Frame for segment electors

Abstract

This article is a frame for an erector that is attached to an erector for disassembling existing segments and assembling widened segments in construction work such as underground widening work to expand the cross-section of an existing shield tunnel, construction work for a shield tunnel with a non-circular cross-section shape such as a shape combining a plurality of arcs such as an oval or an ellipse, and construction work for a shield tunnel in which the cross-section shape gradually changes along the tunnel axis direction. It has a generally "H-shaped" consisting of two sides in a side view, and by selectively attaching gripping devices to each side, segments can be gripped in various postures, thereby enabling small-scale segments while corresponding to shield tunnel construction with a complex cross-section shape.

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