近年來,由於包括都市捷運及下水道等工程之推動,潛盾施工法在國內不論是在技術上或是經驗上均有長足的進步,已成為常用的隧道施工法之一。對於潛盾施工災害的類型及其發生原因與破壞機制的深入探討,應有助於增進潛盾隧道施工之安全性與經濟性。潛盾施工乃屬地表下工程,所面對的是不同的地質土層,而災害類型也因而各異,常必須以不同的方式處理。若能將實際災害案例處理之關鍵方法及因應對策加以歸納分析,應可有效提供相關經驗,以提昇施工單位的警覺性及災害應變的能力。因此,本研究首先蒐集國內曾發生之潛盾隧道施工災害案例及相關因應對策,針對各種災害的類型分析探討其發生原因與破壞機制。由歸納分析中,得知潛盾施工之開挖面經常是災變發生之關鍵,因此,本研究乃以開挖面之穩定為重點,提出相關處理機制,以期有效提昇潛盾隧道施工專業知識及工程技術,達成避免重蹈覆轍與減少災害的目標。
The project that the rapid transit system is gave impetus has at the technology and the experience makes great strides in recent years. This system has become one of tunnel technology which the engineering is familiar. In order to promote security of and the efficiency the shield tunneling construction, so the study collects the shield tunneling construction disaster case and type, as well as studies each kind of construction disaster occurrence reason and destruction mechanism. These studies may provide the construction to take profit by observing others and can promote to receive business in the construction time vigilance and the disaster receives business strain ability; moreover, this study is built the type and the geological type relations which the shield tunneling construction destroys.