KR20220131601A - Drill Rod Holding Units For Drilling Machine - Google Patents

Drill Rod Holding Units For Drilling Machine Download PDF

Info

Publication number
KR20220131601A
KR20220131601A KR1020210036400A KR20210036400A KR20220131601A KR 20220131601 A KR20220131601 A KR 20220131601A KR 1020210036400 A KR1020210036400 A KR 1020210036400A KR 20210036400 A KR20210036400 A KR 20210036400A KR 20220131601 A KR20220131601 A KR 20220131601A
Authority
KR
South Korea
Prior art keywords
drill rod
members
drill
bushing
semi
Prior art date
Application number
KR1020210036400A
Other languages
Korean (ko)
Other versions
KR102527456B1 (en
Inventor
정창식
Original Assignee
정창식
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정창식 filed Critical 정창식
Priority to KR1020210036400A priority Critical patent/KR102527456B1/en
Publication of KR20220131601A publication Critical patent/KR20220131601A/en
Application granted granted Critical
Publication of KR102527456B1 publication Critical patent/KR102527456B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04—Guide devices; Guide frames
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/22—Placing by screwing down
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/06—Dredgers; Soil-shifting machines mechanically-driven with digging screws
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0061—Production methods for working underwater
    • E02D2250/0076—Drilling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The present invention relates to drill rod holding units for a drilling machine. The drill rod holding units comprise: a bushing member (1) for guiding at least one drill rod installed in the drilling machine to prevent eccentric rotation thereof during excavation so that drilled holes are vertically and stably formed, and provided to surround the outer circumferential surface of each drill rod to rotate together with the drill rod; and a holding casing (2) for maintaining bushing members (1) disposed outside the bushing members to surround the drill rods, respectively. The two semi-cylindrical members (11) of the bushing member (1) are disposed on the outer circumferential surface of the drill rod by the holding casing (2) to guide the drill rod so that the same can rotates in a stable state. During excavation, the two semi-cylindrical members guide the drill rod to prevent the radially outward eccentricity of the drill rod rotated by a driving means, thereby preventing the occurrence of problems in which the drilled holes communicate with each other or are not formed at regular intervals during eccentric rotation. The connecting portions (23) of casing members (21) cause regular intervals to be maintained so that the drilled holes formed by the drill rods are also stably formed at regular intervals as designed in advance, so that reinforcements can be effectively constructed using a cement paste or concretion agent injected and cured into the drilled holes, and the wear of the drill rod can be minimized to extend the life of the drill rod.

Description

천공기의 드릴로드 홀딩유닛{Drill Rod Holding Units For Drilling Machine}Drill Rod Holding Units For Drilling Machine

본 발명은 천공기의 드릴로드 홀딩유닛에 관한 것으로, 특히 적어도 하나의 드릴로드를 안정되게 클램핑하여 구동수단에 의해 회전시키도록 가이드하는 가이드부재와, 그 가이드부재의 외측에서 지지하는 지지부재를 포함하여 드릴로드와의 결합분리하여 천공작업을 효율적으로 수행하도록 개선된 구조의 천공기의 드릴로드 홀딩유닛에 관한 것이다.The present invention relates to a drill rod holding unit of a perforator, and more particularly, comprises a guide member for stably clamping at least one drill rod and guiding it to rotate by a driving means, and a support member supporting the guide member from the outside. It relates to a drill rod holding unit of a drilling machine having an improved structure to efficiently perform a drilling operation by separating it from a drill rod.

일반적으로, 철근 콘크리트 구조물이나 그 밖의 건축물 등을 축조하기 위한 터파기 공사용 옹벽을 축조하거나, 연약 지반의 기초를 견고하게 하거나 기 위하여 상기 지반에 파일을 매설하여 기초공사를 실시하고 있다. 이러한 기초공사는 기중기에 리더를 설치하여 드롭헤머, 디젤 헤머, 유압헤머등을 이용하여서 항타에 의한 굴삭방법에 의한 파일시공을 하고 있었으나, 굴삭 파일시공시에는 굴삭부위가 붕괴되는 예가 많아 케이싱(Casing)공법을 이용하여 시멘트페이스트와 파일을 굴삭공에 압입시키어 파일시공을 하기도 한다.In general, a retaining wall for excavation work for constructing a reinforced concrete structure or other buildings, etc., or by burying a pile in the ground in order to strengthen the foundation of a soft ground, is carried out. In this foundation work, a leader was installed in the crane and pile construction was performed by the excavation method by driving using drop hammer, diesel hammer, hydraulic hammer, etc. ) method is used to press-fit cement paste and pile into the excavation hole to perform pile construction.

또한, 하천이나 강의 둑이 물살에 의해 무너지는 것을 방지하기 위한 지반강화의 목적으로 강변을 따라 천공기로 굴착한 굴착공에 시멘트 페이스트나 고결제를 주입하여 양생시킴으로써 일정 간격으로 콘크리트 또는 고결제에 의한 보강 기둥들을 형성하여 강변이나 하천변의 지반을 강화하거나, 옹벽을 축조하는데도 이용된다.In addition, for the purpose of reinforcing the ground to prevent the banks of rivers or rivers from collapsing by the current, cement paste or binder is injected into the excavation holes excavated with a perforator along the riverside for curing, It is also used to strengthen riverside or riverside ground by forming reinforcing columns, or to build retaining walls.

이러한 연약지반 강화 방식의 예가, 한국 등록특허 제10-1698457호(등록일자 2017년01월16일)에 연약지반 강화를 위한 다중말뚝 시공방법이 개시되어 있으며, 상기 시공방법은 그라우트재 배출공이 형성된 강관과 상기 강관의 하단에 회전 가능하게 설치된 링비트(ring bit)로 이루어진 주말뚝에 대하여 드릴로드(drill rod)와 상기 드릴로드 하단에 결합된 파일롯비트(pilot bit)로 이루어진 천공장치를 장착하여 상기 링비트와 함께 상기 파일롯비트를 상기 주말뚝 하단에 위치시키는 단계와; 상기 주말뚝에 상기 천공장치가 장착된 상태에서 상기 드릴로드의 회전을 통해 상기 링비트와 파일롯비트를 회전시키면서 연약지반에 압입시킴으로써 굴착공의 천공과 주말뚝의 관입을 동시에 실시하는 단계와; 상기 주말뚝이 연약지반에 일정 깊이 관입되면 상기 천공장치를 상기 주말뚝으로부터 분리하여 제거하는 단계와; 상기 굴착공에 그라우트재를 주입하는 단계와; 상기 그라우트재를 경화시키는 단계를 포함하여 구성된다.An example of such a method for strengthening the soft ground is disclosed in Korean Patent Registration No. 10-1698457 (registration date January 16, 2017) of a method for constructing multiple piles for reinforcing soft ground, and the construction method includes a grout material discharge hole formed. For a weekend pile made of a steel pipe and a ring bit rotatably installed at the lower end of the steel pipe, a drilling device comprising a drill rod and a pilot bit coupled to the lower end of the drill rod is installed. locating the pilot bit together with the ring bit at the bottom of the weekend pile; simultaneously performing the drilling of the excavation hole and the penetration of the weekend pile by press-fitting the ring bit and the pilot bit into the soft ground while rotating the ring bit and the pilot bit through the rotation of the drill rod while the drilling device is mounted on the weekend pile; separating and removing the drilling device from the weekend piles when the weekend piles penetrate to a certain depth in the soft ground; injecting a grout material into the excavation hole; and curing the grout material.

상기한 지반강화를 위한 굴착공의 시공은, 예를들어 한국 등록특허 제20-0366428호(2004년10월22일)에 개시된 지상에서 자주식으로 이동 및 정지하는 크롤러크레인의 선단에 수직상으로 설치되는 리더와, 이 리더에 승강가능하게 설치되는 오거머신과, 이 오거머신의 하부에 상,하 다단상으로 연결 조립되는 굴착로드와, 이 굴착로드의 최하단측 굴착로드 하단에 해머드릴을 연결하여 지반을 굴착하는 지반굴착장치를 이용하고 있다. The construction of the excavation hole for ground reinforcement is installed vertically at the tip of a crawler crane that moves and stops in a self-propelled manner on the ground, as disclosed in, for example, Korean Patent Registration No. 20-0366428 (October 22, 2004). By connecting a leader, an auger machine installed so as to be able to move up and down on the leader, an excavation rod that is assembled by connecting the upper and lower stages to the lower part of the auger machine, and a hammer drill at the bottom of the excavation rod at the bottom of the excavation rod. A ground excavator is used to excavate the ground.

이러한 지반굴착장치에는 적어도 하나, 예를들어 한국 등록실용신안공보 제1996-0006346호(1996년07월23일)에 개시된 바와 같이 지지동체에 3개의 드릴로드의 선단부가 일정한 간격으로 축 설치되고 지지동체내의 각 드릴로드는 공지된 기어장치로 접속연동되며 지지동체의 양측면에는 안내편을 형성하여서된 굴착기의 드릴로드 지지장치를 이용하여 복수개의 드릴로드로 한반에 여러개의 굴착공을 시공하여 효율적으로 시공하도록 하고 있다.At least one of these ground excavators, for example, as disclosed in Korean Utility Model Publication No. 1996-0006346 (July 23, 1996), the tip of three drill rods is axially installed and supported on the support body at regular intervals. Each drill rod in the body is connected and interlocked with a known gear device, and guide pieces are formed on both sides of the support body. to be built.

그러나, 상기한 종래 기술의 복수개의 드릴로드에 의한 굴착공 시공작업시에 회전하는 드릴로드들에 진동이 발생되고, 이로 인하여 드릴로드를 회전시키는 기어가 내장된 지지동체와의 접촉부에서의 마모에 의해 편심 회전이 발생됨에 따라, 드릴로드를 직선상으로 유지하기 어려운 문제가 있었으며, 이와 같이 드릴로드의 편심 회전에 의해 인접한 굴착공들이 연통되는 경우 지반강화용 기둥들의 강성이 저하되어 목적하는 지지력을 갖추지 못하게 되는 문제가 발생되었다.However, vibration is generated in the drill rods rotating during the excavation construction work by a plurality of drill rods of the prior art, which causes wear at the contact portion with the support body in which the gear for rotating the drill rod is built in. As eccentric rotation is generated by the eccentric rotation, there is a problem in that it is difficult to maintain the drill rod in a straight line. There was a problem that it could not be equipped.

한국 등록특허 제10-1698457호(등록일자 2017년01월16일)Korean Patent Registration No. 10-1698457 (Registration Date January 16, 2017) 한국 등록특허 제20-0366428호(2004년10월22일)Korean Patent Registration No. 20-0366428 (October 22, 2004) 한국 등록실용신안공보 제1996-0006346호(1996년07월23일)Korean Utility Model Publication No. 1996-0006346 (July 23, 1996)

본 발명의 목적은 상기한 종래 기술에서 복수개의 드릴로드들로 굴착공을 시공하는 천공기에 대한 문제점을 해결하기 위하여, 적어도 하나의 드릴로드 외측에서 감싸도록 배치되는 부싱부재와 그 부싱부재 외측에서 부싱부재를 드릴로드 외측에서 유지시키는 홀딩케이스를 포함하여 드릴로드를 수직으로 안정되게 유지하고, 상기 부싱부재와 홀딩케이스의 마모에 의해 유격 발생시 부싱부재를 간편하게 교체할 수 있도록 된 천공기의 드릴로드 홀딩유닛을 제공하는 것이다.An object of the present invention is to solve the problem of the perforator for constructing an excavation hole with a plurality of drill rods in the prior art, at least one bushing member disposed so as to surround the outside of the drill rod and the bushing from the outside of the bushing member A drill rod holding unit of a perforator that maintains the drill rod vertically and stably, including a holding case that holds the member from the outside of the drill rod, and can easily replace the bushing member when a gap occurs due to abrasion of the bushing member and the holding case is to provide

상기한 목적을 달성하기 위하여, 본 발명에 의한 천공기의 드릴로드 홀딩유닛은, 천공기에 설치된 적어도 하나의 드릴로드의 굴착시공시 편심 회전을 방지하기 위해 가이드하여 굴착공들을 수직으로 안정되게 형성하도록 드릴로드 각각의 외주면을 감싸도록 제공되어 드릴로드와 함께 회전하도록 된 부싱부재과, 상기 부싱부재의 외측에서 드릴로드를 각각 감싸도록 배치된 부싱부재들을 유지시키는 홀딩케이싱을 포함하는 것을 특징으로 하여 구성된다.In order to achieve the above object, the drill rod holding unit of the drilling machine according to the present invention guides to prevent eccentric rotation during the excavation of at least one drill rod installed in the drilling machine so as to vertically stably form the drilling holes. It is configured to include a bushing member provided to surround the outer circumferential surface of each rod to rotate together with the drill rod, and a holding casing for holding the bushing members arranged to surround the drill rod from the outside of the bushing member, respectively.

상기 부싱부재는 두개의 반원통형부재로 구성되며, 상기 반원통형부재들 각각은 상단과 하단에는 반경방향 외측으로 확장된 상하측의 플랜지부들이 형성되고, 상기 플랜지부들 각각의 중앙부에는 부싱부재의 직경방향으로 키홈이 형성되어 드릴로드의 외주면에 상하로 이격되어 형성된 돌출부들이 상기 키홈에 맞물려 드릴로드 회전시 함께 부싱부재도 회전하도록 구성된다.The bushing member is composed of two semi-cylindrical members, each of the semi-cylindrical members is formed with upper and lower flange portions extending radially outward at the upper end and lower end of each of the semi-cylindrical members. A key groove is formed in the radial direction so that the protrusions formed vertically spaced apart from the outer circumferential surface of the drill rod are engaged with the key groove to rotate the bushing member together with the rotation of the drill rod.

상기 홀딩케이싱은 각각의 부싱부재의 반원통형부재들을 수용하는 만곡부가 형성되고 상하측의 플랜지부들 하측에서 외측면에 결합되는 두개의 케이싱부재들을 포함한다.The holding casing includes two casing members having a curved portion for accommodating the semi-cylindrical members of each bushing member and coupled to the outer surface at the lower side of the upper and lower flange portions.

상기 홀딩케이싱의 각각의 케이싱부재들은 적어도 두개의 드릴로드의 간격에 대응된 간격으로 드릴로드들의 회전을 가이드하도록 적어도 두개의 부싱부재의 반원통형부재들을 수용하는 만곡부들과, 상기 만곡부들을 잇는 평면의 연결부들로 형성되며, 상기 연결부들에는 회측으로 돌출된 보강리브가 형성될 수 있다.Each of the casing members of the holding casing includes curved portions for accommodating the semi-cylindrical members of the at least two bushing members to guide the rotation of the drill rods at an interval corresponding to the spacing of the at least two drill rods, and a plane connecting the curved portions. It is formed by connecting parts, and the connecting parts may be formed with a reinforcing rib protruding to the lateral side.

본 발명에 따라, 부싱부재(1)의 두개의 반원통형부재(11)들은 홀딩케이싱(2)에 의해 드릴로드의 외주면에 배치되어 안정된 상태로 드릴로드가 회전될 수 있게 가이드함으로써, 굴착시공시 구동수단에 의해 회전되는 드릴로드의 반경방향 외측으로의 편심을 방지하도록 가이드하여 편심 회전시 굴착공들이 서로 연통되거나 일정한 간격으로 되지 않는 문제 발생을 방지하며, 케이싱부재(21)들의 연결부(23)들에 의해 일정 간격이 유지되어 드릴로드에 의한 굴착공들 또한 미리 설계된 바와 같이 일정 간격으로 안정되게 형성되므로 굴착공에 주입, 양생되는 시멘트페이스트나 고결제에 의한 보강기들들의 시공을 효과적으로 수행할 수 있는 효과가 있고, 드릴로드의 마모를 최소화하여 드릴로드의 수명을 연장하는 효과가 있다. According to the present invention, the two semi-cylindrical members 11 of the bushing member 1 are arranged on the outer circumferential surface of the drill rod by the holding casing 2 to guide the drill rod to be rotated in a stable state. It guides to prevent eccentricity outward in the radial direction of the drill rod rotated by the driving means to prevent the problem that the drilling holes do not communicate with each other or are not at regular intervals during eccentric rotation, and the connection part 23 of the casing members 21 Since the holes are maintained at regular intervals by the drill rods and the drill rods are also stably formed at regular intervals as designed in advance, it is possible to effectively perform the construction of reinforcements by cement paste or curing agent injected and cured in the drilling holes. There is an effect of extending the life of the drill rod by minimizing the wear of the drill rod.

도 1은 본 발명의 천공기의 드릴로드 홀딩유닛의 개략적인 사시도.
도 2는 도 1의 홀딩유닛의 분해사시도.
도 3은 도 2의 홀딩부재의 분리된 사시도.
도 4는 도 1의 홀딩유닛을 3개의 드릴로드에 적용한 사용상태도.
도 5는 도 1의 홀딩유닛을 드릴로드에 적용한 상태의 홀딩유닛 상단부의 개략적인 횡단면도.
도 6은 도 1의 홀딩유닛을 드릴로드에 적용한 상태의 홀딩유닛 중간부의 개략적인 횡단면도.
1 is a schematic perspective view of a drill rod holding unit of the perforator of the present invention.
Figure 2 is an exploded perspective view of the holding unit of Figure 1;
Figure 3 is an exploded perspective view of the holding member of Figure 2;
Figure 4 is a state diagram in which the holding unit of Figure 1 is applied to three drill rods.
5 is a schematic cross-sectional view of the upper end of the holding unit in a state in which the holding unit of FIG. 1 is applied to the drill rod.
6 is a schematic cross-sectional view of the middle part of the holding unit in a state in which the holding unit of FIG. 1 is applied to the drill rod.

이하에서는 본 발명에 의한 천공기의 드릴로드 홀딩유닛의 실시예를 도시한 첨부 도면을 참고하여 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing an embodiment of the drill rod holding unit of the perforator according to the present invention.

도 1 내지 3에 있어서, 본 발명에 의한 천공기의 드릴로드 홀딩유닛은 도면에 미도시된 천공기에 설치된 적어도 하나, 도시된 실시예에서는 3개의 드릴로드들 각각의 외주면을 감싸도록 제공되는 부싱부재(1)들과, 상기 부싱부재 외측에서 상기 드릴로드를 각각 감싸도록 배치된 부싱부재(1)들을 유지시키는 홀딩케이싱(2)을 포함하여 드릴로드의 굴착작업시 직진성이 유지되게 가이드한다.1 to 3, the drill rod holding unit of the perforator according to the present invention is at least one installed in the perforator not shown in the drawings, in the illustrated embodiment, a bushing member provided to surround the outer peripheral surface of each of the three drill rods ( 1) and a holding casing (2) for holding the bushing members (1) arranged to surround the drill rod from the outside of the bushing member, respectively, to guide the straightness of the drill rod to be maintained during the excavation operation.

드릴로드는 길게는 30m에 달하기 때문에 일직선으로 수직으로 유지되지 않으면 하단부가 편심회전하게 되어 굴착공이 측방으로 형성되어 인접하여 굴착되는 굴착공과의 간격이 일정하게 유지되지 못하게 될 수 있게 되거 심한 경우 굴착공들이 서로 통하게 되므로 시멘트페이스트 또는 고결제 주입시 누출되어 지반강화 목적의 말뚝을 형성할 수 없게 되는 문제가 발생된다. Since the drill rod is up to 30m long, if it is not maintained vertically in a straight line, the lower end rotates eccentrically, and the drilling hole is formed laterally, and the distance from the adjacent drilling hole cannot be maintained at a constant level. Since the balls pass through each other, there is a problem in that when cement paste or binder is injected, it leaks and it is impossible to form a pile for the purpose of reinforcing the ground.

이러한 문제 발생을 방지하기 위하여 상기 부싱부재(1)는 구동수단이 드릴로드를 회전시켜 굴착공을 시공할 때, 드릴로드 상부 외주면에 배치된 부싱부재(1)를 홀딩케이싱(2)이 드릴로드에 대하여 유지시켜 가이드함으로써 드릴로드의 편심 회전을 방지하게 된다. In order to prevent such a problem from occurring, the bushing member 1 holds the bushing member 1 disposed on the upper outer peripheral surface of the drill rod when the driving means rotates the drill rod to construct an excavation hole. The eccentric rotation of the drill rod is prevented by maintaining and guiding the drill rod.

상기 부싱부재(1)는 도 3에 도시된 바와 같이 두개의 반원통형부재(11)로 구성되며, 상기 반원통형부재(11)들 각각은 상단과 하단에는 반경방향 외측으로 확장된 상하측의 플랜지부(12)들이 형성되고, 상기 플랜지부(12)들 각각의 중앙부에는 부싱부재의 직경방향으로 키홈(13)이 형성되어 있다. The bushing member 1 is composed of two semi-cylindrical members 11 as shown in FIG. 3, and each of the semi-cylindrical members 11 has upper and lower planes extending radially outwardly at the upper end and lower end. The branch portions 12 are formed, and a key groove 13 is formed in the central portion of each of the flange portions 12 in the radial direction of the bushing member.

드릴로드의 외주면에 일정간격으로 상하로 이격되어 형성된 돌출부들이 상기 반원통형부재(11)의 상하측 플랜지부(12)에 형성된 키홈(13)들에 삽입된 상태에서 드릴로드가 회전하면서 굴착할 때 드릴로드 외주면에 배치된 반원통부재(11)들로 된 부싱부재(1)도 함께 회전하면서 드릴로드와 같이 하강하게 된다. 도면에는 도시되어 있지 않지만 상기 홀딩케이싱(2)은 천공기의 가이드레일에 브라켓으로 연결되어 드릴로드의 승하강시 함께 상하이동하게 된다. When the drill rod rotates while excavating while the protrusions formed vertically spaced apart from the outer circumferential surface of the drill rod are inserted into the key grooves 13 formed in the upper and lower flange portions 12 of the semi-cylindrical member 11 The bushing member 1 made of the semi-cylindrical members 11 disposed on the outer peripheral surface of the drill rod also rotates and descends like the drill rod. Although not shown in the drawings, the holding casing 2 is connected to the guide rail of the drilling machine by a bracket and moves vertically when the drill rod is raised and lowered.

상기 홀딩케이싱(2)은 각각의 부싱부재의 반원통형부재(11)들의 양측에서 상하측의 플랜지부(12)들 하측에서 외측면에 결합되는 두개의 케이싱부재(21)들을 포함하며, 상기 각각의 케이싱부재(21)들은 드릴로드의 간격에 대응된 간격으로 반원형태로 반원통형부재(11)를 수용하는 만곡부(22)들과 그 만곡부들을 잇는 평면의 연결부(23)들로 형성되며, 상기 연결부(23)들에는 회측으로 돌출된 보강리브(24)가 형성되어 있다. 상기 반원통형부재(11)들은 양측의 케이싱부재(21)의 만곡부(22)에서 안정되게 유지되어 회전할 수 있게 된다.The holding casing (2) includes two casing members (21) coupled to the outer surface at the lower side of the upper and lower flange portions (12) on both sides of the semi-cylindrical members (11) of each bushing member, each of the The casing members 21 are formed of curved portions 22 accommodating the semi-cylindrical member 11 in a semi-circular shape at intervals corresponding to the spacing of the drill rods and the flat connecting portions 23 connecting the curved portions, wherein the Reinforcing ribs 24 protruding to the lateral side are formed in the connecting portions 23 . The semi-cylindrical members 11 are stably maintained at the curved portions 22 of the casing members 21 on both sides to be able to rotate.

상기 케이싱부재(21)들의 양측 단부에도 평면의 연결부(24)가 형성되어 있으며, 상기 부싱부재의 반원통형부재(11)의 양측에서 대향되게 두개의 케이싱부재(21)들이 배치된 상태에서 볼트(25)들로 연결부(23)들에 형성된 체결공을 통해 결합되어 부싱부재의 반원통형부재(11)들을 드릴로드 양측에서 회전가능하게 유지한다. A planar connection part 24 is also formed at both ends of the casing member 21, and the two casing members 21 are disposed opposite to each other from both sides of the semi-cylindrical member 11 of the bushing member. 25) is coupled through a fastening hole formed in the connecting portions 23 to maintain the semi-cylindrical members 11 of the bushing member rotatably on both sides of the drill rod.

본 발명에 의한 천공기의 드릴로드 홀딩유닛은 도 4 내지 6에 도시된 바와 같이 천공기에 장착된 3개의 드릴로드(20)들을 가이드하도록 장착되며, 이때 각각의 부싱부재(1)가 각각의 드릴로드 상부 외주면에 배치된 상태로 홀딩케이싱(2)에 의해 안정되게 유지되고, 굴착시공에 따라 드릴로드(2)와 함께 회전하는 부싱부재(1)의 반원통형부재(11)들과 홀딩케이싱(2) 마찰로 마모되는 경우에는 드릴로드와의 유격이 증가될 수 있게 되어 편심이 발생될 수 있으므로, 이를 방지하도록 반원통형부재들과 필요에 따라 홀딩케이싱을 교체함으로써, 드릴로드를 수직으로 안정되게 유지 및 관리할 수 있음과 함께, 드릴로드(2)와 홀딩케이싱과 직접 접촉하는 경우 고가의 드릴로드가 마모되어 수명이 단축되는 것을 지연할 수 있게 되므로, 드릴로드의 사용기간이 증대된다. The drill rod holding unit of the perforator according to the present invention is mounted to guide the three drill rods 20 mounted on the perforator as shown in FIGS. 4 to 6 , wherein each bushing member 1 is each drill rod The semi-cylindrical members 11 and the holding casing 2 of the bushing member 1 that are stably maintained by the holding casing 2 in a state disposed on the upper outer circumferential surface, and rotate together with the drill rod 2 according to the excavation construction. ) In case of wear due to friction, the clearance between the drill rod and the drill rod can be increased and eccentricity can occur. and controllable, and since it is possible to delay the shortening of the life of the expensive drill rod due to wear when in direct contact with the drill rod 2 and the holding casing, the service life of the drill rod is increased.

이와 같이 부싱부재(1)의 두개의 반원통형부재(11)들은 홀딩케이싱(2)에 의해 드릴로드의 외주면에 배치되어 안정된 상태로 회전될 수 있게 유지됨으로써, 도면에 미도시된 구동수단에 의해 드릴로드가 회전될 때 반경방향 외측으로의 편심을 방지하도록 가이드하고 케이싱부재(21)들의 연결부(23)들에 의해 일정 간격이 유지되어 드릴로드에 의한 굴착공들 또한 미리 설계된 바와 같이 일정 간격으로 안정되게 형성되므로 굴착공에 주입, 양생되는 시멘트페이스트나 고결제에 의한 보강기들들의 시공을 효과적으로 수행할 수 있게 된다. As described above, the two semi-cylindrical members 11 of the bushing member 1 are arranged on the outer peripheral surface of the drill rod by the holding casing 2 and maintained to be rotated in a stable state, so that by a driving means not shown in the drawing When the drill rod is rotated, it guides to prevent eccentricity outward in the radial direction, and a predetermined interval is maintained by the connection parts 23 of the casing members 21, so that the drilling holes by the drill rod are also provided at predetermined intervals as designed in advance. Since it is formed stably, it is possible to effectively perform the construction of reinforcing devices by cement paste or curing agent injected and cured in the excavation hole.

본 발명에 의한 천공기의 드릴로드 홀딩유닛은 홀딩케이싱과 부싱부재의 분해조립이 간편하여 드릴로드에의 결합과 분해를 간편하게 수행할 수 있으므로 홀딩유닛의 교체 작업에 따른 작업 지연을 최소화할 수 있어 효율적이다.The drill rod holding unit of the drilling machine according to the present invention is easy to disassemble and assemble the holding casing and the bushing member, so that the coupling and disassembly of the drill rod can be performed easily, so it is possible to minimize the operation delay due to the replacement operation of the holding unit, so it is efficient to be.

본 발명은 천공기의 드릴로드에 의해 굴착공 시공시 드릴로드의 회전을 가이드하여 편심 회전을 방지하여 굴착시공을 효율적으로 수행하도록 이용될 수 있다.The present invention can be used to efficiently perform excavation construction by guiding the rotation of the drill rod during construction of an excavation hole by a drill rod of a perforator to prevent eccentric rotation.

1 : 부싱부재 2 : 홀딩케이싱
11 : 반원통형부재 12 : 플랜지부
13 : 키홈 20 : 드릴로드
21 : 케이싱부재 22 : 만곡부
23 : 연결부 1: bushing member 2: holding casing
11: semi-cylindrical member 12: flange portion
13: keyway 20: drill rod
21: casing member 22: curved part
23: connection

Claims (4)

천공기의 드릴로드 홀딩유닛에 있어서,
천공기에 설치된 적어도 하나의 드릴로드의 굴착시공시 편심 회전을 방지하기 위해 가이드하여 굴착공들을 수직으로 안정되게 형성하도록 드릴로드 각각의 외주면을 감싸도록 제공되어 드릴로드와 함께 회전하도록 된 부싱부재(1)과,
상기 부싱부재의 외측에서 드릴로드를 각각 감싸도록 배치된 부싱부재(1)들을 유지시키는 홀딩케이싱(2)을 포함하는 것을 특징으로 하는 천공기의 드릴로드 홀딩유닛.
In the drill rod holding unit of the perforator,
A bushing member (1) provided to surround the outer circumferential surface of each drill rod so as to guide and stably form the drilling holes vertically by guiding to prevent eccentric rotation during the excavation of at least one drill rod installed in the drilling machine to rotate together with the drill rod )class,
Drill rod holding unit of a drilling machine, characterized in that it comprises a holding casing (2) for holding the bushing members (1) arranged to surround the drill rod, respectively, from the outside of the bushing member.
 제 1항에 있어서,
상기 부싱부재(1)는 두개의 반원통형부재(11)로 구성되며, 상기 반원통형부재(11)들 각각은 상단과 하단에는 반경방향 외측으로 확장된 상하측의 플랜지부(12)들이 형성되고, 상기 플랜지부(12)들 각각의 중앙부에는 부싱부재의 직경방향으로 키홈(13)이 형성되어 드릴로드의 외주면에 상하로 이격되어 형성된 돌출부들이 상기 키홈(13)에 맞물려 드릴로드 회전시 함께 부싱부재(1)도 회전하도록 된 것을 특징으로 하는 천공기의 드릴로드 홀딩유닛.
The method of claim 1,
The bushing member 1 is composed of two semi-cylindrical members 11, and each of the semi-cylindrical members 11 is formed with upper and lower flange portions 12 extending radially outward at the upper end and lower end of each of the semi-cylindrical members 11, , A key groove 13 is formed in the central portion of each of the flange portions 12 in the radial direction of the bushing member, and the protrusions formed vertically spaced apart from the outer circumferential surface of the drill rod are engaged with the key groove 13 and the bushing together when the drill rod is rotated. The drill rod holding unit of the perforator, characterized in that the member (1) is also rotated.
 제 1항 또는 2항에 있어서,
상기 홀딩케이싱(2)은 각각의 부싱부재의 반원통형부재(11)들을 수용하는 만곡부(22)가 형성되고 상하측의 플랜지부(12)들 하측에서 외측면에 결합되는 두개의 케이싱부재(21)들을 포함하는 것을 특징으로 하는 천공기의 드릴로드 홀딩유닛.
According to claim 1 or 2,
The holding casing 2 is formed with a curved portion 22 for accommodating the semi-cylindrical members 11 of each bushing member, and two casing members 21 coupled to the outer surface from the lower side of the upper and lower flange portions 12 . ) Drill rod holding unit of the perforator, characterized in that it comprises a.
 제 1항 또는 제 2항에 있어서,
상기 홀딩케이싱(2)의 각각의 케이싱부재(21)들은 적어도 두개의 드릴로드의 간격에 대응된 간격으로 드릴로드들의 회전을 가이드하도록 적어도 두개의 부싱부재의 반원통형부재(11)들을 수용하는 만곡부(22)들과, 상기 만곡부(22)들을 잇는 평면의 연결부(23)들로 형성되며, 상기 연결부(23)들에는 회측으로 돌출된 보강리브(24)가 형성된 것을 특징으로 하는 천공기의 드릴로드 홀딩유닛.

3. The method of claim 1 or 2,
Each of the casing members 21 of the holding casing 2 is a curved portion accommodating the semi-cylindrical members 11 of the at least two bushing members to guide the rotation of the drill rods at an interval corresponding to the spacing of the at least two drill rods. A drill rod of a perforator, characterized in that formed with the connecting portions 23 of the plane connecting the 22 and the curved portions 22, and the connecting portions 23 are formed with a reinforcing rib 24 protruding to the circumferential side. holding unit.
KR1020210036400A 2021-03-22 2021-03-22 Drill Rod Holding Units For Drilling Machine KR102527456B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020210036400A KR102527456B1 (en) 2021-03-22 2021-03-22 Drill Rod Holding Units For Drilling Machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020210036400A KR102527456B1 (en) 2021-03-22 2021-03-22 Drill Rod Holding Units For Drilling Machine

Publications (2)

Publication Number Publication Date
KR20220131601A true KR20220131601A (en) 2022-09-29
KR102527456B1 KR102527456B1 (en) 2023-05-02

Family

ID=83461900

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020210036400A KR102527456B1 (en) 2021-03-22 2021-03-22 Drill Rod Holding Units For Drilling Machine

Country Status (1)

Country Link
KR (1) KR102527456B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960006346A (en) 1994-07-30 1996-02-23 프레데릭 얀 스미트 Device that communicates with the subscriber
KR200366428Y1 (en) 2004-08-21 2004-11-04 김영환 Hammering device for underground Mixing Method
KR101636357B1 (en) * 2014-11-14 2016-07-08 형제기초건설 (주) Connected band of excavating rod of ground excavating device used in SCW method
KR101698457B1 (en) 2016-06-29 2017-01-23 주식회사 보강테크 Multi pile construction method for strengthening weak soil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960006346A (en) 1994-07-30 1996-02-23 프레데릭 얀 스미트 Device that communicates with the subscriber
KR200366428Y1 (en) 2004-08-21 2004-11-04 김영환 Hammering device for underground Mixing Method
KR101636357B1 (en) * 2014-11-14 2016-07-08 형제기초건설 (주) Connected band of excavating rod of ground excavating device used in SCW method
KR101698457B1 (en) 2016-06-29 2017-01-23 주식회사 보강테크 Multi pile construction method for strengthening weak soil

Also Published As

Publication number Publication date
KR102527456B1 (en) 2023-05-02

Similar Documents

Publication Publication Date Title
KR102070735B1 (en) A Bearing and Guide Beam to continuous bore for hole of a strip wall pile, and earth retaining wall and coffering method constructed by its
JP2008057184A (en) Method of constructing underground wall by using h-shaped pc pile
KR102097919B1 (en) Melioration wall and replacement wall mixed retaining wall construction method
KR20080027481A (en) Ground boring method using multi-point rock boring
KR101021915B1 (en) A method for constructing cut-off temporary structure for sheathing work
KR20100065521A (en) A shoring method using arch plate pile and h-pile
JP2017166294A (en) Underground structure construction method
KR20210110958A (en) Construction method of circular vertical wall by polygon overlapping column Pile and circular vertical wall
KR20220131601A (en) Drill Rod Holding Units For Drilling Machine
KR102267641B1 (en) PHC pile construction method using joint PHC pile and detachable auxiliary pile
JP6729902B1 (en) Construction method of soil cement continuous wall
KR102325623B1 (en) Construction method of retaining wall
KR101756933B1 (en) The pile foundation construction method that can build bulb of various type
KR102122698B1 (en) Construction method of underground continuous walls for minimizing ground displacements during deep and vertical excavation in urban areas
KR102259961B1 (en) Pile reinforcement guide device and its construction method
KR102043708B1 (en) Underground structure wall earth excavation apparatus and construction method of using thereof
KR102073630B1 (en) Sacrificial Steel Pipe Cutting Method Using Sacrificial Steel Pipe for Field Drilled Shaft and Construction Method for Stiffness Increase on the Pile
KR20130002797A (en) Reinforced concrete pile construction method for which steel pipe casing structure for steel pipe casing recovery this were used
KR100601399B1 (en) Messer shield excavator apparatus with separated messer plate and excavation method using the same
JP4243069B2 (en) Construction method of earth retaining wall
JP2020186618A (en) Wall-shaped structure and method for constructing wall-shaped structure
KR100669527B1 (en) Construction apparatus of a rataining well
KR100592041B1 (en) Press-fitting Apparatus Stitcher for Casing for Constructing Foundation Pile on Soft Soil Ground and Pile Construction MethodAugeo Pile Method Using the Same
KR102410111B1 (en) An Apparatus For Inserting Large Diameter Steel Pipe Casing
KR102103831B1 (en) Construction method of underground structures using auger apparatus with guide bit

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant