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该文以福州港可门作业区4#、5#泊位工程作为研究对象,将塑料排水板-强夯联合加固法应用于软基处理工程。为验证处治效果,对软土地基展开了现场监测分析,监测项目包括地表沉降和孔隙水压力。基于Terzaghi-Randulic固结本构理论,建立了塑料排水板-强夯联合加固的ABAQUS有限元计算模型。将有限元理论计算结果与现场实践监测结果进行对比,结果显示理论计算沉降接近实际监测值。在验证了ABAQUS有限元计算的适用性后,通过该方法设计不同排水板间距、不同排水板长度的正交计算工况,分别计算不同工况的固结度大小,以此评价最优加固效果,为工程实际提供依据。
In this paper, the project of 4 # and 5 # berths in Kemen operation area of Fuzhou Port was taken as the research object. The plastic drainage board - dynamic compaction and consolidation method was applied to the soft foundation treatment project. In order to verify the treatment effect, on-site monitoring and analysis of soft ground has been carried out. The monitoring items include surface subsidence and pore water pressure. Based on the Terzaghi-Randulic consolidation theory, a ABAQUS finite element model of plastic drainage plate-dynamic consolidation was established. Comparing the result of finite element analysis with the result of on-site monitoring, the result shows that the theoretical settlement is close to the actual monitoring value. After verifying the applicability of the ABAQUS finite element method, the orthogonal calculation conditions of different drainage board spacings and different drainage board lengths are designed by this method, and the consolidation degree of different working conditions is calculated respectively to evaluate the optimal reinforcement effect , To provide the basis for the actual project.