KR100468113B1 - Reinforced steel pipe one shot grouting apparatus and method of the same - Google Patents

Reinforced steel pipe one shot grouting apparatus and method of the same Download PDF

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Publication number
KR100468113B1
KR100468113B1 KR10-2002-0060979A KR20020060979A KR100468113B1 KR 100468113 B1 KR100468113 B1 KR 100468113B1 KR 20020060979 A KR20020060979 A KR 20020060979A KR 100468113 B1 KR100468113 B1 KR 100468113B1
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injection
pipe
cement sludge
sealing member
rod
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KR10-2002-0060979A
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KR20020083992A (en
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서정희
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최제인
김선홍
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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
    • E02D2250/00Production methods
    • E02D2250/003Injection of material

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (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 강관 동시주입 그라우팅 장치 및 그 시공방법에 관한 것으로, 천공로드내에 각각 길이가 다른 다수의 주입튜브를 내설하여 압출공이 형성된 위치로 정확하게 시멘트 슬러지를 압출할 수 있도록 함으로써 작업시간이 효율적으로 감소될 뿐만 아니라 정확한 주입위치를 유지시킬 수 있도록 한 강관 동시주입 그라우팅 장치 및 그 시공방법을 제공하는데 그 목적이 있다.The present invention relates to a steel pipe simultaneous injection grouting device and its construction method, by inserting a plurality of injection tubes of different lengths in the perforated rod to precisely extrude the cement sludge to the position where the extrusion hole is formed to reduce the working time efficiently In addition, it is an object of the present invention to provide a steel pipe simultaneous injection grouting apparatus and its construction method to maintain the correct injection position.

본 발명은 다수개로 구성되며, 각각 결합되도록 그 양단에 나사선이 각각 설치된 연결부가 제공되며, 그 몸통 외주연에 다수의 압출공이 형성된 파이프와; 상기 파이프의 각 연결부에 게재되어 시멘트 슬러지 압출시 상단으로 시멘트 슬러지가 역류되는 것을 방지하며, 그 중앙에 형성된 관통홀에 연결로드가 게재된 다수의 밀봉부재와; 다수의 연통된 주입유로의 종단위치가 다수의 파이프에 각각 서로 다르게 위치되도록 상기 밀봉부재의 연결로드 양단에 각각 끼워지는 주입튜브와; 상기 최상단의 파이프에 형성된 밀봉부재의 다수개 연결로드에 순차적으로 끼워져 시멘트 슬러지를 각각 상이한 주입유로를 통해 각각의 파이프 내부로 주입시켜 압출공을 통해 외부로 방출시키기 위한 연결로드로 구성됨을 특징으로 한다.The present invention comprises a plurality of pipes, each of which is provided with connecting portions each of which is provided with a screw thread at both ends thereof, the pipe having a plurality of extruded holes formed on the outer periphery of the body; A plurality of sealing members disposed on each connection part of the pipe to prevent the cement sludge from flowing back to the upper end when the cement sludge is extruded, and a connection rod is provided in the through hole formed at the center thereof; An injection tube fitted to both ends of the connecting rod of the sealing member so that the end positions of the plurality of connected injection passages are differently positioned in the plurality of pipes; It is characterized in that it consists of a connecting rod for sequentially inserting a plurality of connecting rods of the sealing member formed in the pipe of the upper end and injecting the cement sludge into each pipe through a different injection passage to discharge through the extrusion hole to the outside .

본 발명을 적용하면, 사용자가 주입튜브를 일정 길이 잡아당기고 주입펌프를 구동시켜 시멘트 슬러지를 압출시키고, 일정시간 후에 다시 주입튜브를 잡아당겨야 하는 과정이 필요없게 되므로 매우 신속한 시공이 이루어진다. 또한, 비숙련자라도 주입튜브를 인출하는 과정이 필요없으므로 편리하게 시멘트 슬러지를 압출시킬 수 있는 장점이 있다.According to the present invention, the user pulls the injection tube to a certain length and drives the injection pump to extrude the cement sludge, so that the process of pulling the injection tube again after a certain time does not require a very fast construction. In addition, even a non-skilled person does not need to take out the injection tube, there is an advantage that can be conveniently extruded cement sludge.

Description

강관 동시주입 그라우팅 장치 및 그 시공방법{REINFORCED STEEL PIPE ONE SHOT GROUTING APPARATUS AND METHOD OF THE SAME}Steel pipe simultaneous injection grouting device and construction method {REINFORCED STEEL PIPE ONE SHOT GROUTING APPARATUS AND METHOD OF THE SAME}

본 발명은 강관 동시주입 그라우팅 장치 및 그 시공방법에 관한 것으로, 특히천공로드내에 각각 길이가 다른 다수의 주입튜브를 내설하여 압출공이 형성된 위치로 정확하게 시멘트 슬러지를 압출할 수 있도록 함으로써 작업시간이 효율적으로 감소될 뿐만 아니라 정확한 주입위치를 유지시킬 수 있도록 한 강관 동시주입 그라우팅 장치 및 그 시공방법에 관한 것이다.The present invention relates to a steel pipe simultaneous injection grouting device and a construction method thereof, and in particular, by inserting a plurality of injection tubes of different lengths in the perforated rod to precisely extrude the cement sludge to the position where the extrusion hole is formed, the working time is efficiently The present invention relates to a steel pipe co-injection grouting device and a construction method thereof, which can be reduced as well as maintain an accurate injection position.

일반적으로 연약지반을 보강하거나 연약지반에 구축된 구조물의 침하를 방지하기 위해 사용된 차수 그라우팅을 이용한 지반 개량 공법들은 유동성 주입재인 시멘트 슬러지나 약액을 침하된 지반 등에 구멍을 뚫어 강제로 충전 응고시켜 강고한 구축물을 시공하는 공법이다.In general, the ground improvement methods using the order grouting used to reinforce the soft ground or to prevent the settlement of the structure built on the soft ground are forcibly filled and solidified by punching the cement sludge, which is the liquid injection material, or the liquid into the ground. It is a construction method to construct a structure.

이와 같은 공법으로는 여러 공법이 있으나 그 중 일 예로 도 1과 도 2에 도시한 바와 같은 SGR공법(SPACE GROUTING ROCKET SYSTEM)을 수행하기 위한 그라우팅 장치(2)는 주입선단부(14)를 선단에 구비하는 천공로드(4)를 지반에 굴삭한 후, 그 천공로드(4)의 내측으로 주입튜브(16)를 삽입하고, 그 주입튜브(16)를 매개하여 주입펌프(도시는 생략)를 통해 고압의 시멘트 슬러지를 공급하여 천공로드(4) 선단에 연결 설치된 주입선단부(14)측으로 시멘트 슬러지가 이동된다.There are several methods such as this method, but one example of the grouting device (2) for performing the SGR (SPACE GROUTING ROCKET SYSTEM) as shown in Figures 1 and 2 is provided with an injection tip 14 at the tip After drilling the drilling rod (4) to the ground, the injection tube 16 is inserted into the drilling rod (4), and the high pressure through the injection pump (not shown) through the injection tube 16 The cement sludge of the cement sludge is moved toward the injection tip portion 14 connected to the perforated rod 4.

이때, 상기 천공로드(4)는 미리 천공된 지반 공간과 천공로드(4)의 사이에 시멘트 슬러지가 메워지도록 그 외주면에 시멘트 슬러지를 압출시키는 다수의 압출공(10)이 일정길이 간격으로 형성되며, 상기 천공로드(4)의 내주연 중 그 압출공(10)이 형성된 전단에 각각 밀봉부재(12)가 링형태로 부착되고, 상기 천공로드(4)의 전단부에는 상기 주입튜브(16)를 삽입하기 위한 개구부(8)가 형성된다.그리고, 그 개구부(8)의 외주연에는 미리 천공된 지반의 천공부와 천공로드(4)의 사이를 밀봉시키기 위한 밀봉부재(6)가 부착된다.At this time, the perforated rod 4 is formed with a plurality of extrusion holes 10 for extruding cement sludge on the outer circumferential surface so that the cement sludge is filled between the previously perforated ground space and the perforated rod 4 In the inner periphery of the punching rod 4, the sealing member 12 is attached in a ring shape to the front end of the extruded hole 10, and the injection tube 16 is attached to the front end of the punching rod 4, respectively. An opening 8 for inserting the opening 8 is formed. A sealing member 6 is attached to the outer periphery of the opening 8 to seal between the punched portion of the ground previously drilled and the punching rod 4. .

따라서, 도 2에 도시된 바와 같이, 미리 연약지반(20)의 소정부에 일정 직경의 구멍(22)을 천공한 후, 그 천공구멍(22)에 상기 천공로드(4)를 삽입하고, 그 천공로드(4)의 개구부(8)를 통해 상기 주입튜브(16)를 삽입한다.Therefore, as shown in FIG. 2, after drilling a hole 22 having a predetermined diameter in a predetermined portion of the soft ground 20, the drilling rod 4 is inserted into the hole 22. The injection tube 16 is inserted through the opening 8 of the drilling rod 4.

그리고, 그 주입튜브(16)의 전단부에 주입펌프(도시는 생략)를 연결하고, 그 주입펌프를 구동시키면 시멘트 슬러지가 상기 주입튜브(16)를 통해 유입되어 주입구(18)를 통해 상기 천공로드(4)의 내부를 가득 채우게 된다.Then, when an injection pump (not shown) is connected to the front end of the injection tube 16 and the injection pump is driven, cement sludge flows in through the injection tube 16 to drill the hole through the injection hole 18. The inside of the rod 4 is filled up.

천공로드(4)의 내부를 채운 시멘트 슬러지는 천공로드(4) 내부에 부착된 다단의 밀봉부재(12)에 의해 그 상단부로 유입되지 못하므로 천공로드(4)에 형성된 압출공(10)을 통해 압출되어 천공로드(4)의 외부로 배출된다.상기 압출공(10)을 통해 어느 정도 시멘트 슬러지가 외부로 배출되면 사용자는 상기 주입튜브(16)를 천공로드(4)의 외부로 일정 길이 인출시킨 다음, 그 다음 압출공(10)을 통해 시멘트 슬러지를 배출시키도록 한다.즉, 도 2와 같이 주입튜브(16)를 상부측으로 인출시켜야만 한다.Cement sludge filling the inside of the drilling rod (4) is not introduced into the upper end by the multi-stage sealing member (12) attached to the inside of the drilling rod (4), so that the extrusion hole (10) formed in the drilling rod (4) Extruded through and discharged to the outside of the perforated rod 4. When the cement sludge is discharged to some extent through the extruded hole 10, the user has a predetermined length of the injection tube 16 to the outside of the perforated rod (4) After the withdrawal, the cement sludge is then discharged through the extrusion hole 10. That is, the injection tube 16 must be withdrawn to the upper side as shown in FIG.

그러나, 이와 같이 주입튜브(16)를 천공로드(4)의 상부측으로 인출시키면서 작업을 수행하면 작업시간이 과다하게 소요될 뿐만 아니라, 천공로드(4)에 대해 주입튜브(16)를 인출함에 있어서 정확한 위치까지 인출되었는지를 인지하기가 어려운 단점이 있다.However, if the work is carried out while drawing the injection tube 16 to the upper side of the punching rod 4 as described above, it takes not only excessive work time but also corrects the drawing of the injection tube 16 with respect to the punching rod 4. There is a disadvantage that it is difficult to recognize whether it is withdrawn to position.

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로써, 천공로드내에 각각 길이가 다른 다수의 주입튜브를 내설하여 압출공이 형성된 위치로 정확하게 시멘트 슬러지를 압출할 수 있도록 함으로써 작업시간이 효율적으로 감소될 뿐만 아니라 정확한 주입위치를 유지시킬 수 있도록 한 강관 동시주입 그라우팅 장치 및 그 시공방법을 제공하는데 그 목적이 있다.Thus, the present invention has been devised to solve the problems described above, by inserting a plurality of injection tubes of different lengths in each of the punching rod to precisely extrude the cement sludge to the position where the extrusion hole is formed, working time It is an object of the present invention to provide a steel pipe co-injection grouting apparatus and a construction method thereof that can reduce the efficiency and maintain the precise injection position.

도 1은 종래의 그라우팅 장치의 구성을 도시한 사시도,1 is a perspective view showing the configuration of a conventional grouting device,

도 2는 종래의 강관 동시주입 그라우팅 시공과정을 도시한 도면,Figure 2 is a view showing a conventional steel pipe simultaneous injection grouting construction process,

도 3은 본 발명에 따른 강관 동시주입 그라우팅 장치의 구성을 도시한 측단면도1,Figure 3 is a side cross-sectional view showing the configuration of a steel pipe simultaneous injection grouting apparatus according to the present invention;

도 4는 본 발명에 따른 강관 동시주입 그라우팅 장치의 구성을 도시한 분리사시도,Figure 4 is an exploded perspective view showing the configuration of the steel pipe simultaneous injection grouting apparatus according to the present invention,

도 5는 본 발명에 따른 강관 동시주입 그라우팅 장치의 장착 상태를 도시한 측단면도,Figure 5 is a side cross-sectional view showing a mounting state of the steel pipe simultaneous injection grouting apparatus according to the present invention,

도 6은 본 발명에 따른 강관 동시주입 그라우팅 장치의 구성을 도시한 측단면도2.Figure 6 is a side cross-sectional view showing the configuration of the steel pipe simultaneous injection grouting apparatus according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

32,44,64,90:제 1, 2, 3, 4 파이프, 34,66,92:압출공,32,44,64,90: 1st, 2nd, 3rd, 4th pipe, 34,66,92: Extruder,

36,38,54,68,70,94,96:연결부, 42,58,84,98:밀봉부재,36, 38, 54, 68, 70, 94, 96: connection portion, 42, 58, 84, 98: sealing member,

50,52,56,72,74,76,104,102,100,98:제 1∼10 주입튜브.50, 52, 56, 72, 74, 76, 104, 102, 100, 98: First to 10 injection tubes.

상기한 목적을 달성하기 위한 본 발명에 따른 강관 동시주입 그라우팅 장치는 다수개로 구성되며, 각각 결합되도록 그 양단에 나사선이 각설된 연결부가 제공되며, 그 몸통 외주연에 다수의 압출공이 형성된 파이프와; 상기 파이프의 각 연결부에 게재되어 시멘트 슬러지 압출시 상단으로 시멘트 슬러지가 역류되는 것을 방지하며, 그 중앙에 형성된 관통홀에 연결로드가 게재된 다수의 밀봉부재와; 다수의 연통된 주입유로의 종단위치가 다수의 파이프에 각각 서로 다르게 위치되도록 상기 밀봉부재의 연결로드 양단에 각각 끼워지는 주입튜브와; 상기 최상단의 파이프에 형성된 밀봉부재의 다수개 연결로드에 순차적으로 끼워져 시멘트 슬러지를 각각 상이한 주입유로를 통해 각각의 파이프 내부로 주입시켜 압출공을 통해 외부로 방출시키기 위한 연결로드로 구성됨을 특징으로 한다.Steel pipe co-injection grouting apparatus according to the present invention for achieving the above object is composed of a plurality, the connection is provided with a screw threaded at both ends to be coupled to each other, the pipe is formed with a plurality of extruded holes on the outer periphery; A plurality of sealing members disposed on each connection part of the pipe to prevent the cement sludge from flowing back to the upper end when the cement sludge is extruded, and a connection rod is provided in the through hole formed at the center thereof; An injection tube fitted to both ends of the connecting rod of the sealing member so that the end positions of the plurality of connected injection passages are differently positioned in the plurality of pipes; It is characterized in that it consists of a connecting rod for sequentially inserting a plurality of connecting rods of the sealing member formed in the pipe of the upper end and injecting the cement sludge into each pipe through a different injection passage to discharge through the extrusion hole to the outside .

바람직하게, 나사선이 각설된 상기 연결부는 각 파이프의 양단에 용접에 의해 부착되는 것을 특징으로 한다.Preferably, the connection portion in which the thread is laid out is characterized in that it is attached by welding to both ends of each pipe.

바람직하게, 나사선이 각설된 상기 연결부는 각 파이프의 양단에 일체로 연장되어 형성될 수 있는 것을 특징으로 한다.Preferably, the connecting portion in which the thread is laid out is characterized in that it can be formed integrally extended to both ends of each pipe.

바람직하게, 상기 밀봉부재의 연결로드 양단 외주연에는 톱니형상으로 이루어진 걸림턱이 형성된 것을 특징으로 한다.Preferably, the engaging jaw formed in the sawtooth shape is formed on the outer periphery of both ends of the connecting rod of the sealing member.

한편, 본 발명에 따른 강관 동시주입 그라우팅 시공방법은 각각의 파이프 연결부에 밀봉부재를 위치시키는 과정과; 상기 밀봉부재에 형성된 연결로드에 주입튜브를 삽입하는 과정과; 파이프 연결부를 결합시키는 과정과; 연결튜브를 주입구에 끼워넣고 주입펌프를 구동시키는 과정을 각 주입구별로 순차적으로 행하는 과정으로 이루어진 것을 특징으로 한다.On the other hand, the steel pipe simultaneous injection grouting construction method according to the present invention comprises the steps of placing a sealing member on each pipe connection; Inserting an injection tube into a connection rod formed in the sealing member; Joining pipe connections; Inserting the connecting tube into the inlet and driving the injection pump is characterized in that consisting of a step of sequentially performing for each inlet.

이하, 본 발명을 첨부된 예시도면을 참조하여 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 3은 본 발명에 따른 강관 동시주입 그라우팅 장치의 구성을 도시한 측단면도이다.Figure 3 is a side cross-sectional view showing the configuration of a steel pipe simultaneous injection grouting apparatus according to the present invention.

이 도면에 도시된 바와 같이, 본 발명에 따른 강관 동시주입 그라우팅 장치(30)는 천공로드가 다수개의 파이프로 분할되는 바, 그 천공로드의 종단부에는 제1파이프(32)가 구성된다.제1파이프(32)는 그 일단에 연결부(36)가 제공되며, 그 연결부(36)의 외주연에는 나사선이 각설되고, 그 연결부(36)와 제1파이프(32)는 용접된 용접부(40)를 가진다.As shown in this figure, the steel pipe co-injection grouting device 30 according to the present invention, the perforated rod is divided into a plurality of pipes, the first pipe 32 is configured at the end of the perforated rod. One pipe 32 is provided with a connection portion 36 at one end thereof, a screw thread is angled at the outer circumference of the connection portion 36, and the connection portion 36 and the first pipe 32 are welded weld portions 40. Has

또한, 상기 제1파이프(32)의 연결부(36)에는 제2파이프(44)의 연결부(38)가 체결되는 바, 제2파이프(44)와 연결부(38)의 사이에는 용접된 용접부(46)를 가진다.제2파이프(44)의 연결부(36) 내주연에는 나사선이 각설되어 있다.In addition, the connecting portion 38 of the second pipe 44 is fastened to the connecting portion 36 of the first pipe 32, and the welded portion 46 welded between the second pipe 44 and the connecting portion 38. Threads are squared at the inner circumference of the connecting portion 36 of the second pipe 44.

또, 상기 제1파이프(32)는 그 종단부가 밀폐된 밀폐부(33)를 가지며, 제1파이프(32)와 제2파이프(44)의 외주연에는 다수의 압출공(34)이 형성되어 시멘트 슬러지를 외부로 방출시킬 수 있다.한편, 상기 제1파이프(32)와 제2파이프(44)의 내부를 각각 구획시키기 위한 밀봉부재(42)가 제공되는 바, 그 밀봉부재(42)는 제1파이프(32)와 제2파이프(44)의 연결부 부근에 격벽형태로 게재된다.In addition, the first pipe 32 has a closed portion 33 whose end portion is sealed, and a plurality of extruded holes 34 are formed at the outer periphery of the first pipe 32 and the second pipe 44. The cement sludge can be discharged to the outside. On the other hand, a sealing member 42 for partitioning the interior of the first pipe 32 and the second pipe 44 is provided, and the sealing member 42 is provided. The first pipe 32 and the second pipe 44 are placed in the form of a partition wall in the vicinity of the connection portion.

상기 밀봉부재(42)는 그 중앙에 관통홀이 형성되며, 그 관통홀에는 일정길이의 연결로드(48)가 장착되는 바, 그 연결로드(48)의 일단은 제1파이프(32)의 내부에, 그 타단은 제2파이프(44)의 내부에 장착된다.또한, 상기 연결로드(48)의 양단 외주연에는 각각 톱니형태의 걸림부가 형성되는 바, 그 걸림부에는 각각 제1,2주입튜브(50, 52)가 끼워진다.일단, 제1,2주입튜브(50, 52)가 끼워지면 톱니형태의 걸림부에 의해 제1,2주입튜브(50, 52)가 쉽게 이탈되지 않도록 고정된다.The sealing member 42 has a through hole formed at the center thereof, and a connecting rod 48 having a predetermined length is mounted in the through hole, and one end of the connecting rod 48 is inside the first pipe 32. The other end thereof is mounted inside the second pipe 44. In addition, tooth-shaped locking portions are formed at the outer circumferences of both ends of the connecting rod 48, respectively, and the locking portions have first and second injections, respectively. Tubes 50 and 52 are fitted. First, when the first and second injection tubes 50 and 52 are fitted, the first and second injection tubes 50 and 52 are fixed so as not to be easily detached by the sawtooth engaging portion. do.

도 4는 본 발명에 따른 강관 동시주입 그라우팅 장치의 구성을 도시한 분리사시도이며, 도 5는 본 발명에 따른 강관 동시주입 그라우팅 장치의 장착 상태를 나타내는 측단면도이다.Figure 4 is an exploded perspective view showing the configuration of the steel pipe simultaneous injection grouting apparatus according to the present invention, Figure 5 is a side cross-sectional view showing the mounting state of the steel pipe simultaneous injection grouting apparatus according to the present invention.

이들 도면에 도시된 바와 같이, 본 발명에 따른 강관 동시주입 그라우팅 장치(30)는 제1파이프(32)와, 제2파이프(44), 제3파이프(64), 제4파이프(90)로 그 외관이 이루어져 있으며, 각 파이프(32,44,64,90)가 서로 연결되도록 그 파이프(32,44,64,90)의 양단 외주연과 내주연에는 나사선이 각각 각설된 연결부(36,38,54,68,70,94,96)가 구성된다.As shown in these figures, the steel pipe simultaneous injection grouting apparatus 30 according to the present invention is the first pipe 32, the second pipe 44, the third pipe 64, the fourth pipe 90 Its appearance is made, and the connecting parts 36,38 each of which is threaded at the outer periphery and the inner periphery of both ends of the pipes 32, 44, 64, 90 so that the pipes 32, 44, 64, 90 are connected to each other. , 54, 68, 70, 94, 96.

또한, 각 파이프(32,44,64,90)의 몸통부 외주연에는 각각 시멘트 슬러지를 압출하여 배출시키기 위한 압출공(34,66,92)이 형성된다.In addition, extrusion holes 34, 66, and 92 are formed at the outer periphery of the trunk portion of each pipe 32, 44, 64, and 90 for extruding and discharging the cement sludge, respectively.

한편, 상기 각 파이프(32,44,64,90)의 연결부(36,38,54,68,70,94,96)에 게재되어 시멘트 슬러지의 역류를 방지하기 위한 제1,2,3,4 밀봉부재(42,58,84,106)가 제공되며, 제1밀봉부재(42)에는 제1주입튜브(50)가 그 일단에 끼워져 있으며, 그 타단에는 제1주입구(48)가 형성된다.제1주입튜브(50)는 상기 연결부(36)를 통해 제1파이프(32)의 내부에 삽입되어 위치된다.On the other hand, the first, second, third, fourth to prevent the reverse flow of cement sludge is placed on the connecting portion (36,38,54,68,70,94,96) of each pipe (32,44,64,90) Sealing members 42, 58, 84, and 106 are provided, and a first injection tube 50 is fitted at one end of the first sealing member 42, and a first injection hole 48 is formed at the other end thereof. The injection tube 50 is inserted into and positioned inside the first pipe 32 through the connection portion 36.

제2밀봉부재(58)에는 제2,3주입튜브(52,56)가 그 일단에 끼워져 있으며, 그 타단에는 제2,3주입구(62, 60)가 형성되어져 있다.제2,3 주입튜브(52, 56)는 상기 연결부(54)를 통해 제2파이프(44)의 내부에 삽입되어 위치된다.Second and third injection tubes 52 and 56 are fitted at one end of the second sealing member 58, and second and third injection holes 62 and 60 are formed at the other end thereof. 52 and 56 are inserted and positioned inside the second pipe 44 through the connecting portion 54.

제3밀봉부재(84)에는 제4,5,6주입튜브(72,74,76)가 그 일단에 끼워져 있으며, 그 타단에는 제4,5,6주입구(82,80,78)가 형성된다.제4,5,6 주입튜브(72,74,76)는 상기 연결부(70)를 통해 제3파이프(64)의 내부에 삽입되어 위치된다.Fourth, fifth, and sixth injection tubes 72, 74, and 76 are fitted at one end of the third sealing member 84, and fourth, fifth, and sixth injection holes 82, 80, and 78 are formed at the other end thereof. Fourth, fifth, and sixth injection tubes (72, 74, 76) are inserted into the third pipe 64 through the connection portion 70 is located.

제4밀봉부재(106)에는 제 7,8,9,10 주입튜브(104,102,100,98)가 그 일단에 끼워져 있으며, 그 타단에는 제 7,8,9,10 주입구(114,112,110,108)가 형성된다.제 7,8,9,10 주입튜브(104,102,100,98)는 상기 연결부(96)를 통해 제4파이프(90)의 내부에 삽입되어 위치된다.또한, 상기 제 7,8,9,10 주입구(114,112,110,108)에는 교번적으로 주입펌프(도시 생략)로부터 연결된 연결튜브(120)가 끼워진 상태에서 주입펌프로부터 압출된 시멘트 슬러지가 유입된다.The seventh, eighth, ninth, and tenth injection tubes 104, 102, 100, and 98 are inserted into one end of the fourth sealing member 106, and the seventh, eighth, nineth, and tenth injection holes 114, 112, 110, and 108 are formed at the other end thereof. The 7,8,9,10 injection tubes 104,102,100,98 are inserted into the fourth pipe 90 through the connection portion 96. The 7,8,9,10 injection holes 114,112,110,108 are positioned. ) Is extruded from the cement sludge extruded from the injection pump while the connection tube 120 connected from the injection pump (not shown) is inserted.

이때, 제 1 주입구(48)는 제 2 주입튜브(52)의 종단에 끼워지며, 제 2 주입구(62)는 제 4 주입튜브(72)의 종단에 끼워지고, 제 4 주입구(82)는 제 7 주입튜브(104)의 종단에 끼워져 하나의 주입유로가 형성된다.At this time, the first injection hole 48 is fitted to the end of the second injection tube 52, the second injection hole 62 is fitted to the end of the fourth injection tube 72, the fourth injection hole 82 is 7 is inserted into the end of the injection tube 104 to form a single injection passage.

또한, 제 3 주입구(60)는 제 5 주입튜브(74)의 종단에 끼워지며, 제 5 주입구(80)는 제 8 주입튜브(102)의 종단에 끼워져 또 다른 주입유로가 형성된다.제 6 주입구(78)는 제 9 주입튜브(100)의 종단에 끼워져 또 다른 주입유로를 형성된다.In addition, the third injection hole 60 is fitted to the end of the fifth injection tube 74, the fifth injection hole 80 is fitted to the end of the eighth injection tube 102 to form another injection flow path. The injection port 78 is inserted into the end of the ninth injection tube 100 to form another injection passage.

따라서, 각 주입구(48,62,60,82,80,78)에 해당되는 주입튜브(52,56,72,74,Therefore, injection tubes 52, 56, 72, 74, corresponding to the respective injection holes 48, 62, 60, 82, 80, 78,

76,104,102,100)가 끼워지며, 각 파이프(32,44,64,90)가 각각 연결되면 도 5에 도시된 바와 같은 형태로 그라우팅 장치(30)가 구성된다.즉, 제 1, 2, 3, 4 파이프(32,44,64,90)의 내부까지 각각의 주입유로의 종단부가 위치되어 상기 연결튜브(120)를 제 7, 8, 9, 10 주입구(114,112,110,108)의 순서로 연결하고 주입펌프를 구동시키면 시멘트 슬러지가 제 1, 2, 3, 4 파이프(32,44,64,90)순으로 채워지고, 상기 압출공(34,66,92)을 통해 시멘트 슬러지가 외부로 배출된다.76, 104, 102, 100 are fitted, and when each pipe 32, 44, 64, 90 is connected to each other, the grouting device 30 is configured as shown in FIG. 5. That is, the first, second, third, and fourth pipes When the end of each injection flow path is located to the inside of the (32, 44, 64, 90) is connected to the connecting tube 120 in the order of the 7, 7, 8, 9, 10 inlet (114, 112, 110, 108) and drive the injection pump Cement sludge is filled in the order of the first, second, third and fourth pipes 32, 44, 64 and 90, and the cement sludge is discharged to the outside through the extruded holes 34, 66 and 92.

상기한 주입과정에 따르면, 사용자가 주입튜브를 일정길이 잡아당기고 주입펌프를 구동시켜 시멘트 슬러지를 압출시키고, 다시 일정시간 후에 다시 주입튜브를 잡아당겨야 하는 과정이 필요없게 되므로 매우 신속한 시공이 이루어진다.또한, 비숙련자라도 주입튜브를 인출하는 과정이 필요없으므로 편리하게 시멘트 슬러지를 압출시킬 수 있다.According to the above injection process, the user pulls the injection tube for a certain length, drives the injection pump to extrude the cement sludge, and after a certain time, there is no need to pull the injection tube again. However, even unskilled people can conveniently extrude cement sludge because there is no need to take out the injection tube.

도 6은 본 발명의 다른 실시예에 따른 강관 동시주입 그라우팅 장치의 구성을 도시한 측단면도이다.Figure 6 is a side cross-sectional view showing the configuration of a steel pipe simultaneous injection grouting apparatus according to another embodiment of the present invention.

이 도면에 도시된 바와 같이, 본 발명에 따른 강관 동시주입 그라우팅 장치(30')는 천공로드가 다수개의 파이프로 분할되어 있는 바, 그 천공로드의 종단부에는 제1파이프(32')가 구성된다.제1파이프(32')는 그 일단에 연결부(36')가 일체로 구성되며, 그 연결부(36')의 외주연에는 나사선이 각설되어 있다.As shown in this figure, the steel pipe simultaneous injection grouting device (30 ') according to the present invention, the perforated rod is divided into a plurality of pipes, the end of the perforated rod is composed of a first pipe 32' A connecting portion 36 'is integrally formed at one end of the first pipe 32', and a thread is squared at the outer periphery of the connecting portion 36 '.

또한, 상기 제1파이프(32')의 연결부(36')에는 제2파이프(44')의 연결부(38')가 체결되는 바, 제2파이프(44')와 연결부(38')는 일체로 구성되며, 그 연결부(38')의 내주연에는 나사선이 각설되어 있다.In addition, the connecting portion 38 ′ of the second pipe 44 ′ is fastened to the connecting portion 36 ′ of the first pipe 32 ′, and the second pipe 44 ′ and the connecting portion 38 ′ are integrally formed. The inner periphery of the connecting portion 38 'is threaded.

또, 상기 제1파이프(32')는 그 종단부가 밀폐된 밀폐부(33)를 가지며, 제1파이프(32')와 제2파이프(44')의 외주연에는 다수의 압출공(34)이 형성되어 시멘트 슬러지를 외부로 방출시킬 수 있다.한편, 상기 제1파이프(32')와 제2파이프(44')의 내부를 각각 구획시키기 위한 밀봉부재(42)가 제공되는 바, 그 밀봉부재(42)는 제1파이프(32)와 제2파이프(44)의 연결부 부근에 격벽형태로 게재된다.In addition, the first pipe 32 'has a closed portion 33 whose end portion is sealed, and a plurality of extruded holes 34 are formed at the outer periphery of the first pipe 32' and the second pipe 44 '. The cement sludge can be discharged to the outside. A sealing member 42 is provided for partitioning the interior of the first pipe 32 'and the second pipe 44', respectively. The member 42 is disposed in the form of a partition wall in the vicinity of the connection portion between the first pipe 32 and the second pipe 44.

상기 밀봉부재(42)는 그 중앙에 관통홀이 형성되며, 그 관통홀에는 일정길이의 연결로드(48)가 장착되는 바, 그 연결로드(48)의 일단은 제1파이프(32')의 내부에, 그 타단은 제2파이프(44')의 내부에 장착된다.또한, 상기 연결로드(48)의 양단 외주연에는 각각 톱니형태의 걸림부가 형성되는 바, 그 걸림부에는 각각 제 1, 2 주입튜브(50, 52)가 끼워진다.일단, 제 1, 2 주입튜브(50, 52)가 끼워지게 되면 톱니형태의 걸림부에 의해 제 1, 2 주입튜브(50, 52)가 쉽게 이탈되지 않게 고정된다.The sealing member 42 has a through hole formed at the center thereof, and a connecting rod 48 having a predetermined length is mounted in the through hole, and one end of the connecting rod 48 is formed on the first pipe 32 '. The other end is mounted inside the second pipe 44 '. In addition, the outer peripheral edges of the both ends of the connecting rod 48 are each provided with a sawtooth engaging portion, and the engaging portions of the first and second ends are respectively formed in the first and second ends. 2 Injection tubes 50 and 52 are fitted. Once the first and second injection tubes 50 and 52 are fitted, the first and second injection tubes 50 and 52 are easily detached by the saw-toothed catches. Is fixed.

한편, 본 발명에 따른 강관 동시주입 그라우팅 장치 및 그 시공방법은 단지 상기한 실시예에 한정되는 것이 아니라 그 기술적 요지를 이탈하지 않는 범위내에서 다양한 변경이 가능하다.On the other hand, the steel pipe simultaneous injection grouting apparatus and its construction method according to the present invention is not limited to the above embodiments, but various modifications can be made without departing from the technical gist of the invention.

이상에서 설명한 바와 같이, 본 발명에 따른 강관 동시주입 그라우팅 장치 및 그 시공방법은 사용자가 주입튜브를 일정 길이 잡아당기고 주입펌프를 구동하여 시멘트 슬러지를 압출시키고, 다시 일정시간 후에 다시 주입튜브를 잡아당겨야 하는 과정이 필요없게 되므로 매우 신속한 시공이 이루어진다.또한, 비숙련자라도 주입튜브를 인출하는 과정이 필요없으므로 편리하게 시멘트 슬러지를 압출시킬 수 있는 장점이 있다.As described above, the steel pipe simultaneous injection grouting apparatus and the construction method according to the present invention, the user pulls the injection tube for a certain length and drives the injection pump to extrude the cement sludge, and again after a certain time to pull the injection tube again Since the construction process is not necessary, a very rapid construction is achieved. In addition, even a non-skilled person does not need to take out the injection tube, so there is an advantage that the cement sludge can be conveniently extruded.

Claims (5)

다수개로 구성되며, 각각 결합될 수 있도록 그 양단에 나사선이 각설된 연결부가 제공되며, 그 몸통 외주연에 다수의 압출공이 형성된 파이프와;A plurality of pipes, each of which is provided with a connection threaded at both ends thereof so as to be coupled to each other, the pipe having a plurality of extruded holes formed on an outer circumference of the body; 상기 파이프의 각 연결부에 게재되어 시멘트 슬러지 압출시 상단으로 시멘트 슬러지가 역류하는 것을 방지하며, 그 중앙에 형성된 관통홀에 연결로드가 게재된 다수의 밀봉부재와;A plurality of sealing members disposed on each connection part of the pipe to prevent the cement sludge from flowing back to the upper end when the cement sludge is extruded, and a connection rod is placed in the through hole formed at the center thereof; 다수의 연통된 주입유로의 종단위치가 다수의 파이프에 각각 서로 다르게 위치될 수 있게 상기 밀봉부재의 연결로드 양단에 각각 끼워지는 주입튜브와;An injection tube fitted to both ends of the connecting rod of the sealing member so that the end positions of the plurality of connected injection passages may be differently positioned in the plurality of pipes; 상기 최상단의 파이프에 형성된 밀봉부재의 다수개 연결로드에 순차적으로 끼워져 시멘트 슬러지를 각기 상이한 주입유로를 통해 각각의 파이프 내부로 주입시켜 압출공을 통해 외부로 방출시키기 위한 연결로드로 이루어지며,Inserted into a plurality of connecting rods of the sealing member formed in the uppermost pipe in order to inject the cement sludge into the respective pipes through different injection flow passages to form a connection rod for discharging to the outside through the extrusion hole, 상기 나사선이 각설된 상기 연결부는 각 파이프의 양단에 용접에 의해 부착되며,The connecting portion in which the thread is squared is attached by welding to both ends of each pipe, 상기 나사선이 각설된 상기 연결부는 각 파이프의 양단에 일체로 연장되며,The connecting portion in which the thread is laid out extends integrally at both ends of each pipe, 상기 밀봉부재의 연결로드 양단 외주연에는 톱니형상으로 이루어진 걸림턱이 형성된 것을 특징으로 하는 강관 동시주입 그라우팅 장치.Steel pipe simultaneous injection grouting device characterized in that the engaging jaw formed in the sawtooth formed on the outer periphery of both ends of the connecting rod of the sealing member. 삭제delete 삭제delete 삭제delete 각각의 파이프 연결부에 밀봉부재를 위치시키는 과정과;Positioning a sealing member at each pipe connection portion; 상기 밀봉부재에 형성된 연결로드에 주입튜브를 삽입하는 과정과;Inserting an injection tube into a connection rod formed in the sealing member; 파이프 연결부를 결합시키는 과정과;Joining pipe connections; 연결튜브를 주입구에 끼워넣고 주입펌프를 구동시키는 과정을 각 주입구별로 순차적으로 행하는 과정으로 이루어진 것을 특징으로 하는 강관 동시주입 그라우팅 시공방법.Steel tube simultaneous injection grouting construction method comprising the step of inserting the connecting tube into the inlet and driving the injection pump sequentially for each inlet.
KR10-2002-0060979A 2002-10-07 2002-10-07 Reinforced steel pipe one shot grouting apparatus and method of the same KR100468113B1 (en)

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