粉煤灰填埋场处理方案探讨

Soil Improvement For a Fly-Ash Landfill Site

通过现场踏勘以及分析某粉煤灰填埋场地的工程地质勘察资料,获得了填埋场地相关的自然环境概况、水文地质条件、土层的物理力学等指标,并根据厚层粉煤灰填土的特殊性质,综合分析了多种常用的地基处理方法,比较了其中的优势及缺陷,以及分析各种方法对场地条件的适应性等,从中比选出适应该场地的地基处理方法为深层搅拌桩法和粉喷桩法,然后通过方案设计显示出了推荐方案能够满足建筑物对场地的要求,为今后类似场地的工程提供了借鉴。

This paper presents the geotechnical investigation results of a landfill site for the fly-ash. The site conditions such as, natural environment, hydrological conditions and physical and mechanical properties of the subsurface soils are induced in the paper. Several ground improvement methods are considered by comparing their advantages and disadvantages and the optimum ground improvement method is selected. The deep mixes by using both wet slurry and dry cement powder methods. The construction results indicate that the soil improvement method selected was successful.