饱和强盐渍土地区地基处理技术的应用研究

Appliance Research of Saturate High-saline Soil Ground Treatment

以青海察尔汗盐湖某高速公路地基处理为例,介绍了盐渍土地区地基处理技术以及适用条件;针对饱和盐渍土地基,提出了粒料桩处理技术;针对现场粒料桩施工出现的问题,进行了大量不同工艺的试桩,最终确定了饱和盐渍土地区粒料桩的施工工艺及注意事项。对试桩进行了检验,结果表明:新工艺施工的粒料桩,桩身长度达到了设计要求、桩体密实度、单桩承载力和复合地基承载力得到了很大的提高,满足了工程需要,解决了技术难题。

The paper introduced diverse ground treatment with its appliance condition in saline soil area on the basis of one highway ground treatment in Charhan salt lake . It specified the granular material column treatment according to saturate high-saline soil ground. By the way of experiments with different methods, it made the execution process of granular material column and specification. In response to the examination result, It demonstrated that： the length and density of column, single bearing capacity and composite bearing capacity were enhanced. The new execution process met the project need ,solved the technical problem.