KR100878008B1 - A Waterproof Method and Waterproof Structure of Corrugated Steel Plate Structure - Google Patents

A Waterproof Method and Waterproof Structure of Corrugated Steel Plate Structure Download PDF

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KR100878008B1
KR100878008B1 KR1020070048328A KR20070048328A KR100878008B1 KR 100878008 B1 KR100878008 B1 KR 100878008B1 KR 1020070048328 A KR1020070048328 A KR 1020070048328A KR 20070048328 A KR20070048328 A KR 20070048328A KR 100878008 B1 KR100878008 B1 KR 100878008B1
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steel sheet
corrugated steel
waterproofing
corrugated
primer
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KR1020070048328A
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KR20080102034A (en
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정성만
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주식회사 픽슨
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/26Perforating, i.e. punching holes in sheets or flat parts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14Lining predominantly with metal
    • E21D11/18Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/20Special cross- sections, e.g. corrugated
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

본 발명은 파형강판 구조물의 방수방법 및 방수구조에 관한 것이다.The present invention relates to a waterproof method and a waterproof structure of a corrugated steel sheet structure.

본 발명은 파형강판 구조물의 표면에 방수액이 도포되어지는 파형강판 구조물의 방수방법에 있어서, 언코일러에서 풀려지는 강판코일을 절단 프레스로 절단하는 강판 절단공정과; 상기 절단된 강판을 파형 프레스 금형이 결합된 프레스로 가압하여 파형강판을 형성하는 파형 절곡공정과; 상기 파형강판의 조립홀 위치에 펀칭 프레스로 펀칭공을 형성하는 파형강판 펀칭공정과; 상기 펀칭공이 형성된 곧은 파형강판을 만곡형태를 갖도록 벤딩 프레스로 벤딩하는 파형강판 벤딩공정과; 상기 벤딩된 파형강판의 성형 형태를 교정하는 파형강판 교정공정과; 상기 교정된 파형강판의 표면에 있는 이물질을 블라스팅으로 제거하는 이물질 제거공정과; 상기 이물질이 제거되어진 파형강판의 표면에 프라이머액을 분사시켜 프라이머층이 도포되어지는 프라이머 도포공정과; 상기 프라이머가 도포된 파형강판을 좌,우방향으로 볼트 너트로 결합시키는 파형강판 결합공정과; 상기 파형강판이 결합된 상,하 표면에 방수액을 노즐로 분사시켜 방수층이 도포되어지는 방수층 도포공정 및; 상기 방수층에 에어를 공급하여 경화되어지는 경화공정으로 이루어짐을 특징으로 한다.The present invention provides a waterproofing method of a corrugated steel sheet structure in which a waterproofing liquid is applied to a surface of the corrugated steel sheet structure, the method comprising: a steel sheet cutting process of cutting a steel sheet coil released from an uncoiler by a cutting press; A waveform bending step of forming a corrugated steel sheet by pressing the cut steel sheet with a press in which a corrugated press die is coupled; A corrugated steel punching step of forming a punching hole with a punching press at an assembly hole position of the corrugated steel sheet; A corrugated steel sheet bending process of bending the straight corrugated steel sheet on which the punching hole is formed by a bending press to have a curved shape; A corrugated steel sheet calibration process of calibrating a forming form of the bent corrugated steel sheet; A debris removal process of removing debris on the surface of the corrugated corrugated steel sheet by blasting; A primer coating step of spraying a primer solution on the surface of the corrugated steel sheet from which the foreign matter is removed; A corrugated steel sheet joining process of joining the corrugated steel sheet to which the primer is applied with a bolt nut in left and right directions; A waterproofing layer applying process in which a waterproofing layer is sprayed by spraying a waterproofing liquid onto a nozzle on the upper and lower surfaces of the corrugated steel sheet; It is characterized by consisting of a curing process that is cured by supplying air to the waterproof layer.

프라이머, 파형강판, 절단, 절곡, 벤딩, 블라스팅, 방수액, 방수층, 경화 Primer, corrugated steel sheet, cutting, bending, bending, blasting, waterproofing, waterproofing layer, hardening

Description

파형강판 구조물의 방수방법 및 방수구조{A Waterproof Method and Waterproof Structure of Corrugated Steel Plate Structure}A Waterproof Method and Waterproof Structure of Corrugated Steel Plate Structure}

도1은 본 발명에 따른 파형강판 구조물의 방수방법을 도시한 흐름도.1 is a flow chart illustrating a waterproofing method of a corrugated steel sheet structure according to the present invention.

도2는 본 발명에 따른 파형강판 구조물의 방수방법을 도시한 구성도.Figure 2 is a block diagram showing a waterproof method of the corrugated steel sheet structure according to the present invention.

도3은 본 발명에 따른 파형강판 구조물의 방수구조를 도시한 사시도.Figure 3 is a perspective view showing the waterproof structure of the corrugated steel sheet structure according to the present invention.

도4는 본 발명에 따른 파형강판 구조물의 요부 확대 단면도. Figure 4 is an enlarged cross-sectional view of the main portion of the corrugated steel sheet structure according to the present invention.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

S10:강판 절단공정 S20:파형 절곡공정S10: steel sheet cutting process S20: waveform bending process

S30:파형강판 펀칭공정 S40:파형강판 벤딩공정S30: Corrugated Steel Sheet Punching Process S40: Corrugated Steel Sheet Bending Process

S50:벤딩파형강판 교정공정 S60:이물질 제거공정S50: Bending waveform steel plate calibration process S60: Foreign substance removal process

S70:프라이머 도포공정 S80:파형강판 결합공정S70: Primer coating process S80: Corrugated steel sheet joining process

S90:방수층 도포공정 S100:경화공정S90: waterproofing layer coating step S100: curing step

본 발명은 파형강판 구조물의 방수방법 및 방수구조에 관한 것으로서 특히, 언코일러에서 풀려나오는 강판코일을 일정한 길이로 절단, 절곡, 펀칭, 벤딩 및 블 라스팅(쇼트, 그릿, 샌드 등)처리 되어진 파형강판의 표면에 프라이머층이 도포되어지도록 하여 결합시킨 후 그 표면에 에폭시, 폴리우레아, 아스콘, 우레아 또는 폴리우레아 코팅액이 분사되어 경화됨으로써 연결부위가 없는 일체형의 방수층을 형성시켜 누수되는 것을 완전히 방지할 수 있도록 하고, 아울러 파형강판의 내화학성, 내식성, 내마모성, 내충격성을 높여 파형강판 구조물의 수명을 연장시킬 수 있도록 한 것이다.The present invention relates to a waterproofing method and a waterproof structure of a corrugated steel sheet structure, in particular, a corrugated steel sheet that has been cut, bent, punched, bent and blasted (shot, grit, sand, etc.) to a certain length of the steel coil released from the uncoiler After bonding the primer layer is applied to the surface of the coating, the epoxy, polyurea, ascon, urea or polyurea coating solution is sprayed and cured to form an integral waterproof layer without connecting parts to completely prevent leakage. In addition, by increasing the chemical resistance, corrosion resistance, wear resistance, impact resistance of the corrugated steel sheet to extend the life of the corrugated steel sheet structure.

일반적으로 소정 두께와 넓이를 갖는 평판형태의 강판은 이를 여러 형태로 절곡시키고, 이를 축방향으로 연속되는 터널형태로 조립함으로써 교량, 통·수로 암거, 개착터널, 피암터널, 생태이동통로, 공동구 및 용수, 배수로에 사용되어지며 기타 호안용 셀, 지붕, 창고 등 여러 용도로 사용되어지고 있다.In general, a plate-shaped steel plate having a predetermined thickness and width is bent in various forms, and assembled into a tunnel form that is continuous in the axial direction, such as a bridge, a channel and a channel culvert, an open tunnel, a pit tunnel, an eco-moving passage, a hollow ball and It is used for water and drainage, and is used for many purposes such as other coastal cells, roofs and warehouses.

강판은 구조물의 크기가 작을 경우 벤딩된 하나의 강판을 이용하며 크기가 커질 경우 강판을 벤딩하는 과정에서 벤딩율을 크게함과 동시에 파형강판을 여러장으로 나뉘어 제조하고, 제조된 파형강판을 서로 겹쳐지도록 한 후 볼트와 너트로 결합시켜 설치되어진다.When the size of the structure is small, the steel plate is used to be bent, and when the size is large, the bending rate is increased in the process of bending the steel plate, and the corrugated steel sheet is divided into several sheets, and the corrugated steel sheets are overlapped with each other. After installation, it is installed by bolts and nuts.

볼트와 너트로 조립되어진 파형강판 구조물의 경우 파형강판과 파형강판이 겹쳐지는 곳과 볼트 및 너트로 결합된 부분을 통해 빗물이 누수되는 문제점이 있었고, 이러한 문제점을 해소하기 위한 방안으로 파형강판과 파형강판 사이에 루버를 개재하여 결합시키거나 결합된 부분에 실리콘 등을 이용하여 별도의 실링처리를 하였다.In the case of the corrugated steel sheet structure assembled with bolts and nuts, there was a problem in which rainwater leaked through the place where the corrugated steel sheet and corrugated steel overlap and the parts joined by the bolts and nuts. The louver is interposed between the steel sheets or a separate sealing treatment is performed using silicon or the like on the bonded portion.

그러나 파형강판 사이에 루버를 개재할 경우 작업공정수의 증가로 인하여 작 업성이 낮아지는 문제점이 있었고, 서로 결합된 상태에서 실링처리를 할 경우 시간이 경과되는 과정에서 실링부위의 노후화로 인하여 빗물이 누수되는 또 다른 문제점이 있었고, 일정 기간 마다 실링처리를 다시 해야 되는 번거로운 문제점이 있었다.However, when the louver is interposed between the corrugated steel sheets, there is a problem that the workability is lowered due to the increase in the number of work processes. When the sealing process is performed in a bonded state, rain water is generated due to the aging of the sealing part in the course of time. There was another problem of leakage, and there was a cumbersome problem of having to perform the sealing process again every period.

본 발명은 이와 같은 문제점을 해소하기 위해 창출된 것으로서 언코일러에서 풀려나오는 강판코일을 일정한 길이로 절단, 절곡, 펀칭, 벤딩 및 블라스팅 처리 되어진 파형강판의 표면에 프라이머층이 도포되어지도록 하여 결합시킨 후 그 표면에 에폭시, 폴리우레탄, 아스콘, 우레아 또는 폴리우레아 코팅액이 분사되어 경화됨으로써 연결부위가 없는 일체형의 방수층을 형성시켜 누수되는 것을 완전히 방지할 수 있도록 하고, 아울러 파형강판의 내화학성, 내식성, 내마모성, 내충격성을 높여 강판 구조물의 수명을 연장시킬 수 있는 파형강판 구조물의 방수방법 및 방수구조를 제공하는데 그 목적이 있다.The present invention was created in order to solve such a problem, after combining the steel sheet coil released from the uncoiler to a certain length by cutting, bending, punching, bending and blasting the primer layer is applied to the surface of the corrugated steel sheet Epoxy, polyurethane, ascon, urea or polyurea coating solution is sprayed on the surface to harden to form an integral waterproof layer without connecting parts to completely prevent leakage and to prevent chemical corrosion, corrosion resistance and abrasion resistance of corrugated steel sheets. Its purpose is to provide a waterproofing method and waterproofing structure of corrugated steel sheet structure that can increase the impact resistance and extend the life of the steel sheet structure.

이와 같은 목적을 달성하기 위한 본 발명은 파형강판 구조물의 표면에 방수액이 도포되어지는 파형강판 구조물의 방수방법에 있어서, 언코일러에서 풀려지는 강판코일을 절단 프레스로 절단하는 강판 절단공정(S10)과; 상기 절단된 강판을 파형 프레스 금형이 결합된 프레스로 가압하여 파형강판을 형성하는 파형 절곡공정(S20)과; 상기 파형강판의 조립홀 위치에 펀칭 프레스로 펀칭공을 형성하는 파형강판 펀칭공정(S30)과; 상기 펀칭공이 형성된 파형강판을 만곡형태를 갖도록 벤딩 프레스로 벤딩하는 파형강판 벤딩공정(S40)과; 상기 벤딩된 파형강판의 성형 형태를 교정하는 벤딩파형강판 교정공정(S50)과; 상기 교정된 파형강판의 표면에 있는 이물질을 블라스팅으로 제거하는 이물질 제거공정(S60)과; 상기 이물질이 제거되어진 파형강판의 표면에 프라이머액을 분사시켜 프라이머층이 도포되어지는 프라이머 도포공정(S70)과; 상기 프라이머가 도포된 파형강판을 좌,우방향으로 볼트 너트로 결합시키는 파형강판 결합공정(S80)과; 상기 파형강판이 결합된 상,하 표면에 방수액을 노즐로 분사시켜 방수층이 도포되어지는 방수층 도포공정(S90) 및; 상기 방수층에 에어를 공급하여 경화되어지는 경화공정(S100)으로 이루어짐을 특징으로 한다.In order to achieve the above object, the present invention provides a waterproofing method of a corrugated steel sheet structure in which a waterproofing liquid is applied to the surface of the corrugated steel sheet structure, wherein the steel sheet cutting process (S10) cuts the steel sheet coil released from the uncoiler with a cutting press. ; A waveform bending process (S20) of forming a corrugated steel sheet by pressing the cut steel sheet with a press in which a corrugated press die is coupled; A corrugated steel sheet punching step (S30) of forming a punching hole by a punching press at an assembly hole position of the corrugated steel sheet; A corrugated steel sheet bending process (S40) of bending the corrugated steel sheet on which the punching hole is formed by a bending press to have a curved shape; A bending waveform steel plate straightening process (S50) for correcting a shape of the bent corrugated steel sheet; A foreign substance removing step (S60) of removing foreign substances on the surface of the corrected corrugated steel sheet by blasting; A primer coating step (S70) in which a primer layer is applied by spraying a primer solution on the surface of the corrugated steel sheet from which the foreign matter is removed; A corrugated steel sheet joining process (S80) for joining the corrugated steel sheet coated with the primer with a bolt nut in a left and right direction; A waterproofing layer applying process (S90) in which a waterproofing layer is sprayed by spraying a waterproofing liquid with a nozzle on the upper and lower surfaces of the corrugated steel sheet; It is characterized by consisting of a curing step (S100) is cured by supplying air to the waterproof layer.

또한, 상기 프라이머 도포공정(S70)에서 도포되어지는 프라이머층의 두께는 10~500㎛를 갖도록 하고, 프라이머액은 100~2000g/m2로 도포되어지도록 이루어짐을 특징으로 한다.In addition, the primer layer to be applied in the primer coating step (S70) to have a thickness of 10 ~ 500㎛, the primer solution is characterized in that it is made to be applied at 100 ~ 2000g / m 2 .

또한, 상기 프라이머 도포공정(S70)은 프라이머층이 경화된 후 수회 반복하여 도포되어짐을 특징으로 한다.In addition, the primer coating step (S70) is characterized in that the primer layer is cured several times after being cured.

또한, 상기 방수층 도포공정(S90)의 방수액은 에폭시(Epoxy), 폴리우레탄(Polyurethane), 아스콘, 우레탄(Urethane) 또는 이소시아네이트 프리폴리머(Isocyanate Prepolymer)와 폴리아민(Poly Amine)을 1:1로 혼합하여 60~75℃로 가열되어진 폴리우레아(Polyurea) 중 어느 하나인 것을 특징으로 한다.In addition, the waterproofing solution of the waterproofing layer coating process (S90) is 60 by mixing epoxy (polyoxy), polyurethane (polyurethane), ascone, urethane (urethane) or isocyanate prepolymer (polyamine) in a 1: 1 ratio It is characterized in that any one of the polyurea (Polyurea) is heated to ~ 75 ℃.

그리고 상기 방수층 도포공정(S90)은 수회 반복되어 방수층의 두께가 조절되 어짐을 특징으로 하는 파형강판 구조물의 방수방법을 제공함에 그 목적이 달성된다.And the waterproof layer coating step (S90) is repeated several times to achieve the purpose of providing a waterproof method of the corrugated steel sheet structure, characterized in that the thickness of the waterproof layer is adjusted.

한편, 골과 산이 형성된 파형강판이 연속적으로 상,하 및 좌,우로 결합되어진 파형강판 구조물의 방수구조에 있어서, 상기 파형강판의 조립홀 위치에 펀칭공(13)이 형성되어 만곡형태로 벤딩되어지고, 상기 벤딩된 파형강판의 표면에 프라이머층(20)이 도포되며, 상기 펀칭공(13)에 볼트(B)와 너트(N)가 끼워져 결합되어지고, 상기 볼트(B)를 포함하는 프라이머층(20)의 상,하 표면에 방수층(30)이 덮혀지도록 도포되어 경화되어짐을 특징으로 한다.On the other hand, in the waterproof structure of the corrugated steel sheet structure in which the corrugated steel sheet formed with bone and acid are continuously coupled to the upper, lower, left and right, a punching hole 13 is formed at the assembly hole position of the corrugated steel sheet and bent in a curved shape. The primer layer 20 is applied to the surface of the bent corrugated steel sheet, and the bolt B and the nut N are fitted into the punching hole 13 to be coupled to each other, and the primer includes the bolt B. It is characterized in that the upper and lower surfaces of the layer 20 are coated and cured to cover the waterproof layer 30.

그리고 상기 방수층(30)은 에폭시, 폴리우레탄, 아스콘, 우레탄 또는 이소시아네이트 프리폴리머와 폴리아민이 혼합된 폴리우레아 중 어느 하나로 이루어짐을 특징으로 하는 파형강판 구조물의 방수구조를 제공함에 그 목적이 달성된다.And the waterproof layer 30 is the object of providing a waterproof structure of the corrugated steel sheet structure, characterized in that made of any one of polyurea mixed with epoxy, polyurethane, ascone, urethane or isocyanate prepolymer and polyamine.

이하, 본 발명의 실시예를 첨부 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도1은 본 발명에 따른 파형강판 구조물의 방수방법을 도시한 흐름도이고, 도2는 본 발명에 따른 파형강판 구조물의 방수방법을 도시한 구성도이고, 도3은 본 발명에 따른 파형강판 구조물의 방수구조를 도시한 사시도이고, 도4는 본 발명에 따른 파형강판 구조물의 요부 확대 단면도이다.1 is a flow chart illustrating a waterproofing method of the corrugated steel sheet structure according to the present invention, Figure 2 is a configuration diagram showing a waterproofing method of the corrugated steel sheet structure according to the present invention, Figure 3 is a view of the corrugated steel sheet structure according to the present invention 4 is a perspective view illustrating a waterproof structure, and FIG. 4 is an enlarged cross-sectional view showing main parts of a corrugated steel sheet structure according to the present invention.

본 발명에 따른 파형강판 구조물은 도3,4에 도시된 바와 같이 골(11)과 산(12)이 연속되어지는 파형강판(10)이 아치형태로 결합되어 돔형의 터널형태를 갖도록 구성되어 있다. 이 외에 파형강판 구조물은 형태에 따라 박스형, 원형이 있다.The corrugated steel sheet structure according to the present invention is configured to have a domed tunnel shape by combining the corrugated steel sheet 10 in which the valleys 11 and the peaks 12 are continuous in an arch shape as shown in FIGS. 3 and 4. . In addition, the corrugated steel sheet structure is box-shaped or circular, depending on the shape.

여기에서, 상기 파형강판(10)은 만곡형태로 벤딩되어진 조립홀 위치에 다수개의 펀칭공(13)이 형성되어지며 그 표면에는 소정 두께를 갖는 프라이머층(20)이 도포되어지도록 구성되어 있고, 상기 펀칭공(13)에 볼트(B)가 끼워져 너트(N)로 결합되어지도록 구성되어 전체적으로 파형강판(10)을 평면에서 볼때 좌우 및 전후로 연속되도록 결합시켜 도3에 도시된 바와 같은 돔형태를 갖는 파형강판 구조물이 설치되어지도록 구성되어 있다.Here, the corrugated steel sheet 10 is formed so that a plurality of punching holes 13 are formed in the assembly hole position bent in a curved shape and the primer layer 20 having a predetermined thickness is coated on the surface thereof. The bolt B is inserted into the punching hole 13 to be coupled by a nut N. The corrugated steel sheet 10 is generally coupled to the left and right and front and rear in a plan view to form a dome shape as shown in FIG. 3. It is configured to have a corrugated steel sheet structure having.

또한, 상기 볼트(B)를 포함하는 프라이머층(20)의 전체 표면에 소정 두께를 갖는 방수층(30)이 덮혀지도록 도포 및 경화되어 각각의 맞닿는 결합부위를 통해 누수가 되는 것을 막을 수 있도록 구성되어 있다.In addition, the entire surface of the primer layer 20 including the bolt (B) is coated and cured so as to cover the waterproof layer 30 having a predetermined thickness is configured to prevent leakage through each of the mating coupling site have.

그리고 상기 방수층(30)은 에폭시, 폴리우레탄, 아스콘, 우레탄 또는 폴리우레아로 이루어지도록 구성되어지며 상기 폴리우레아는 이소시아네이트 프리폴리머와 폴리아민이 혼합되어 용융된 상태로 도포된 후 경화되어 방수층(30)을 형성하게 된다.The waterproof layer 30 is composed of epoxy, polyurethane, ascone, urethane or polyurea, and the polyurea is mixed with an isocyanate prepolymer and a polyamine in a molten state and cured to form a waterproof layer 30. Done.

이러한 파형강판 구조물은 도1 및 도2에 도시된 바와 같이 먼저, 언코일러(50)에서 풀려지는 강판코일(S)을 절단 프레스(40)로 절단하는 강판 절단공정(S10)을 통해 일정한 길이로 절단되어지게 되며 절단되어진 강판(S)은 파형 프레스 금형이 결합된 프레스(41)로 가압하여 파형강판(10a)이 형성되어지게 된다(파형 절곡공정(S20)).As shown in FIGS. 1 and 2, the corrugated steel sheet structure has a predetermined length through a steel sheet cutting process S10 of cutting the steel sheet coil S released by the uncoiler 50 with a cutting press 40. The steel sheet S to be cut and cut is pressurized by the press 41 to which the corrugated press die is coupled to form a corrugated steel sheet 10a (waveform bending process S20).

다음, 파형강판 펀칭공정(S30)으로 펀칭 프레스(42)를 이용하여 상기 파형강판(10a)의 조립홀 위치에 펀칭공(13)이 형성되어진 파형강판(10b)을 얻고, 상기 펀 칭공(13)이 형성된 파형강판(10b)은 가압로울러를 갖는 벤딩 프레스(43)에 의하여 벤딩된 파형강판(10c)를 얻는다(파형강판 벤딩공정(S40)).Next, a corrugated steel sheet punching process (S30) is used to obtain a corrugated steel sheet 10b having a punching hole 13 formed at an assembly hole position of the corrugated steel sheet 10a using a punching press 42, and the punching hole 13 ), The corrugated steel sheet 10b is formed to obtain a corrugated steel sheet 10c which is bent by a bending press 43 having a pressure roller (corrugated steel sheet bending process S40).

다음, 벤딩된 파형강판(10c)은 벤딩되어지는 과정에서 성형 기준치와의 차이인 오차가 발생하게 되며 이때 발생된 오차는 상기 파형강판 벤딩공정(S40)에서 사용되어진 벤딩 프레스(43)를 다시 한 번 통과되어지도록 함으로써 벤딩된 파형강판(10d)의 성형 형태가 교정되어진다(벤딩파형강판 교정공정(S50))Next, the bent corrugated steel sheet 10c generates an error that is a difference from a molding reference value in the process of being bent, and the error is generated by the bending press 43 used in the corrugated steel sheet bending process S40. By making it pass through once, the shape of the bent corrugated steel sheet 10d is corrected (bending corrugated steel sheet calibration step S50).

다음, 이물질 제거공정(S60)으로 교정되어지며 벤딩된 파형강판(10d)의 표면에 블라스팅(쇼트, 그릿, 샌드 등)(44)을 하여 벤딩된 파형강판(10d)의 표면에 있는 이물질이 제거되어지며 상기 블라스팅(44)에 의하여 이물질이 제거되어진 파형강판(10d)의 표면에 분사노즐(45)로 프라이머액을 분사시켜 프라이머층(20)이 도포되어진 벤딩된 파형강판(10e)을 얻는다(프라이머 도포공정(S70)). 이때 상기 프라이머 도포공정(S70)에서 도포되어지는 프라이머층(20)의 두께는 10~200㎛로 하며 특히, 20~60㎛를 갖도록 하는 것이 바람직하고, 프라이머액은 50~1,000g/m2로 도포되어지며 특히, 50~300g/m2로 도포되어지도록 하는 것이 바람직하다. 또한, 상기 프라이머 도포공정(S70)은 프라이머층(20)이 경화된 후 수회 반복하여 도포되어지도록 할 수 있다.Next, the foreign matter on the surface of the bent corrugated steel sheet 10d is removed by performing a blasting (shot, grit, sand, etc.) 44 on the surface of the bent corrugated steel sheet 10d, which is calibrated by the foreign matter removing process S60. The primer liquid is sprayed onto the surface of the corrugated steel sheet 10d from which the foreign matter is removed by the blasting 44 with the spray nozzle 45 to obtain a bent corrugated steel sheet 10e coated with the primer layer 20 ( Primer application process (S70)). At this time, the thickness of the primer layer 20 to be applied in the primer coating step (S70) is 10 ~ 200㎛, in particular, it is preferable to have a 20 ~ 60㎛, primer solution is 50 ~ 1,000g / m 2 It is preferable to apply | coated and especially to apply at 50-300g / m <2> . In addition, the primer application process (S70) may be to be repeatedly applied several times after the primer layer 20 is cured.

다음, 프라이머가 도포된 벤딩된 파형강판(10e)을 좌,우방향으로 볼트(B) 및 너트(N)로 결합시키는 파형강판 결합공정(S80)을 통해 넓은 면적을 갖는 결합된 파형강판(10f)을 얻고, 상기 파형강판(10f)이 결합된 상,하 표면에 방수액을 노 즐(46)로 분사시켜 방수층(30)이 도포되어지게 된다(방수층 도포공정(S90)).Next, the bonded corrugated steel sheet 10f having a large area through the corrugated steel sheet joining process S80 for joining the bent corrugated steel sheet 10e coated with primers to the bolt B and the nut N in left and right directions. ) Is sprayed on the upper and lower surfaces to which the corrugated steel sheet 10f is coupled to the nozzle 46 to apply the waterproof layer 30 (waterproof layer coating process S90).

이때 상기 방수층 도포공정(S90)의 방수액은 이소시아네이트 프리폴리머와 폴리아민을 1:1로 혼합하여 50~80℃로 가열되어진 폴리우레아를 사용하거나 에폭시, 폴리우레탄, 아스콘, 우레탄을 사용할 수 있으며 방수액 가열온도는 60~75℃가 유지되어지도록 하는 것이 더욱 바람직하다. 또한, 상기 방수층 도포공정(S90)은 수회 반복되어 전체적으로 방수층(30)의 두께가 조절되어지도록 할 수 있다.At this time, the waterproofing solution of the waterproofing layer coating process (S90) may be a polyurea heated to 50 ~ 80 ℃ by mixing the isocyanate prepolymer and polyamine in a 1: 1 or use epoxy, polyurethane, ascon, urethane and the waterproofing liquid heating temperature is It is more preferable to keep 60-75 degreeC. In addition, the waterproofing layer applying process (S90) may be repeated several times to adjust the thickness of the waterproofing layer 30 as a whole.

그리고, 상기 방수층(30)에 에어노즐(46)을 이용하여 에어를 공급시켜 방수층(30)이 경화되어지도록 하는 경화공정(S100)을 통해 파형강판 구조물이 방수되어지게 된다.In addition, the corrugated steel sheet structure is waterproofed through a hardening process (S100) in which air is supplied to the waterproof layer 30 using the air nozzle 46 to harden the waterproof layer 30.

이와 같이 본 발명은 언코일러에서 풀려나오는 강판코일을 일정한 길이로 절단, 절곡, 펀칭, 벤딩 및 블라스팅 처리 되어진 파형강판의 표면에 프라이머층이 도포되어지도록 하여 결합시킨 후 그 표면에 에폭시, 폴리우레탄, 아스콘, 우레탄 또는 폴리우레아 코팅액이 분사되어 경화되어짐으로써 연결부위가 없는 일체형의 방수층을 형성시켜 누수되는 것을 완전히 방지할 수 있는 효과를 얻을 수 있다.In this way, the present invention is bonded to the surface of the corrugated steel sheet cut, bent, punched, bent and blasted to a certain length of the uncoiled steel sheet coil uncoiler and then bonded to the epoxy, polyurethane, As ascon, urethane or polyurea coating liquid is sprayed and cured, an integral waterproof layer having no connection portion is formed, and thus an effect of completely preventing leakage can be obtained.

또한, 파형강판의 내화학성, 내식성, 내마모성, 내충격성을 높여 파형강판 구조물의 수명을 연장시킬 수 있는 효과를 더 얻을 수 있다.In addition, by increasing the chemical resistance, corrosion resistance, abrasion resistance, impact resistance of the corrugated steel sheet it is possible to further obtain the effect of extending the life of the corrugated steel sheet structure.

Claims (7)

파형강판 구조물의 표면에 방수액이 도포되어지는 파형강판 구조물의 방수방법에 있어서,In the waterproofing method of the corrugated steel sheet structure that the waterproofing liquid is applied to the surface of the corrugated steel sheet structure, 언코일러에서 풀려지는 강판코일을 절단 프레스로 절단하는 강판 절단공정(S10)과;A steel sheet cutting process (S10) of cutting the steel sheet coils released by the uncoiler with a cutting press; 상기 절단된 강판을 파형 프레스 금형이 결합된 프레스로 가압하여 파형강판을 형성하는 파형 절곡공정(S20)과;A waveform bending process (S20) of forming a corrugated steel sheet by pressing the cut steel sheet with a press in which a corrugated press die is coupled; 상기 파형강판의 조립홀 위치에 펀칭 프레스로 펀칭공을 형성하는 파형강판 펀칭공정(S30)과;A corrugated steel sheet punching step (S30) of forming a punching hole by a punching press at an assembly hole position of the corrugated steel sheet; 상기 펀칭공이 형성된 파형강판을 만곡형태를 갖도록 벤딩 프레스로 벤딩하는 파형강판 벤딩공정(S40)과;A corrugated steel sheet bending process (S40) of bending the corrugated steel sheet on which the punching hole is formed by a bending press to have a curved shape; 상기 벤딩된 파형강판의 성형 형태를 교정하는 벤딩파형강판 교정공정(S50)과;A bending waveform steel plate straightening process (S50) for correcting a shape of the bent corrugated steel sheet; 상기 교정된 파형강판의 표면에 있는 이물질을 블라스팅으로 제거하는 이물질 제거공정(S60)과;A foreign substance removing step (S60) of removing foreign substances on the surface of the corrected corrugated steel sheet by blasting; 상기 이물질이 제거되어진 파형강판의 표면에 프라이머액을 분사시켜 프라이머층이 도포되어지는 프라이머 도포공정(S70)과;A primer coating step (S70) in which a primer layer is applied by spraying a primer solution on the surface of the corrugated steel sheet from which the foreign matter is removed; 상기 프라이머가 도포된 파형강판을 좌,우방향으로 볼트, 너트로 결합시키는 파형강판 결합공정(S80)과;A corrugated steel sheet joining process (S80) for joining the corrugated steel sheet to which the primer is applied by bolts and nuts in left and right directions; 상기 파형강판이 결합된 상,하 표면에 방수액을 노즐로 분사시켜 방수층이 도포되어지는 방수층 도포공정(S90) 및;A waterproofing layer applying process (S90) in which a waterproofing layer is sprayed by spraying a waterproofing liquid with a nozzle on the upper and lower surfaces of the corrugated steel sheet; 상기 방수층에 에어를 공급하여 경화되어지는 경화공정(S100)으로 이루어지되,Supplying air to the waterproof layer is made of a curing process (S100), 상기 프라이머 도포공정(S70)에서 도포되어지는 프라이머층의 두께는 10~200㎛를 갖도록 하고, 프라이머액은 50~1,000g/m2로 도포되어지도록 이루어짐을 특징으로 하는 파형강판 구조물의 방수방법.The primer layer to be applied in the primer coating step (S70) to have a thickness of 10 ~ 200㎛, primer solution is a waterproof method of the corrugated steel sheet structure, characterized in that it is made to be applied to 50 ~ 1,000g / m 2 . 삭제delete 제1항에 있어서,The method of claim 1, 상기 프라이머 도포공정(S70)은 프라이머층이 경화된 후 수회 반복하여 도포되어짐을 특징으로 하는 파형강판 구조물의 방수방법.The primer coating step (S70) is a waterproofing method of the corrugated steel sheet structure, characterized in that the primer layer is cured repeatedly applied several times. 제1항에 있어서,The method of claim 1, 상기 방수층 도포공정(S90)의 방수액은 에폭시, 폴리우레탄, 아스콘, 우레탄 또는 이소시아네이트 프리폴리머와 폴리아민을 1:1로 혼합하여 60~75℃로 가열되어진 폴리우레아 중 어느 하나인 것을 특징으로 하는 파형강판 구조물의 방수방법.The waterproofing solution of the waterproofing layer coating process (S90) is a corrugated steel sheet structure, characterized in that any one of polyurea heated to 60 ~ 75 ℃ by mixing 1: 1, epoxy, polyurethane, ascone, urethane or isocyanate prepolymer and polyamine. How to waterproof. 제4항에 있어서,The method of claim 4, wherein 상기 방수층 도포공정(S90)은 수회 반복되어 방수층의 두께가 조절되어짐을 특징으로 하는 파형강판 구조물의 방수방법.The waterproof layer applying process (S90) is repeated several times waterproofing method of the corrugated steel sheet structure, characterized in that the thickness of the waterproof layer is adjusted. 골과 산이 형성된 파형강판이 연속적으로 상,하 및 좌,우로 결합되어진 파형강판 구조물의 방수구조에 있어서,In the waterproof structure of the corrugated steel sheet structure in which the corrugated steel sheet formed with valleys and mountains is continuously coupled to the top, bottom, left and right, 상기 파형강판은 조립홀 위치에 펀칭공(13)이 형성되어 만곡형태로 벤딩되어지고, 상기 벤딩된 파형강판의 표면에 프라이머층(20)이 도포되며, 상기 펀칭공(13)에 볼트(B)와 너트(N)가 끼워져 결합되어지고, 상기 볼트(B)를 포함하는 프라이머층(20)의 상,하 표면에 방수층(30)이 덮혀지도록 도포되어 경화되어지며,The corrugated steel sheet has a punching hole 13 formed at an assembly hole position and is bent in a curved shape, and a primer layer 20 is coated on the surface of the bent corrugated steel sheet, and a bolt B is punched in the punching hole 13. ) And the nut (N) is fitted and coupled, and is applied to the upper and lower surfaces of the primer layer 20 including the bolt (B) so that the waterproof layer 30 is covered and cured, 상기 방수층(30)은 에폭시, 폴리우레탄, 아스콘, 우레탄 또는 이소시아네이트 프리폴리머와 폴리아민이 혼합된 폴리우레아 중 어느 하나로 이루어짐을 특징으로 하는 파형강판 구조물의 방수구조.The waterproof layer 30 is waterproof structure of the corrugated steel sheet structure, characterized in that made of any one of polyurea mixed with epoxy, polyurethane, ascone, urethane or isocyanate prepolymer and polyamine. 삭제delete
KR1020070048328A 2007-05-17 2007-05-17 A Waterproof Method and Waterproof Structure of Corrugated Steel Plate Structure KR100878008B1 (en)

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KR20190066947A (en) * 2017-12-06 2019-06-14 대도테크 주식회사 Punching method for corrugated steel plate
KR102339930B1 (en) 2021-06-04 2021-12-15 이석호 Filler for corrugated steel plate bolted part waterproofing and the waterproof structure of corrugated steel plate structure using the same

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KR100989664B1 (en) * 2010-03-10 2010-10-26 성일기계공업 (주) A water tank polyurea coating panel its manufacture method thereof

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JPH116144A (en) * 1997-06-17 1999-01-12 Jun Kobayashi Connected corrugated plate and waterproof connection method therefor
JPH11303330A (en) * 1998-04-23 1999-11-02 Oriental Metal Kk Waterproof reinforcing structure
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KR20190066947A (en) * 2017-12-06 2019-06-14 대도테크 주식회사 Punching method for corrugated steel plate
KR102002558B1 (en) * 2017-12-06 2019-07-22 청암이앤씨 주식회사 Punching method for corrugated steel plate
KR102339930B1 (en) 2021-06-04 2021-12-15 이석호 Filler for corrugated steel plate bolted part waterproofing and the waterproof structure of corrugated steel plate structure using the same

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