摘要
在用堆载预压法处理软基时,大多用土体固结度和承载力指标来评价地基处理效果。但受处理区域土体物理力学性质及地质结构、堆载速率和荷载的实际施工情况等影响,固结度并非定值。为了真实反映固结度,常采用一些监测手段来获取土体固结度。现通过用不同方法计算固结度来评价地基处理效果,结合设计要求,以判断堆载预压卸荷的条件。
Generally, the indexes of consolidation degree and bearing capacity are used to evaluate the effect of foundation treatment when using the preloading method to treat soft foundations. However, the consolidation degree of soft foundations is not constant, since there are many factors affect the results, such as the different physical and mechanical properties of soil and geologic structure in treated area, various rates of heaped loads and applied loads in construction. In order to fully reflect consolidation degree in soft foundation, it is monitoring means that are taken to acquire consolidation degree. Based on the different calculation methods, the consolidation degree is presented; meanwhile the effect of foundation treatment is evaluated. Combing with design requirements, the unloading condition is provided.
出处
《土工基础》
2009年第4期66-68,共3页
Soil Engineering and Foundation
关键词
堆载预压法
固结度
计算方法
preloading method, consiotidation degree, calculation method
