扩散型海洋倾倒区容量估算方法初探——以嵊泗上川山疏浚物海洋倾倒区为例

发布时间：2017-12-26 21:05

本文关键词：扩散型海洋倾倒区容量估算方法初探——以嵊泗上川山疏浚物海洋倾倒区为例　出处：《应用海洋学学报》2016年02期 　论文类型：期刊论文

【摘要】：以嵊泗上川山疏浚物海洋倾倒区为例,探讨扩散型海洋倾倒区容量.通过生态敏感目标水质保护要求来确定倾倒活动最大倾倒强度;以最大倾倒强度及倾倒区本身和周边海域港航功能正常发挥为前提,确定水深可淤积厚度,以此为基础,分析系列倾倒量下的区域淤积影响程度,最终确定可接受情况下的倾倒量,从而估算倾倒容量.倾倒活动产生的悬浮物影响对生态敏感目标影响分析,倾倒活动瞬时最大可接受倾倒强度至少为36 000 m3(基于实际工况);在7个月倾倒期内,设定1 500×104、4 000×104、6 000×104m3系列倾倒量,分析倾倒区本身及周边水深敏感目标的淤积程度,最终确定在1 500×104m3倾倒量下,淤积程度可接受,初步估算该倾倒区的容量为1 500×104~2 000×104m3.
[Abstract]:In Shengsi Sichuan mountain dredged material disposal area as an example, to explore the diffusion of ocean dumping capacity. Through the ecological sensitive target of water quality protection requirements to determine the maximum intensity of dumping dumping; with the greatest strength and the dumping dumping area itself and the surrounding sea port functions as the premise, can determine the depth of sediment thickness, on this basis, the influence analysis of regional deposition amount of series of dumping, and ultimately determine the acceptable amount of dumping cases, in order to estimate the influence of dumping capacity. The effects of suspended solids on the dumping of ecological sensitive target, dumping the instantaneous maximum acceptable dumping intensity of at least 36000 M3 (based on the actual condition); in the 7 month period of dumping in the 1500 set, x 104, x 104, 6000 x 4000 104m3 series of dumping, analysis of siltation dumping area itself and the surrounding water sensitive target, finally determined to be 1500 * 104m3 Under the dumping, the degree of deposition is acceptable. The initial estimate of the dumping area is 1500 * 104~2 000 x 104m3.
【作者单位】：国家海洋局宁波海洋环境监测中心站;
【基金】：国家海洋局东海分局青年海洋科学基金资助项目(201323) 中央分成海域金经费支出项目(环保类)资助项目(国海办自[2013]551号)
【分类号】：P75;X55
【正文快照】： (国家海洋局宁波海洋环境监测中心站,浙江宁波315040)目前我国允许海洋倾倒的疏浚物主要为Ⅰ类疏浚物即清洁疏浚物[1],清洁疏浚物由于其毒性较小,对海洋环境的影响主要体现在以下两方面,一方面倾倒后导致倾倒海域悬浮物含量的增加,将对海洋生态环境产生影响,如由于水体中悬浮

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