淤泥质海岸抛石防波堤预留沉降的初步分析

淤泥质海岸抛石防波堤预留沉降的初步分析 摘要：近年来，渤海湾大量修建码头、港口，而渤海湾西部沿 海绝大部分都是淤泥质海岸，地基土含水率高、渗透性低且可压缩 性和灵敏度高。在这种地基上修建抛石防波堤，防波堤初期的冲击 沉降(瞬时沉降)、后期的固结沉降和次固结沉降都相当大，在工 程计量和工程验收中都不可忽视。但是这种地基固结需要相当漫长 的时间，计量和验收不可能等到地基完全固结再进行测量。文中通 过对滨州港防波堤全面沉降监测数据进行分析，为渤海湾西部抛石 防波堤的石头方量计算、防波堤预留沉降量的计算提供可靠方法。关键字：淤泥质海岸，软弱地基，预留沉降，曲线拟合abstract: in recent years, the construction of bohai bay, port, and the western coastal bohai bay is mostly the muddy coast, the foundation soil moisture content high, low permeability and compressible and high sensitivity. in this foundation to build on the ripped-rock breakwater, breakwater the impact of the early settlement (instantaneous settlement), later consolidation settlement and secondary consolidation settlement are quite large, in engineering measurement and acceptance of work in all cannot be ignored. but the foundation consolidation need quite a long time, measurement and acceptance may not wait until foundation consolidation measured again completely. in this paper, through