长江口12.5 m深水航道运行初期的疏浚效益评价

发布时间：2018-06-21 10:52

本文选题：疏浚效益评价 + 长江口.m深水航道　；参考：《水运工程》2017年04期

【摘要】：构建疏浚货运比、疏浚单方经济效益2个相对指标,同时结合疏浚土的综合利用,评价长江口12.5 m深水航道运行初期的疏浚效益。结果表明:2011—2015年长江口深水航道疏浚货运比趋于下降,已由运行首年的1 083 m~3/万t降至2015年的765 m~3/万t,降幅近30%。近5年来,深水航道疏浚单方经济效益增加明显,2015年已达到142元/m~3,远高于目前国内疏浚费用单价。同时,用于滩涂围垦的航道疏浚土数量相当可观,有利于控制疏浚和造地成本,实现提高长江口疏浚土利用率和增加上海市土地资源战略储备量的双赢局面。当前长江口12.5 m深水航道已进入全面发挥效益的稳定运行阶段。
[Abstract]:Two relative indexes of dredging freight transport ratio and dredging unilateral economic benefit are constructed, and combined with the comprehensive utilization of dredged soil, the dredging benefits in the initial stage of operation of 12.5 m deep water channel in the Yangtze River Estuary are evaluated. The results show that the ratio of dredged freight in the Yangtze Estuary from 2011 to 2015 tends to decrease, from 1,083 mt3 / 10 000 t in the first year of operation to 765 mm3 / 10 000 t in 2015, the decrease is nearly 30%. In the past five years, the economic benefit of dredging in deep water channel has increased obviously, reaching 142 yuan / m ~ (3) in 2015, which is far higher than the unit price of dredging cost in China at present. At the same time, the amount of channel dredged soil used for beach reclamation is considerable, which is helpful to control the dredging and land construction cost, to achieve a win-win situation of improving the utilization ratio of dredged soil and increasing the strategic reserve of land resources in Shanghai. At present, the 12.5 m deep water channel of the Yangtze River Estuary has entered a stable operation stage in which the benefit is fully brought into full play.
【作者单位】：上海河口海岸科学研究中心;交通运输部长江口航道管理局;
【基金】：国家自然科学青年基金项目(41506108) 上海市科学技术委员会基金项目(15DZ1202400)
【分类号】：U616

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