In order to cross the subterranean structure null active fault

摘要

PPROBLEM TO BE SOLVED: To provide an underground structure crossing an active fault zone that does not impair a function as a structure against an anticipated slip between sliding surfaces. PSOLUTION: The underground structure T1 crossing the active fault zone includes a structure body 1 formed to cross the underground sliding surface (the active fault zone) F, and an outside tunnel 2 formed to surround the outer periphery of the structure body 1 in a crossing section A including the crossing part of the sliding surface F. The structure body 1 includes a crossing part structure 10 formed in the crossing section A, and a general part structure 11 formed in a general section B adjacent to the crossing section A. The crossing part structure 10 is supported at two points at the front and rear of the sliding surface F in the outside tunnel 2. PCOPYRIGHT: (C)2010,JPO&INPIT