压密注浆顶升效应的研究

Research on lift effect of compaction grouting

运用Geostudio软件中的SIGMA/W模块模拟了上海4 000 t储液槽的压密注浆纠偏过程,对比了不同注浆深度对顶升效应的影响,以及上海常见的四类土的注浆顶升效应,分析结果显示压密注浆的纠偏量级为10-1m,注浆深度宜不大于底层加固深度的一半,压缩模量最小的淤泥质土的顶升效果最好。

The paper adopts SIGMA/W formwork of Geostudio software to simulate the compaction grouting correction procedure of 4 000 t stored fluid tank in Shanghai, compares the influence of the various grouting depth on the lift effect and the grouting lift effect of four kinds of common soils in Shanghai, and illustrates the analysis results show the rectification magnitude of the compaction grouting is 10-1 m, its grouting depth should be less than the half of the bottom consolidation depth and the lift effect of the mucky soil with the minimal compression modulus is the best.