摘要
对湿陷性黄土地区的延安750 kV智能变电站工程中天然黄土层、DDC工法挤密桩桩间土层和灰土垫层3种地基土进行注水渗水原位试验作了详细介绍,确定了浸润断面边界、断面形态变化、渗入深度、浸润线横向扩散角度、渗透系数等参数。通过对试验结果的整理分析,为地基处理方案的合理选择奠定了基础,同时为湿陷性黄土地区的输变电工程提供了重要依据。
The paper explicates the water injection and seeping in-situ experiment for 750 kV smart substation in Yanan with largescale collapsible loess.The experiment aims at the natural loess layer,the soil layer between the pre-bored compaction lime-soil piles and the lime soil cushion,educes parameters like the boundary of saturated cross section,the conformation change of the cross section,saturation depth,the traverse diffuse angel of the saturation line and the permeability coefficient.The analysis of the experiment result lays the base for rational choice of foundation treatment strategy,also gives an important evidence for power transmission and distribution projects in areas with collapsible loess.
出处
《陕西电力》
2010年第11期84-87,共4页
Shanxi Electric Power
关键词
湿陷性黄土类地区基础
DDC工法挤密桩
注水渗水原位试验
foundation in areas with collapsible loess
DDC engineering methods-based compaction lime-soil piles
water injection and seeping in-situ experiment
