KR0145495B1 - Underground drilling method and device by multi and hammer auger machine - Google Patents

Abstract

The present invention damages the ground excavation equipment by allowing the hammer drill to perform the excavation work straight without the inclination to one side when the ground layer is hard or when the rock layer is buried in the ground using the ground excavator. The present invention relates to a ground excavation method and a device that combines a multi-hammer machine and a single hammer machine to efficiently carry out ground excavation without damaging or damaging it. There is a means for suspending a single hammer organ machine, a means for suspending a multi-hammer organ machine formed with a discharging hole at the center of the single hammer organ machine, and a discharging pipe communicating with the dismantling hole at the lower side of the multi-hammer organ machine. Means for assembling a multi-layered orga rod in multiple phases, and the single hammer organmer A multi-hammer comprising a means for inserting a small diameter organo rod, which is assembled and connected in a single-phase at the bottom of the inside, into a large diameter organo rod, and a plurality of small hammer drills in the lowermost side organo rod of the multi-hammer organ machine. The means for attaching the drill, and the single hammer drill attached to the lowermost organ rod of the single hammer organ machine, means for installing the inside of the discharge guide tube of the multi hammer drill, and the single hammer drill excavation work before the multi hammer drill After the progress of the multi-hammer drill will be characterized by a method of excavating the ground as a means to proceed with the excavation work.

Description

Ground Excavation Method and Apparatus Combining Multi Hammer Organ Machine and Single Hammer Organ Machine

1 and 2 is a front and side configuration diagram of a combination of a multi-hammer organ and a single hammer organ machine for explaining the present invention.

3 is a plan configuration diagram of the multi-hammer organ machine of the present invention.

4 is a front configuration diagram of the multi-hammer organ machine of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a side configuration diagram of a single hammer organ machine of the present invention.

7 and 8 are views showing the operation state of the multi-hammer drill and the single hammer drill of the present invention.

9 is a sectional view taken along the line B-B in FIG.

FIG. 10 is a bottom view showing a composite configuration state of a multi hammer drill and a single hammer drill constituting the composite hammer drill unit of the present invention. FIG.

11 to 13 is a ground excavation process for explaining the method of excavating the ground with the present invention.

Figure 14 is a side configuration showing the excavation of the ground with a conventional multi-hammer organ.

Figure 15 is a ground excavation process showing the excavation of the ground with a conventional multi-organ machine.

* Explanation of symbols for main parts of the drawings

1,100: crawler driving device 2,101: bearing pressure

3,102: Leader 4: Backstay

5: Single Hammer Organ Machine 6: Multi Hammer Organ Machine

7: Multi Hammer Drill 7a: Small Hammer Drill

8: Large Air Level 9: Single Hammer Drill

51,63: Output 52,65: Oga rod

53: Vertical Bar 54: Small Air Swivel

61a, 61b: power unit 62a, 62b: output gear

64: ring gear 66: topsoil pipe

67: landslide guide 71: connector

72: cylindrical case 73: pneumatic chamber

74: clay guide 75: clay judo

651,711: flange 652,712,713: through

653: Pneumatic pipe R, 110: Rock bed

In the present invention, when drilling the ground using a ground excavator, if the ground layer is hard (硬 質) or the rock layer is buried so that the hammer drill is excavated to perform the excavation work straight without the inclination to one side under the bias pressure The present invention relates to a ground excavation method and a device in which a multi hammer auger machine and a single hammer auger machine are combined to efficiently perform ground excavation without damaging or damaging equipment. .

In general, the ground excavator is a device for drilling the ground in order to install the foundation, such as piles that mainly support all the constructions that are built on the ground, the ground drilling equipment as shown in Figure 14 crawler driving device 100 and its It consists of a leader (Leader) (102) attached to the anterior support arm 101 and the orga machine 103 is suspended in the upper portion of the leader to move up and down, the orga machine 103 is an oga rod (104) ) Is multistage assembled downward, and the hammer drill 105 for drilling the ground is mounted on the lowermost side of the orga rod 104 assembled in multiple stages.

In addition, the hammer drill 105 has a variety of types depending on the size of the excavation hole to be excavated, it was usually equipped with a drill bit 106 consisting of a single body.

However, in the conventional ground excavator as described above, there is a problem in that the ground excavation work cannot be efficiently carried out in the excavation of the ground, and the drilling equipment is damaged or broken.

That is, when the rock layer 110 buried in the ground is inclined while the ground is excavated as a conventional ground excavator, one side portion of the bottom surface of the drill bit 106 which operates simultaneously with the rotating operation contacts the inclined rock layer 110. As a result, the drill bit 106 is subjected to a bias, and the drill bit 106 cannot excavate the rock layer 110 vertically vertically by the inclination action, and as much as the inclination angle θ as illustrated in FIG. 15. There was a problem that the rock layer 110 is excavated at an oblique angle, and when the excavation work is continuously performed even under such a problem, a vibration phenomenon occurs in the hammer drill 105. Such a vibration phenomenon is The hammer drill as well as the result of damaging or breaking the Oga rod 104, and in severe cases there was a problem that also damages the Oga machine (103).

In addition, the above problem is that the larger the hammer drill 105, the larger the diameter of the drill bit 106, the greater the biasing action, the more damage or breakage phenomenon of the ground excavation equipment to excavate a large diameter drilling hole.

On the other hand, in order to excavate a large diameter drilling hole, instead of using a single diameter large diameter and large weight hammer drill as a conventional method, a combination of several small diameter hammer drills is used to excavate a large diameter drilling hole as a multi-hammer. The ground excavation method and apparatus using the organ machine have been filed by the present inventors as patent application No. 95-9037, and the above-mentioned invention also appears when the appearance of the inclined rock layer in the strata.

Therefore, the present invention has been created in order to perform the excavation work without damaging or damaging the ground excavation equipment in view of the above-mentioned conventional problems, in particular, the present invention by combining a plurality of small diameter hammer drill drilling holes In the excavation of a small hammer organ machine and two multi-hammer organ machine installed above and below, the small oga rod installed on the single hammer organ machine is the center of the multi-hammer organ machine and the large oga rod inside it The single hammer drill of the single hammer organ machine is to be drilled in the center, and the multi hammer drill of the multi hammer organ machine is to be drilled around the single hammer drill. When excavating a rock layer that is buried, let the single hammer drill penetrate the rock layer first, and then the multi hammer drill The purpose of this is to drill the rock bed vertically by penetrating the bed, and also to provide the drilling equipment that does not damage or destroy the multi-hammer drill as well as the single hammer drill. In addition, the soil and stone powder generated during the ground excavation work is to be excavated by the pneumatic power output from the two hammer drills and the multi-hammer drill to provide excavation equipment that works well for the soil and stone dust. There is another purpose.

The present invention suspends a single hammer organ machine above the leader vertically installed on the support arm of the crawler driving apparatus to achieve the above object, the bottom of the single hammer organ machine is formed of a multi-layered earth hole in the center Means for suspending a hammer organ machine; A means for assembling a large diameter organo rod having a discharging pipe communicating with a discharging hole in a multi-stage under the multi-hammer organ machine; Means for inserting a small diameter organo rod, which is assembled and connected to the bottom of the single hammer organ machine in multiple stages, into the large diameter organo rod; Means for attaching a multi-hammer drill in which a plurality of small hammer drills are combined to the lower-most oga rod of the multi-hammer organ machine; Means for mounting a single hammer drill attached to the bottom of the oga rod of the single hammer organ machine inside the discharge guide pipe of the multi hammer drill; And means for allowing the single hammer drill to proceed with the excavation work before the multi-hammer drill. The present invention provides a method and apparatus for excavating ground.

Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are front and side configuration diagrams in which a multi-hammer machine and a single hammer-organ machine are combined to illustrate the present invention, and FIG. 3 is a plan view of the multi-hammer organ machine of the present invention, and FIG. Fig. 5 is a front configuration diagram of the multihammer organ machine of the present invention, Fig. 5 is a cross-sectional view taken along line AA of Fig. 4 showing the output of the multihammer organ machine, and Fig. 6 is a side configuration diagram of the single hammer organ machine of the present invention. 7 and 8 are operation state diagrams of the multi-hammer drill and the single hammer drill of the present invention, FIG. 9 is a cross-sectional view taken along line BB of FIG. 7 showing a pneumatic chamber of the multi-hammer drill, and FIG. Figure 11 is a bottom view showing a composite configuration state of a multi-hammer drill and a single hammer drill to be configured, Figure 11 to Figure 13 is a process showing a ground excavation method for explaining a method of excavating the ground with the present invention As a reference numeral 1 denotes a crawler driving device, a support 3 mounted vertically high is attached to the support arm 2 of the crawler driving device 1, and the leader 3 has a backstay ( Back Stay (4) is firmly supported.

A plurality of pulleys are provided on the upper end of the leader 3 to which the wire cables are struck. Each of these pulleys can be suspended as a wire cable by a single hammer organ machine 5 disposed above the leader 3. In addition, it is possible to suspend the multi-hammer organ machine 6 disposed below the reader 3 as a wire cable, and the wire cable can raise or lower the single hammer organ machine and the multi-hammer organ machine respectively. It is configured to be.

The multi-hammer organ machine (6) is composed of two power units (61a, 61b) consisting of a motor and a planetary gear reducer, the output gears (62a, 62b) of the power unit (61a, 61b). ) Rotates in the opposite direction and is configured to rotate the large ring gear 64 mounted on the output unit 63 forward and reverse.

The large diameter organo rod 65 attached to the bottom side of the multi-hammer organ machine 6 and assembled and connected in multiple stages is disposed at the top end thereof, and the large ring gear 64 bottom part is formed. Directly attached as a bolt to the large diameter oga rods 65 are configured to rotate together with the ring gear 64, and is also installed in a double pipe structure inside the large diameter oga rods 65 66 is connected to the discharging guide hole 67 formed in the ring gear 64, and the discharging guide hole 67 is configured to communicate with the discharging hole 63a formed above the output part 63. The earth and sand discharged to (66) were discharged to the discharge hole 63a of the output part 63 as the discharge guide hole 67.

The multi-hammer drill 7 is connected to the organo rod disposed at the lowermost end of the large-diameter organo rod 65 assembled to the bottom of the multi-hammer organ machine 6, and the multi-hammer drill 7 is The flange 711 of the upper connecting tube 71 is connected to the flange 651 formed at the lower end of the lower side of the Oga rod 65 by fastening with a bolt.

The multi-hammer drill (7) is a plurality of small hammer drill (7a) is arranged in a large diameter cylindrical case 72, these small hammer drill (7a) is idle when the multi-hammer drill (7) rotates It is arranged to be excavated while hitting evenly within the radius of the revolution.

In addition, since the multi-hammer drill 7 forms a pneumatic chamber 73 on the upper portion of the cylindrical case 72, the pneumatic inlet hole 7c formed in the head portion 7b of each of the small hammer drills 7a is uniform. The pneumatic pressure supplied to the pneumatic chamber 73 is supplied with a sufficient amount of pneumatic pressure to operate the plurality of small hammer drills 7a mounted on the multi-hammer drill 7.

The pneumatic pressure flowing into the pneumatic chamber 73 is supplied from a large air swivel (8) installed at the bottom of the multi-hammer organ machine (7), the pneumatic supplied from the large air swivel (8) It is supplied to the pneumatic chamber 73 through the space between the large diameter oga rod 65 and the discharging pipe 66 installed therein, and for this purpose, the large diameter oga rod 65 is connected and assembled in multiple stages. ) Should be connected in an airtight state, and a plurality of through holes 652 and 712 are formed in the flange 651 of the lowermost oga rod and the flange 711 of the connector 71. Also, the connector 71 ) And several through holes 713 were formed between the pneumatic chamber 73 and the pneumatic chamber 73.

On the other hand, the pneumatic pipe 653 is installed in the large diameter Oga rod 65 and the discharge pipe 66 therein to be connected to the through-hole 652 to be supplied from the large air swivel 8 Pneumatic pressure may be supplied to the pneumatic chamber 73, and the installation of such a pneumatic pipe 653 provides an advantage of supplying the pneumatic pressure supplied from the large air swivel 8 to the pneumatic chamber 73 without leakage.

A discharging guide tube 74 is installed at the center of the multi-hammer drill 7, and the upper end of the discharging guide tube 74 communicates with the discharging pipe 66 inside the large diameter oga rod 65. , The lower end is open so that the soil and stone powder excavated at the bottom of the soil induction plate 75 can be covered.

In addition, the hitting portions of the plurality of small hammer drills 7a constituting the multi-hammer drill 7, that is, the drill bits 7d, perform hitting operation up and down while protruding to the bottom side of the discharge guide plate 75. I could do it.

On the other hand, a small diameter orga rod 52 is connected and assembled in multiple stages to the output unit 51 of the single hammer organ machine 5 which is placed above the multi-hammer organ machine 6, and the organo rod 52 ) Penetrates the top hole 63a formed at the center of the output portion 63 of the multi-hammer organ machine 6 and the top guide hole 67 of the ring gear 64 to form a large-diameter organga rod 65 inside. It is inserted into the discharging pipe 66, the single hammer drill (9) connected to the lowermost side of the small diameter of the orga rod 52 is located inside the discharging guide pipe 74 of the multi-hammer drill (7) It was configured to work.

Vertical bars (53) are disposed at equal intervals on the outer circumference of the small diameter organo rod (52) and the single hammer drill (9), so that the operation of the soil can proceed smoothly, instead of the vertical bar (53) Screws can also be attached.

In addition, the single hammer organ machine (5) is a power device composed of a motor and a planetary reducer, as in the conventional organ machine, is configured to rotate the output unit 51, the small air swivel above the output unit 51 (54) is attached to the drill bit (9a) of the single hammer drill (9) is configured to strike the operation.

The method and operation state of the excavation work with the present invention as described above will be described.

If the ground is soft, the multi-hammer machine (6) and the single hammer drill (7d) (9a) of the multi-hammer drill (7) and single hammer drill (9) in a horizontal position (see Fig. 8) Even if the hammer organ machine 5 is operated together and lowered at the same descending speed, it is possible to excavate a large-diameter drilling hole without applying a bias pressure to the multi-hammer drill 7, but it is buried in the ground as shown in the example of FIG. When the multi-hammer drill 7 is continuously operated in a state in which only one side of the multi-hammer drill 7 is in contact with the inclined surface of the rock layer R, the multi-hammer drill 7 is biased and the multi- The hammer drill 7 may be damaged or broken.

Therefore, in the case described above, the multi-hammer drill 7 stops the lowering operation and only the single hammer drill 9 proceeds to lower the rock layer (R) (see FIG. 7). Since the diameter of the hammer is very small compared to the multi-hammer drill (7), the occurrence of the bias pressure is also very small, so that the single hammer drill (9) excavates the rock layer (R) vertically as shown in FIG. 12, and thus the single hammer drill (9) When digging deep into the rock layer R, the excavation hole is excavated as the multi-hammer drill 7 while the downward operation of the single hammer drill 9 is stopped.

As described above, when excavating the rock layer (R) with the multi-hammer drill (7) is generated by the inclination angle, but the single hammer drill (9) that is drilled through the rock layer (R) in advance of the multi-hammer drill (7) As the state supporting the center, the biasing action generated in the multi-hammer drill 7 is canceled by the center bearing force of the single hammer drill 9, so the multi-hammer drill 7 overcomes the biasing action and is vertically vertically rock bed. You can penetrate (R).

On the other hand, the soil and stone powder generated during the excavation work as described above is discharged by pneumatic pressure ejected from each drill bit (7d) (9a), the bottom of the multi-hammer drill (7) to the clay induction plate 75 The air pressure ejected from each drill bit is concentrated and discharged into the discharge guide pipe 74 into which the single hammer drill 9 is inserted (see FIG. 7). Soil and stone powder produced during the excavation due to the extremely strong powder output through the discharge guide pipe (74) through the discharge pipe (66) inside the large diameter oga rod (65), the output of the multi-hammer organ machine (6) It is discharged to the clay hole 63a formed in the part 63, and even when only a single hammer drill 9 is operated, each small hammer drill 7a of the multi-hammer drill 7 supplies air pressure and ejects it. Soil work of excavation of soil and stone ground excavated by single hammer drill (9) On the contrary, even when only the multi-hammer drill 7 is operated, the work of the soil is smoothed by ejecting the air pressure from the single hammer drill 9.

In the case where the soil is soft soil and hard soil, or the rock layer is irregular, the multi-drill drill 7 and the single hammer drill 9 first proceed with excavation (see FIGS. 7 and 12). When the drilling drill is carried out by operating the hammer drill 9 together, the single hammer drill 9 supports the center of the multi hammer drill 7, while preventing the biasing force on the multi hammer drill 7. Excavation work can be carried out so that the excavation hole can be excavated vertically.

According to the present invention as described above to install a single hammer organ machine and a multi-hammer machine on the ground excavator leader up and down, and then excavate a large diameter drilling hole by operating a single hammer drill and a multi-hammer drill together In the course of work, when excavating a rock layer inclined to the ground, only the single hammer drill inserted into the center of the multi hammer drill is lowered and a single hammer drill having a small diameter first penetrates the rock layer and the center of the multi hammer drill is vertical. When the multi-hammer drill excavates the inclined rock layer, the deflection by the angle of inclination of the rock layer acts on the multi-hammer drill when the multi-hammer drill excavates the inclined rock layer. The multi-hammer drill was designed to offset the central bearing capacity of the single hammer drilled into the rock bed. There is an effect that can excavate the inclined rock layer straight in the vertical direction, this effect has the advantage that the rock layer can also be excavated vertically when drilling the drilling hole to a depth of several tens of meters or more from the ground Soil and stone powder produced by excavation of single hammer drill and multi hammer drill are combined with pneumatics ejected from a number of small hammer drills and single hammer drills. In the present invention, the excavation hole of the large diameter can be expected to be excavated, so that even if a rock layer appears in the ground layer, the multi-hammer drill and the organo rod, etc., are prevented from being damaged or broken. Excavator can be excavated vertically straight.

Claims (5)

The single hammer organ machine 5 and the multi hammer organ machine 6 are suspended in two stages up and down on one leader 3 which is placed vertically on the support arm 2 of the crawler traveling device 1, The single hammer drill (9) and the multi-hammer drill (7) attached to the lowermost side of each of the organo rods (52) (65), which are connected in multiple stages to the single hammer organo machine and the multi-organo machine, respectively, rotate and blow operations, respectively. While the drilling work proceeds, the single hammer drill in the center of the multi-hammer drill is first lowered to drill a small diameter drill hole, and then the multi-hammer drill is lowered while the single hammer drill is embedded in the small diameter drill hole. A ground excavation method comprising a combination of a multi-hammer machine and a single hammer machine, characterized by digging a large-diameter excavation hole. The single hammer organ machine 5 suspended above one leader 3 vertically installed on the support arm 2 of the crawler traveling device 1, and located below the single hammer organ machine, A multi-hammer organ machine 6 suspended at the lower part of 3); A large diameter organo rod 65 which is assembled and assembled in multiple stages on the lower side of the multi-hammer organ machine 6 and in which a discharge pipe 66 is installed; A large diameter of the organo rod 65 of the single hammer organ machine 5 is assembled and connected in a multi-stage phase through the top hole 63a formed in the output portion 63 of the multi-hammer organ machine 6 A small diameter organo rod 52 inserted into the discharging pipe 66; A multi-hammer drill 7 in which a plurality of small hammer drills 7a are combined and arranged on the lower-most oga rod of the multi-hammer organ machine 6; It is assembled between the bottom of the multi-hammer organ machine (6) and the large diameter oga rod 65 of the upper end, the space between the lower diameter large oga rod 65 and the discharge pipe 66 and the connector (71) A large air swivel 8 for supplying pneumatic pressure to the pneumatic chamber 73 formed in the multi-hammer drill 7 to strike the plurality of small hammer drills 7a simultaneously; And a single hammer drill (9) inserted into the discharging guide tube (74) formed at the center of the multi-hammer drill (7) and attached to the lowermost side organo rod of the single hammer organ machine (5). Geotechnical excavation method of a multi-hammer organ machine and a single hammer organ machine, characterized in that the configuration. The small hammer swivel (54) mounted on the single hammer organ machine (5) is inserted into the discharging guide pipe (74) of the multi hammer drill (7) and rotates. Ground excavation device combined with a multi-hammer organ and a single hammer organ machine, characterized in that configured to be able to operate the blow individually). 3. The air pressure ejected from each drill bit of the plurality of small hammer drills 7a and the single hammer drill 9 constituting the multi-hammer drill 7 is concentrated by the discharge guide pipe 74. It is configured to be discharged to the clay hole (63a) formed in the output portion of the multi-hammer organ machine 6 as a clay pipe 66 through a clay guide pipe that generates soil and stone dust generated during excavation by the action to discharge it Ground excavation device that combines a multi-hammer organ and a single hammer-organ machine. The pneumatic pipe according to claim 2, wherein the pneumatic pipe of the large air swivel 8 can be supplied to the air chamber 73 in the large diameter organo rod 65 assembled into the multi-hammer organ machine 6 in multiple stages. 653) is a ground drilling equipment comprising a multi-hammer organ machine and a single hammer organ machine, characterized in that the building.