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在分析海相软土工程性质和借鉴日本关西机场工程经验数据的基础上,基于Terzaghi一维固结理论以及二维Biot固结理论,分别进行某大型填海造地工程海上通道的一维和二维固结沉降数值模拟分析,得出海上通道沉降分析结果与规律,并与采用双频GPS和高精度水准仪相结合的方法联测出的沉降监测数据进行对比,预测海上通道最终沉降量.计算结果表明:沉降分析结果与实测数据吻合较好,预测的海上通道沉降、超静孔隙水压力发展趋势及最终沉降量可靠.
Based on the analysis of the engineering properties of marine soft soil and the experience data of Kansai Airport project in Japan, based on Terzaghi one-dimensional consolidation theory and two-dimensional Biot consolidation theory, one-dimensional and two- Dimensional consolidation settlements, the results and regularity of the subsidence analysis of the sea passage are obtained, and compared with the subsidence monitoring data measured by dual-frequency GPS and high-precision water level method to predict the final settlement of the sea passage. The results show that the settlement analysis results are in good agreement with the measured data, the predicted submarine channel settlement, the development trend of excess pore water pressure and the ultimate settlement are reliable.