KR0171394B1 - Drill bit - Google Patents
Drill bit Download PDFInfo
- Publication number
- KR0171394B1 KR0171394B1 KR1019960004557A KR19960004557A KR0171394B1 KR 0171394 B1 KR0171394 B1 KR 0171394B1 KR 1019960004557 A KR1019960004557 A KR 1019960004557A KR 19960004557 A KR19960004557 A KR 19960004557A KR 0171394 B1 KR0171394 B1 KR 0171394B1
- Authority
- KR
- South Korea
- Prior art keywords
- bit
- tip
- ground
- construction
- screw
- Prior art date
Links
- 238000009412 basement excavation Methods 0.000 claims abstract description 21
- 239000011440 grout Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 10
- 238000005553 drilling Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000009628 steelmaking Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0038—Production methods using an auger, i.e. continuous flight type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
- Piles And Underground Anchors (AREA)
Abstract
본발명은 기반시설구축 및 도시개발 공사등으로 대규모 진행되고 있는 흙막이 공사나 터널축조시 지반의 붕괴를 방지하기 위해 지반을 적정간격으로 천공하고, 이에 철근을 삽입후 그라우팅하는 지반조강공법에 관계되는 것으로 지반을 천공과 동시에 스크류를 빼내면서 그라우팅을 동시에 실시하는 천공스크류의 비트에 선단확대용 비트를 설치하여 천공선단을 확대하므로서 선단부분의 지지력을 높이고 보다 완벽시공을 할 수 있도록 한 지하굴착용 선단 확대비트에 관한 발명이다.The present invention pertains to the ground-based steelmaking method in which the ground is drilled at appropriate intervals to prevent the collapse of the soil during the construction of large-scale earthquake construction or tunnel construction, and grouting after inserting reinforcing bars. Underground excavation end to increase the bearing capacity of the tip and to make more perfect construction by installing the end expansion bit on the bit of the drilling screw that grouts the ground and simultaneously removes the screw while drilling the ground. The invention relates to an expansion bit.
Description
제1도는 본발명의 일부 분해사시도.1 is a partial exploded perspective view of the present invention.
제2도는 선단 확대전의 천공작동 상태도.2 is a view showing the puncture operation before tip expansion.
제3도는 선단 확대시 천공작동 상태도.3 is a state of puncture operation when the tip is enlarged.
제4도는 선단 확대 천공후 그라우팅 상태도.4 is a grouting state after the tip enlargement drilling.
제5도는 제2도의 “가 - 가”선 단면도.FIG. 5 is a cross-sectional view taken along line “ga-ga” of FIG.
제6도는 제3도의 “나 - 나”선 단면도.FIG. 6 is a cross-sectional view taken along line 2 of FIG.
제7도는 천공완료후 철근 삽입상태 단면도.7 is a cross-sectional view of the reinforcement state after completion of drilling.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 스크류날개 2 : 스크류축1: Screw Wing 2: Screw Shaft
3,4 : 그라우트재 배출공 5 : 트위스팅 비트3,4: grout material discharge hole 5: twisting bit
5' : 본체 6 : 호형홈5 ': main body 6: arc groove
7, 7' : 굴착익편 8 : 텅스텐 초경7, 7 ': excavation blade 8: tungsten carbide
9 : 호형비트 10 : 핀9: Arc bit 10: Pin
본발명은 기반시설구축 및 도시재개발 공사등으로 대규모 진행되고 있는 흙막이 공사나 터널축조시 지반의 붕괴를 방지하기 위해 지반을 적정간격으로 천공하고, 이에 철근을 삽입후 그라우팅하는 지반조강공법에 관계되는 것으로 지반을 천공과 동시에 스크류를 빼내면서 그라우팅을 동시에 실시하는 천공스크류의 비트에 선단확대용 비트를 설치하여 천공선단을 확대하므로서 선단부분의 지지력을 높이고 보다 완벽한 시공을 할 수 있도록 한 지하굴착용 선단 확대비트에 관한 것이다.The present invention pertains to the ground-based steelmaking method in which the ground is drilled at appropriate intervals to prevent the collapse of the ground during the construction of large-scale earthquake construction or tunnel construction, and grouting after inserting rebars. Underground excavation end to increase the bearing capacity of the leading end and expand the perforated tip by installing the end expansion bit on the bit of the drilling screw that grouts the ground and simultaneously removes the screw. It relates to an expansion bit.
본출원인은 지반조강 공법에 있어서 지반을 천공과 동시에 스크류를 빼내면서 그라우팅을 실시하는 그라우팅 스크류를 안출하므로서 작업공정을 줄일 수 있도록 한 고안을 안출한 바 있다.The present applicant has devised a design to reduce the work process by drafting the grouting screw that performs grouting while drilling the ground and removing the screw at the same time.
여기서, 본발명은 천공된 굴착공의 선단을 확대하여 선단부분의 지지력을 보다 높이고 완벽한 시공을 할 수 있도록 한데 있는 바. 이하 첨부 도면에 의거 상술하면 다음과 같다.Here, the present invention is to expand the tip of the perforated excavation hole to increase the bearing capacity of the tip portion and to allow perfect construction. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
스크류날개(1)가 부착된 스크류축(2)의 선단에 그라우트재 배출공(3)(4)이 연통되게 트위스팅 비트(5)를 연결설치한 것에 있어서 트위스팅 비트(5)의 본제(5')외면 일단에 호형홈(6)을 요설하고, 이에 굴착익편(7)(7')이 돌설된 선단에 텅스텐초경(8)을 부착시킨 선단확대용 호형비트(9)를 끼워 선단을 핀(10)으로 축설하여서 됨을 특징으로 하는 것이다. 도면중 미설명부호 11은 그라우트재이고, 12는 철근이며, 13은 굴착공이다.The main body of the twisting bit 5 in the installation of the twisting bit 5 so that the grout material discharge hole 3, 4 is connected to the tip of the screw shaft 2 with the screw blade 1 attached thereto ( 5 ') The arc groove 6 is provided at one end of the outer surface, and the tip expansion arc shaped bit 9 having tungsten carbide 8 attached to the tip of the excavation blade 7 and 7' is inserted into the tip. It is characterized in that the pin 10 is arranged to be condensed. In the figure, reference numeral 11 is a grout material, 12 is a rebar, 13 is an excavation hole.
이와같이된 본발명은 트위스팅 비트(5)가 선단에 설치된 스크류축(2)을 회전시키면 선단의 트위스팅 비트(5)가 토사를 굴착하면서 전진하고 이때 발생된 토사는 스크류날개(1)에 의거 밖으로 배출되어 굴착공(13)을 형성하게 되는데, 전기한 바와같이 굴착공(13)을 천공할때에는 첨부도면 제5도에 표시된 화살표 방향으로 스크류축(2)을 회전시켜 비트(5)를 회전시키게 되면 일측기 힌지된 선단확대용 호형비트(9)는 호형홈(6)에 끼워져 결합된 상태로 회전하게 되므로 통상과 같이 원형의 굴착공을 착공하게 된다.In this invention, when the twisting bit 5 rotates the screw shaft 2 installed on the tip, the twisting bit 5 of the tip moves forward while excavating the soil, and the generated soil is based on the screw blade 1 It is discharged out to form an excavation hole (13). As described above, when drilling the excavation hole (13), the screw shaft (2) is rotated in the direction of the arrow shown in FIG. When the one side is hinged to the tip expansion arc shaped bit 9 is inserted into the arc groove (6) is rotated in a coupled state, so that the construction of a circular drilling hole as usual.
굴착공(13)을 천공한 후 굴착공(13)의 선단을 확대할때에는 트위스팅 비트(5)가 굴착공(13)에 위치된 상태에서 트위스팅 비트(5)를 역회전시키면 비트본체(5')에 핀(10)으로 일단이 힌지된 선단확대용 호형비트(9)가 핀(10)을 중심으로 회동하려는 힘을 가지므로 회전력에 의해 열리면서 외면의 굴착익편(7)(7')과 선단의 텅스텐초경(8)이 서서히 토사를 굴착하여 굴착공을 확대시키게 되고, 굴착공이 확대되면서 동시에 호형비트(9)가 더욱 많이 회동되어 열리게 됨에 따라 굴착공이 더욱 확대되는 바, 여기서 최대 확대범위는 호형비트(9)가 비트본체(5')의 외경을 벗어나 열리는 최대 회동거리만큼 굴착공(13)의 선단을 확대하게 된다.When the tip of the excavation hole 13 is enlarged after drilling the excavation hole 13, when the twisting bit 5 is reversely rotated while the twisting bit 5 is located at the excavation hole 13, the bit body ( 5 '), the tip enlargement arc bit 9, the one end of which is hinged by the pin 10, has a force to rotate about the pin 10, and is opened by a rotational force, and thus the excavating blade pieces 7 and 7' of the outer surface. The tungsten carbide 8 at the tip and the end gradually excavate the earth and expand the excavation hole, and the excavation hole is enlarged as the excavation hole is enlarged at the same time as the arc bit 9 is rotated more and more, where the maximum enlargement range is obtained. The arc-shaped bit 9 extends the tip of the excavation hole 13 by the maximum rotational distance opened outside the outer diameter of the bit body 5 '.
이와 같은 작동으로 굴착공(13)의 선단확대가 완료되면 스크류축(2)을 빼내면서 스크퓨축(2) 내부의 그르우트재 배출공(3)으로 그라우트재(11)르 주입시켜 비트(5)의 배출공(4)으로 배출시키면 굴착공(13)내에 그라우트재(11)가 충진되고 충진후 제7도와 같이 철근(12)을 삽입시키게 되면 지반조강 작업이 완료되는 것이다.When the tip expansion of the excavation hole 13 is completed in this manner, the grout material 11 is injected into the grout material discharge hole 3 inside the scew shaft 2 while the screw shaft 2 is pulled out. When discharged into the discharge hole (4) of the grout material 11 is filled in the excavation hole 13 and when the reinforcing bar 12 is inserted as shown in Figure 7 after completion of the ground steel work is completed.
이와같이 본발명은 간단한 구조로서 굴착공(13)의 선단을 확대하므로서 굴착공 선단부의 지지력을 증강시키고 완벽한 시공으로 지반조강을 더욱 견고하게 하는 등의 효과가 있다.In this way, the present invention has an effect of increasing the end of the excavation hole 13 as a simple structure to enhance the bearing capacity of the excavation end portion and to further strengthen the ground rough steel with perfect construction.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960004557A KR0171394B1 (en) | 1996-02-22 | 1996-02-22 | Drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960004557A KR0171394B1 (en) | 1996-02-22 | 1996-02-22 | Drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970062254A KR970062254A (en) | 1997-09-12 |
| KR0171394B1 true KR0171394B1 (en) | 1999-02-18 |
Family
ID=19451748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960004557A KR0171394B1 (en) | 1996-02-22 | 1996-02-22 | Drill bit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0171394B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100728103B1 (en) * | 2006-11-15 | 2007-06-13 | (주) 경화엔지니어링 | Auger for engineering work underground pile and method for constructing underground pile using it |
| KR100802943B1 (en) * | 2006-09-30 | 2008-02-18 | 위성배 | Over cutting head apparatus for auger screw |
| KR20180079749A (en) * | 2017-01-02 | 2018-07-11 | 주식회사 동아지질 | Sampler |
| KR101881406B1 (en) * | 2018-05-14 | 2018-07-24 | 신현진 | Partially expanding type land drill apparatus and slope drilling method using the same |
| KR20220147245A (en) * | 2021-04-27 | 2022-11-03 | 삼성물산 주식회사 | Ground improvement mixing device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000342986A (en) * | 1999-03-30 | 2000-12-12 | Komatsu Ltd | Bit for crushing industrial waste |
| KR20020035082A (en) * | 2002-04-20 | 2002-05-09 | 이정우 | JSP and its device |
| KR20020043475A (en) * | 2002-04-20 | 2002-06-10 | 이정우 | The method of soil improvement and its device |
| CN111707497B (en) * | 2020-08-11 | 2024-03-29 | 李明双 | Rotary integrated soil collecting and reaming device |
-
1996
- 1996-02-22 KR KR1019960004557A patent/KR0171394B1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100802943B1 (en) * | 2006-09-30 | 2008-02-18 | 위성배 | Over cutting head apparatus for auger screw |
| KR100728103B1 (en) * | 2006-11-15 | 2007-06-13 | (주) 경화엔지니어링 | Auger for engineering work underground pile and method for constructing underground pile using it |
| KR20180079749A (en) * | 2017-01-02 | 2018-07-11 | 주식회사 동아지질 | Sampler |
| KR101881406B1 (en) * | 2018-05-14 | 2018-07-24 | 신현진 | Partially expanding type land drill apparatus and slope drilling method using the same |
| KR20220147245A (en) * | 2021-04-27 | 2022-11-03 | 삼성물산 주식회사 | Ground improvement mixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970062254A (en) | 1997-09-12 |
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