KR101021562B1 - a piercing auger and mixing method for soft ground at use of it's - Google Patents

a piercing auger and mixing method for soft ground at use of it's Download PDF

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KR101021562B1
KR101021562B1 KR1020070122062A KR20070122062A KR101021562B1 KR 101021562 B1 KR101021562 B1 KR 101021562B1 KR 1020070122062 A KR1020070122062 A KR 1020070122062A KR 20070122062 A KR20070122062 A KR 20070122062A KR 101021562 B1 KR101021562 B1 KR 101021562B1
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auger
cone bit
ground
drilling
cone
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KR20090055240A (en
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정명준
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정명준
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00Rotary drilling
    • E21B3/02Surface drives for rotary drilling
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00Geometrical or physical properties
    • E02D2200/16Shapes
    • E02D2200/1671Shapes helical or spiral
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/003Injection of material
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0038Production methods using an auger, i.e. continuous flight type

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

본 발명은 원지반토를 굴착하지 않고 지반 내에 시멘트 및 고화재를 슬러리 상태로 주입, 개량체를 형성하는 지반 혼합처리 과정에서 사력층 관입 및 선단부 암반층의 근입시 콘 비트가 부착된 천공오거를 사용하여 천공 및 혼합이 동시에 가능한 콘 비트가 부착된 천공오거 및 그를 이용한 지반혼합 처리방법에 관한 것으로 혼합교반 날개가 고정된 롯드의 하단에 롯드 연결박스에 의해 천공오거를 결합한 것에 있어서, 천공오거에는 오거 교란날개와 천공오거 날 및 다수의 개량재 배출구가 구성되며, 천공오거 날은 일정각도를 갖는 나선형으로 구성되며, 콘 비트는 콘 비트 케이스 및 콘 비트 채움클립으로 착탈 자재토록 구성되며, 하단부에는 다수의 선단 콘 비트가 연결핀으로 설치되어 있는 것을 특징으로 하는 콘 비트가 부착된 천공오거장치와 이를 이용한 지반혼합처리방법을 제공하는 것이다.The present invention uses a perforated auger with a cone bit attached to the sand layer during penetration and intrusion of the rock bed layer in the ground mixing process of injecting cement and solidified materials into the slurry in the form of slurry without forming excavated soil and forming improved bodies. The present invention relates to a drilling auger with a cone bit capable of drilling and mixing at the same time, and a ground mixing processing method using the same, wherein the auger is disturbed in the drilling auger by combining a drilling auger with a rod connection box at the bottom of the rod where the mixing stir blade is fixed. Consists of wings, perforated auger blades and a number of improved material outlets, perforated auger blades are composed of a spiral with a certain angle, and the cone bit is configured to be detachable with a cone bit case and a cone bit filling clip, And a drill bit attachment device with a cone bit, characterized in that the tip cone bit is installed as a connecting pin. The ground to provide a blending method.

콘 비트, 천공오거, 지반혼합, 연약지반 Corn beet, perforated auger, ground mix, soft ground

Description

콘 비트가 부착된 천공 오거 및 그를 이용한 지반혼합 처리방법{a piercing auger and mixing method for soft ground at use of it's}Perforated auger with cone bit and ground mixing treatment method using the same {a piercing auger and mixing method for soft ground at use of it's}

본 발명은 콘 비트가 부착된 천공 오거 및 그를 이용한 지반혼합 처리방법에 관한 것으로, 보다 상세하게는 원지반토를 굴착하지 않고 지반 내에 시멘트 및 고화재를 슬러리 상태로 주입, 개량체를 형성하는 지반혼합 처리과정에서 사력층(토사층, 자갈층, 사석층 등)의 관입 및 선단부 암반층(풍화암층)의 근입시 콘 비트가 부착된 천공 오거를 사용하여 천공 및 혼합이 동시에 가능하도록 한 천공오거 및 그를 이용한 지반혼합 처리방법에 관한 것이다. The present invention relates to a perforated auger with a cone bit and a ground mixing treatment method using the same, and more particularly, ground mixing for injecting cement and solidified materials into a slurry in a ground state without forming excavated ground soil and forming improved bodies. Perforated auger and ground mixture using the perforated auger with cone cone attached at the time of penetration of sand layer (soil layer, gravel layer, sandstone layer, etc.) and the incidence of tip rock bed (weathered rock layer) It relates to a treatment method.

또한, 항만 구조물의 보수, 보강시 해성점토에 불규칙적으로 혼입되어 있는 사력층을 천공하고서 선단부 암반층까지 지반혼합 처리를 실시하여 보다 견고한 개량체 형성이 가능하도록 한 천공오거 및 그를 이용한 지반혼합 처리방법에 관한 것이다.In addition, the perforated auger and the ground mixing treatment method using the same to perforate the sand layer irregularly mixed in the marine clay during the repair and reinforcement of the port structure, and to carry out the ground mixing treatment to the tip rock bed layer to form a more robust improved body It is about.

일반적으로 항만 구조물의 보수, 보강시 해성점토에 불규칙적으로 혼입되어 있는 사력층을 천공하기 위한 오거 비트는 나선형 형태로 2~4개의 소규모로 고정되어 있어서 작업시간이 지날수록 비트가 마모되어 굴착효율이 떨어진다.In general, auger bits for drilling the sand layer irregularly mixed in marine clay during repair and reinforcement of port structures are fixed in 2-4 small pieces in a spiral form. Falls.

또한, 상기한 종래의 오거 비트를 사용하는 대상 토질은 토사 및 연약지반에 국한되며, 사력층이 존재하는 항만 지반개량공사, 지중 암반층까지의 차수벽체 설치공사 등 작업현장에서는 별도의 천공장비와 방법이 사용되어야 하며, 이들은 관입 속도가 낮아지거나, 천공시 주변지반이 교란되어 지반강도 저하현상이 발생할 수 있어 지반의 지지력을 감소시키고, 재료와 시간의 손실이 크다.In addition, the target soil using the conventional auger bit is limited to soil and soft ground, and additional drilling equipment and methods at work sites such as harbor ground renovation work in which a history layer exists and installation of water barrier walls to underground rock layers. They should be used, and they can lower the penetration rate or perturb the surrounding ground during drilling to reduce ground strength, reducing the bearing capacity of the ground, and loss of material and time.

대한민국 공고실용신안공보 제20-0205638호(2000. 12. 01. 공고)에는 지하천공기의 하부에 배치되는 해머를 소구경으로 분리된 다수개의 해머로 형성하여 압력공기가 공급되는 수단과, 상기 해머 끝단에 부착된 비트로 지표면을 긁어주는 수단과, 상기 해머의 중앙에 시멘트 몰탈이 공급되는 반달패킹이 부착된 지하천공기에 관한 기술이 기재되어 있다.Republic of Korea Utility Model Publication No. 20-0205638 (announced on Dec. 1, 2000) is a means for supplying the pressure air by forming a plurality of hammers separated by a small diameter of the hammer disposed in the lower part of the underground drilling machine, and the hammer Techniques for scraping the ground surface with bits attached to the ends and for underground drills with a half moon packing in which cement mortar is supplied to the center of the hammer are described.

그러나, 상기한 지하천공기는 흙을 배토시키는 공사에 적용되며, 지표면을 긁어주는 수단으로 사용되지만 해머의 중앙에 비트가 한 개소만 설치되어 있어 오거의 배출구가 막힘 현상이 발생하고, 비트가 쉽게 마모되어 자주 비트를 바꾸어야 하기 때문에 작업효율이 저하되는 문제가 있다.However, the above-mentioned underground perforator is applied to the construction work to dispose of the soil, it is used as a means of scraping the ground surface, but only one bit is installed in the center of the hammer, the auger's discharge port is clogged, and the bit is easily worn Since the bits must be changed frequently, the work efficiency is lowered.

본 발명은 상기한 바와 같이 종래 기술이 지니는 문제를 해결하기 위하여 이루어진 것으로서, 대상 지층의 연경질 상태에 따라 콘 비트가 오거 선단부분, 천공오거날, 오거 교란날개에 다수의 개수로 배치되고, 그 각도는 연직방향에 대해 10°∼45°각도를 형성하며, 소모된 후 재부착될 수 있는 장점을 갖는 천공오거 장치를 제공하기 위한 것이다.The present invention has been made to solve the problems of the prior art as described above, according to the soft hard state of the target layer, the cone bit is arranged in a plurality of auger tip portion, perforated auger, auger disturbance wings, The angle forms an angle of 10 ° to 45 ° with respect to the vertical direction and is intended to provide a drilling auger device having the advantage of being reattached after being consumed.

또한, 본 발명은 상기한 콘 비트를 부착한 천공오거 장치 기술을 사용하여 사력층에 대해 천공 및 혼합을 동시에 행할 수 있으므로 지반천공성 및 개량체 착저성을 높일 수 있는 지반혼합 처리방법을 제공하기 위한 것이다. In addition, the present invention can be carried out by the punching auger device technology with a cone bit attached to the sand layer at the same time to provide a ground mixing treatment method that can improve the ground perforation and improved body complexability will be.

또한, 본 발명은 콘 비트가 부착된 천공오거를 이용함으로써 흙을 배토시키지 않고 단일 공정으로 천공혼합하기 위한 장치와 방법을 제공하기 위한 것이다.The present invention also provides an apparatus and method for punching mixing in a single process without discharging soil by using a drill auger with a cone bit attached thereto.

본 발명은 상기한 목적을 달성하기 위한 것으로 첨부 도면에 따라 상세히 설명하면 다음과 같다.The present invention to achieve the above object is described in detail according to the accompanying drawings as follows.

도 1은 콘 비트가 부착된 천공오거의 사시도 및 평면도이고, 도 2는 콘 비트의 상세도, 도 3은 지반혼합처리 상세도이며, 도 4는 콘 비트가 부착된 천공오거 사용상태의 단면도이다.1 is a perspective view and a plan view of a drill auger with a cone bit, FIG. 2 is a detailed view of a cone bit, FIG. 3 is a detailed view of a ground mixing process, and FIG. 4 is a cross-sectional view of a drill auger using a cone bit. .

본 발명은 다수의 혼합교반 날개(1)가 고정된 롯드(2)의 하단에 롯드 연결박스(3)에 의해 천공오거(10)를 결합한 것에 있어서, 천공오거(10)에는 오거 교란날개(4)와 천공오거 날(5) 및 다수의 개량재 배출구(6)가 구성되며, 천공오거 날(5)은 일정각도를 갖는 나선형으로 구성되며, 콘 비트(8)는 콘 비트 케이스(7) 및 콘 비트 채움클립(15)으로 착탈 자재토록 구성되며, 하단부에는 다수의 선단 콘 비트(9)가 연결핀(11)으로 설치되어 있다. The present invention is a combination of the drilling auger 10 by the rod connecting box 3 to the lower end of the rod 2 is fixed a plurality of mixing stir blades 1, the auger disturbing wings (4) ) And the drilling auger blade (5) and a plurality of improved material outlet (6), the drilling auger blade (5) is composed of a spiral having a constant angle, the cone bit (8) is a cone bit case (7) and The cone bit filling clip 15 is configured to be attached and detached, and a plurality of tip cone bits 9 are installed at the lower end as the connecting pins 11.

상기에서, 혼합교반 날개(1)가 고정된 롯드(2)는 지반 혼합처리에 사용되는 것이며, 통상의 롯드 연결박스(3)에 의해 천공오거(10)가 결합된다.In the above, the rod (2) to which the mixing stirring blade (1) is fixed is used for the ground mixing process, and the drilling auger (10) is coupled by the conventional rod connection box (3).

또한, 오거교란 날개(4)는 관입시 오거날에 붙어 올라오는 토사를 교란(흐트러뜨리기)하기 위한 것이며, 천공오거 날(5)은 일정 각도로 휘어져 연결된 나선형으로 되어 있으며, 콘 비트의 각도는 연직방향에 대해 10°∼45°가 적합한 것으로, 각도가 10°미만이면 천공에 많은 힘을 요하게되어 바람직하지 못하며, 45°보다 각도가 커지면 천공하는데 힘은 적게들지만 작업능률이 저하되는 문제가 있으며, 일반적으로 시공하는 지반이 단단하거나 암반층이 있는 경우는 각도가 큰 것을 이용하고, 비교적 연약지반의 경우에는 각도가 작은 콘 비트(8)를 이용하는 것이 천공 능률면에서 좋으며, 다수의 개량재 배출구(6)는 천공오거 날 및 선단부에서 배출되는 재료유량에 따라 크기가 다르게 구성된다.In addition, the Auger disturbance wing (4) is for disturbing (disrupting) the earth and sand adhering to the auger at the time of penetration, the perforated auger blade (5) is a spiral connected by bending at a certain angle, the angle of the cone bit 10 ° to 45 ° is appropriate for the vertical direction. If the angle is less than 10 °, a lot of force is required for drilling, and if the angle is larger than 45 °, the drilling force is small but the work efficiency is deteriorated. In general, when the ground is hard or there is a rock layer, a large angle is used, and in the case of a relatively soft ground, it is preferable to use a cone bit 8 having a small angle in terms of drilling efficiency. 6) is different in size depending on the material flow rate discharged from the drilling edge and the tip.

한편, 콘 비트(8)는 콘 비트 케이스(7)에 끼우고 콘 비트 채움클립(15)으로 감아주기 때문에 콘 비트(8)가 작업 중 빠지거나 비틀어지는 일이 없으며, 콘 비트(8)는 마모에 강한 텅스텐 재질로 이루어지고, 장기간 사용으로 콘 비트가 마모 되면 콘 비트의 교체가 가능하다.On the other hand, since the cone bit 8 is inserted into the cone bit case 7 and wound with the cone bit filling clip 15, the cone bit 8 does not fall out or twist during operation, and the cone bit 8 is It is made of tungsten material that is resistant to abrasion, and the cone bit can be replaced when the cone bit is worn out for a long time.

상기한 바와 같은 본 발명은 사용 후 콘 비트의 소모여부에 따라 탈 부착이 가능하므로 항상 높은 천공 효율을 유지할 수 있으며, 천공 및 혼합의 동시작업이 가능하므로 효율적인 지반 천공혼합 작업을 할 수 있다.The present invention as described above is possible to maintain the high drilling efficiency at all times because it can be attached and detached according to the consumption of the cone bit after use, it is possible to perform simultaneous ground drilling and mixing can be efficient ground drilling mixing work.

또한, 사력층이 존재하는 지반에서 관입이 용이하며, 선단부의 단단한 지층의 근입 깊이 확보가 가능하여 균일한 반응벽체와 기초 형성이 가능한 효과가 있다.In addition, it is easy to penetrate in the ground where the history layer is present, and it is possible to secure the depth of incidence of the rigid layer of the tip portion, and thus there is an effect that a uniform reaction wall and foundation can be formed.

그리고, 차수벽 설치시 하부 암반층까지 연속적으로 오염방지벽체를 형성할 수 있으므로 시공기간이 단축되고, 공사비가 대폭 절감되는 효과가 있다.In addition, since the contamination prevention wall can be continuously formed to the lower rock layer when the order wall is installed, the construction period is shortened and construction cost is greatly reduced.

또한, 본 발명은 심층혼합처리 장비에 쉽게 부착이 가능하여 활용성이 용이하며, 회전 효율이 좋은 유압오거장치를 사용할 경우 천공 및 혼합효과가 더욱 크다.In addition, the present invention can be easily attached to the deep mixing treatment equipment is easy to use, and when using a hydraulic auger with good rotation efficiency, the drilling and mixing effect is greater.

상기와 같이 구성된 본 발명은 시공 위치에서 오거드라이브(13)를 하강시켜 지반혼합처리를 행함에 있어, 롯드(2)에 콘 비트(8)가 부착된 천공오거(10)와 선단 콘 비트(9)를 연결하여 천공시키면서 다수의 개량재 배출구(6)를 통해 지반 속에 개량재를 막힘 없이 균일하게 혼합시킨다.According to the present invention configured as described above, in performing the ground mixing process by lowering the auger drive 13 at the construction position, the drill auger 10 and the tip cone bit 9 having the cone bit 8 attached to the rod 2 are carried out. ) And the perforations are mixed evenly without clogging in the ground through a plurality of improver outlet (6) while drilling.

지층에 암석층이 존재할 때 관입시에는 다수의 콘 비트(8)로 암석을 천공과 동시에 천공오거 날(5) 및 오거교란 날개(4)로 혼합시키며, 선단부의 단단한 지층에 도달시에도 선단 콘 비트(9)로 충분히 근입 깊이를 확보할 수 있다.When there is a rock layer in the strata, the rock is mixed with a plurality of cone bits (8) at the time of penetration and mixed with the drilling auger blade (5) and the auger wings (4) at the same time. (9) can fully secure the depth of indentation.

이때, 콘 비트(8)의 개수 및 배치 간격은 적용되는 사력층 및 암반층에 따라 조정하여 적용할 수 있다.At this time, the number and arrangement interval of the cone bit (8) can be adjusted and applied according to the applied sand layer and rock layer.

즉, 연약지반의 경우에는 콘 비트(8)의 개수를 줄이고 배치 형태를 천공날개에 일자형태로 배치하고, 배치 간격을 넓혀도 되지만, 암반층이나 지반이 단단할 경우에는 콘 비트(8)의 개수를 늘리고 배치간격을 좁히는 것이 좋으며, 특히 암반층의 경우에는 선단 콘 비트(9)를 이용하여 암석을 천공하는 것이 용이하다.That is, in the case of soft ground, the number of cone bits 8 may be reduced, and the arrangement may be arranged on the perforated wings in a straight line, and the arrangement interval may be widened. However, when the rock layer or the ground is hard, the number of cone bits 8 may be increased. It is better to increase and to narrow the spacing, especially in the case of rock layers, it is easy to perforate the rock using the tip cone bit (9).

천공오거 장치를 인발시에는 다수의 혼합교반 날개(1)로 교반하면서 상승시켜 지반에서 빼내어 결국 사력층에 존재하는 지반을 균일하게 천공할 수 있으며, 지반 개량체 및 오염방지벽체(12)를 용이하게 형성할 수 있게 되는 것이다.When the drilling auger is drawn out, it is raised while stirring with a plurality of mixing stir blades 1, and it can be pulled out of the ground and finally perforated the ground existing in the sand layer, and the ground improvement body and the pollution prevention wall 12 are easy. It will be able to form.

본 발명에 의하면, 지중이나 지하 암반층에 대해 나선형태의 천공오거 날(5)을 따라 천공된 흙을 연속적으로 올려주면서 오거교란 날개(4)에서 덩어리진 흙을 한번 더 파쇄하여 작은 상태로 분리시키고 재료와의 혼합을 강화시킴으로써 천공 및 혼합의 동시작업이 가능하며, 천공오거의 날(5)에 크기가 다른 다수의 배출구(6)가 설치되어 있으므로 배출구의 막힘 현상이 적다.According to the present invention, while continuously raising the perforated soil along the spiral perforated auger blade 5 against the underground or underground rock layers, the agglomerated soil is shredded once more and separated into small states. By reinforcing mixing with the material, simultaneous work of drilling and mixing is possible, and since a plurality of discharge holes 6 having different sizes are installed on the blade 5 of the drilling auger, there is less clogging of the discharge holes.

따라서, 장비 성능에 따라서는 콘 비트(8)가 부착된 천공오거(10)를 단축, 다축으로 사용할 수도 있으며, 개량 목적에 따라 기초, 차수벽 및 반응벽체 등에도 활용할 수 있다.Therefore, depending on the performance of the equipment, the drill auger 10 with the cone bit 8 may be used as a single axis or multiple axes, and may also be used for foundations, order walls, reaction walls, and the like, depending on the improvement purpose.

도 1은 콘 비트가 부착된 천공오거의 사시도 및 평면도1 is a perspective view and a plan view of a drill auger attached to a cone bit

도 2는 콘 비트의 상세도2 is a detail view of the cone bit.

도 3은 지반혼합처리 상세도3 is a detailed view of ground mixing treatment

도 4는 콘 비트가 부착된 천공오거 사용상태의 단면도4 is a cross-sectional view of the use of the drill auger with a cone bit attached

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

1 ; 혼합교반 날개 2 ; 롯드 3 ; 롯드 연결박스One ; Mixed stirring blade 2; Lot 3; Lotte connection box

4 ; 오거교란 날개 5 ; 천공오거 날 6 ; 개량재 배출구4 ; Auger Wings 5; Drill Auger Day 6; Improved material outlet

7 ; 콘 비트 케이스 8 ; 콘 비트 9 ; 선단 콘 비트7; Cone bit case 8; Cone bit 9; Tip Cone Bit

10 ; 콘 비트가 부착된 천공오거 11 ; 연결핀 10; Drilling auger with cone bit 11; Connecting pin

12 ; 지반개량체 및 오염방지벽체 13 ; 오거드라이브12; Ground improvers and antifouling walls 13; Augusta Drive

15 ; 콘 비트 채움클립15; Cone Bit Filling Clip

Claims (5)

천공오거의 날이 일정각도를 갖는 나선형으로 구성되며 혼합교반날개가 고정된 롯드의 하단에 롯드 연결박스에 의해 천공오거를 결합한 통상의 천공오거장치에 있어서, 천공오거에는 오거 교란날개와 천공오거 날 및 다수의 개량재 배출구가 구성되며, 콘 비트는 콘 비트 케이스 및 콘 비트 채움 클립으로 착탈 자재토록 구성되며, 하단부에는 다수의 선단 콘 비트가 연결핀으로 설치되어 있는 것을 특징으로 하는 콘 비트가 부착된 천공오거장치.In the conventional boring auger device in which the boring auger is composed of a spiral having a certain angle, and the boring auger is combined by a rod connection box at the bottom of the rod on which the stir blade is fixed, the auger blade and the boring auger And a plurality of outlets for improving material, and the cone bit is detachable with a cone bit case and a cone bit filling clip, and a cone bit is attached to a lower end with a plurality of tip cone bits installed as a connecting pin. Drilling auger device. 제1항에 있어서, The method of claim 1, 콘 비트의 각도가 연직방향에 대해 10°∼45°것을 특징으로 하는 콘 비트가 부착된 천공오거장치.A perforated auger device with a cone bit, wherein the angle of the cone bit is 10 ° to 45 ° with respect to the vertical direction. 삭제delete 제1항에 있어서,The method of claim 1, 콘 비트는 장기간 사용으로 콘 비트가 마모되면 콘 비트의 교체가 가능하도록 설치되는 것을 특징으로 하는 콘 비트가 부착된 천공오거장치.The cone bit is drill bit auger device with a cone bit, characterized in that the cone bit is installed so that it can be replaced when the cone bit is worn out for a long time. 시공 위치에서 오거드라이브를 하강시켜 지반혼합처리를 행함에 있어서, 롯드에 콘 비트가 부착된 천공오거와 선단 콘 비트를 연결하여 천공시키면서 다수의 개량재 배출구를 통해 지반 속에 개량재를 막힘 없이 균일하게 혼합시키고,In the ground mixing process by lowering the auger drive at the construction position, while drilling the boring auger with the cone bit attached to the rod and the tip cone bit, drilling is carried out evenly without blocking the improvement material in the ground through a number of improvement material outlets. Mix, 지층에 암석층이 존재할 때 관입시에는 다수의 콘 비트로 암석을 천공과 동시에 천공오거 날 및 오거교란 날개로 혼합시키며, 선단부의 단단한 지층에 도달시에도 선단 콘 비트로 충분히 근입 깊이를 확보하고,When there is a rock layer in the strata, the rock is mixed with a plurality of cone bits at the time of penetration, and at the same time, the rock is mixed with perforated augers and auger disturbing wings. 적용되는 사력층 및 암반층에 따라 콘 비트의 개수 및 배치 간격을 조정하여 적용하고,Adjust and apply the number and placement of cone bits according to the applied sand and rock layers, 천공오거 장치를 다수의 혼합교반 날개로 교반하면서 상승시켜 지반에서 인발하므로 천공 및 혼합의 동시작업이 가능하도록 하는 것을 특징으로 하는 콘 비트가 부착된 천공오거를 이용한 지반혼합처리방법. A ground mixing treatment method using a conical bit with a drill bit, characterized in that the drilling auger device is raised while stirring with a plurality of mixing stir blades to draw from the ground to enable simultaneous operation of drilling and mixing.
KR1020070122062A 2007-11-28 2007-11-28 a piercing auger and mixing method for soft ground at use of it's KR101021562B1 (en)

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KR0144777B1 (en) * 1995-01-21 1998-09-15 박정구 Auger drill machine and spiral groove manufacturing method of underground hole and spiral foundation pile
KR19990069495A (en) * 1998-02-10 1999-09-06 김영억 Fixing method of pin type bearing on bit end face of auger
KR20060011902A (en) * 2006-01-14 2006-02-03 주식회사 동아지질 An excavating bit with improved excavating efficiency

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0144777B1 (en) * 1995-01-21 1998-09-15 박정구 Auger drill machine and spiral groove manufacturing method of underground hole and spiral foundation pile
KR19990069495A (en) * 1998-02-10 1999-09-06 김영억 Fixing method of pin type bearing on bit end face of auger
KR20060011902A (en) * 2006-01-14 2006-02-03 주식회사 동아지질 An excavating bit with improved excavating efficiency

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