摘要
湿陷性黄土是一种非饱和的欠压密土，具有大孔和垂直节理。在天然湿度下，其压缩性较低，强度较高；但遇水浸湿时，土的强度则显著降低；在附加压力或在附加压力与土的饱和自重压力作用下，往往具有突然下沉的性质，对工程建设危害性大。在湿陷性黄土地区进行建设，正确评价湿陷性黄土及其场地和地基的湿陷性，对设计、施工采取合理有效的防护措施及确保建筑物安全使用至关重要。
Collapsible loess and loessial soils are unsaturated and underconsolidated, having macro pores and vertical fissures. At its natural water content, its compressibility is rather low and its strength is somewhat high. But, upon wetting its strength will decrease significantly, and then it will collapse either under its own weight with no surcharge or under surcharge load and cause damage to buildings and structures. Therefore, it is very important to assess correctly the collapsibility of the loess foundations in collapsible loess regions and take appropriate counter measures to ensure both safety and economy.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1998年第4期87-91,共5页
Chinese Journal of Geotechnical Engineering
关键词
湿陷性黄土
地基评价
湿陷性
collapsible loess,assessment of collapsibility of collapsible loess foundation.
