| 摘要 |
PROBLEM TO BE SOLVED: To improve a manufacturing method of a segment for a shield tunnel to enhance not only production efficiency but also the quality of a product. SOLUTION: A form 10 of the segments corresponding to one circumference of a circle is integrally formed in a state that the cylindrical shaft thereof is made vertical and end frames 13 are alternately mounted on the segments 1 adjacent to each other in a circumferential direction to cast concrete in the end frames. After concrete is cured, the end frames 13 are detached and the end surfaces of the cured concrete segments are used as a form to cast concrete of residual segments. After concrete is cured, concrete is demolded to be separated into a plurality of segments. COPYRIGHT: (C)2005,JPO&NCIPI
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