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赤湾港西防波堤的地基为深厚的淤泥,含水量大,强度极低。堤基处理采取了局部清淤、换填砂垫层、铺设土工织物并与铺压层相结合的方案。考虑到淤泥的强度是随着固结度的增加而增长的特性,将工程分为两期实施。在设计的同时,又做了土工离心模型试验,以验证堤基的稳定性及变形等。本文为在软土地基上筑堤提供了一些设计,试验和施工的新经验。
The foundation of the western breakwater at Chiwan Harbor is deep silt with large water content and extremely low strength. Embankment treatment has taken the local dredging, sand filling for replacement cushion, laying geotextile fabric and the combination of the program. Taking into account the strength of the sludge is increased with the degree of consolidation of the characteristics of the project is divided into two phases. In the design at the same time, we did a geotechnical centrifuge model test to verify the stability of the foundation and deformation. This paper provides some new experiences in design, test and construction for embankment on soft ground.