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近30年来,随着沿海地区经济的发展,基础设施建设大规模展开,特别是珠三角地区围海造地,沿海岸线基础建设和商业开发项目逐年增多。在工程建设过程中,我们发现,海相淤泥层物理-力学特性和工程性能并不是一成不变的,地区不同,地质特性变化明显,厚层-巨厚层淤泥区工程性能非常软弱,尤其是“流砂层”的客观存在,地质勘探资料缺失或不全,使设计和施工均无法达到预期的效果,造成大量病害和安全隐患,常常是引起工程事故的重要因素,进一步提高认识海相古沉积软土,对于减少和预防工程事故有其重要的现实意义。
In the recent 30 years, with the economic development in the coastal areas, the infrastructure construction has been carried out on a large scale. Especially the reclamation of the Pearl River Delta area, infrastructure construction along the coastline and commercial development projects have been increasing year by year. During the project construction, we found that the physical-mechanical properties and engineering performance of the marine silt layer are not static, and the geological characteristics change obviously in different regions. The engineering performance of the thick-thick thick silt area is very weak, especially the “ The objective existence of ”sand-flow layer" and the missing or incomplete geological prospecting data make the design and construction fail to achieve the expected results, causing a great deal of diseases and potential safety hazards, and are often the important factors causing engineering accidents. Therefore, Soil, for reducing and preventing engineering accidents has its important practical significance.