本文關(guān)鍵詞： 工程爆破 水中聲波 大黃魚 聲暴露級 指標　出處：《爆炸與沖擊》2017年04期 　論文類型：期刊論文

【摘要】：為了明確有效地評價聲波對大黃魚影響的指標,以水下爆破和濱海山體爆破兩種作業(yè)方式產(chǎn)生的水中聲波數(shù)據(jù)為基礎(chǔ),進行聲波信號的聲壓峰值和聲暴露級分析,并結(jié)合現(xiàn)場大黃魚的行為響應(yīng)進行研究。結(jié)果表明:水下爆破產(chǎn)生的水中聲波瞬態(tài)聲壓幅值較高,能量在瞬間累積到最大值并影響大黃魚的行為和安全;而濱海山體爆破水中聲波的聲壓幅值小,聲暴露時間長,能量的連續(xù)累積造成了大黃魚行為的改變。由于兩種爆破方式作用下的水中聲波在不同的聲暴露時間內(nèi)的聲暴露級較接近,且超過150dB會造成大黃魚的行為異常,因此認為聲暴露級是評價水中聲波對大黃魚影響的一個重要指標。
[Abstract]:In order to evaluate the effect of acoustic wave on large yellow croaker, the acoustic wave data produced by underwater blasting and coastal mountain blasting are taken as the basis. The peak sound pressure and exposure level of acoustic wave signal were analyzed, and the behavior response of Pseudosciaena Crocea was studied. The results show that the amplitude of acoustic wave transient sound pressure produced by underwater blasting is high. The energy accumulates to the maximum in an instant and affects the behavior and safety of large yellow croaker (Pseudosciaena Crocea). However, the amplitude of sound pressure in coastal mountain blasting water is small and the exposure time is long. The continuous accumulation of energy resulted in the change of the behavior of large yellow croaker. The sound exposure level of acoustic waves in water under the two blasting modes was similar in different exposure time. It is considered that the acoustic exposure level is an important index to evaluate the influence of acoustic waves on large yellow croaker (Pseudosciaena Crocea).
【作者單位】： 國家海洋局第三海洋研究所海洋聲學與遙感實驗室;
【基金】：國家海洋局第三海洋研究所基本科研業(yè)務(wù)費專項項目(海三科2013020;2012022)
【分類號】：TB41
【正文快照】： 工程爆破為人類獲取資源、向海洋拓展空間創(chuàng)造了可能,但由此產(chǎn)生的水下噪聲對水生環(huán)境和水生生物的影響,尤其是對聽覺敏感的珍稀海洋哺乳動物和珍貴魚類的潛在不良影響引起了廣泛關(guān)注[1-4]。大黃魚隸屬鱸形目石首科,在我國近海漁業(yè)中占有重要地位[5]。大黃魚具有明顯的行為聲，

本文編號：1492082