KR100395839B1 - Sheet Pile and Construction Method thereof - Google Patents

Sheet Pile and Construction Method thereof Download PDF

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Publication number
KR100395839B1
KR100395839B1 KR10-2000-0052644A KR20000052644A KR100395839B1 KR 100395839 B1 KR100395839 B1 KR 100395839B1 KR 20000052644 A KR20000052644 A KR 20000052644A KR 100395839 B1 KR100395839 B1 KR 100395839B1
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South Korea
Prior art keywords
pile
protrusion
board
board pile
steel pipe
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KR10-2000-0052644A
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Korean (ko)
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KR20020019662A (en
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백남진
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홍지기술산업주식회사
백남진
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Priority to KR10-2000-0052644A priority Critical patent/KR100395839B1/en
Publication of KR20020019662A publication Critical patent/KR20020019662A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • E02D5/28—Prefabricated piles made of steel or other metals
    • E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

Abstract

본 발명은 널말뚝을 항타기로 항타하여 시공하기 곤란한 전석층이나 암반층에 천공기를 이용하여 용이하게 널말뚝을 시공할 수 있는 전석층 및 암반층용 강관 널말뚝 및 그의 시공방법에 관한 것으로, 상하로 길이를 가지며 단면상 원통형상으로 형성되는 원통부(10)와, 상기 원통부(10)의 일측 외면에 돌출 형성되는 돌출부(20)와, 상기 원통부(10)의 타측에 이웃하는 널말뚝의 돌출부(20)를 결합할 수 있는 결합부(30)로 구성되는 것에 있어서, 상기 결합부(30)는 원통부(10)의 내주면으로 오목하게 절곡 형성되는 오목부(30a)로 구성됨을 특징으로 하는 것이다.The present invention relates to a steel pipe board pile for the stone layer and rock bed and a construction method thereof, which can be easily installed by using a perforator to the stone layer or rock layer that is difficult to install by driving the pile pile, and has a length up and down Cylindrical portion 10 is formed in a cylindrical shape, a protrusion 20 is formed to protrude on one side of the outer surface of the cylindrical portion 10, and the protrusion 20 of the board pile adjacent to the other side of the cylindrical portion 10 In the configuration of the coupling portion 30, the coupling portion 30 is characterized in that it is composed of a concave portion (30a) is formed concave bent to the inner peripheral surface of the cylindrical portion (10).

Description

전석층 및 암반층용 강관 널말뚝 및 그의 시공방법{Sheet Pile and Construction Method thereof}Sheet pile and construction method for all stone and rock layers

본 발명은 널말뚝을 항타기로 항타하여 시공하기 곤란한 전석층이나 암반층에 천공기를 이용하여 용이하게 널말뚝을 시공할 수 있는 전석층 및 암반층용 강관 널말뚝 및 그의 시공방법에 관한 것이다.The present invention relates to a steel pipe board pile for the gypsum and rock bed and the construction method that can be easily installed by using a perforator in the stone layer or rock layer difficult to install by driving the pile pile.

종래의 강관 널말뚝은 도 1에서와 같이, 상하로 길이를 가지며 단면상 원통형으로 형성되는 원통부(3)와, 상기 원통부의 일측 외면에 하나의 금속을 용접시켜 돌출 형성되는 돌출부(4) 상기 원통부의 타측 외면에 2개의 금속을 일정 간격으로 용접시켜 형성되는 결합부(5)로 구성된다.Conventional steel pipe piles, as shown in Figure 1, the cylindrical portion 3 has a vertical length and has a cylindrical shape in cross section, and a protrusion (4) formed by welding one metal to the outer surface of the cylindrical portion (4) the cylindrical portion It consists of a coupling part 5 formed by welding two metals on the other outer surface at regular intervals.

이렇게 구성되는 종래의 널말뚝은 항타기로 직접 항타하여 연약지반에 설치하게 된다. 도 2에서와 같이, 먼저 시공되는 널말뚝(2)의 돌출부(4)와 결합부(5)들이 작업진행 방향으로 향하게 설치하고, 나중 시공되는 널말뚝(2a)의 돌출부(4)를 선시공한 널말뚝(2)의 결합부(4)에 끼워 맞춘 후 항타하여 박는다. 이러한 방법으로 각 널말뚝들을 연결하여 연속적으로 시공해 나가는 것이다.Conventional board piles configured as described above are directly driven by the driving machine and installed on the soft ground. As shown in Figure 2, first installed the projecting portion 4 and the coupling portion 5 of the board pile (2) to be installed in the working progress direction, the board pile (3) pre-installed the projecting portion (4) of the board pile (2a) Fit into the coupling part (4) of 2) and drive it. In this way, each board pile is connected and constructed continuously.

상기한 종래의 것으로 설치할 경우 이웃하는 널말뚝끼리 서로 연결되어 있으므로 지하수를 차수할 수 있다. 그러나, 종래의 것은 항타기로 항타하여 박는 것이므로 지층이 전석층이거나 암반층일 경우에는 시공이 불가능하다.When the conventional ones are installed, neighboring board piles are connected to each other so that groundwater can be ordered. However, since the conventional one is driven by driving, the construction is not possible when the strata are stone layers or rock layers.

한편, 상기한 종래의 널말뚝을 박기 위해 천공비트를 장착한 천공기로 구멍을 천공하여 박는 것을 생각할 수도 있으나, 원통부(3) 외면에 돌출부(4)가 돌출되어 있어 천공비트를 작동시킬 수 없어 천공작업이 곤란하다.On the other hand, in order to drill the above-mentioned conventional board piles can be considered to drill the hole with a perforator equipped with a perforated bit, but the perforated part 4 protrudes on the outer surface of the cylindrical part 3, so that the perforated bit cannot be operated. The work is difficult.

이에 본 발명의 목적은 연약지반은 물론 전석층 또는 암반층에도 천공이 가능하도록 천공비트를 장착한 천공기로 천공할 수 있는 전석층 및 암반층용 강관 널말뚝 및 그의 시공방법을 제공하는데 있다.Accordingly, an object of the present invention is to provide a steel plate board pile and a method for constructing a rock layer and a rock layer which can be drilled by a perforator equipped with a punching bit so as to be able to drill not only soft ground but also a rock layer or a rock layer.

도 1은 종래의 강관 널말뚝을 나타내는 사시도1 is a perspective view showing a conventional steel pipe sheet pile

도 2는 종래의 강관 널말뚝의 설치상태를 나타내는 평면도Figure 2 is a plan view showing an installation state of a conventional steel pipe sheet pile

도 3a 및 3b는 본 발명에 따른 강관 널말뚝을 나타내는 사시도 단면도Figure 3a and 3b is a perspective sectional view showing a steel pipe board pile according to the present invention

도 4는 본 발명에 따른 강관 널말뚝의 시공된 상태를 나타내는 평면도Figure 4 is a plan view showing a constructed state of the steel pipe board pile according to the present invention

도 5는 본 발명에 따른 강관 널말뚝을 천공기에 결합한 상태를 나타내는 예시도5 is an exemplary view showing a state coupled to the steel pipe board pile according to the present invention perforator

도 6은 본 발명에 따른 강관 널말뚝의 시공하기 위한 천공상태를 나타내는 예시도Figure 6 is an exemplary view showing a punched state for the construction of the steel pipe pile pile according to the present invention

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1, 1a: 강관형널말뚝 1c:말뚝공1, 1a: Steel pipe sheet pile 1c: Pile ball

10:원통부 11:센터가이드10: Cylindrical section 11: Center guide

20:돌출부 30:결합부20: protrusion part 30: coupling part

30a:오목부 40:천공기30a: recessed part 40: perforator

41:천공비트 42:해머41: Drill bit 42: Hammer

H,h: 돌출높이H, h: protrusion height

이하, 본 발명의 기술적 구성을 상세히 설명하면 다음과 같다.Hereinafter, the technical configuration of the present invention in detail.

본 발명의 전석층 및 암반층용 강관 널말뚝은 상하로 길이를 가지며 단면상 원통형상으로 형성하는 원통부(10)와, 상기 원통부(10)의 일측 외면에으로 돌출하는 돌출부(20)와, 상기 원통부(10)의 타측에 이웃하는 널말뚝의 돌출부(20)를 결합할 수 있는 결합부(30)로 구성되는 점에서는 종래의 기술적 개념과 별다를 바가 없다.Steel tube board piles for the stone layer and rock layer of the present invention is a cylindrical portion 10 having a vertical length and has a cylindrical shape in cross section, and a protrusion 20 protruding to one side of the cylindrical portion 10 and the cylinder. It is not different from the conventional technical concept in that it is composed of a coupling part 30 that can couple the protrusion 20 of the neighboring board pile to the other side of the part 10.

다만, 본 발명은 도3a 및 도3b에서와 같이, 결합부(30)가 원통부(10)의 내주면으로 오목하게 절곡 형성되는 오목부(30a)로 구성됨을 특징으로 하는 것이다.However, the present invention is characterized in that the coupling portion 30 is composed of a concave portion (30a) is formed concave bent to the inner peripheral surface of the cylindrical portion 10, as shown in Figures 3a and 3b.

여기에서, 결합부(30)가 원통부(10)의 내주면으로 오목부(30a)로 형성하는 이유는 천공비트(41)를 장착한 천공기(40)로 말뚝공(1c)을 천공할 수 있기 위함이다(도5,6참조). 천공기(40)로 말뚝공(1c)을 천공해야만 하는 이유는 연약지반은 항타기로 박아 넣을 수 있어 별 문제가 없으나, 항타기로 천공이 곤란한 지층인 전석층이나 암반층을 수월하게 천공하기 위해 천공비트를 장착한 천공기를 사용하는 것이다.Here, the reason why the coupling portion 30 is formed as the concave portion 30a on the inner circumferential surface of the cylindrical portion 10 is that the pile hole 1c can be drilled by the drilling machine 40 equipped with the drilling bit 41. This is for the purpose (see Figs. 5 and 6). The reason for having to drill the pile hole 1c with the perforator 40 is that there is no problem because the soft ground can be driven by anti-taking, but the perforation bit is used to easily perforate the gypsum or rock layer, which is difficult to perforate by anti-taking. It is using a perforator installed.

도 3b에서와 같이 본 돌출부(20)는 단면상으로 머리와 길이부를 갖는 "T"자형에 가까운 형태로 형성하고 있으며, 오목부(30a)는 단면상으로 영어 알파벳의 "C"자형에 가까운 채널형으로 형성하고 있다. 이는 돌출부(20)가 오목부(30a)에 끼워진 후 빠지지 않도록 하는 장점을 갖는다(도4참조). 돌출부(20)를 형성하는 방법은 머리와 길이부를 갖는 "T"자형의 금속판을 원통부(10)의 일측 외면에 상하로 용접하여 형성할 수 있다. 또한 오목부(30a)를 형성하는 방법은 원통부(10)의 타측 일부를 상하로 절개해 내고 채널형의 금속 양 측단부를 절개해 낸 자리 내면에 용접시시키거나 혹은 절곡작업에 의해 형성할 수 있다.As shown in Fig. 3b, the protrusion 20 is formed in a cross-sectional shape close to a "T" shape having a head and a length, and the concave portion 30a has a channel shape close to the "C" shape of the English alphabet in cross section. Forming. This has the advantage that the protrusion 20 does not fall out after being fitted into the recess 30a (see Fig. 4). The method of forming the protruding portion 20 may be formed by welding a “T” shaped metal plate having a head and a length portion up and down on one outer surface of the cylindrical portion 10. In addition, the method of forming the concave portion 30a may be performed by cutting a portion of the other side of the cylindrical portion 10 up and down and welding the inner surface of the seat cut out of both channel end metal portions or by bending. Can be.

나아가, 본 널말뚝은 도 3a,b에서와 같이, 원통부(10)의 하부 내주면에 1쌍의 센터가이드(11)를 형성하는 것이 바람직하다. 이 때 1쌍의 센터가이드(11)의 위치 및 돌출높이(H)는 천공기의 해머(42)를 삽입했을 경우에 오목부(30a)쪽으로 약간 치우치도록 설정하는 것이 필요하다.In addition, it is preferable that the bone pile is formed with a pair of center guides 11 on the lower inner circumferential surface of the cylindrical portion 10, as shown in Figure 3a, b. At this time, it is necessary to set the position of the pair of center guides 11 and the protrusion height H so as to be slightly biased toward the recessed part 30a when the hammer 42 of the punching machine is inserted.

1쌍의 센터가이드(11)의 위치는 단면상으로 볼때 오목부(30a)와 정삼각형에 가까운 형태를 이룰 수 있는데, 이 경우에는 1쌍의 센터가이드(11)의 돌출높이(H)가 오목부(30a)의 돌출높이(h) 보다 좀더 크게 형성하는 것이 필요하다. 이는 도 6에서와 같이, 센터가이드(11)의 돌출높이(H)가 오목부(30a)의 돌출높이(h) 보다 크게 형성함으로써 천공기의 해머(42)가 오목부(30a)쪽으로 약간 치우치도록 하여 말뚝공(1c)을 편심되게 천공하기 위함이다. 따라서 말뚝공(1c)을 오목부(30a)쪽으로 약간 편심되게 천공함으로서 천공비트(41)가 먼저 시공된 널말뚝(1)을 손상하지 않고 원활하게 천공작업을 수행할 수 있다.The pair of center guides 11 may have a shape close to the concave portion 30a and an equilateral triangle when viewed in cross section. In this case, the protrusion height H of the pair of center guides 11 is the concave portion ( It is necessary to form larger than the protrusion height h of 30a). As shown in FIG. 6, the protrusion height H of the center guide 11 is larger than the protrusion height h of the recess 30a so that the hammer 42 of the boring machine is slightly biased toward the recess 30a. This is to perforate the pile hole (1c) eccentrically. Therefore, by drilling the pile hole (1c) slightly eccentrically toward the concave portion (30a) it can be carried out smoothly without damaging the board pile (1) in which the drilling bit 41 was first constructed.

이하 본 널말뚝(1)을 천공비트(41)가 장착된 천공기(40)에 결합하여 지반 천공과 동시에 널말뚝을 설치하는 방법을 설명한다.Hereinafter, a method of installing the board pile at the same time as the ground drilling by coupling the board pile 1 to the drilling machine 40 equipped with the drilling bit 41 is described.

도 5에서와 같이, a) 관입하는 강관형 널말뚝(1)의 외경보다 크게 천공되도록 편심되게 결합된 천공비트(41)를 가진 천공기(40)의 해머(42)를 널말뚝(1) 내부에 삽입하되, 그 널말뚝 내주면에 돌출높이(H,h)가 서로 다른 오목부(30a) 및 1쌍의 센터가이드(11) 사이에 삽입한다.As shown in FIG. 5, a) the hammer 42 of the puncher 40 having the punching bits 41 eccentrically coupled to be drilled larger than the outer diameter of the penetrating steel pipe-type board pile 1 is inserted into the board pile 1. However, it is inserted between the concave portion 30a and the pair of center guides 11 having different protrusion heights H and h on the inner surface of the pile.

b) 천공기(40)를 작동하여 말뚝공(1c)은 작업 진행방향(오목부가 형성된 방향)쪽으로 편심되게 천공한다. 그러나 관입하는 널말뚝(1)은 중심을 향하여 관입한다(도6참조).b) By operating the puncher 40, the pile hole 1c drills eccentrically toward the working progress direction (direction in which the recess is formed). However, the penetrating board pile 1 penetrates toward the center (see Fig. 6).

c) 먼저 관입된 널말뚝(1)의 오목부(30a)가 형성된 측에 상기와 동일하게 천공기(40) 및 널말뚝(1)을 결합하여 연속적으로 천공과 동시에 관입하되, 나중 관입하는 널말뚝(1a)의 돌출부(20)를 먼저 관입한 널말뚝(1)의 오목부(30a)에 끼워진 채 관입해 나가는 것이다.c) First of the penetration of the board pile (1a) to the side formed with the concave portion (30a) of the penetration pipe penetration and the same as the above, and continuously penetrates and drills at the same time, the later pile penetration (1a) Is inserted into the recessed portion 30a of the board pile 1 into which the protrusion 20 is first introduced.

이를 좀더 구체적으로 설명하면 도 5에서와 같이, 천공기(40)의 해머(42)는 널말뚝(1)의 오목부(30a) 및 센터가이드(11) 사이에 끼워진다. 이때 해머(42) 하부에 장착된 천공비트(41)는 편심되게 설치하여 천공비트(41)로 천공되는 말뚝공(1c)의 직경은 널말뚝(1)의 외경보다 크게 천공된다(도6참조).More specifically, as shown in FIG. 5, the hammer 42 of the puncher 40 is sandwiched between the recess 30a and the center guide 11 of the board pile 1. At this time, the drilling bit 41 mounted below the hammer 42 is eccentrically installed so that the diameter of the pile hole 1c drilled by the drilling bit 41 is larger than the outer diameter of the board pile 1 (see FIG. 6). .

또한 해머(42)가 널말뚝(1)의 오목부(30a) 및 센터가이드(11) 사이에 끼워지되 센터가이드(11)의 돌출높이(H)가 오목부(30a)의 돌출높이(h) 보다 약간 크므로오목부(30a)쪽으로 약간 치우친 상태로 끼워진다. 따라서 해머(42) 하부에 장착된 천공비트(41)에 의해 천공되는 말뚝공(1c)은 작업이 진행되는 방향 즉, 널말뚝(1)의 오목부(30a)쪽으로 약간 치우친 상태로 천공된다. 여기서 말뚝공(1c)이 오목부(30a)쪽으로 약간 치우치게 천공하는 것은 천공비트(41)가 회전할 때 먼저 시공한 널말뚝(1)을 손상하지 않도록 하기 의한 것이다.In addition, the hammer 42 is sandwiched between the recess 30a and the center guide 11 of the pile pile 1, but the protrusion height H of the center guide 11 is larger than the protrusion height h of the recess 30a. Since it is slightly larger, it is fitted in a slightly biased state toward the recessed portion 30a. Therefore, the pile hole 1c drilled by the drilling bit 41 mounted to the lower portion of the hammer 42 is drilled in a slightly biased direction toward the concave portion 30a of the board pile 1. Here, the pile holes 1c are drilled slightly to the concave portion 30a so as not to damage the first pile pile 1 constructed when the drilling bit 41 rotates.

한편, 본 발명에서 사용되는 천공기(40)는 본 출원인이 국내 실용신안등록출원 공개번호 1999-35430호로서 선출원한 기술이다.On the other hand, the punching machine 40 used in the present invention is a technology that the applicant has previously filed as a Korean Utility Model Application Publication No. 1999-35430.

이와 같이 본 발명의 강관형 널말뚝은 원통부(10)의 내주면으로 오목하게 절곡 형성되는 오목부(30a)를 형성함으로서, 천공비트를 장착한 천공기를 사용할 수 있어 전석층 또는 암반층에도 시공이 가능한 효과를 갖는다.As described above, the steel pipe-type sheet pile according to the present invention forms a concave portion 30a that is concavely bent to the inner circumferential surface of the cylindrical portion 10, so that a perforator equipped with a perforation bit can be used, so that it can be applied to a stone or rock layer. Has

Claims (4)

삭제delete 삭제delete 상하로 길이를 가지며 단면상 원통형상으로 형성되는 원통부(10)와, 상기 원통부(10)의 일측 외면에 돌출 형성되고 단면상으로 영어 알파벳의 "T"자형에 가까운 형상으로 형성되는 돌출부(20)와, 상기 원통부(10)의 타측에 이웃하는 널말뚝의 돌출부(20)를 결합할 수 있도록 상기 원통부(10)의 내주면으로 오목부(30a)가 오목하게 형성되는 결합부(30)를 포함하는 강관형 널말뚝에 있어서,A cylindrical portion 10 having a length up and down and having a cylindrical shape in cross section, and a protrusion 20 formed protruding on one outer surface of the cylindrical portion 10 and having a shape close to the "T" shape of the English alphabet in cross section. And a coupling part 30 in which a recess 30a is concavely formed on the inner circumferential surface of the cylindrical part 10 so as to couple the protrusion 20 of the board pile adjacent to the other side of the cylindrical part 10. In steel pipe board pile, 상기 원통부(10)의 하부 내주면에 상기 오목부(30a)와 단면상으로 삼각형태를 이루는 위치에 1쌍의 센터가이드(11)를 돌출 형성시키고, 그 1쌍의 센터가이드(11)의 돌출높이(H)는 오목부(30a)의 돌출높이(h) 보다 더 크게 형성되게 함을 특징으로 하는 전석층 및 암반층용 강관형 널말뚝.A pair of center guides 11 are formed on the lower inner circumferential surface of the cylindrical portion 10 at a position triangular in cross section with the concave portion 30a, and the protruding height of the pair of center guides 11 is formed. (H) is a steel pipe-type board pile for stone and rock layers characterized in that it is formed larger than the height of the protrusion (h) of the recess (30a). 관입하는 강관형 널말뚝(1)의 외경보다 크게 천공되는 천공비트(41)를 가진 천공기(40)의 해머(42)를 널말뚝(1) 내부에 삽입하되 그 널말뚝 내주면에돌출높이(H,h)가 서로 다른 오목부(30a) 및 1쌍의 센터가이드(11) 사이에 삽입하고,Insert the hammer 42 of the perforator 40 with the punching bit 41 drilled larger than the outer diameter of the steel pipe-type board pile 1 to penetrate into the board pile 1, and the height of the protrusion on the inner surface of the board pile (H, h). Is inserted between the different recesses 30a and the pair of center guides 11, 상기 천공기(40)를 작동하여 말뚝공(1c)말뚝공(1c)진행방향(오목부가 형성된 방향)쪽으로 편심되게 천공하고 관입하는 널말뚝(1)은 중심을 향하여 관입하고,By operating the perforator 40, the pile pile (1) for perforating and penetrating eccentrically toward the pile hole (1c) pile hole (1c) progress direction (the direction in which the recess is formed) is introduced into the center, 상기 먼저 관입된 널말뚝(1)의 오목부(30a)가 형성된 측에 상기와 동일하게 천공기(40) 및 널말뚝(1)을 결합하여 천공하면서 관입하되, 나중 관입하는 널말뚝(1a)의 돌출부(20)를 먼저 관입한 널말뚝(1)의 오목부(30a)에 끼워진 채 관입해 나감을 특징으로 하는 전석층 및 암반층용 강관형 널말뚝의 시공방법.In the same way as above, the penetration of the punching machine 40 and the board pile 1 is formed in the concave portion 30a of the board pile 1 inserted therein, and the penetration is carried out, but the protrusion 20 of the board pile 1a penetrated later. ) The method of constructing a steel pipe-type board pile for the gypsum and rock bed characterized in that the pipe is inserted into the recess (30a) of the board pile (1) first penetrated.
KR10-2000-0052644A 2000-09-06 2000-09-06 Sheet Pile and Construction Method thereof KR100395839B1 (en)

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