以固结排水法确定砂井间距的分析方法

文章结合工程实例,分析了砂井间距对软基固结度的影响,提出了以固结排水法确定砂井间距的分析方法。该分析方法是根据具体的工况条件和软土的变形特性进行工后沉降分析,得到满足软基工后沉降要求所需的固结度后,再根据软土的固结特性和工期要求分析确定砂井间距。实例分析结果表明,该方法确定的砂井间距是合理的,取得了较好的技术经济效果。

The Analytical Approach that Determines the Sand Drain Space by Consolidation Drainage Method

Based on the engineering practices,the Paper analyzes the impact of sand drain space on the consolidation degree and proposes the analytical approach that determines the sand drain space by consolidation drainage method.With this approach,the postconstruction settlement analysis will be done based on the specific working condition and the deformation character of soft earth.And after the required consolidation degree that satisfies the postconstruction settlement of soft foundation obtained,the sand drain space shall then be defined based on the consolidation character of soft soil and construction period requirement.The case analysis result shows that the sand drain space defined by this approach is reasonable with satisfactory technical and economic effect.