超大面积深厚软土桩网复合地基沉降变形观测技术

摘要

In this paper, based on the large area deep soft pile net composite foundation settlement control construction and control of settlement deformation observation construction practices of Chaoshan Station on XiamenShenzhen Railway, de tails of the settlement deformation observation technologies, including the selection of observed cross section and layout principles, test content, the layout of test components, methods of settlement prediction and forecasting calculations, the calculation and analysis of degree of ground consolidation are introduced, predicted and measured data prove the correctness of large area deep soft pile network composite foundation program of Chaoshan station, which provide reference for the con struction of the same type.%结合厦深铁路（广东段）4标潮汕站场超大面积深厚软土桩网复合地基沉降控制施工及沉降变形观测施工实践，详细介绍了沉降变形观测技术，包括观测断面的选取及布置原则、测试内容、测试元器件的布设、沉降预测方法及预测计算、地基固结度的计算及分析，通过预测数据和实测数据的对比，证明了潮汕站场超大面积深厚软土桩网复合地基沉降控制施工方案的正确性，对指导同类型施工有借鉴作用。