KR101025574B1 - Perpendicular hole divice and method of underground installation using the same - Google Patents

Abstract

PURPOSE: A vertical well excavating device and a construction method of an underground facility using the same are provided to ensure stable excavation regardless of the propriety of the ground and to remove the need of water cut-off work. CONSTITUTION: A vertical well excavating device comprises an outer casing(11) of cylindrical shape and an inner casing(14) of cylindrical shape. The outer casing is formed with saw-tooth tips(12) at regular intervals on the bottom and an out propulsion entry(13) through which an underground facility passes. The inner casing is installed within the outer casing and formed with an in propulsion entry(15) corresponding to the out propulsion entry.

Description

Perpendicular Drilling Equipment and Underground Facility Construction Method Using the Vertical Hole Drilling Equipment {PERPENDICULAR HOLE DIVICE AND METHOD OF UNDERGROUND INSTALLATION USING THE SAME}

The present invention relates to a vertical sphere excavation device and a method of constructing an underground facility using the same, which is capable of constructing a vertical sphere safely, simply and quickly regardless of the soil defects, and to promote underground facilities without a separate order.

In the past, the construction of vertical spheres was widely used in the past with the drill and blast method using gunpowder (conventionally using main materials and linings), and in the mine, the mechanized excavation using RBM (Raise Boring Machine) equipment from the bottom to the top was the first. Since its introduction, many construction records have been posted. In the late 1970s, the hydraulic tunnels of pumped-up power plants used the RC method of manpower drilling and mechanized transportation using Raise Climber. In other words, the vertical sphere has been constructed depending on the equipment possessed and the performance in the specific field, and the equipment used until now is also designed and constructed in accordance with the use of the equipment rather than the introduction of the newly developed mechanized equipment abroad. There is a situation.

In the past, vertical construction was mostly done by top-down excavation, which used a blasting method to handle the upper part, while the construction of communication tunnels was increasing with the rapid increase of communication facilities. Daedeokdeo, large diameter has been hardened, affecting the utilization of underground space. In the case of small section vertical spheres having a diameter of less than 3m with shear surface excavation, they can be largely classified into a top-down excavation method and a bottom-up excavation method in consideration of the excavation direction and the buckle treatment method. Top down excavation is possible, but as the depth of excavation becomes deeper, the bottom up excavation method is applied after securing the lower working space in consideration of the difficulty of handling the burrs, the excavation economy and the efficiency of the excavation equipment. RBM and RC methods are mainly used for the bottom-up excavation method, at which time the barrel is taken out from the bottom.

In this way, a lot of time is required to handle the digging at the time of excavation, and the construction cost naturally rises. In addition, labor costs are excessively invested, and blast noise, vibration, and barriers can cause safety risks in surrounding tunnels, support materials, and equipment. In addition, soft rock and weathered rock areas are difficult to excavate due to the collapse of the side walls. In addition, it is difficult to install a large pump due to the nature of the vertical sphere as a problem due to the large amount of groundwater discharge, and problems during construction such as life-saving accidents or excavation stoppage due to the discharge.

Vertical sphere refers to a kind of underground space structure such as mining, road, subway, railway traffic tunnel, communication zone, elevator, water collecting well, septic tank, water tank, fire tank. As such, a precise and efficient method has not been proposed in the related art for the excavation method of a wide sphere. Therefore, there is a great demand for devising to solve this problem.

In general, the method used for constructing the underground vertical sphere is to excavate in the form of an excavation type, while laying lining concrete after waterproofing work by order sheet to prevent the collapse of the excavation surface by shotcrete, rock bolt, etc. and to prevent the inflow of groundwater. It was a fair.

However, this method has a high risk of safety accidents due to falling rocks and collapses in rock layers with poor rock quality. Therefore, many facilities are needed, such as river masonry, resulting in high cost, long air, and soft weathered rocks. In the case of installing a separate earth plate or ordered by sheet pile or JSP grouting due to the inflow of groundwater, the construction is possible, there is a problem that is followed by the hassle and inconvenience.

The present invention has been made to solve the above-mentioned problems of the prior art, a vertical sphere that can safely and simply and quickly build a vertical sphere regardless of the poor soil of the ground and to promote underground facilities without a separate order The purpose of the present invention is to provide an excavation device and a construction method for underground facilities using the same.

Means of the present invention for achieving the above object is formed in a cylindrical shape having the same outer diameter as a whole, the saw blade tips are formed at intervals at the bottom, one side is in communication with the inner space for the propulsion out through the underground facility Out casing through which the shaft is formed; The entire casing is formed in a cylindrical shape having the same outer diameter and is mounted in the inner space of the out casing, and consists of an in casing in which the in-propulsion shaft penetrates at a position corresponding to the out-propelling shaft of the out casing. do.

Further another means of the present invention for achieving the above object is a first step of mounting the in casing in the inner space of the out casing so that the propulsion shafts communicate with each other and then blocking the propulsion shaft with a protective steel sheet; After installing the counter weight and the vertical ball digging device in a dedicated machine, the vertical ball digging device is pressed into the ground and inserted to cover the inner wall of the ground to form the vertical and reaching vertical spheres spaced at regular intervals. A second step of processing the generated bag; A third step of propelling the underground facility from the vertical hole side to the reaching vertical hole side through the propulsion shaft of the vertical hole digging device; A fourth step of dismantling the vertical ball drilling device excavated in the vertical ball and the vertical ball, removing sludge and water in the vertical ball and the vertical ball, and then installing a perforated plate at the inlet of the vertical ball; It is characterized by.

Still another means of the present invention for achieving the above object is a first step of mounting the in casing in the inner space of the out casing so that the propelling shafts communicate with each other and then blocking the propulsion shaft with a protective steel plate; A second step of installing a counterweight and the vertical ball digging device in a dedicated machine, and then inserting and digging the vertical ball digging device into the ground to cover the inner wall of the ground to form a vertical ball to process the buckle generated; ; A third step of dismantling the vertical ball drilling device excavated in the vertical ball and embedding underground facilities in the internal space of the vertical ball drilling device; And removing the sludge and the water in the vertical sphere, and installing a perforated plate at the inlet of the vertical sphere.

Vertical hole excavation device and construction method of underground facilities using the same according to the present invention can safely and simply and quickly build a vertical sphere irrespective of the ground conditions, it is possible to promote the underground facilities without a separate order to reduce the air The construction cost can be reduced, and it can be easily carried out by applying to various purposes (fire hydrant tank, communication section, water well, water tank, septic tank, work zone, etc.) in the field of urban civil engineering as well as sewage business.

1 is an exploded perspective view of a vertical sphere excavation device according to the present invention.
Figure 2 is a perspective view of the combination of the vertical sphere excavation device according to the present invention.
3 is a construction flowchart of the method for constructing underground facilities according to the first embodiment of the present invention.
Figure 4 is a block diagram showing the construction sequence of the underground facility construction method according to a first embodiment of the present invention.
Figure 5 is a construction flowchart of the construction method of underground facilities according to a second embodiment of the present invention.
Figure 6 is a block diagram showing the construction procedure of the underground facility construction method according to a second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be more apparent.

1 is an exploded perspective view of the vertical sphere drilling device according to the present invention, Figure 2 is a perspective view of the vertical sphere drilling equipment combined according to the present invention.

As shown in FIG. 1 and FIG. 2, the vertical ball drilling device according to the present invention makes it easier to excavate a vertical ball to embed underground facilities in the vertical ball or to promote installation of underground equipment in the ground. It is composed of the out casing 11 and the in casing 14 to shorten the air and cost according to the vertical hole excavation.

The out casing 11 is formed in a cylindrical shape having the same outer diameter as a whole, and saw blade tips 12 are formed at intervals so that the ground can be easily and quickly excavated at the lower end portion.

In addition, one surface of the out casing 11 has a through-propulsion shaft 13 communicating with the internal space and through which underground facilities pass, thereby establishing a viewpoint vertical sphere 2 and an arrival vertical sphere 3. Immediately the underground facility can be pushed from the starting vertical sphere (2) to the reaching vertical sphere (3).

In addition, the out casing 11 and the in casing 14, the protective steel plate 30 is further installed. The protective steel plate 30 prevents the excavated soil from being introduced into the inside of the vertical sphere excavating device 10 through the propulsion shaft in the process of excavating the vertical spheres 2 and 3 to smoothly promote the underground facility. To help.

The in casing 14 is formed in a cylindrical shape having the same outer diameter as a whole, the in-propulsion shaft 15 is formed through the position corresponding to the out-propulsion shaft 13 of the out casing 11, out The vertical sphere digging device 10 which is coupled to the inner space of the casing 11 by welding or coupling and has such a structure is easily bent in the process of digging the vertical spheres 2 and 3 by pressing the ground due to its rigidity. / Not deformed

In addition, the injection pipe 20 is installed at intervals between the out casing 11 and the in casing 14, and in the process of excavating the ground to build the vertical spheres (2, 3) later When lubricating oil or cutting oil is injected into the injection pipe 20, the lubricating oil or cutting oil is discharged to the ground to prevent wear and damage of the saw blade tip 12 when excavating the ground, thereby extending the life and efficient drilling work can be made.

Here, it is preferable to prevent the inflow of soil between the space portion 80 by further welding the blocking plate (not shown) to the space portion 80 of the out casing 11 and the in casing 14.

The out casing 11 and the in casing 14 are made of a diameter corresponding to the diameter to build the vertical sphere (2, 3), the couple to correspond to the height to build the vertical sphere (2, 3) It can be laminated in multiple stages through rings or welding, and is formed by a steel material with strength to withstand rocking and indentation for excavation.

Hereinafter, a method of constructing an underground facility using a vertical ball digging device according to a first embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

As shown in FIG. 3 and FIG. 4, the construction method of the underground facility according to the present invention, first, by mounting the in-casing 14 in the inner space of the out casing 11 to prepare a vertical sphere drilling device 10 Next, the protective steel plate 30 is inserted into the propulsion shafts 13 and 15 of the out casing 11 and the in casing 14, and then the protective steel plate 30 is formed inside and outside the vertical hole drilling device 10. By welding along the edge to block the propulsion shafts (13, 15) to prevent the excavated soil from entering the interior of the vertical ball drilling device 10 in the process of excavating the ground.

Subsequently, the counterweight and the vertical ball digging device 10 are connected to the dedicated machine 1 in order, and then the dedicated machine 1 is operated to rotate the vertical ball digging device 10 in the left and right directions. It is inserted into the ground to cover the inner wall of the ground while excavating and swinging, and forms a vertical vertical hole 2 and a vertical vertical sphere 3 spaced apart by a predetermined distance, and the dedicated machine 1 uses a known MS-HBM. Can be.

At this time, lubricating oil or cutting oil is injected into the injection pipe 20 provided between the out casing 11 and the in casing 14. Lubricating oil or cutting oil injected into the injection pipe 20 is discharged to the ground to prevent wear and damage of the saw blade tip 12 when excavating the ground to extend the life of the vertical sphere excavation device 10 and efficient excavation work can be made Make sure

And, the soil generated in the process of excavating the vertical spheres (2, 3) is rubbed with a chrome shell bucket, and the groundwater proceeds to underwater drilling while pouring water.

In this case, a boiling phenomenon may occur on the bottom surfaces of the viewpoint vertical sphere 2 and the reaching vertical sphere 3, so that the bottom plate 60 is further formed by placing / curing concrete on the bottom surface. Can be prevented.

The height of the concrete poured in the above can be poured to a height of at least 20cm to a maximum of 50cm depending on the degree of the boiling phenomenon, the concrete is further mixed with a fastener to shorten, terminate and congeal the concrete within a short time to collapse the soil To prevent.

Subsequently, the bolt B is placed inside the vertical ball digging device 10 located in the vertical hole 2, and the underground facilities 4 such as sewer pipes and joint holes are used for the propulsion shaft by using the semi-shielding method. Proceed through (13, 15) to the reaching vertical sphere (3).

In more detail, the oscillation table 6 is installed in the vertical opening 2 of the view point, and the underground facility 4 is positioned on the oscillation table 6. And before pushing the underground facility (4) in the inner space of the in casing (14) through the drilling hole 31 of a diameter slightly larger than the diameter of the sewage equipment in the protective steel sheet 30, the outer periphery Bolting the anchorance packing 70 formed in a hollow shape to prevent groundwater or excavated soil from entering the interior of the underground facility.

At this time, the spiral hole 32 is formed on the outer periphery of the drilling hole 31 of the protective steel sheet 30, and the spiral packing 32 also has a spiral at a position corresponding to the spiral hole 32 of the protective steel sheet 30. When the hole 71 is formed, even if only the bolts B are spirally coupled to the spiral packings 32 and 71 of the anchor packing 70 and the protective steel plate 30, the anchor packing 70 is protected by the protective steel plate 30. ) Can be easily combined.

Subsequently, the propulsion jack 7 is installed in the underground facility 4, and the propulsion jack 7 is operated through the power supply device 8 to propel the underground facility 4 toward the reaching vertical sphere 3. do.

Subsequently, the vertical sphere digging device 10 excavated to the starting vertical sphere 2 and the reaching vertical sphere 3 is dismantled, and the vertical sphere digging device 10 and the counterweight are removed in sequence in the dedicated machine 1. Then, using a suction pump (not shown), sludge and water are removed from the inside of the viewpoint vertical sphere 2 and the reaching vertical sphere 3, and then, the perforated plate 9 is placed at the inlet of the vertical sphere 2,3. By installing so that there is no inconvenience in using the road, completes the construction of the underground facility according to the invention.

Hereinafter, a method of constructing an underground facility using a vertical ball digging device according to a second embodiment of the present invention will be described in detail with reference to FIGS. 5 and 6.

As shown in FIG. 5 and FIG. 6, the construction method of the underground facility according to the present invention first prepares the vertical sphere excavation device 10 by mounting the in casing 14 in the inner space of the out casing 11. The protective steel plate 30 is inserted into the propulsion shafts 13 and 15 of the out casing 11 and the in casing 14, and then the edges of the protective steel plate 30 inside and outside the vertical hole drilling device 10. In the process of drilling the vertical shaft (2 ') by blocking along the propelling shaft (13, 15) by welding along to prevent the excavated soil from entering the interior of the vertical ball drilling device (10).

Subsequently, the counterweight and the vertical ball digging device 10 are connected to the dedicated machine 1 in order, and then the dedicated machine 1 is operated to rotate the vertical ball digging device 10 in the left and right directions. It is inserted into the ground to cover the inner wall of the ground while excavating by rocking and drilling to form a vertical sphere (2 '), the dedicated machine (1) can be used known MS-HBM.

At this time, lubricating oil or cutting oil is injected into the injection pipe 20 provided between the out casing 11 and the in casing 14. Lubricating oil or cutting oil injected into the injection pipe 20 is discharged to the ground to prevent wear and damage of the saw blade tip 12 during the excavation of the ground to extend the life of the vertical sphere excavation device 10 and efficient excavation work can be made Make sure

Here, it is preferable to prevent the inflow of soil between the space portion 80 by further welding the blocking plate (not shown) to the space portion 80 of the out casing 11 and the in casing 14.

And, the soil generated in the process of excavating the vertical sphere (2 ') is rubbed with a chrome shell bucket, and the groundwater proceeds to underwater drilling while pouring water.

In addition, the inner space of the in casing 14 is provided with a corrugated pipe 40 spaced apart from the inner wall surface of the in casing 14 by a predetermined interval, the injection pump (between the in casing 14 and the corrugated pipe 40) 5) by placing / curing concrete to form the reinforcement part 50 to block the inflow of ground water.

In addition, since a boiling phenomenon may occur on the bottom surface of the vertical sphere 2 ', casting the concrete on the bottom surface of the vertical sphere 2' prevents the boiling phenomenon by further forming the bottom plate 60. can do.

The height of the concrete poured in the above can be poured to a height of at least 20cm to a maximum of 50cm depending on the degree of the boiling phenomenon, the concrete is further mixed with a fastener to shorten, terminate and congeal the concrete within a short time to collapse the soil To prevent.

Subsequently, the vertical sphere excavation apparatus 10 is removed from the vertical sphere 2 ', and underground facilities such as a communication port, a water collecting well, a fire tank, a septic tank, and a water tank are disposed inside the vertical sphere digging apparatus 10 (4). Bury ')

Subsequently, the vertical ball digging device 10 and the counter weights are sequentially removed from the dedicated machine 1, and then the sludge and water are removed from the inside of the vertical ball 2 'by using the suction pump 7 and then the By installing a perforated plate 9 at the entrance of the vertical sphere 2 'so that there is no inconvenience in using the road, the construction of the underground facility according to the present invention is completed.

10 vertical hole digging device 11: out casing
12: saw blade tip 13: shaft for out propulsion
14: phosphorus casing 15: phosphorus propulsion shaft
20: injection tube 30: protective steel sheet
31: drill hole 32, 71: spiral hole
40: corrugated pipe 50: reinforcement
60: bottom plate 70: anchorance packing

Claims (10)

The entire casing is formed in a cylindrical shape having the same outer diameter, the blade tip 12 is formed at intervals at the lower end, the outer casing is in communication with the inner space and the propelling shaft 13 through which the underground facility passes through the out casing (11);
The entire protruding shaft 15 is formed in a cylindrical shape having the same outer diameter and mounted in the inner space of the out casing 11, and the in-propulsion shaft 15 is positioned at a position corresponding to the out propulsion shaft 13 of the out casing 11. Vertical spherical excavation device, characterized in that consisting of the through casing 14 is formed through. The method of claim 1,
Vertical injector excavation device, characterized in that between the out casing (11) and the in casing (14) is provided with an injection tube 20 for guiding the discharge of lubricant or cutting oil supplied from the outside to the ground. The method of claim 1,
Propulsion shaft of the out casing (11) and the in casing (14) vertical drilling equipment, characterized in that the protective steel plate 30 is further installed to prevent the inflow of the excavation soil. A method of constructing an underground facility using the vertical ball digging device according to any one of claims 1 to 3,
The first casing 14 is mounted in the inner casing 14 of the out casing 11 so that the propulsion shafts 13 and 15 communicate with each other, and then the propelling shafts 13 and 15 are blocked by the protective steel plate 30. Steps;
After installing the counter weight and the vertical ball digging device 10 in the dedicated machine (1), the vertical ball digging device 10 is pressed into the ground and inserted into the ground to cover the inner wall of the ground to be spaced apart at regular intervals A second step of processing a bucket generated while forming the vertical sphere 2 and the reaching vertical sphere 3;
A third step of propelling the underground facility (4) from the viewpoint vertical sphere (2) side to the reaching vertical sphere (3) side through the propulsion shafts (13, 15) of the vertical sphere digging device (10);
The vertical sphere digging device 10 excavated in the viewpoint vertical sphere 2 and the arrival vertical sphere 3 is dismantled, and sludge and water are removed in the interior of the viewpoint vertical sphere 2 and the arrival vertical sphere 3. Next, the fourth step of installing a perforated plate (9) at the inlet of the vertical sphere (2,3). A method of constructing underground facility costs by using the vertical ball digging device according to any one of claims 1 to 3,
The first casing 14 is mounted in the inner casing 14 of the out casing 11 so that the propulsion shafts 13 and 15 communicate with each other, and then the propelling shafts 13 and 15 are blocked by the protective steel plate 30. Steps;
After installing the counter weight and the vertical ball digging device 10 in the dedicated machine (1), the vertical ball digging device 10 is inserted into the ground and inserted to cover the inner wall of the ground vertical ball (2 ') A second step of processing a block generated while forming a;
A third step of dismantling the vertical ball digging device (10) excavated in the vertical ball (2 '), and embedding the underground facility (4') in the interior space of the vertical ball digging device (10);
And a fourth step of removing sludge and water in the vertical sphere (2 ') and then installing a perforated plate (9) at the inlet of the vertical sphere (2'). The method of claim 4, wherein
Method of constructing underground facilities, characterized in that further comprising the step of injecting lubricant or cutting oil into the injection pipe 20 between the second step and the third step. The method of claim 4, wherein
Construction method of underground facilities, characterized in that it further comprises the step of placing / curing concrete on the bottom surface of the vertical hole (2) and the reaching vertical sphere (3) to form a bottom plate (60). The method of claim 4, wherein
Between the second step and the third step through the perforated hole 31 formed in the protective steel sheet 30, and then the anchoring packing to prevent the groundwater or the excavated soil from entering the interior of the underground facility on the outer periphery ( 70) The method of construction of underground facilities, further comprising the step of installing. 6. The method of claim 5,
Method of constructing underground facilities, characterized in that further comprising the step of injecting lubricant or cutting oil into the injection pipe 20 between the second step and the third step. 6. The method of claim 5,
Between the second step and the third step is to install the corrugated pipe 40 in the interior space of the vertical ball drilling device 10, and then to cast / cure concrete between the in casing 14 and the corrugated pipe 40 Forming a reinforcing portion 50 and the step of placing / curing concrete on the bottom surface of the vertical sphere (2 ') by the step of forming a base plate (60), characterized in that it further comprises.

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