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位置：首页 >> 期刊文章
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摘要：
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通过现场调查、二维潮流数模计算和渗流计算,确认长江口深水航道治理工程南导堤S0+600～S1+604区段在强风大潮后发生局部堤身下沉是渗透水流作用下地基表层粉砂自抛石压载软体排搭接处流失所致。采用在渗流下游侧铺盖以延长渗径的工程措施,成功地修复并加固了该段导堤。
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Through field investigations,2D tide and flow mathematical model calculations and seepage calculations,it is confirmed that the local settlement of Section S0+600~S1+604 of the southern training bank for the deepwaterways regulation project in the Yangtze estuary was resulted from the washingaway of the silty sand on the foundation bed through the joints between the bed protection mattresses covered by riprap rocks under the action of seepage flow during gales and high tides.The section of training bank was successfully repaired and reinforced with the laying of protection coures on the downstream of the seepage to extend the seepage path.
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基金项目：
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作者简介：
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参考文献：
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[1] 南导堤S0+600～S1+604局部堤身下沉情况的综合报告[R].上海:长江口航道建设有限公司,2000,6.
[2] 黄明毅.南导堤局部堤身下沉情况分析及加固设计[J].港湾技术,2000,(4).
[3] 谢军.南导堤S0+000～S1+600段导堤南、北两侧水位差二维潮流数模[R].1999,11.
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