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題名 | 以反射隔層改善地下結構耐爆震能力=The Ability of Explosion Resistant Improved by Reflection Layer |
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作者 | 張福安; 邵清安; 戴毓修; | 書刊名 | 中正嶺學報 |
卷期 | 25:1 1996.07[民85.07] |
頁次 | 頁75-98 |
分類號 | 441.57 |
關鍵詞 | 爆震波; 暫態有限元素法; 反射隔層; 地下防護結構; Shock wave; Transient FEM; Reflection layer; Protective underground structures; |
語文 | 中文(Chinese) |
中文摘要 | 貫穿(Penetration)與爆炸(Explosion)為防護結構破壞之主因,然而由貫穿 所造成之破壞對防護結構言較具局部性,由爆炸則可能造成全面性之破壞,故對於如何有效 隔絕爆震波以降低損害,為防爆震之重要課題。本文主要針對地下防護結構在受到傳統武器 攻擊時,分析其力學行為及安全性。 以暫態( Transient )有限元素法模擬結構在爆震波 作用下,對結構所造成之反應,並以在相同炸藥量、起爆點、主體結構型式及邊界條件等情 況時,分析比較防護結構在加入反射隔層前、後,及改變反射隔層位置、厚度等不同狀況下 ,爆震波對結構物所造成反應之變化。 |
英文摘要 | The major reasons of causing failure in the protective structures are the penetration and explosion effects by the weapons. Typically the failure due to penetration is local, but from explosion is overall. Therefore, to reduce the damage level by a shock wave isolation is one of the available effective approachs. In this paper, the mechanical behavior and safety of the protective underground structures that are attacked by conventional weapon are studied. A reflection layer laid over the buried structure is proposed. The explosion blast waves propagating in the soil, pass through the reflection layer and impinge on the buried structure are simulated by the transient analysis of finite element method. Dynamic structural responses due to the explosion between the structures with and without the reflection layer under the same conditions are compared and studied in detail. |
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