Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2001.03a
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- Pages.113-120
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- 2001
A Case Study on the Shallow Overburden Tunnelling with a Frame Slab Method
프레임 슬래브 공법을 적용한 천층터널의 시공법 연구
- Jung, Myung-Keun (ESCO Engineers & Consultant Co., Ltd.) ;
- Park, Chi-Myeon (ESCO Engineers & Consultant Co., Ltd.) ;
- Lee, Ho (ESCO Engineers & Consultant Co., Ltd.) ;
- Kim, Seung-Ryull (ESCO Engineers & Consultant Co., Ltd.)
- Published : 2001.03.01
Abstract
A frame slab method has been proved as a possible and profitable construction solution for the urban tunnels with very shallow overburden and the excavation from the surface Is strictly limited. Since this method allows only a small amount of construction activities in the ground surface, the disturbances to the public and the surface traffic can be drastically reduced compared with the ordinary cut-and-cover method. The construction sequences of the method and the some of critical cautions needed are described in detail. Also a comprehensive numerical analysis including 2-D and 3-D analysis have been performed to verify the stability of the ground during the construction. It is revealed from this study that the frame slab method can be a quite successful solution for the shallow overburden tunnelling in urban area.