KR100856716B1 - Combine structure for a sectional manhole - Google Patents

Combine structure for a sectional manhole Download PDF

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Publication number
KR100856716B1
KR100856716B1 KR1020080001541A KR20080001541A KR100856716B1 KR 100856716 B1 KR100856716 B1 KR 100856716B1 KR 1020080001541 A KR1020080001541 A KR 1020080001541A KR 20080001541 A KR20080001541 A KR 20080001541A KR 100856716 B1 KR100856716 B1 KR 100856716B1
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South Korea
Prior art keywords
casing
seating
coupling
reinforcing bars
manhole
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KR1020080001541A
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Korean (ko)
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손종섭
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(주) 대화레이져
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/121Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the connection between shaft elements, e.g. of rings forming said shaft
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0026Metals
    • E02D2300/0029Steel; Iron
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/20Miscellaneous comprising details of connection between elements

Abstract

A coupling structure of a prefabricated manhole is provided to increase convenience of assemblage and coupling strength by exposing reinforcing bars outward to the lower part of a casing of the upper floor and the upper part of a casing of the lower floor, and coupling to the reinforcing bars using a turnbuckle. A coupling structure of a prefabricated manhole comprises a lower casing(110), a middle casing(120), and an upper casing(130), wherein reinforcing bars(140) are exposed to the outer circumferential surface at the contact surface of the casings between upper and lower floors, and a fastening turnbuckle(150) is coupled to the exposed reinforcing bars.

Description

조립식 맨홀의 결합구조{Combine structure for a sectional manhole}Combined structure for a sectional manhole
본 발명은 맨홀에 관한 것으로, 더욱 상세하게는 하부케이싱, 중간케이싱 및 상부케이싱으로 구성된 조립식 맨홀의 상하층간 결합 구조가 간단하면서도 결합력이 우수한 조립식 맨홀의 결합구조에 관한 것이다.The present invention relates to a manhole, and more particularly, to a coupling structure of a prefabricated manhole having a simple but excellent coupling force between the upper and lower layers of the assembled manhole composed of a lower casing, an intermediate casing, and an upper casing.
지하에 매설되는 조립식 맨홀은 일반적으로 도 1에서 보는 바와 같이 측벽에 관 연결구멍이 형성되어 통신케이블 및 배관 등과 같은 관(20)들이 접속되는 하부케이싱(12)과, 하부케이싱(12)의 상면에 얹혀져 결합되는 적어도 하나 이상의 중간케이싱(11)과, 중간케이싱(11)의 상면에 결합되고 그 상부면상에 맨홀뚜껑이 결합되는 출입구가 형성되는 상부케이싱(10)으로 구성된다.The prefabricated manhole buried underground has a lower casing 12 to which pipe connection holes are formed in the sidewalls to connect pipes 20 such as communication cables and pipes, and an upper surface of the lower casing 12, as shown in FIG. At least one intermediate casing 11 mounted on and coupled to the upper casing 10 is coupled to the upper surface of the intermediate casing 11 and the upper casing 10 is formed with a doorway to which a manhole cover is coupled.
이러한 하부케이싱(12), 중간케이싱(11) 및 상부케이싱(10)은 조립되기전 미리 성형된 후 서로 적층되고, 상하층간 접촉부위에 패킹부재(15)를 삽입하여 누수를 방지하도록 마련되었었다. 이때, 패킹부재(15)는 상측의 케이싱(10, 11)이 워낙 중량체이므로 특별한 결합수단이 없는 상태로 사용되어 왔으나, 이 방법에 문제가 자주 발생되어 상하층간 접촉부위에 결합수단을 고려하는 방안이 모색되었다.The lower casing 12, the intermediate casing 11, and the upper casing 10 are pre-molded before being assembled and then laminated to each other, and the packing member 15 is inserted into upper and lower contact portions to prevent leakage. At this time, the packing member 15 has been used in the state that there is no special coupling means because the upper casing (10, 11) is a heavy body, but the problem occurs frequently in this method to consider the coupling means in the contact between the upper and lower layers The room was sought.
도 2는 이러한 케이싱의 상하층간 결합수단의 일예를 나타낸 것이다.Figure 2 shows an example of the upper and lower interlayer coupling means of such a casing.
도 2를 참고하면, 종래의 조립식 맨홀의 결합구조는 하부케이싱(12) 또는 중간케이싱(11)의 상부면상에 상측으로 돌출되는 고장력볼트(30)를 원주방향으로 다수개 매설시키고, 중간케이싱(11) 또는, 상부케이싱(10)의 하부면상에 상기 고장력볼트(30)들이 관통되는 다수의 장착공(31)을 형성시킨다. 이때, 중간케이싱(11) 또는 상부케이싱(10)의 하부측 외주면상에는 상기 장착공(31)이 외부로 노출되도록 움푹패인 안착부(32)를 형성시킨다. 따라서 장착공(31)으로 관통된 고장력볼트(30)들에 안착부(32)를 통해 결합너트(33)를 체결시켜 상하층간 케이싱을 결합시키게 된다.Referring to Figure 2, the conventional coupling structure of the prefabricated manhole is a plurality of high tension bolts 30 protruding upward on the upper surface of the lower casing 12 or the middle casing 11 in the circumferential direction, the intermediate casing ( 11) Or, on the lower surface of the upper casing 10 to form a plurality of mounting holes 31 through which the high tension bolts 30 pass. At this time, on the lower outer peripheral surface of the intermediate casing 11 or the upper casing 10 to form a recessed seating portion 32 so that the mounting hole 31 is exposed to the outside. Therefore, the coupling nut 33 is coupled to the high tension bolts 30 penetrated by the mounting hole 31 through the seating portion 32 to couple the upper and lower casings.
그러나 상기와 같은 종래의 맨홀 결합구조는 상하층간 결합력이 좋은 것은 인정하나, 결합을 위해 상당한 주의를 요하게 되는 문제가 발생되었다.However, while the conventional manhole coupling structure is recognized that the coupling force between the upper and lower layers is good, there is a problem that requires considerable attention for the coupling.
즉, 상층의 중간케이싱(11)이나 상부케이싱(10)을 하층의 하부케이싱(12)이나 중간케이싱(11)에 얹기 위해서는 돌출된 고장력볼트(30)와 장착공(31)을 정확하게 일치시켜야 하는데, 상부케이싱(10)이나 중간케이싱(11)이 상당한 중량체이므로 크레인으로 작업시 고장력볼트(30)가 상층의 케이싱에 걸려 휘어지게 되는 일이 빈번하여 원활한 작업이 이어지지 못하게 되는 문제점이 있어왔다.That is, in order to place the upper casing 11 or the upper casing 10 on the lower casing 12 or the middle casing 11 of the lower layer, the protruding high tension bolt 30 and the mounting hole 31 must be exactly matched. Since the upper casing 10 or the intermediate casing 11 is a substantial weight body, the high tension bolt 30 is frequently caught by the upper casing and bent when working with a crane, thereby preventing smooth work from continuing.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 상층의 케이싱 하부와 하층의 케이싱 상부에 철근을 외부로 노출시키고, 이 철근에 턴버클을 이용해 서로 결합시켜주는 구조를 채택하여 보다 편리한 조립성과 결합력이 증대될 수 있는 구조를 제공하는데 있다.The present invention has been made to solve the above problems, the upper casing lower and upper casing upper reinforcing bar exposed outside, adopting a structure that is coupled to each other using a turnbuckle to the reinforcement more convenient assembly performance It is to provide a structure in which the bonding force can be increased.
상기와 같은 과제를 해결하기 위해 본 발명은,The present invention to solve the above problems,
하부케이싱, 중간케이싱 및 상부케이싱을 포함하는 통상의 조립식 맨홀의 결합구조에 있어서,In the combined structure of a conventional prefabricated manhole comprising a lower casing, an intermediate casing and an upper casing,
케이싱들의 접촉부위 상하부에는 외주면을 따라 적어도 두쌍 이상의 철근들이 돌출형성되고, 각 쌍의 철근들에는 턴버클이 체결되는 조립식 맨홀의 결합구조를 제공한다.At least two pairs of reinforcing bars protrude along the outer circumferential surface of the upper and lower contact portions of the casings, and each pair of reinforcing bars provides a coupling structure of a prefabricated manhole to which a turnbuckle is fastened.
이때, 돌출된 철근의 주위에는 케이싱들의 접촉부위를 향해 연장되는 안착부가 됨이 바람직하다.At this time, it is preferable that the surrounding portion of the protruding reinforcement is a seating portion extending toward the contact portion of the casings.
그리고 철근들은 안착부의 좌우측면에서 연장되어 부채꼴 형상으로 형성될 수 있다.The reinforcing bars may extend from the left and right sides of the seating portion to form a fan shape.
또는, 철근들은 안착부의 가운데 면상에서 수직하게 돌출되어 "U"자 형태로 둥그렇게 형성될 수도 있다.Alternatively, the reinforcing bars may protrude vertically on the center surface of the seating portion and be roundly formed in a “U” shape.
이때, 철근의 돌출높이는 안착부의 두께보다 같거나 작음이 바람직하다.At this time, the protruding height of the reinforcing bar is preferably equal to or smaller than the thickness of the seating portion.
전술한 바와 같이 본 발명에 따른 맨홀의 결합구조는 노출시키는 철근과 턴버클에 의해 상하층간 케이싱의 결합시 종래기술에 비해 큰 주의력을 필요로 하지 않으면서도 편리하게 조립할 수 있는 혁신적인 맨홀의 결합구조가 돗보이는 장점이 있다.As described above, the coupling structure of the manhole according to the present invention is an innovative manhole coupling structure that can be conveniently assembled without requiring greater attention compared to the prior art when combining the casing between the upper and lower layers by rebar and turnbuckle to expose. There is a visible advantage.
이하, 첨부된 도면들을 참조하여 본 발명의 바람직한 실시예에 따른 조립식 맨홀의 결합구조에 대해 설명한다.Hereinafter, with reference to the accompanying drawings will be described a coupling structure of the prefabricated manhole according to an embodiment of the present invention.
도 3은 본 발명에 따른 조립식 맨홀의 결합구조를 보인 사시도이고, 도 4는 도 3의 A-A선을 따라 도시한 단면도이다.Figure 3 is a perspective view showing a coupling structure of the prefabricated manhole according to the invention, Figure 4 is a cross-sectional view taken along the line A-A of FIG.
도 3 및 도 4를 참고하면, 본 발명에 따른 조립식 맨홀의 기본적인 결합구조는 종래와 마찬가지로 하부케이싱(110)과, 중간케이싱(120)과, 상부케이싱(130)으로 구성되며, 상하층간 케이싱(110, 120, 130)들의 접촉부위의 외주면상에 철근(140)이 노출되며, 이 노출된 철근(140)들에 체결용 턴버클(150)이 결합된다.3 and 4, the basic coupling structure of the prefabricated manhole according to the present invention is composed of a lower casing 110, an intermediate casing 120, and an upper casing 130, as in the prior art, the upper and lower casing ( Rebar 140 is exposed on the outer circumferential surface of the contact portion of the 110, 120, 130, the fastening turnbuckle 150 is coupled to the exposed rebar 140.
먼저, 하부케이싱(110)의 상부측 외주면상과, 중간케이싱(120)의 하부측 및 상부측 외주면상과, 상부케이싱(130)의 하부측 외주면상에는 안쪽으로 움푹패인 안착부(160)가 형성된다. 이때, 안착부(160)는 각 케이싱(110, 120, 130)들의 상단 또는 하단으로 연장되도록 형성되어 서로 맞닿는 안착부(160)들이 서로 연통되게 형성된다.First, on the upper outer peripheral surface of the lower casing 110, on the lower and upper outer peripheral surface of the intermediate casing 120, and on the lower outer peripheral surface of the upper casing 130, a recessed portion 160 recessed inward is formed. do. At this time, the mounting portion 160 is formed to extend to the top or bottom of each of the casing (110, 120, 130) is formed so that the mounting portion 160 in contact with each other is in communication with each other.
여기에서 안착부(160)는 상향안착부(160a)와 하향안착부(160b)로 구분하여 설명한다. 즉, 상향안착부(160a)는 중간케이싱(120)의 상부측, 그리고 하부케이싱(110)의 상부측 안착부이고, 하향안착부(160b)는 상부케이싱(130)의 하부측, 그리고 중간케이싱(120)의 하부측 안착부를 일컫는다. 따라서 상향안착부(160a)는 중간케이싱(120)이나 하부케이싱(110)의 상단으로 연장되고, 하향안착부(160b)는 중간케이싱(120)이나 상부케이싱(130)의 하단으로 연장되며, 상하층간 케이싱들이 서 로 접촉될때에 상향안착부(160a) 및 하향안착부(160b)들이 서로 맞닿아 연통되게 된다.Here, the seating unit 160 will be described by dividing it into an upward seating unit 160a and a downward seating unit 160b. That is, the upper seat 160a is the upper side of the intermediate casing 120, and the upper seating portion of the lower casing 110, the lower seat 160b is the lower side of the upper casing 130, and the middle casing Refers to the lower seating portion of (120). Therefore, the upper seating portion 160a extends to the upper end of the middle casing 120 or the lower casing 110, and the lower seating portion 160b extends to the lower end of the middle casing 120 or the upper casing 130. When the interlayer casings are in contact with each other, the up seating portion 160a and the bottom seating portion 160b are brought into contact with each other.
이러한 안착부(160)는 각 케이싱들의 제작시에 거푸짚을 이용해 제작되는데, 이 거푸짚에 안착부를 형성하기 위한 자리를 마련하여 형성시킬 수 있다.The seating unit 160 is manufactured by using straw in the manufacture of each casing, it can be formed by providing a seat for forming a seating portion in the straw.
이때, 안착부는 각 케이싱들의 반대편상에 적어도 두개가 형성되어야 함이 바람직하고, 그 규모에 따라 세 개 또는, 네 개가 형성되어도 무방하다. 또는, 그 이상이 형성되어도 무방하다.At this time, it is preferable that at least two seating portions are formed on opposite sides of each casing, and three or four may be formed depending on the scale. Or more may be formed.
이와 같이 형성된 안착부(160)에는 각 케이싱(110, 120, 130)의 내부에서 연장되는 철근(140)이 외부로 돌출된다. 즉, 상부케이싱이나 중간케이싱이나 하부케이싱들은 그 제작시에 시멘트 몰탈의 인장력을 보강하기 위해 철근을 배근하여 보강시키게 되는데, 거푸짚의 철근 배근시에 안착부를 형성시키기 위해 마련된 부위에 철근이 돌출되도록 배근시켜 제작된다. 이때, 돌출되는 철근은 안착부(160)의 좌우측면에서 연장되어 가로방향으로 부채꼴 형상을 갖도록 형성된다.Reinforcing bars 140 extending from the inside of each of the casing (110, 120, 130) is formed in the seating portion 160 formed as described above. In other words, the upper casing, the intermediate casing or the lower casing is reinforced by reinforcing the reinforcing bars to reinforce the tensile strength of the cement mortar during the manufacturing process, so that the reinforcing bar protrudes in the part provided to form a seating part in the reinforcement of the straw. It is produced by stretching. At this time, the protruding reinforcement is formed to extend from the left and right sides of the seating portion 160 to have a fan shape in the horizontal direction.
그리고 돌출되는 철근(140)들은 안착부(160)의 안착높이보다 더 크지 않게 돌출됨이 바람직하다. 왜냐하면, 철근의 돌출높이가 안착부의 두께보다 더 크게 되면 맨홀의 설치 작업시 케이싱들의 외주면보다 철근이 더 돌출되어 조립성이 나쁘기 때문이다.And protruding reinforcing bars 140 is preferably protruded no greater than the mounting height of the mounting portion 160. If the protrusion height of the rebar is greater than the thickness of the seating portion, the reinforcing bar more protrudes than the outer peripheral surface of the casing during the installation of the manhole is bad assembly.
또는, 편리한 조립성을 고려하지 않는다면, 안착부(160)가 없어도 철근(140)만 노출되면 무방할 수 있다.Or, if the convenience of assembly is not considered, even without the seating portion 160, only the rebar 140 may be exposed.
이때, 하향안착부(160b)에 돌출되는 철근을 상부철근(140a)이라 하고, 상향 안착부(160a)에 돌출되는 철근을 하부철근(140b)이라 명칭하여 턴버클(150)을 이용한 결합구조를 부연하여 설명한다.In this case, the reinforcing bar protruding from the lower seating part 160b is referred to as the upper reinforcing bar 140a, and the reinforcing bar protruding from the upper seating part 160a is referred to as the lower bar 140b. Will be explained.
먼저, 턴버클(150)은 스패너나 플라이어와 같은 공구를 이용해 회전시킬 수 있도록 사각 또는, 육각으로 형성된 몸체(151)와, 몸체(151)의 양단에 서로 반대방향으로 나사결합되는 걸쇠(152)로 구성된다. 즉, 몸체(151)의 내부에는 축방향으로 중공(153)이 형성되고, 중공(153)의 양측 내주면상에는 어느 일측은 왼나사가 타측은 오른나사로된 암나사가 형성되게 된다. 그리고, 걸쇠(152)는 어느 일단에 정방향 수나사가 형성되고, 반대쪽 타단에는 구부러진 후크(154)가 형성된다.First, the turnbuckle 150 is a body 151 formed in a square or hexagon and a latch 152 screwed in opposite directions to both ends of the body 151 so as to rotate using a tool such as a spanner or a plier. It is composed. That is, the inside of the body 151 has a hollow 153 is formed in the axial direction, on either side of the inner circumferential surface of the hollow 153, one side of the left side of the left side of the screw is formed with the right side of the female thread. In addition, the clasp 152 has a forward male screw formed at one end thereof, and a bent hook 154 is formed at the other end thereof.
따라서 걸쇠(152)의 후크(154)가 상부철근(140a) 및 하부철근(140b)에 결합되어 걸리고, 이 걸쇠(152)들의 수나사가 몸체(151)에 서로 반대방향으로 형성된 암나사에 체결되면서 몸체(151)가 어느 일방향으로 회전되면 걸쇠(152)들이 동시에 체결되거나 풀려지게 되는 것이다.Therefore, the hook 154 of the clasp 152 is coupled to the upper reinforcing bars 140a and the lower reinforcing bars 140b, and the male screws of the clasps 152 are fastened to the female screws formed in opposite directions to the body 151 to the body. When the 151 is rotated in one direction, the clasps 152 are fastened or released at the same time.
도 5는 다른 형태의 철근 모습을 보인 사시도이고, 도 6은 도 5의 B-B선을 따라 도시한 단면도이다.FIG. 5 is a perspective view illustrating another form of rebar, and FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5.
도 5 및 도 6을 참고하면, 본 발명에 따른 또 다른 실시예의 철근(140a, 140b)은 안착부(160)의 가운데 면상에서 수직하게 "U"자 형태로 돌출된다. 이때, 상부철근(140a) 및 하부철근(140b)는 서로 일직선이 되도록 형성시켜야 턴버클(150)에 의해 체결되었을때, 휘어지지 않게 된다.5 and 6, the reinforcing bars 140a and 140b of another embodiment according to the present invention protrude in a “U” shape vertically on the center surface of the seating part 160. At this time, the upper reinforcing bar 140a and the lower reinforcing bar 140b should be formed in a straight line with each other when it is fastened by the turnbuckle 150, it is not bent.
상기에서는 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당기술분야의 숙련된 당업자는 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims You will understand.
도 1 및 도 2는 종래기술에 따른 조립식 맨홀의 결합구조를 보인 단면도이고,1 and 2 is a cross-sectional view showing a coupling structure of the prefabricated manhole according to the prior art,
도 3은 본 발명에 따른 조립식 맨홀의 결합구조를 보인 사시도이고,3 is a perspective view showing a coupling structure of a prefabricated manhole according to the present invention;
도 4는 도 3의 A-A선을 따라 도시한 단면도고,4 is a cross-sectional view taken along the line A-A of FIG.
도 5는 본 발명의 또 다른 실시예에 따른 조립식 맨홀의 결합구조를 보인 사시도로서, 철근의 다른 실시예를 보인 사시도이며, 그리고Figure 5 is a perspective view showing a coupling structure of the prefabricated manhole according to another embodiment of the present invention, a perspective view showing another embodiment of the rebar, and
도 6은 도 5의 B-B선을 따라 도시한 단면도이다.FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5.

Claims (5)

  1. 하부케이싱, 중간케이싱 및 상부케이싱을 포함하는 통상의 조립식 맨홀의 결합구조에 있어서,In the combined structure of a conventional prefabricated manhole comprising a lower casing, an intermediate casing and an upper casing,
    상기 케이싱들의 접촉부위 상하부에는 상기 케이싱들의 접촉부위를 향해 연장되는 적어도 두쌍 이상의 안착부가 형성되고, 상기 각각의 안착부에는 상기 케이싱에 내근된 철근이 상기 안착부의 높이보다 같거나 작게 부채꼴 형상으로 돌출 형성되고, 상기 각 쌍의 철근들에는 턴버클이 체결됨을 특징으로 하는 조립식 맨홀의 결합구조.Upper and lower contact portions of the casings are formed with at least two pairs of seating portions extending toward the contacting portions of the casings, and each of the seating portions protrudes in a fan shape equal to or smaller than the height of the seating portion. The coupling structure of the prefabricated manhole, characterized in that the turnbuckle is fastened to each of the pair of reinforcing bars.
  2. 하부케이싱, 중간케이싱 및 상부케이싱을 포함하는 통상의 조립식 맨홀의 결합구조에 있어서,In the combined structure of a conventional prefabricated manhole comprising a lower casing, an intermediate casing and an upper casing,
    상기 케이싱들의 접촉부위 상하부에는 상기 케이싱들의 접촉부위를 향해 연장되는 적어도 두쌍 이상의 안착부가 형성되고, 상기 각각의 안착부에는 상기 케이싱에 내근된 철근이 상기 안착부의 높이보다 같거나 작게 수직한 "U"자 형태로 형성되고, 상기 각 쌍의 철근들에는 턴버클이 체결됨을 특징으로 하는 조립식 맨홀의 결합구조.Upper and lower contact portions of the casings are formed with at least two pairs of seating portions extending toward the contact portions of the casings, and each seating portion has a vertical “U” in which reinforcing bars in the casing are equal to or smaller than the height of the seating portion. Formed in the shape of a child, the coupling structure of the prefabricated manhole, characterized in that the turnbuckle is fastened to each of the pair of reinforcing bars.
  3. 삭제delete
  4. 삭제delete
  5. 삭제delete
KR1020080001541A 2008-01-07 2008-01-07 Combine structure for a sectional manhole KR100856716B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101055359B1 (en) 2009-01-13 2011-08-08 주식회사 덕산엠앤씨 Coupling device of prefabricated manhole
KR101285606B1 (en) * 2011-05-30 2013-07-12 삼성파워텍주식회사 Structure of Manhole-assembly
KR101292281B1 (en) * 2011-07-20 2013-08-09 유한회사 남광산업개발 Prefabricated manhole
KR101550324B1 (en) 2013-08-12 2015-09-04 주식회사 대창 Manhole Coupling Structure
KR101715132B1 (en) * 2016-08-19 2017-03-13 유천만 Assembling Construction Method Using Divided Manhole For Water Supply And Drainage
KR102030351B1 (en) 2019-06-25 2019-11-08 동양특수콘크리트 (주) Structure connection top and bottom of manhole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200291112Y1 (en) * 2002-06-25 2002-10-09 영풍산업 주식회사 A sectional manhole to prevent collapse or leaking water
KR20060033697A (en) * 2005-05-04 2006-04-19 김병주 Construction typemanhole

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200291112Y1 (en) * 2002-06-25 2002-10-09 영풍산업 주식회사 A sectional manhole to prevent collapse or leaking water
KR20060033697A (en) * 2005-05-04 2006-04-19 김병주 Construction typemanhole

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101055359B1 (en) 2009-01-13 2011-08-08 주식회사 덕산엠앤씨 Coupling device of prefabricated manhole
KR101285606B1 (en) * 2011-05-30 2013-07-12 삼성파워텍주식회사 Structure of Manhole-assembly
KR101292281B1 (en) * 2011-07-20 2013-08-09 유한회사 남광산업개발 Prefabricated manhole
KR101550324B1 (en) 2013-08-12 2015-09-04 주식회사 대창 Manhole Coupling Structure
KR101715132B1 (en) * 2016-08-19 2017-03-13 유천만 Assembling Construction Method Using Divided Manhole For Water Supply And Drainage
KR102030351B1 (en) 2019-06-25 2019-11-08 동양특수콘크리트 (주) Structure connection top and bottom of manhole

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