放射性廢棄物處置設施之地震影響評估方法回顧;Review of Seismic Hazard Assessment for Radioactive Waste Disposal Facilities

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題名:	放射性廢棄物處置設施之地震影響評估方法回顧;Review of Seismic Hazard Assessment for Radioactive Waste Disposal Facilities
作者:	李錫堤
貢獻者:	國立中央大學應用地質研究所
關鍵詞:	放射性廢棄物處置;地震影響評估;地震危害度分析;斷層位移危害度分析;Radioactive waste disposal;Seismic impact assessment;Seismic hazard analysis;Fault displacement hazard analysis
日期:	2018-12-19
上傳時間:	2018-12-20 14:20:52 (UTC+8)
出版者:	科技部
摘要:	放射性廢棄物處置設施之地震影響可包括強地動之影響、斷層錯動與地變形之影響，及各種次生災害之影響等。強地動之估算一般使用方法上已成熟之定值法及機率式地震危害度分析。因處置窖位於地下深處，地振動及海嘯、山崩、土壤液化等次生災害常不構成控制因素，斷層錯動與地變形成為處置窖最需考量的地震影響。地變形主要出現在主斷層的錯移帶及其兩側一定範圍，因為處置設施在選址時就會避開主要斷層，所以主斷層的變形帶也不是處置窖耐震設計上考量的重點。在主斷層以外，難免遭遇到不易探查得到的次要斷層帶或剪裂變形帶。這一些次要斷層帶或剪裂帶在地震時有可能受震而發生位移，影響結構物之安全。因此，本研究擬廣泛蒐集相關資料，先進行放射性廢棄物處置設施之地震影響評估方法回顧，後續研究再進行次要斷層帶或剪裂帶受震位移量評估方法研析及實際應用。 ;Seismic impact to radioactive waste disposal facilities may include strong ground-motion impact, fault displacement and ground deformation impact, and impact by secondary hazards. Estimation of strong ground-motion for a site commonly uses deterministic or probabilistic approach via a seismic hazard analysis which has been mature in methodology. Because a disposal site locates commonly in an underground cavern, ground-motions or secondary hazards by tsunami, landslide, liquefaction etc. are not controlling the design of the disposal facilities, and fault displacement and ground deformation become the control. Fault displacement and ground deformation occur generally at primary fault and its surrounding areas and these may have avoided in selecting the disposal site. Therefore, secondary faulting becomes the issue concerned. In the region close to the primary fault, there may exist secondary faults or shear zones. These weak zones may also move during movement of the primary fault affecting the safety of disposal facilities. This study intends to collect relevant information extensively, and to review seismic impact assessment methods for radioactive waste disposal facilities. Details of fault displacement hazard analysis, including development of method and actual applications, will be conducted in the following projects.
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
顯示於類別:	[應用地質研究所] 研究計畫

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