二灰桩复合地基的设计与试验

The Design and Test of Ash-lime Composite Foundation

在沙岭子电厂二期干灰库软弱地基处理优化设计方案时 ,在对原方案技术经济进行充分论证的基础上 ,提出一种新的处理型式 ,即由灰土桩发展起来的采用电厂废料—粉煤灰掺入一定比例的生石灰制成桩体的二灰桩加固方案 ,根据二灰桩的加固机理 ,对二灰桩复合地基进行方案设计 ,为了验证方案的可行性 ,进行了现场试验 ,并对其检测方法作了分析对比。

During the scheme design about Shalingzi Power Plant's second stage ash storehouse soft ground treatment,the requirement of in situ civilization construction is very strict.Based on the fully technical and economical discussion of primary scheme,the author puts forward a new type of ground treatment,namely the reinforced scheme of two kinds of ash consisting of the wasted fuel ash and lime in proportion.In the paper,the stabilizing mechanism of fuel ash and lime pile is analyzed.And the scheme design of ash-lime composite foundation is carried out.The in situ test is done in order to verify the feasibility of the scheme.Finally,the ash-lime examinational method is analyzed simply.