KR20180000840A - It can use a hydraulic core drilling and concrete demolition hole drilling method for using it with a recovery function - Google Patents

Abstract

The present invention relates to a hydraulic core drill having a function of recovering used water and a drilling method for demolition of a concrete structure using the same. The hydraulic core drill comprises: a diffusion preventing and collecting means installed at a lower portion of a drilling bit to reduce noise generated during drilling, to prevent diffusion of dust and sludge as well as the used water generated during the drilling, and to collect the dust, sludge, and used water; and a settling means receiving the used water containing the dust and sludge collected by the diffusion preventing and collecting means naturally or forcibly through a pump, and settling the sludge contained in the used water to discharge only pure water to the outside. Therefore, it is possible to prevent the used water, which is used to reduce heat and noise generated when a predetermined size hole is formed in a reinforced or non-reinforced concrete structure and to prevent generation of sludge and dust, from being diffused and polluting the environment, and to prevent the used water from flowing into a river or the sea to debase the water quality. In addition, it is possible to prevent some sludge, which may be scattered in spite of the input of used water during the drilling, from being scattered and polluting the surrounding air as described above. Moreover, if necessary, an additional filter is installed in the diffusion preventing and collecting means or in a separate sludge settling tank to collect and filter the used water having been used during the drilling, and the collected used water may be reused as water for preventing diffusion of the used water and dust. Accordingly, waste of water resources may be prevented.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hydraulic core drill having a used water recovery function and a hole drilling method for a concrete structure demolition hole using the hydraulic core drill.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic core drill having a used water recovery function and a hole boring method for dismantling a concrete structure using the hydraulic core drill. More particularly, the present invention relates to a hydraulic core drill, (Water used) used for cooling the heat generated at the time of excavation and reducing the noise and preventing the occurrence of sludge and dust, It is possible to prevent the water pollution of the river or the sea, and at the same time, although the drilling of the hole is performed by injecting the water as described above, some sludge is scattered or the environmental pollution And the sludge is collected by collecting the used water used at the time of excavation, Is the invention to prevent dust scattered by the manner in which re-use the water for preventing unnecessary increase of water amount used in advance.

Generally, there are many cases where excavation work is performed on rock mass in various construction sites, and vibro hammer drill is used for dismantling of reinforced or non-rigid concrete structures. When excavating a rock with a vibro hammer drill, severe vibration and noise Which causes a lot of damage to the people around the work site as well as slowing down the work efficiency.

Therefore, a method of cracking a reinforced or non-reinforced concrete structure by drilling holes of a certain size in a reinforced or non-reinforced concrete structure and then putting a crusher into the holes is mainly used. In order to perform such a method, basically, A perforation device capable of drilling holes was required.

A conventional perforating apparatus, that is, a hydraulic core drill, is provided with a core tube that can be raised and lowered between a pair of support plates connected to an excavator, and a pair of guide rods for guiding the rise and fall of the core tube, And a drilling bit is rotatably disposed at a lower portion of the core tube by a hydraulic motor. The device for raising and lowering the core tube is composed of a cylinder type or a chain.

The hydraulic core drill type perforators for piercing reinforced or non-reinforced concrete structures while raising and lowering the perforated bit rotated by the hydraulic motor and the perforation made of the core tube include registered utility model No. 361015, registered utility model No. 384177, Patent Application No. 2005-107055, Patent Application No. 2005-113220, Patent Application No. 2006-8655, and Patent No. 637677 have been disclosed.

When a hole is drilled in a reinforced or non-welded concrete structure using a hydraulic core drill having the above-described structure, water is supplied to the drilled bit side through the inside of the core tube to cool the heat generated during excavation, It is possible to prevent the generation of sludge and dust as well as the reduction of the amount of generated water.

However, the conventional hydraulic core drill is not equipped with a separate dispersion and diffusion preventing device for collecting used water (used water) used in excavation as described above, The use water is scattered around the hole formed by the hydraulic core drill together with the generated sludge so as to pollute water quality such as rivers, rivers or oceans including the surrounding environment, A part of the sludge is scattered to pollute the air, and the water used once is discarded as it is, and it is impossible to reuse it, resulting in a waste of unnecessary water resources.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the related art, and it is an object of the present invention to provide a hydraulic core drill, which is installed in an excavator and excavates a hole having a predetermined diameter, And dust and sludge are prevented from diffusing and scattering to the surroundings and diffusion preventing and collecting means capable of collecting the dust and sludge are installed to excavate a hole of a predetermined size in a reinforced or non-reinforced concrete structure The use of water for cooling the heat, reducing the noise, preventing the generation of sludge and dust, etc., is scattered and pollutes the environment, and this use water flows into the rivers, rivers or oceans, It is possible to prevent the water from being used in advance, It is possible to prevent some sludge from being scattered and pollute the surrounding air in spite of excavating the hole, and if necessary, a filter may be installed in the diffusion preventing and collecting means or in a separate sludge settling tank A hydraulic core drill having a used water collecting function capable of collecting and filtering spent water used in excavation and reusing it as water for use or dust splash prevention to prevent unnecessary waste of water resources, and a concrete structure And to provide a method of drilling holes for dismantling.

In order to achieve the above object, a hydraulic core drill according to the present invention comprises a pair of guide rods for vertically moving up and down a core tube between a pair of upper and lower support plates interconnected by both side plates, Wherein a core tube is installed between the guide rods so as to be able to move up and down, and a drilling bit is rotatably provided at a lower portion of the core tube by a hydraulic cylinder or a motor, A diffusion preventing and collecting means for reducing noise generated during excavation of holes and preventing the diffusion of dust and sludge generated during excavation including used water and collecting them; A sedimenting means for forcibly transporting the used water containing dust and sludge collected through the diffusion preventing and collecting means naturally or through a pump to precipitate the sludge contained in the used water and to discharge pure water only to the outside; Is provided.

One embodiment of the diffusion preventing and collecting means includes a cylindrical collecting tube having a bottom surface and a perforation bit hole formed at the center of the top surface thereof, ; And an elastic contact member elastically brought into close contact with the structure in a state where the cylindrical collecting pipe is fixed to the low main surface of the cylindrical collecting pipe so that sludge including used water does not leak to the outside.

Another embodiment of the diffusion preventing and collecting means includes a pair of collecting tube connecting rods fixed to both side plates; A cylindrical collecting tube having a bottom surface and being perforated with a perforation bit hole at the center of the upper surface thereof, a collecting material discharge hole formed in the bottom portion thereof, a pair of coupling members on both sides of the outer circumferential surface thereof and detachably coupled to the collecting tube coupling rod; And an elastic contact member elastically brought into close contact with the structure in a state where the cylindrical collecting pipe is fixed to the low main surface of the cylindrical collecting pipe so that sludge including used water does not leak to the outside.

At this time, an end portion of the collecting tube connecting rod is further provided with a release preventing member for preventing diffusion and separation of the collecting means itself. The elastic contact member may be formed into a circular ring shape using rubber or silicone, or may be formed into a cylinder-shaped JAVA LASIK so that the shrinkage and expansion can be performed in the upward and downward directions.

Further, the engaging member may include: a tubular body into which the collecting tube connecting rod is fitted; A bar for fixing the tubular body to the cylindrical collecting tube; And a bolt for fixing the tubular body on the outer circumferential surface of the collection tube coupling rod. In addition, a piston ring is further provided in the perforated bit passage hole formed in the upper surface of the cylindrical collecting pipe to prevent the used water and the sludge particles from flowing out through a gap between the core tube and the perforated bit passage hole.

In addition, a plurality of spacers are formed on the inner surface of the cylindrical collecting pipe so as to have a plurality of through holes at predetermined intervals and have a longitudinal shape of "", so that the cylindrical collecting pipe is prevented from flowing during excavation And the sludge of particles larger than the diameter of the through hole is not transferred to the sedimenting means side.

In addition, a porous filter having a perforated bit passage hole at the center is provided on the inner surface of the cylindrical collecting pipe to prevent the cylindrical collecting pipe from flowing during excavation, and at the same time, The sludge of larger particles is filtered and only the number of sludges containing particles smaller than that is transported to the side of the sedimentation means.

A flexible hose is connected between the sedimenting means and the spraying water for anti-dust scattering. The intermediate portion of the flexible hose is provided with a water tank for pumping clear water separated by a sedimenting means And a pump motor for forcibly sending and receiving the water to the spray tank for dust scattering prevention is further provided.

The sedimenting means comprises a pneumatic primary sedimentation tank for precipitating sludge of relatively coarse particles in the sludge contained in the used water transferred from the diffusion preventing and collecting means; A fine filter-type secondary settler having a fine filter and filtering the suspended matters contained in the used water overflowing the history-type primary settler; And a third natural precipitation tank for re-precipitating the sludge contained in the used water having passed through the fine filter type secondary settling tank. The sludge discharge port may further include a sludge discharge port for selectively discharging sludge precipitated in the sludge to the outside.

In order to accomplish the above object, the present invention provides a method of drilling a hole for drilling a concrete structure using a hydraulic core drill according to the present invention, comprising the steps of: guiding a core tube up and down between a pair of upper and lower support plates interconnected by both side plates; Wherein a pair of guide rods are installed in a vertical direction, and a core tube is installed between the guide rods so as to be able to move up and down, and a drilled bit is rotatably provided by a hydraulic cylinder or a motor A method for drilling a hole having a predetermined diameter in a reinforced concrete or non-concrete concrete structure using a drill, comprising the steps of: providing a bottom of the hydraulic core drill so that diffusion prevention and collection means are fixed or detachable; Installing a hydraulic core drill having diffusion preventing and collecting means at a desired place; Providing a settling means around the hydraulic core drill and connecting a hose provided with a pump between the diffusion preventing and collecting means and the settling means; Supplying the used water to the perforated bit side, operating the hydraulic core drill to perforate the hole, collecting the used water and the sludge and dust through the diffusion preventing and collecting means; A step of operating the pump to transfer used water and sludge collected in the diffusion preventing and collecting means to the settling means side; And a step of precipitating and filtering the sludge and suspended matter contained in the used water transferred from the diffusion preventing and collecting means in the sedimenting means.

In addition, the pure water that has been separated due to the filtration and sedimentation of the floating matters and the sludge by the above-described sedimentation means is forcedly supplied and sent to the use water tank for pumping or the spray water tank for dust scattering prevention Further comprising the steps of:

The method further includes polishing the surface of the concrete structure and flattening the surface of the concrete structure before installing the hydraulic core drill equipped with the diffusion preventing and collecting means at a desired place. In addition, when a hydraulic core drill equipped with a diffusion preventing and collecting means is installed in a concrete structure, the lower end of the diffusion preventing and collecting means is temporarily attached to the contact portion of the concrete structure with a pressure sensitive adhesive to thereby leak used water and sludge to the outside The adhesive is characterized in that it comprises rubber, clay or loess.

On the other hand, when the suspended solids and sludge contained in the used water are filtered and precipitated through the sedimentation means, the sludge of the coarse particles contained in the used water is precipitated through the pillar-shaped primary settling tank, and then the fine filtered secondary settling tank The filtrate of the suspended solids contained in the spent water flowing over the pile-shaped first settling tank is filtered through the third natural sedimentation tank, and the remaining sludge contained in the used water passed through the fine filter- Is performed.

As described above, according to the present invention, not only noise reduction but also use water, dust and sludge flow to the periphery of a hydraulic core drill installed in an excavator and excavating a hole having a predetermined diameter in a reinforced concrete or non- Diffusion preventing and scattering means capable of collecting and dispersing these substances are installed in the reinforcing or non-reinforcing concrete structure, thereby cooling the heat generated when holes of a predetermined size are drilled in the reinforcing or non-reinforcing concrete structure, reducing the noise, It is possible to prevent the use water from flowing into the river, river, sea or the like to contaminate the water quality, including that the use water used to prevent the generation of dust or the like is scattered and pollutes the environment, Even though drilling the hole while injecting the use water as in It is possible to prevent the surrounding air from being contaminated by scattering some of the sludge, and if necessary, by further installing a filter in the diffusion preventing and collecting means or in another sludge settling tank, It is possible to collect the used water and collect the used water and reuse it as the water for use or the dust splash prevention water, thereby preventing unnecessary waste of water resources.

FIG. 1 is a perspective view of a hydraulic core drill to which one embodiment of diffusion preventing and collecting means provided with a ring-type elastic contact member in the present invention is applied. FIG. 2 (a) FIG. 3 is an enlarged cross-sectional view of a main portion before and after a hydraulic core drill to which an embodiment of diffusion preventing and collecting means applied is installed on a rock plate. FIG. 3 is a cross sectional view of a diffusion preventing and collecting means FIG. 2 is a schematic diagram showing an interconnecting state of an embodiment with a settling means and a used water tank or a spraying water tank for preventing dust scattering. FIG.
4 is a perspective view of a hydraulic core drill to which one embodiment of the diffusion preventing and collecting means provided with the bellows type elastic contact member of the present invention is applied. FIGS. 5 (a) and 5 (b) FIG. 6 is an enlarged cross-sectional view of a substantial part before and after a hydraulic core drill to which an embodiment of the diffusion preventing and collecting means provided with a tight contact member is applied, and FIG. 6 is a view showing a diffusion Preventing and collecting means, and an interconnecting state of a settling means and a used water tank or a spraying water tank for preventing dust scattering.
7 is a perspective view of a hydraulic core drill to which another embodiment of the diffusion preventing and collecting means provided with the ring-type elastic contact member of the present invention is applied. Fig. 8 is a cross- FIG. 9 is an enlarged cross-sectional view showing a main part of the engagement state of the diffusion preventing and collecting means provided with the ring-type elastic contact member in FIG. 7, and FIG. 7B is an enlarged perspective view of another embodiment of the separation preventing member shown in FIG. 7, and FIG. 11 is a block diagram showing the entire structure of the sedimentation means of the present invention. On the other hand, Fig. 12 shows a flowchart for explaining the method of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a hydraulic core drill to which one embodiment of diffusion preventing and collecting means provided with a ring-type elastic contact member of the present invention is applied.

  FIG. 2 (a) and FIG. 2 (b) are enlarged sectional views of the main part before and after installing the hydraulic type core drill to which the embodiment of the diffusion preventing and collecting means provided with the ring type elastic contact member is applied.

  FIG. 3 is a schematic view showing an embodiment of a diffusion preventing and collecting means provided with a ring-shaped elastic contact member and a porous filter, and a mutual connection state of a settling means and a used water tank or a spraying water tank for preventing dust scattering.

  4 is a perspective view of a hydraulic core drill to which one embodiment of the diffusion preventing and collecting means provided with the bellows type elastic contact member of the present invention is applied.

  5 (a) and 5 (b) are enlarged cross-sectional views of a main part before and after installing a hydraulic core drill to which the embodiment of the diffusion preventing and collecting means provided with the bellows type elastic contact member is applied.

  6 is a schematic view showing an embodiment of a diffusion preventing and collecting means provided with a bellows type elastic contact member and a porous filter, and a mutual connection state of a settling means and a used water tank or a spraying water tank for preventing dust scattering.

  7 is a perspective view of a hydraulic core drill to which another embodiment of the diffusion preventing and collecting means provided with the ring type elastic contact member of the present invention is applied.

  FIG. 8 is an exploded perspective view of a diffusion preventive and collecting means and a release preventing member provided with a ring-shaped elastic contact member in FIG. 7 according to an embodiment; FIG.

  Fig. 9 is an enlarged cross-sectional view of the essential part of the engagement state of the diffusion preventing and collecting means provided with the ring-shaped elastic contact member in Fig. 7;

  10 (a) and 10 (b) are enlarged perspective views of still another embodiment of the release preventing member in Fig. 7;

  11 is an overall block diagram of the sedimentation means in the present invention.

  12 is a flow chart for explaining the method of the present invention.

  The hydraulic core drill of the present invention includes a pair of upper and lower support plates 12 and 13 connected to each other by both side plates 11 and a pair of guides A core tube 15 is installed between the guide rods 14 so as to be able to move up and down between the guide rods 14 and a drilling bit 16 is provided at a lower portion of the core tube 15, A hydraulic core drill rotatably installed by a cylinder or motor (17) is provided below the drilled bit (16) to reduce noise generated when drilling a hole. The drill bit Diffusion preventing and collecting means (20) for preventing diffusion of sludge and collecting them;

The water containing dust and sludge collected through the diffusion preventing and collecting means 20 is forcibly transferred naturally or through the pump 41 to precipitate the sludge contained in the used water, And a sedimenting means (30) for discharging the sediment.

  1 to 6, a bottom surface is wound and a perforation bit hole 211 is formed at the center of the upper surface of the diffusion preventing and collecting means 20, A cylindrical collecting pipe 21 having a pierced material discharge hole 212 and fixed to the lower supporting plate 13;

And an elastic contact member 22 elastically brought into close contact with the concrete structure in a state of being fixed to the lower main surface of the cylindrical collecting pipe 21 to prevent sludge including used water from leaking to the outside.

Another embodiment of the diffusion preventing and collecting means 20 includes a pair of collecting tube connecting rods 23 fixed to the both side plates 11 as shown in Fig. 7;

And a pair of engaging members 24 are provided on both sides of the outer circumferential surface of the engaging member 24. The engaging member 24 is engaged with the engaging member 24, A cylindrical collecting tube (21) detachably coupled to the rod (23);

  And an elastic contact member 22 elastically brought into close contact with the concrete structure in a state of being fixed to the lower main surface of the cylindrical collecting pipe 21 to prevent sludge including used water from leaking to the outside.

At this time, a separation preventing member (25) is further provided at the end of the collection tube coupling rod (23) to prevent diffusion and release of the collection means (20) itself. 8 and 9, a hole 231 may be formed in the lower end of the collecting tube coupling rod 23 and the split pin 251 may be provided in the separation preventing member 25, a screw 232 may be formed at the lower end of the collecting tube coupling rod 23 and the two nuts 252 and the washer 253 may be screwed together as shown in FIG. (b), an engaging groove 233 is formed at the lower end of the collecting tube connecting rod 23, and an E-ring 254 is detachably installed in the engaging groove 233. The elastic contact member 22 may be formed into a circular ring shape as shown in Figs. 1 to 3 or Figs. 7 to 9 by using rubber or silicone, or may be formed into a circular ring shape in the upward and downward directions as shown in Figs. And is formed into a cylindrical JAVA LASIK so that expansion can be freely performed. 8, the coupling member 24 includes a tube body 241 into which the collection tube coupling rod 23 is fitted;

A bar 242 for fixing the tubular body 241 to the cylindrical collecting tube 21; And a bolt 243 for detachably fixing the tubular body 241 on the outer circumferential surface of the collecting tube connecting rod 23.

In addition, in the perforated bit passage hole 211 formed in the upper surface of the cylindrical collecting pipe 21, the use water and the sludge particles are prevented from flowing out into the gap between the core tube 15 and the perforated bit passage hole 211 And a piston ring (26) is further provided. In addition, a plurality of through holes 271 are formed in the inner surface of the cylindrical collecting pipe 21 with a predetermined interval, and a spacing holder 27 formed of a rubber material is further provided so as to have a longitudinal section of "" The cylindrical collecting pipe 21 is prevented from flowing and the sludge of particles larger than the diameter of the through hole 271 is not transferred to the sedimenting means 30 side.

A porous filter 28 having a perforation bit passage hole 281 at the center is further provided on the inner surface of the cylindrical collecting pipe 21 so as to prevent the cylindrical collecting pipe 21 from flowing during excavation, The sludge of particles larger than the pores of the porous filter 28 is filtered and only the number of the sludge containing particles smaller than that of the sludge is transported to the sedimenting means 30 side.

A flexible hose 51 is connected between the sedimenting means 30 and the drinking water tank for diving or the spraying water tank 50 for preventing dust scattering. In the middle portion of the flexible hose 51, And a pump motor (52) for forcibly sending and discharging the clear water separated by the water supply tank (30) to the side of the water for use for pumping or the spray tank (50) for dust scattering prevention is further provided.

The sedimenting means 30 includes a pneumatic primary sedimentation tank 31 for precipitating sludge of relatively coarse particles in the sludge contained in the used water transferred from the diffusion preventing and collecting means 20 as shown in Fig.

A microfilter type secondary settling tank 32 having a microfilter therein and filtering the suspended matters contained in the used water that overflows the history pail type primary settling tank 31;

And a tertiary natural sedimentation tank (33) for re-precipitating sludge contained in the used water having passed through the fine filter-type secondary settling tank (32).

At this time, the sludge outlet 311 is provided at the bottom of the phonetic primary settling tank 31 so that sludge precipitated in the sludge can be selectively discharged to the outside. In the meantime, as shown in FIG. 12, in the hole drilling method using the hydraulic core drill of the present invention or for disassembling a concrete structure,

A pair of guide rods 14 for guiding the rise and fall of the core tube 15 are installed in a vertical direction between a pair of upper and lower support plates 12 and 13 connected to each other by the both side plates 11 A core tube 15 is installed between the guide rods 14 so as to be able to move up and down and a drilling bit 16 is rotatable by a hydraulic cylinder or a motor 17 at a lower portion of the core tube 15. [ A method for drilling a hole having a predetermined diameter in a reinforced concrete or non-reinforced concrete structure using a hydraulic core drill,

(S1) of fixing or detaching the diffusion preventing and collecting means (20) to the bottom of the hydraulic core drill; (S2) of installing a hydraulic core drill having a diffusion preventing and collecting means (20) at a desired place; (S3) of installing a sedimenting means (30) around the hydraulic core drill and connecting a hose (42) equipped with a pump (41) between the diffusion preventing and collecting means (20) and the sedimenting means (30);

(S4) of supplying the used water to the perforated bit (16) and operating the hydraulic core drill to perforate the hole as well as collecting the used water, sludge and dust through the diffusion preventing and collecting means (20);

(S5) of operating the pump (41) to transfer the used water and sludge collected in the diffusion preventing and collecting means (20) to the settling means (30) side;

(S6) of causing the sedimenting means (30) to sediment and filter the sludge and suspended matter contained in the used water transferred from the diffusion preventing and collecting means (20). The pure water used for separation and filtration of the suspended solids and sludge by the sedimenting means 30 can be discharged to the water for pumping using the pump motor 52 or the spraying sprayer for dust scattering (S7) for forcibly sending and receiving the water to the tank (50) side. Further, the method further includes a step S1-1 of polishing the surface of the concrete structure and flattening the surface of the concrete structure before installing the hydraulic core drill equipped with the diffusion preventing and collecting means 20 at a desired place do. In addition, when the hydraulic core drill having the diffusion preventing and collecting means 20 is installed on the concrete structure, the lower end portion of the diffusion preventing and collecting means 20 is temporarily attached to the contact portion of the concrete structure with the adhesive 60 And a step (S2-1) of preventing the used water and the sludge from leaking to the outside. At this time, the pressure sensitive adhesive 60 includes rubber, clay or loess. On the other hand, when the suspended matters and the sludge contained in the used water are filtered and deposited (S6) through the sedimenting means 30, the sludge of coarse particles contained in the used water is precipitated through the first type primary settling tank 31 And then the suspended matters contained in the spent water flowing over the pillar-shaped primary settling tank 31 are filtered through the fine filter-type secondary settling tank 32 and then passed through the tertiary natural settling tank 33, And the remaining sludge contained in the used water having passed through the tea settling tank (32) is settled again. Hereinafter, the operation and effect of the present invention will be described. First, the hydraulic core drill of the present invention is characterized in that, in a known hydraulic core drill, a diffusion preventing and collecting means 20 is provided below the perforation bit 16, and a precipitating means 30 is provided around the hydraulic core drill It is possible to reduce the noise generated when excavating a hole having a predetermined diameter in a reinforced or non-reinforced concrete structure and to prevent the diffusion of dust and sludge generated during excavation, including use water, And to be reused as water that is used to prevent the scattering of dust or water in use on the spot.

All. At this time, the diffusion preventing and collecting means 20 may be provided with two types of embodiments that are completely fixed to the hydraulic core drill itself and that can be detachably installed as needed. 1 to 6, a cylindrical collecting tube 21 and an elastic contact member 22 are formed. In the cylindrical collecting tube 21, a bottom surface of the cylindrical collecting tube 21 is exposed, A perforated bit passage hole 211 is formed at the center and a collecting material discharge hole 212 connected to the sedimenting means 30 through the hose 42 is perforated and fixed to the lower supporting plate 13 It has an installed form.

At this time, only the hose 42 is connected between the sedimenting means 30 and the collecting material discharge hole 212 of the cylindrical collecting pipe 21 so that the used water and sludge collected in the cylindrical collecting pipe 21 are naturally precipitated And the pump 41 may be provided in the hose 42 to force the used water and the sludge collected in the cylindrical collecting pipe 21 to be supplied to the sedimenting means 30).

The elastic contact member 22 is formed into a circular ring shape by using rubber or silicone, or is formed into a cylindrical JAVA type so that the elastic contact member 22 can be expanded and contracted in the upward and downward directions. And the sludge including the used water is prevented from leaking to the outside when the concrete structure is fixedly installed on the main surface.

7 to 10, the diffusion preventing and collecting means 20 according to another embodiment of the present invention is different from the above embodiment in which only the cylindrical collecting tube 21 and the elastic contact member 22 are formed, A pair of engaging members 24 are further provided on both sides of the outer circumferential surface of the collecting tube 21 and a pair of collecting tube connecting rods 23 are further provided on both side plates 11 of the hydraulic core drill, And the collecting means 20 themselves can be detachably attached to the hydraulic core drill.

At this time, the coupling member 24 includes a tube body 241 to which the collection tube coupling rod 23 is inserted, a bar 242 to fix the tube body 241 to the cylindrical collection tube 21, 241 are detachably fixed on the outer peripheral surface of the collecting tube connecting rod 23 so that the cylindrical collecting tube 22 is integrally fixed to the bottom surface thereof with an elastic contact member 22 The bolt 243 coupled to the tubular body 241 is loosely loosened and then the tubular body is inserted into the hole of the tubular body 241 so that the tubular tubular rod 23 is inserted into the tubular body 241, When the bolt 243 is tightened after the tube 21 is properly lifted and lowered to a desired height on the collection tube coupling rod 23, the tube body 241 itself is fixed to the collection tube coupling rod 23, The collecting tube 21 is fixed to the collecting tube connecting rod 23 through the coupling member 24 All.

On the other hand, when the diffusion preventing and collecting means 20 is detachably attached to the pair of collecting tube coupling rods 23 provided on the both side plates 11 of the hydraulic core drill as described above, It may be troublesome to repeatedly perform the operation of separating or installing the diffusion preventing and collecting means 20 from the hydraulic core drill every time it is desired to install it in a new place. Therefore, in the present invention, 23) is provided with a release preventing member (25) for preventing the diffusion preventing and collecting means (20) from escaping. 8 and 9, a hole 231 is formed in the lower end of the collecting tube connecting rod 23, and the separation pin 251 Even if the bolt 243 of the coupling member 24 is loosened, the cylindrical collecting tube 21 integrally provided on the bottom surface of the elastic contact member 22 is prevented from being detached from the collecting tube coupling rod 23 As shown in FIG. 10 (a), a thread 232 is formed at the lower end of the collecting tube connecting rod 23, and two nuts 252 and a washer 253 are screwed together The cylindrical collecting tube 21 integrally provided on the bottom surface of the elastic contact member 22 can be prevented from being separated from the collecting tube connecting rod 23 as shown in Figure 10 (b) The E-ring 254 is detachably attached to the engaging groove 233 to form an engaging groove 233 on the periphery of the lower end of the elastic member 23, It is possible to prevent the cylindrical collecting tube 21 integrally provided on the bottom surface of the holding member 22 from being detached from the collecting tube connecting rod 23. [

The embodiments of such a release preventing member 25 can not be limited to this, and other embodiments are not shown but may be implemented by various other embodiments.

When the diffusion preventing and collecting means 20 is installed on the bottom of the hydraulic core drill so as to be fixed or detachable, at least the position of the bottom surface of the cylindrical collecting pipe 21 is adjusted so that the bottom end of the cylindrical collecting pipe 21 does not contact the concrete structure. A part of the elastic contact member 22 provided on the bottom surface of the cylindrical collecting pipe 21 is provided so as to protrude downward longer than the leg of the hydraulic core drill so that the hydraulic core drill It is preferable that a part of the elastic contact member 22 formed of silicone or rubber is compressed so as to have a circular ring or a cylindrical bellows shape when it is installed on the structure and is brought into contact with the concrete structure in a close contact manner.

When the hydraulic core drill itself is installed at a predetermined position of the concrete structure to be drilled in a state where the diffusion preventing and collecting means 20 is installed or fixed to the bottom of the hydraulic core drill as described above, If it is not flat and rough or rugged, a clearance is generated between the elastic contact member 22 and the concrete structure, so that the used water and the slurry collected by the diffusion preventing and collecting means 20 leak out through the gap Therefore, in this case, it is preferable to polish the surface smoothly by using a grinder or the like so that the elastic contact member 22 and the concrete structure are in contact or in close contact with each other.

In addition, when the elastic adhesion member 22 of the diffusion preventing and collecting means 20 and the contact portion of the concrete structure are adhered to each other by using the adhesive 60 such as rubber, clay, or loess, It is possible to further maintain the airtightness between the elastic contact member 22 of the collecting means 20 and the contact portion of the concrete structure so that the leakage of the used water and the slurry collected by the diffusion preventing and collecting means 20 can be completely . The core tube 15 including the drilling bit 16 of the hydraulic core drill may be passed through a perforation bit passage hole 211 for penetrating the upper surface of the cylindrical collecting pipe 21 of the diffusion preventing and collecting means 20, There is a possibility that a part of the used water collected in the cylindrical collecting pipe 21 and the sleeve or the like may flow out to the outside through a gap between the core tube 15 and the perforated bit passage hole 211.

Therefore, in the present invention, a rubber ring-shaped piston ring 26 is additionally provided in the perforated bit passage hole 211 formed in the upper surface of the cylindrical collecting pipe 21 of the diffusion preventing and collecting means 20, 21 can be completely prevented from flowing out to the outside through a gap between the core tube 15 and the perforated bit passage hole 211. In addition,

In addition, when the inside of the cylindrical collecting pipe 21 of the diffusion preventing and collecting means 20 is left as a hollow space, the cylindrical collecting pipe 21 flows due to vibration or the like when the hydraulic core tube is operated, 21, the core tube 15 and the perforated bit 16 may not maintain a constant state, and relatively large particles of the sludge generated by excavation of the perforated bit 16 may be trapped in the cylindrical trap There is a possibility that the collecting material discharge hole 212 formed in the pipe 21 is blocked and the used water and the sludge can not be smoothly transferred to the settling means 30 side. Accordingly, in the present invention, as a first method for preventing occurrence of such phenomenon in advance, as shown in FIGS. 2A, 2B, 5A and 5B and FIG. 9, A plurality of spacing holes 27 are formed in the inner surface of the tube 21 at predetermined intervals and further provided with spacing holes 27 formed in rubber so as to have a vertical cross-section of "" Is kept in contact with the outer circumferential surface of the core tube 15 and the perforated bit 16 so that it is possible to prevent the cylindrical collecting pipe 21 from flowing during the excavation as well as to prevent the cylindrical collecting pipe 21 The sludge having a diameter larger than the diameter of the through hole 271 formed in the gap retaining hole 27 does not pass through the through hole 271 of the gap retaining hole 27 and is transported toward the sedimenting means 30 So that the trapping material discharge hole 212 formed in the cylindrical collecting pipe 21 becomes large It is possible to prevent the sludge or the like including the used water from clogging by the sludge from being conveyed to the sedimenting means 30 side.

3 and 6, a porous filter (not shown) having a perforation bit passage hole 281 at the center of the cylindrical collecting pipe 21 instead of the gap retaining hole 27 is provided on the inner surface of the cylindrical collecting pipe 21, The core tube 15 and the perforated bit 16 are held at the same interval as the cylindrical collecting tube 21 in a state where the core tube 15 and the perforated bit 16 are fitted in the perforation bit passage hole 281 of the porous filter 28 The sludge of particles larger than the pores of the porous filter 28 among the sludges contained in the working water can be prevented from being filtered during the excavation and the sludge of particles smaller than that of the sludge It is possible to prevent the trapping material discharging holes 212 formed in the cylindrical collecting pipe 21 from being clogged by the large sludge particles as well as to prevent the clogging of the fine pores To Because the transfer can only use and sludge which has passed through the porous filter 28, it is possible also to obtain the number of re-precipitation, and filtering carried gongjeongreul less with subsequent sedimentation means (30).

At this time, it is obvious that the porous filter 28 is clogged by sludge or the like when used for a long period of time. Therefore, it is possible to obtain a lasting effect only after checking the degree before checking the excavation and washing or replacing it with a new one.

On the other hand, the sedimentation means 30 is provided with a means for preventing the use of water containing dust and sludge collected through the diffusion preventing and collecting means 20 naturally or by force through the pump 41, The sludge is settled and only purified water is discharged to the outside. In the present invention, as shown in FIG. 11, the history of the phonetic first settling tank 31, the fine filter type second settling tank 32 and the third natural settling tank 33 Respectively.

In this case, the pillar-shaped first settling tank 31 has a relatively large particle size of the sludge contained in the used water that has been naturally transferred from the diffusion preventing and collecting means 20 or transferred through the pump 41, And the like.

In this case, since the relatively large amount of sludge is deposited on the bottom surface of the pillar-shaped first settling tank 31 as described above, relatively large amount of sludge can be accumulated in a short time, and the sludge must be frequently cleaned. Therefore, in the present invention, the sludge discharge port 311 is further provided on the bottom of the first type primary settlement tank 31, so that the sludge precipitated in the sludge can be easily discharged to the outside without using other tools.

The fine filter-type secondary settling tank 32 is provided with a micro filter and a function of filtering the suspended matters contained in the used water that is firstly settled through the first type primary settling tank 31 and overflowed And the tertiary natural sedimentation tank 33 may be used as sedimentation water for preventing use of diving or scattering of sludge contained in the used water having passed through the fine filter type secondary settling tank 32 do.

In addition, since the used water precipitated and filtered by the sedimenting means 30 has sufficient water quality to be reusable, in the present invention, the sedimentation means 30 and the use water tank for diving or the spraying water tank 50 And a flexible hose 51 having a pump motor 52 therebetween, it is possible to collect and collect the used water used for excavation and reuse it as water for use or dust splash prevention, thereby avoiding waste of unnecessary water resources It can be prevented in advance. On the other hand, in the hole boring method of the present invention using the hydraulic core drill having the used water recovery function, the diffusion preventing and collecting means 20 is fixedly or removably installed on the bottom of the hydraulic core drill (S1) The hydraulic core drill equipped with the diffusion preventing and collecting means 20 is installed at a desired place (S2).

Before the hydraulic core drill equipped with the diffusion preventing and collecting means 20 is installed at a desired place, the surface state of the concrete structure is checked. If the surface is not smooth and rough or uneven, the elastic contact member 22 There is a fear that a clearance is generated between the concrete structures and the water used for collection and sludge collected by the diffusion preventing and collecting means 20 leaks to the outside through the gap. In this case, the surface of the concrete structure is polished (S1-1) is further carried out so that the elastic contact member 22 and the concrete structure are brought into contact or close contact with each other.

In addition, when a hydraulic core drill equipped with the diffusion preventive and collecting means 20 is installed on the concrete structure, a rubber or clay (not shown) is sandwiched between the elastic contact member 22 of the diffusion preventing and collecting means 20 and the concrete structure, (S2-1) of temporarily adhering the adhesive sheet (20) to the concrete structure (20) by using a pressure sensitive adhesive (60) such as alum It is possible to completely prevent leakage of the water for pumping and sludge collected by the diffusion preventing and collecting means 20 to the outside.

When the hydraulic core drill equipped with the diffusion preventing and collecting means 20 is installed at a desired position of the concrete structure S2 and S2-1 as described above, The means 30 is installed and the hose 42 with the pump 41 is connected between the diffusion preventing and collecting means 20 and the settling means 30 and then the used water is supplied to the perforated bit 16, And a hydraulic core drill is operated to perforate a hole having a predetermined diameter in the concrete structure, as well as to collect used water, sludge and dust through the diffusion preventing and collecting means (S4).

The pump 41 is operated to feed the used water and the sludge collected in the diffusion preventing and collecting means 20 to the settling means 30 side (S5) and to be sent from the diffusion preventing and collecting means 20 The sludge and suspended matters contained in the hot water are precipitated and filtered in the sedimenting means 30 at S6. At this time, pure water for which the sludge and suspended matters have been removed through the sedimentation means 30 can be discharged In this case, in this case, there is a possibility that unnecessary water resources are wasted. Therefore, in the present invention, pure water for separation, which has been separated due to filtration and sedimentation of floating matters and sludge by the sedimentation means 30, (S7) of forcibly sending and receiving water to the spraying water tank 50 for spraying water for preventing dust from splashing, thereby preventing unnecessary waste of water resources.

Meanwhile, when the suspended matters and sludge contained in the used water are filtered and precipitated (S6) through the sedimentation means 30, the coarse particles contained in the used water The sludge is precipitated and then the suspended matters contained in the used water overflowing the history of the pillar type primary settling tank 31 are filtered through the fine filter type secondary settling tank 32 and then passed through the tertiary natural settling tank 33 The remaining sludge contained in the used water having passed through the fine filter type secondary settling tank 32 is settled again so that the collected water containing sludge and suspended matters can be reused as pure water for use will be.

At this time, the sedimenting means 30 can not limit the three-stage sedimentation system composed of the phonetic primary sedimentation tank 31, the fine filter-type secondary sedimentation tank 32 and the tertiary natural sedimentation tank 33, For example, when the porous filter 28 is installed on the inner surface of the cylindrical collecting pipe 21 of the diffusion preventing and collecting means 20, Before the sludge or the like is moved to the sedimenting means 30, since many sludges including thick sludge have already been filtered by the porous filter 28, the history is stored in the phonetic primary sedimentation tank 31 itself or the fine filter-

There may be a case where it is not necessary to install the tank 32 itself.

Meanwhile, after the holes are drilled at predetermined intervals using the hydraulic core drill having the diffusion preventing and collecting means 20 as described above, a crusher (not shown) is inserted into each hole and the crusher is operated to remove the rock, In this case, unlike the concrete structure, the reinforcement is installed inside the reinforced concrete structure. Therefore, after the cracks, cracks are formed in the cracks and the gas A step of cutting a reinforcing bar by introducing a cutter or the like is further performed and disassembled. Although the above-described embodiments describe a hydraulic core drill using an excavator that is generally used as a most preferable example of the present invention, the same principle can be applied to a hand-held small portable core drill that is moved to a workforce. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

11: side plate 12, 13: upper and lower support plates
14: guide rod 15: core tube
16: Drilling bit 17: Motor
20: diffusion preventing and collecting means 21: cylindrical collecting tube
211: Perforation bit passage hole 212:
22: elastic contact member
23: collection tube coupling rod 231: hole
232: thread 233:
24: coupling member 241: tubular body
242: Bar 243: Bolt
25: release preventing member 251:
252: Nut 253: Washer
254: E-ring 26: Piston ring
27: space maintaining hole 271: through hole
28: Porous filter 281: Perforation bit passage hole
30: sedimentation means 31: history phono type primary sedimentation tank
311: Sludge outlet
32: Fine filter type secondary settling tank 33: Third natural settling tank
41: Pump 42: Hose
50: Spray water tank for use water tank or dust scattering prevention
51: Flexible hose 52: Pump motor
60: Adhesive

Claims (11)

A pair of guide rods for vertically guiding the rising and lowering of the core tube are provided between a pair of upper and lower support plates mutually connected by both side plates and a core tube is installed between the guide rods so as to be able to move up and down And a drill bit is rotatably installed at a lower portion of the core tube by a hydraulic cylinder or a motor. The hydraulic core drill is installed at a lower portion of the drill bit to reduce noise generated when the drill is drilled, Diffusion preventing and collecting means for preventing and preventing diffusion of dust and sludge generated during excavation;
A sedimenting means for forcibly transporting the used water containing dust and sludge collected through the diffusion preventing and collecting means naturally or through a pump to precipitate the sludge contained in the used water and to discharge pure water only to the outside; Wherein the hydraulic core drill has a function to recover the used water.
The method according to claim 1,
The diffusion preventing and collecting means comprises:
A cylindrical collecting tube having a bottom surface and being perforated with a perforation bit hole at the center of the upper surface thereof and having a structure in which a collecting material discharge hole is perforated in the bottom surface portion and fixed to the lower supporting plate;
And an elastic contact member elastically brought into close contact with the structure in a state where the cylindrical collecting pipe is fixed to the low main surface of the cylindrical collecting pipe so that sludge including used water does not leak to the outside. The method according to claim 1,
The diffusion preventing and collecting means comprises:
A pair of collection tube attachment rods fixed to both side plates;
A cylindrical collecting tube having a bottom surface and a perforated bit passage hole formed at the center of the upper surface thereof, a collecting material discharge hole formed in the bottom thereof, a pair of coupling members provided on both sides of the outer circumferential surface thereof, ;
And an elastic contact member elastically brought into close contact with the structure in a state where the cylindrical collecting pipe is fixed to the low main surface of the cylindrical collecting pipe so that sludge including used water does not leak to the outside. The method of claim 3,
And a release preventing member is further provided at an end of the collection pipe coupling rod to prevent diffusion and release of the collecting means itself. The method according to claim 2 or 3,
Characterized in that the elastic contact member is formed into a circular ring shape by using rubber or silicone or is formed into a cylindrical JAVA type so as to be able to expand and contract in the upward and downward directions. . [4] The apparatus of claim 3, wherein the engaging member comprises: a tubular body to which the collecting tube connecting rod is fitted; A bar for fixing the tubular body to the cylindrical collecting tube;
And a bolt for fixing the tubular body on the outer circumferential surface of the collection tube connecting rod. The method according to claim 2 or 3,
Wherein a piston ring is further provided in the perforated bit passage hole formed in the upper surface of the cylindrical collecting pipe so as to prevent the used water and the sludge particles from flowing out through a gap between the core tube and the perforated bit passage hole. Hydraulic core drill with function. The method according to claim 2 or 3,
A plurality of spacers are formed on the inner surface of the cylindrical collecting pipe so as to have a plurality of through holes at predetermined intervals and have a vertical cross-section of "", so as to prevent the cylindrical collecting pipe from flowing during excavation, And the sludge of particles larger than the diameter of the through hole is not transferred to the sedimenting means side. The method according to claim 2 or 3,
A porous filter having a perforated bit passage hole at the center is provided on the inner surface of the cylindrical collecting pipe so as to prevent the cylindrical collecting pipe from flowing during excavation and at the same time, Characterized in that the sludge of the particles is filtered and transported to the side of the sedimentation means only the number of sludges including the sludge of smaller particles. The method according to claim 1,
Wherein the flexible hose is connected to a flexible hose between the sedimentation means and a spraying water tank for dumping and scattering prevention water. In the middle portion of the flexible hose, clear water separated by the sedimentation means is pumped into a water tank for pumping, And a pump motor for forcedly sending and receiving water to and from the tank for spraying water for preventing use. The method according to claim 1,
The sedimenting means includes a pillar-shaped primary sedimentation tank for precipitating sludge of relatively coarse particles in the sludge contained in the used water transferred from the diffusion preventing and collecting means;
A fine filter-type secondary settler having a fine filter and filtering the suspended matters contained in the used water overflowing the history-type primary settler;
And a third natural sedimentation tank for re-precipitating the sludge contained in the used water having passed through the fine filter-type secondary settling tank.

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