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沿海、沿江滩涂是上海土地的储备资源,有计划地进行圈围工程建设可以保证上海用地的平衡。随着城区用地量的不断增加,圈围造地的速度也不断加快,而圈围工程的难度也在不断增加。本文以上海海港新城圈围造地工程为背景,详细介绍了运用岩土工程的固结沉降理论对建设过程中遇到的软弱地基变形问题进行的分析研究,并根据研究结果制定了一系列的处理措施,通过近两年的检验,分析结果与实际情况基本吻合,达到了理论指导实践的目的。并由此对堤坝软弱地基沉降分析手段和堤坝的地基处理提出了一些看法和建议,供类似工程参考。
Coastal and coastal riverside beaches are reserves of land in Shanghai. The planned construction of encirclement projects can ensure the balance of land use in Shanghai. With the continuous increase of land use in urban areas, the speed of encirclement and enclosure has also been accelerating, while the difficulty of enveloping projects has also been on the rise. In this paper, based on the construction of Shanghai Harbor Metro circle enclave, this paper introduces the theory of consolidation settlement of geotechnical engineering in detail and analyzes the deformation problems of weak foundation encountered in the process of construction. Based on the research results, a series of Through the inspection of the past two years, the analysis results are in good agreement with the actual situation and have reached the goal of theoretical guidance and practice. Based on this, some opinions and suggestions are put forward for the settlement analysis of soft foundation of dikes and the foundation treatment of dams for reference of similar projects.