地下空間の多角的利用

[CS15-04] Structural safety of pillars in Oya underground quarry and those sense of security

*清木 隆文¹、Bui Huy Thanh²、Dintwe T.K.M.³ (1. 宇都宮大学、2. 前田道路、3. 九州大学)

Keywords:Oya underground quarry, pillars in the quarry, structural safety, sense of secure

First of all, this study focus on evaluating structural safety of Oya underground quarry with considering strength of those pillars by numerical analyses. And it also considered the sense of security of the underground spaces from the view point of visitors by the questionnaire. Those results summarised that simple support system, which has been used in the field, needed additional stability assessment and effective countermeasure for sense of secure to make those visitors reassured for the support system.