堆载预压排水固结法加固软土地基的固结度分析

The Consolidation Degree Analysis Of Using Load Pre-pressure Drainage Consolidation Method to Consolidate Soft-soil Foundation

摘要:

结合深圳市某填海及软基处理工程实际，分别采用三维固结理论和根据实测孔隙水压力值推算软基的固结度，并加以对比分析，证明其适用性。另外，根据固结度计算公式反推软基的最终沉降量和预测沉降稳定时间，这对于提出工程具体卸载时间具有重要指导意义。

关键词:堆载预压;排水固结法;软基;固结度;沉降

Abstract:

This paper calculates the consolidation degree by using the theory of three-dimensional consolidation and taking account of the monitoring test results of pore pressure dissipation. It is proved that they are practical by contrasting with each other. In addition, according to equation of calculating consolidation degree, it can calculate ultimate settlement and predict the time when settlement is stable by contrary. It has important leading purpose to put forward the time of unloading.

Key words:load pre-pressure; drainage consolidation method; soft-soil foundation; consolidation degree; settlement