KR102469401B1 - viscose soil cutting device for shaft auger device - Google Patents

viscose soil cutting device for shaft auger device Download PDF

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KR102469401B1
KR102469401B1 KR1020190124666A KR20190124666A KR102469401B1 KR 102469401 B1 KR102469401 B1 KR 102469401B1 KR 1020190124666 A KR1020190124666 A KR 1020190124666A KR 20190124666 A KR20190124666 A KR 20190124666A KR 102469401 B1 KR102469401 B1 KR 102469401B1
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excavation
ground
soil
wire
soft ground
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KR1020190124666A
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Korean (ko)
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KR20210041889A (en
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권순찬
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주식회사 부산지질
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    • 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/13Foundation slots or slits; Implements for making these slots or slits
    • 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)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Earth Drilling (AREA)

Abstract

본 발명은 점성토, 사질토, 유기질토 등의 연약지반내에 시멘트와 물, 벤토나이트 등의 충진재를 저압으로 주입하면서 연약토와 교반 혼합하여 연약지반을 개량하거나 원지반내에 원주형의 파일을 연속적으로 조성하는 지반굴착용 오거장치의 굴착로드에 점성토를 보다 쉽게 파쇄할 수 있는 파쇄장치를 설치하여 토사와 충진재가 고르게 혼합될 수 있도록 함으로써 견고한 연약지반 또는 지하연속벽을 조성할 수 있도록 한 지반굴착용 오거장치의 점성토 절단장치에 관한 것이다. The present invention is a ground that improves soft ground by injecting fillers such as cement, water, bentonite, etc. into soft ground such as cohesive soil, sandy soil, and organic soil at low pressure while stirring and mixing with soft soil to improve soft ground or to continuously create columnar piles in the original ground A crushing device that can more easily crush cohesive soil is installed on the excavation rod of the auger device for ground excavation so that soil sand and filler can be mixed evenly to form a solid soft ground or underground continuous wall. It relates to a cohesive soil cutting device.

Description

지반굴착용 오거장치의 점성토 절단장치{viscose soil cutting device for shaft auger device} Viscose soil cutting device for auger device for ground excavation {viscose soil cutting device for shaft auger device}

본 발명은 점성토, 사질토, 유기질토 등의 연약지반내에 시멘트와 물, 벤토나이트 등의 충진재를 저압으로 주입하면서 연약토와 교반 혼합하여 연약지반을 개량하거나 원지반내에 원주형의 파일을 연속적으로 조성하는 지반굴착용 오거장치의 굴착로드에 점성토를 보다 쉽게 파쇄할 수 있는 파쇄장치를 설치하여 토사와 충진재가 고르게 혼합될 수 있도록 함으로써 견고한 연약지반 또는 지하연속벽을 조성할 수 있도록 한 지반굴착용 오거장치의 점성토 절단장치에 관한 것이다. The present invention is a ground that improves soft ground by injecting fillers such as cement, water, bentonite, etc. into soft ground such as cohesive soil, sandy soil, and organic soil at low pressure while stirring and mixing with soft soil to improve soft ground or to continuously create columnar piles in the original ground A crushing device that can more easily crush cohesive soil is installed on the excavation rod of the auger device for ground excavation so that soil sand and filler can be mixed evenly to form a solid soft ground or underground continuous wall. It relates to a cohesive soil cutting device.

일반적으로 연약지반을 개량하거나 지하연속벽을 구축할 때 굴착기에 의해 굴착공을 뚫게 되는 데 이러한 굴착기는 오가머신에 구동기어박스를 설치하고 이의 구동기어축에 굴착비트와 다수개의 교반날개를 일정각도와 방향 및 간격으로 고정 설치한 한 개 이상의 오가로드를 수직으로 이격되게 결합하여 동시에 회전시키므로서 연약지반을 굴착하면서 시멘트와 물, 벤토나이트를 토사와 함께 교반하여 연속벽을 형성하게 된다. In general, when improving soft ground or constructing a continuous underground wall, an excavator drills an excavation hole. In this excavator, a drive gear box is installed on the Oga machine, and an excavation bit and a plurality of stirring blades are installed on the drive gear shaft at a certain angle. By combining one or more Oga rods fixedly installed vertically and spaced apart from each other and rotating at the same time, a continuous wall is formed by stirring cement, water, and bentonite with soil while excavating soft ground.

이때 점성이 없는 사질토의 경우에는 비교적 굴착이 쉬운 반면에 점성을 가진 점성토의 경우에는 점성으로 인해 굴착이 용이하지 않고 특히, 굴착과정에서 점성토는 사질토와는 달리 굴착비트와 교반날개에 의해서도 잘게 파쇄되지 아니하므로 굴착시 부하가 많이 걸리고 또 덩어리채로서 교반날개에 끼인 채로 회전되므로충진재와 잘게 혼합되지 않게 됨에 따라 연약지반을 개량하는 부정적인 요인을 주게 되며 이로 인해 견고한 연속벽을 조성할 수 없어 부실공사를 초래하는 문제가 있었다.At this time, in the case of sandy soil without viscosity, excavation is relatively easy, whereas in the case of viscous soil, excavation is not easy due to its viscosity. Therefore, it takes a lot of load during excavation and rotates while being caught in the stirring blade as a lump, so it is not mixed well with the filler, giving a negative factor to improve the soft ground. There was a problem that caused

본 발명의 목적은 상기한 문제점을 해결하기 위한 데 있는 것으로 한 축이 상으로 이격되게 수직 설치된 인접하는 두 개의 굴착로드에 점성토를 절단하는 절단와이어를 무한벨트 형식으로 수평 연결하여 굴착로드의 굴착시 절단와이어가 하강하면서 점성토를 절단할 수 있게 함으로써 보다 견고한 연속벽을 조성할 수 있도록 한 지반굴착용 오거장치의 점성토 절단장치를 제공하는 데 있다. An object of the present invention is to solve the above problems by horizontally connecting a cutting wire for cutting cohesive soil to two adjacent drilling rods installed vertically apart from each other on one axis in the form of an endless belt to excavate the excavation rod. It is an object of the present invention to provide a cohesive soil cutting device of an auger device for ground excavation that enables a more robust continuous wall to be formed by allowing the cutting wire to cut the cohesive soil while descending.

본 발명은 이러한 목적을 달성하기 위한 수단으로, 굴착비트와 다수개의 교반날개를 좌우로 설치한 한 축 이상의 굴착로드를 일정간격으로 이격되게 설치한 지반굴착용 오거장치에 있어서, 2 축의 굴착로드를 한 조로 하여 2 축의 굴착로드 를 무한벨트식으로 연결하는 점성토 절단용 와이어를 굴착비트의 상부측에 축방향과 교차되도록 취부장치에 의해 수평으로 설치하여서 됨을 특징으로 하는 지반굴착용 오거장치의 점성토 절단장치를 제공한다. The present invention is a means for achieving this object, in an auger device for ground excavation in which one or more axis excavation rods installed at regular intervals with an excavation bit and a plurality of stirring blades installed on the left and right, a two-axis excavation rod Cohesive soil cutting of an auger device for ground excavation, characterized in that the cohesive cutting wire connecting the two shaft excavation rods in a pair with an endless belt type is installed horizontally by a mounting device so as to cross the axial direction on the upper side of the excavation bit provide the device.

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이와 같은 본 발명에 따르면 이웃하는 두개의 굴착로드를 수평으로 연결하는 벨트 형식의 절단와이어가 굴착시 덩어리 상태의 진흙 및 찰흙과 같은 점성토를 위에서 아래로 절단하면서 하강하므로 점성토를 잘게 파쇄하여 충진제와의 혼합이 잘 이루어짐에 따라 연약지반의 확실한 개량이 이루어지고 견고한 연속벽을 조성할 수 있는 효과가 있다. According to the present invention, since the belt-type cutting wire connecting two neighboring excavation rods horizontally cuts clay and clay in a lumpy state from top to bottom during excavation, the cohesive soil is finely crushed and As the mixing is well done, there is an effect that the soft ground can be surely improved and a solid continuous wall can be formed.

도 1은 본 발명에 따른 오거장치의 전체 구조도
도 2는 본 발명의 요부 사시도
도 3은 본 발명에 따른 지반 굴착상태도
도 4는 도 3의 "가-가"선 단면도
도 5는 도 4의 "나-나"선 단면도
도 6은 본 발명을 다축의 굴착로드에 적용한 상태의 예시도
1 is an overall structural diagram of an auger device according to the present invention
Figure 2 is a perspective view of the main part of the present invention
3 is a ground excavation state diagram according to the present invention
Figure 4 is a cross-sectional view along the line "Ga-Ga" of Figure 3
Figure 5 is a cross-sectional view along line "I-I" of FIG.
6 is an exemplary view of a state in which the present invention is applied to a multi-axis excavation rod

이하 본 발명을 첨부도면에 참조하여 상세히 설명하면 다음과 같다. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 지반굴착용 오거장치의 점성토 절단장치는 도 1 내지 도 6에 도시된 바와 같이, 굴착비트(10)와 다수개의 교반날개(20)를 좌우로 설치한 한 축 이상의 굴착로드(100)를 일정간격으로 이격되게 설치한 지반굴착용 오거장치(500)에 있어서, 2 축의 굴착로드(100)(100')를 한 조로 하여 2 축의 굴착로드(100)(100')를 무한벨트식으로 연결하는 점성토 절단용 와이어(30)를 굴착비트(10)의 상부측에 축방향과 교차되도록 취부장치(40)에 의해 수평으로 설치하여서 됨을 특징으로 한다.
상기 취부장치(40)는 굴착로드(100)(100')에 이격되게 용착된 상부링(50)과 하부링(60), 상기 상부링(50) 및 하부링(60)의 사이에 부싱(70)과 함께 유설되어 와이어(30)가 끼워지는 와이어홈(30')을 갖는 안내링(80)을 포함하여 이루어짐을 특징으로 한다.
또한, 상기 와이어(30)는 가느다란 강선으로 이루어지며, 굴착로드(100)(100')에 간격을 두고 상하로 다수개를 설치할 수 있으며, 도 6과 같이 굴착로드(100)(100')가 다축인 경우에는 상하로 와이어(30)의 방향을 다르게 설치할 수 있다.
As shown in FIGS. 1 to 6, the cohesive soil cutting device of the auger device for ground excavation of the present invention includes an excavation rod 100 having one or more shafts installed with an excavation bit 10 and a plurality of stirring blades 20 left and right. In the auger device 500 for ground excavation installed at regular intervals, the two-axis excavation rod 100 (100') is set as a set and the two-axis excavation rod 100 (100') is endless belt type It is characterized in that the connecting clay cutting wire 30 is installed horizontally by the mounting device 40 so as to cross the axial direction on the upper side of the drilling bit 10.
The mounting device 40 is a bushing ( 70) and a guide ring 80 having a wire groove 30' into which the wire 30 is inserted.
In addition, the wire 30 is made of a thin steel wire, and a plurality of them can be installed vertically at intervals on the excavation rod 100, 100', as shown in FIG. 6, the excavation rod 100, 100' When is multi-axis, the direction of the wire 30 can be installed differently up and down.

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이와같이 된 본 발명은 두 축의 굴착로드(100)(100')를 한 조로 하여 이를 연결하는 점성토 절단용 와이어(30)는 굴착로드(100)(100')에 이격되게 용착된 상부링(50)과 하부링(60)의 사이에 부싱(70)과 함께 유설되는 안내링(80)의 와이어홈(30')에 끼워져 있으므로 굴착로드(100)(100')가 회전하면 이에 용착된 상부링(50)과 하부링(60)은 동시에 회전하지만, 이의 내부에 유설되어 있는 안내링(80)은 동시에 회전되지 않게 되고, 상기 안내링(80)의 와이어홈(30')에 끼워진 와이어(30) 역시 회전되지 않게 된다. In this way, the present invention sets the excavation rods 100 and 100' of the two shafts as a set, and the cohesive soil cutting wire 30 connecting them is an upper ring 50 welded to the excavation rods 100 and 100' at a distance from each other Since it is inserted into the wire groove 30 'of the guide ring 80 flowing along with the bushing 70 between the and lower ring 60, when the excavation rod 100 (100') rotates, the upper ring welded thereto ( 50) and the lower ring 60 rotate simultaneously, but the guide ring 80 spilled therein does not rotate at the same time, and the wire 30 inserted into the wire groove 30' of the guide ring 80 It also won't rotate.

따라서, 굴착로드(100)(100')가 회전하면서 굴착비트(10)가 지반을 굴착하는 과정에서 굴착로드(100)(100')의 사이로 굴착로드(100)(100')를 따라 올라오는 진흙이나 찰흙과 같은 점성토의 덩어리는 와이어(30)의 가느다란 와이어에 의해 간단하게 절단되고 절단된 점성토는 다시 교반날개(20)에 의해 굴착로드(100)(100')를 통해 공급되는 충진재와 함께 혼합되어 교반되는 과정에서 보다 작게 파쇄되므로 충진재와 잘 혼합되어 연약지반을 개량하고 또 견고한 연속벽을 조성할 수 있게 되는 것이다. Therefore, while the excavation rod 100 (100') rotates and the excavation bit 10 excavates the ground, the excavation rod 100 (100') rises between the excavation rods 100 (100') in the process of excavating the ground. A lump of cohesive soil such as mud or clay is simply cut by a thin wire of the wire 30, and the cut cohesive soil is again supplied by the agitating blade 20 through the excavation rod 100, 100'. In the process of being mixed and stirred, they are crushed into smaller pieces, so they can be well mixed with the filler to improve soft ground and to form a solid continuous wall.

한편, 와이어(30)가 끼워진 취부장치(40)는 굴착로드(100)(100')에 상하로 이격 설치된 상부링(50)과 하부링(60)의 사이에 와이어홈(30')이 형성된 안내링(80)이 부싱(70)과 함께 유설되어 있으므로 굴착로드(100)(100')가 회전시 안내링은 회전되지 않게 되고 안내링(80)의 와이어홈(30')에 끼워진 와이어(30)도 회전되지 않게 됨에 따라 굴착로드(100)(100')의 회전에 관계없이 축방향과 교차 설치된 상태로 굴착로드(100)(100')를 따라 하강되면서 점성토를 절단하게 된다. On the other hand, in the attachment device 40 into which the wire 30 is inserted, a wire groove 30' is formed between the upper ring 50 and the lower ring 60 vertically spaced apart from the excavation rods 100 and 100'. Since the guide ring 80 is laid together with the bushing 70, the guide ring does not rotate when the excavation rod 100 (100 ') rotates, and the wire inserted into the wire groove 30 'of the guide ring 80 ( 30) is also not rotated, so regardless of the rotation of the drilling rod 100 (100'), the clay is cut while descending along the drilling rod 100 (100') in a state of crossing with the axial direction.

여기서 안내링(80)은 상부링(50)과 하부링(60)의 사이에 끼워져 있으므로 완전하게 정지된 상태가 아니라 미세하게 조금씩 회전될 수 있는 바, 이러한 미세한 회전은 와이어(30)가 작용을 하는 데 아무런 지장을 주지 않게 되는 데 오히려 조금씩 회전되는 것이 일정한 위치에서 마찰로 인한 마모를 감소시킬 수 있는 점에서 더 유리하며, 안내링(80)과 함께 설치된 부싱(70)은 안내링(80)의 미세한 회전으로 인해 굴착로드(100)(100')와 안내링(80)이 마모되는 것을 방지하는 역할을 한다. Here, since the guide ring 80 is sandwiched between the upper ring 50 and the lower ring 60, it can be rotated in small increments rather than in a completely stopped state, and this fine rotation causes the wire 30 to act. It is more advantageous in that it can reduce wear due to friction at a certain position, and the bushing 70 installed together with the guide ring 80 is rotated little by little. It serves to prevent the excavation rod 100, 100' and the guide ring 80 from being worn due to the fine rotation of the.

그리고 점성토 절단용 와이어(30)는 가늘면서도 강도가 우수한 강선으로 무한벨트 형식으로 구성되어 있으므로 강도가 우수하여 쉽게 파단되지 아니하며, 또 2 축을 동시에 연결하여 두줄이 이격되게 나란히 형성되므로 점성토는 두 줄에 의해 보다 작은 크기로 절단되는 점에서 효율적이다. In addition, since the wire 30 for cutting cohesive soil is composed of an endless belt type with a thin but excellent strength steel wire, it has excellent strength and is not easily broken. It is efficient in that it is cut into smaller sizes by

이러한, 와이어(30)는 굴착로드(100)(100')에 간격을 두고 상하로 다수개를 설치할 수 있으며, 도 6과 같이 굴착로드(100)(100')가 다축 즉 4축인 경우에는 상하로 와이어(30)의 방향을 다르게 설치하는 것이 점성토를 여러 방향에서 보다 효과적으로 절단할 수 있다. These wires 30 can be installed vertically at intervals on the excavation rods 100 and 100', and as shown in FIG. 6, when the excavation rods 100 and 100' are multi-axis, that is, four-axis, Installing the furnace wire 30 in different directions can more effectively cut the cohesive soil in various directions.

이와같이 본 발명에 따르면, 굴착비트(10)나 교반날개(20)에 의해 쉽게 파쇄되지 않는 점성토를 가느다란 강선으로 된 와이어(30)에 의해 보다 쉽게 절단하므로 충진재와의 혼합이 잘 이루어지게 할 수 있어 견고한 벽체를 조정할 수 있는 효과가 있다. In this way, according to the present invention, since the cohesive soil that is not easily crushed by the excavation bit 10 or the stirring blade 20 is more easily cut by the thin steel wire 30, mixing with the filler can be achieved. It has the effect of adjusting the solid wall.

10 : 굴착비트 20 : 교반날개 30 : 와이어 30' : 와이어홈 40 : 취부장치 50 : 상부링 60 : 하부링 70 : 부싱 80 : 안내링 100,100' : 굴착로드 500 : 오거장치Reference Numerals 10: excavation bit 20: stirring blade 30: wire 30': wire groove 40: mounting device 50: upper ring 60: lower ring 70: bushing 80: guide ring 100,100': excavation rod 500: auger device

Claims (3)

굴착비트(10)와 다수개의 교반날개(20)를 좌우로 설치한 한 축 이상의 굴착로드(100)를 일정간격으로 이격되게 설치한 지반굴착용 오거장치(500)에 있어서, 2축의 굴착로드(100)(100')를 한 조로 하여 2축의 굴착로드(100)(100')를 무한벨트식으로 연결하는 점성토 절단용 와이어(30)를 굴착비트(10)의 상부측에 축방향과 교차되도록 취부장치(40)에 의해 수평으로 설치하여서 됨을 특징으로 하는 지반굴착용 오거장치의 점성토 절단장치.
In the auger device 500 for ground excavation in which one or more axis excavation rods 100 installed with an excavation bit 10 and a plurality of stirring blades 20 left and right are installed at regular intervals, the excavation rod of two axes ( 100) (100') as a set to connect the two-axis excavation rod 100 (100') in an endless belt type, so that the clay cutting wire 30 crosses the axial direction on the upper side of the excavation bit 10 Clay soil cutting device of an auger device for ground excavation, characterized in that it is installed horizontally by the mounting device 40.
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Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2000230245A (en) * 1999-02-10 2000-08-22 Takenaka Komuten Co Ltd Continuous hole drilling method and its device

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JPH09291527A (en) * 1996-04-26 1997-11-11 Fujita Corp Biaxial agitator for mixing of deep layer
KR101584163B1 (en) * 2014-04-24 2016-01-14 형제기초건설 (주) Connected band of excavating rod of ground excavating device used in SCW method
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JP2000230245A (en) * 1999-02-10 2000-08-22 Takenaka Komuten Co Ltd Continuous hole drilling method and its device

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