METHOD FOR MANUFACTURING STEEL SHELL CONCRETE SEGMENT
PROBLEM TO BE SOLVED: To prevent an air trap from occurring inside a space for filling with concrete formed by closing the concave part of a steel shell for a segment with a front formwork, exhaust the air inside the space by a simple constitution, and realize an exhausting mechanism sealing waterti...
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| creator | NAKATSU KENICHI KAWAMURA AKIYOSHI |
| description | PROBLEM TO BE SOLVED: To prevent an air trap from occurring inside a space for filling with concrete formed by closing the concave part of a steel shell for a segment with a front formwork, exhaust the air inside the space by a simple constitution, and realize an exhausting mechanism sealing watertightly after exhausting air. SOLUTION: A concave part 2 for filling with concrete formed in the front side surface of the steel shell 1 for a segment disposed vertically is obturated with the front formwork 3, and simultaneously integrating both members by temporary fixing them so as to form a space 28 in the steel shell 1 for the segment, then concrete 4 fills the space 28 through a concrete pouring hole 20 penetrating the front formwork 3. A threaded hole 23 for exhausting is formed at the upper part of the steel shell 1 for the segment, an exhausting member comprising an exhaust bolt 24 or exhaust plug is fitted to the threaded hole 23 at the filling of concrete, and a watertight bolt 25 is screwed to the threaded hole 23 after unfixing the exhaust members such as the exhaust bolt 24. COPYRIGHT: (C)2008,JPO&INPIT |
| format | Patent |
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SOLUTION: A concave part 2 for filling with concrete formed in the front side surface of the steel shell 1 for a segment disposed vertically is obturated with the front formwork 3, and simultaneously integrating both members by temporary fixing them so as to form a space 28 in the steel shell 1 for the segment, then concrete 4 fills the space 28 through a concrete pouring hole 20 penetrating the front formwork 3. A threaded hole 23 for exhausting is formed at the upper part of the steel shell 1 for the segment, an exhausting member comprising an exhaust bolt 24 or exhaust plug is fitted to the threaded hole 23 at the filling of concrete, and a watertight bolt 25 is screwed to the threaded hole 23 after unfixing the exhaust members such as the exhaust bolt 24. COPYRIGHT: (C)2008,JPO&INPIT</description><language>eng</language><subject>PERFORMING OPERATIONS ; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER ; TRANSPORTING ; WORKING CEMENT, CLAY, OR STONE</subject><creationdate>2007</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20071025&DB=EPODOC&CC=JP&NR=2007276293A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25566,76549</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20071025&DB=EPODOC&CC=JP&NR=2007276293A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKATSU KENICHI</creatorcontrib><creatorcontrib>KAWAMURA AKIYOSHI</creatorcontrib><title>METHOD FOR MANUFACTURING STEEL SHELL CONCRETE SEGMENT</title><description>PROBLEM TO BE SOLVED: To prevent an air trap from occurring inside a space for filling with concrete formed by closing the concave part of a steel shell for a segment with a front formwork, exhaust the air inside the space by a simple constitution, and realize an exhausting mechanism sealing watertightly after exhausting air. SOLUTION: A concave part 2 for filling with concrete formed in the front side surface of the steel shell 1 for a segment disposed vertically is obturated with the front formwork 3, and simultaneously integrating both members by temporary fixing them so as to form a space 28 in the steel shell 1 for the segment, then concrete 4 fills the space 28 through a concrete pouring hole 20 penetrating the front formwork 3. A threaded hole 23 for exhausting is formed at the upper part of the steel shell 1 for the segment, an exhausting member comprising an exhaust bolt 24 or exhaust plug is fitted to the threaded hole 23 at the filling of concrete, and a watertight bolt 25 is screwed to the threaded hole 23 after unfixing the exhaust members such as the exhaust bolt 24. 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SOLUTION: A concave part 2 for filling with concrete formed in the front side surface of the steel shell 1 for a segment disposed vertically is obturated with the front formwork 3, and simultaneously integrating both members by temporary fixing them so as to form a space 28 in the steel shell 1 for the segment, then concrete 4 fills the space 28 through a concrete pouring hole 20 penetrating the front formwork 3. A threaded hole 23 for exhausting is formed at the upper part of the steel shell 1 for the segment, an exhausting member comprising an exhaust bolt 24 or exhaust plug is fitted to the threaded hole 23 at the filling of concrete, and a watertight bolt 25 is screwed to the threaded hole 23 after unfixing the exhaust members such as the exhaust bolt 24. COPYRIGHT: (C)2008,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | PERFORMING OPERATIONS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER TRANSPORTING WORKING CEMENT, CLAY, OR STONE |
| title | METHOD FOR MANUFACTURING STEEL SHELL CONCRETE SEGMENT |
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