supported by the support 700 to expand the tip shoe 80 into the ground 500 while expanding.

Forming the first hole (S104) is a step of excavating the ground 500 with the excavation device 40, it is possible to excavate the ground with earth Auger 42 or rock hammer according to the state of the ground 500 .

5 and 6, the earth auger 42 or the rock hammer 44 may protrude from the frame portion 30 in the first direction, that is, the vertical direction, and excavate the ground. At this time, the earth auger 42 may protrude while rotating. Excavation efficiency can be improved due to earth augers or rock hammers that are selectively cooked according to the condition of the ground.

Excavator 40 is excavated the ground while discharging the earth and sand and the like to the outside at least one or more first holes are formed as shown in FIG. The first holes may be formed in plural numbers according to the number of the drilling rigs, and may be formed at intervals along the inner circumference of the vertical sphere to be formed. The first hole may be formed to have a long length in the first direction.

Excavating the second hole (S106) may be performed by using the rotating device 60 connected to the frame part 30, along the inner surface of the vertical direction excavation device, in a second direction intersecting with the first direction. Rotate 30.

In this case, the frame part 30 may be rotated by ± 45 ° in the left and right directions, respectively. For example, as shown in FIG. 8, the second hole V2 is formed while moving the frame part 30 in the left direction (ie, + 45 °). On the contrary, as shown in FIG. 9, the second hole V2 is formed by moving the frame part 30 in the right direction (ie, −45 °). The order of rotating them may be changed.

As such, when the frame part 30 is rotated, the drilling device moves along the inner surface of the vertical ball drilling device, and the first hole is extended along the inner surface of the vertical ball drilling device, as shown in FIGS. 8 and 9. Two holes V2 are formed. At this time, when the second hole (V2) is formed by rotating at the maximum angle, the second hole is connected between the first hole and as shown in Figure 10 annular hole (V3) surrounding the pipe DD, that is, the number The fastener outer peripheral surface is formed.

In step S108 of installing the lining, the lining may be precast concrete prefabricated along the inner circumferential surface of the vertical sphere. The lining may be installed in plurality as the vertical sphere excavator is excavated.

Step (S110) of removing the soil in the tube to form a vertical sphere can be removed by excavating with an excavator, the vertical sphere is formed inside the hollow.

On the other hand, the inside of the vertical sphere drilling device 100 is surrounded by the inner case, and regardless of the excavation forming the first hole and the second hole, the ground (that is, pipe soil) is exposed, so that the first hole and the second hole At the same time as forming the hole can be excavated using an excavator.

At this time, the vertical hole excavation device acts as a retainer, and the lining is installed in the space excavated by the vertical hole excavation device, so that the risk of collapse of the surrounding ground and leakage of groundwater can be prevented even without construction of a temporary facility such as a retainer. Can be. Accordingly, vertical sphere drilling and vertical sphere internal drilling can be performed separately without affecting each other.

Therefore, even if a problem occurs in one process may not affect the progress of the other process, the speed of the work progress can be greatly improved, thereby reducing the construction cost.

Vertical sphere drilling device according to an embodiment of the present invention may rotate in the range of 0 ° to ± 45 ° along the inner surface of the vertical hole excavator. As the depth of the excavated ground becomes deeper, the earth pressure is gradually increased from the surrounding ground, and thus, a lot of energy is consumed to rotate the frame portion along the inner surface of the vertical sphere excavator. Therefore, by increasing the number of the drilling device connected to the frame portion it is possible to reduce the rotation of the frame portion as much as possible to save energy. For example, a plurality of excavators may be connected to the frame unit, and the plurality of excavators may be arranged at the rotation start position and the rotation end position of the vertical sphere excavator, respectively.

In the above embodiment, the second hole is continuously formed while proceeding from 0 ° to + 45 ° and 0 ° to -45 °, but is not limited thereto, and is not limited thereto. It may be formed discontinuously by dividing the rotation angle within 45 ° while proceeding to °, or by adding the step of forming the first hole.

Further, after forming the vertical sphere outer circumferential surface according to the depth of the vertical sphere to be formed, by pressing the frame portion with a pressing device to insert the vertical hole drilling device into the ground exposed by the first hole and the second hole, Forming the hole and the second hole may be repeated.

11 is a flowchart illustrating a vertical sphere excavation method according to another embodiment of the present invention.

Referring to FIG. 11, in the vertical hole drilling method according to another embodiment of the present invention, the vertical hole drilling device may be seated (S200), the step of fixing to the ground (S202), and vertical downward drilling to form a first hole. Step (S204), vertically upwardly drilling the drilling device (S206), rotating (S208), forming a third hole while vertically downward (S210), installing a lining (S212), the inside of the pipe And removing step S214.

Step of mounting the vertical sphere drilling device of Figure 11 (S200), fixing to the ground (S202), vertically excavated while forming a first hole (S204), the step of installing the lining (S212) and the tube Removing the soil (S214) comprises the steps of mounting the drilling device of Figure 4 (S100), fixing the vertical sphere drilling device to the ground (S102), excavating in a first direction to form a first hole (S104), the step (S108) to install the lining, the same as the step (S110) to remove the pit soil, detailed description thereof will be omitted.

Unlike in FIG. 4, the vertical hole excavation method of FIG. 11 further includes vertically upwardly drilling the excavator (S206), rotating the vertically (S208), and excavating vertically downward to form a third hole (S210). do.

In step S206 of vertically drilling the excavation device, the earth auger or hammer auger 44 used in forming the first hole is vertically upward and stored in the accommodating part 31a of the frame part 30. Protrudes and is not exposed.

In step S208, the frame unit 30 is rotated along the inner surface of the vertical sphere digging device using the rotating device 60 connected to the frame unit 30. At this time, the rotation angle may rotate in the range of 0 ° to ± 45 °.

Forming the third hole by excavating while vertically downward (S210) is the same as the method of forming the first hole, and excavating the ground while inserting an excavation device into the ground while vertically forming the third hole.

In the step of rotating (S208), by reducing the rotation angle can be formed by connecting the third hole and the first hole, but is not limited to this to form a third hole spaced apart from the first hole by increasing the rotation angle. Can be.

In order to form an annular hole, that is, a vertical sphere outer circumferential surface, the drilling device is vertically upwardly moved (S206), rotated (S210), and the third hole (S210) is formed between the neighboring first holes. By forming a plurality of third holes, the plurality of third holes can be connected to each other to form adjacent third holes.

As such, when repeating the vertical upward step (S206), the rotating step (S210) and forming the third hole (S210), the excavation device repeats vertical downward and vertical upward from the frame portion, such as punching And excavation efficiency can be improved by excavating ground such as hard rock. Through this, even if the lower portion of the vertical ball drilling device is excavated it can be prevented that the vertical ball drilling device loses sharp balance.

Although the present invention has been described through the preferred embodiments as described above, the present invention is not limited thereto and various modifications and variations are possible without departing from the spirit and scope of the claims set out below. Those in the technical field to which they belong will easily understand.

10: outer case 20: inner case
30: frame portion 31a: insertion portion
37: Pinion Gear
40: Excavator 42: Earth Auger
44: rock hammer 50: hydraulic cylinder
60: rotating device 62: fixing bracket
64: drive motor 70: verticality measuring instrument
80: tip shoe 100: vertical ball drilling device
200: power system
210: generator 220: hydraulic system
230: air compressor 300: control system
400: lining 500: ground
600: excavator 1000: vertical ball drilling system

Claims (6)

Surrounding the vertical sphere in the position where the vertical sphere is to be installed, including an inner case and an outer case spaced apart from each other to form an inner space, and an excavating device located in the inner space and having a frame portion rotating along the inner space. Seating the vertical sphere excavator,
Fixing the vertical sphere excavator to the ground on which the vertical sphere is formed;
Forming at least one first hole in the ground while moving the excavator in a first direction;
Forming a second hole connected to the first hole while moving the excavator in a second direction crossing the first direction along the frame part;
After pressing the frame part to form the second hole, inserting the inner case and the outer case together with the frame part to the exposed ground;
Installing a lining along an inner circumferential surface of the vertical sphere exposed by movement of the frame part, the inner case and the outer case in the inserting step,
Forming the first hole according to the depth of the vertical sphere, forming the second hole, installing the lining, and inserting the inner case and the outer case together with the frame part. step
Including,
After installing the lining, inserting the frame portion, press the frame portion with a pressing device connected to the lining,
The excavation device is a vertical sphere excavation method comprising an earth auger for excavating the earth and sand and rock hammer capable of excavating hard ground. The method of claim 1,
The first hole is formed in plurality,
And the second hole is located between the first holes. The method of claim 1,
In the forming of the second hole,
The excavation device is a vertical sphere excavation method that rotates in the range of 0 ° to ± 45 ° along the inner surface of the vertical sphere excavation device. The method of claim 1,
And a step of forming the first hole and the forming of the second hole, and simultaneously removing the duct soil surrounded by the inner case with an excavator. Surrounding the vertical sphere in the position where the vertical sphere is to be installed, including an inner case and an outer case spaced apart from each other to form an inner space, and an excavating device located in the inner space and having a frame portion rotating along the inner space Seating the vertical sphere excavator,
Fixing the vertical sphere excavator to the ground on which the vertical sphere is formed;
Forming at least one first hole in the ground while vertically downwardly drilling the drilling apparatus;
Storing the drilling apparatus vertically upward in the frame portion;
Moving the drilling device along the inner circumferential surface of the vertical ball drilling device;
Forming a third hole by connecting the excavating device vertically from the frame part with the first hole in the ground;
After pressing the frame part to form a third hole, inserting the inner case and the outer case together with the frame part to the exposed ground;
Installing a lining along an inner circumferential surface of the vertical sphere exposed by movement of the frame part, the inner case and the outer case in the inserting step,
Forming the first hole according to the depth of the vertical sphere, forming the third hole, installing the lining, and inserting the inner case and the outer case together with the frame part. Including steps
After installing the lining, inserting the frame portion, press the frame portion with a pressing device connected to the lining,
The excavation device, a vertical sphere excavation method comprising an earth auger for excavating the earth and sand and a rock hammer capable of excavating a hard ground. The method of claim 5,
In the step of moving along the inner circumferential surface,
The excavation device is a vertical sphere excavation method that rotates in the range of 0 ° to ± 45 ° along the inner peripheral surface of the vertical sphere excavation device.

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