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Geological Risk Reduction Management Ahead of Tunnel Face
http://hdl.handle.net/10173/1740
http://hdl.handle.net/10173/1740d9cb0ba2-891c-4239-92bf-da25592a9514
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SMS09-156.pdf (718.6 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-02-06 | |||||
| タイトル | ||||||
| タイトル | Geological Risk Reduction Management Ahead of Tunnel Face | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Mountain tunneling | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Geological risk reduction | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Seismic imaging method | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| 著者 |
Ikuma, Toshiyuki
× Ikuma, Toshiyuki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In construction of the mountain tunneling in Japan, the accident resulting from face collapse accounts for about 65% of the total. Therefore, in order to perform tunnel construction safely, it is important to grasp the situation of geology, bedrock and groundwater of an unexcavated part in detail before construction. This paper reports the risk management example which reduced geological risks and performed suitable construction by various geological investigations during construction stage in deteriorated ground that was predicted to be in the mountain tunnel. In these sections of ground, while geological survey had been inadequate in a prior stage, tunnel The recent trend of tunneling is toward larger and longer tunnels. From the viewpoint of safety and efficiency of operation, it is highly advantageous to grasp geological conditions before tunneling. Geological evaluation ahead of tunnel face and face stability are especially an important issue to make effective use of the TBM was started, and face collapse accident was encountered. Since this tunnel has long length and high overburden, suitable and more effective investigation technique which can be performed in a short time is needed during construction. Test for physical properties and consistency of soil applied the concrete slump test was carried out in altered sandy Granite ground. Moreover, fractured and altered zone are distributed repeatedly in Rhyolitic welded tuff ground, it analyzed by the seismic imaging method using three-component geophone. These investigation results were analyzed synthetically, drainage drift and advanced drainage boring were performed, the geological risk was reduced and tunnel construction was continued more safely and economically. | |||||
| 書誌情報 |
Society for Social Management Systems Internet Journal 巻 5, 号 1, 発行日 2009-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2432-552X | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | Society for Social Management Systems | |||||
