摘要
介绍了某沿海内河出海口深厚液化软土地区,5×104m3油罐地基采用碎石桩与塑料排水板综合处理、充水预压加固过程中油罐地基的变形特性;通过对油罐地基地表土与深层土变形的长期观测,取得了大量的原始数据;论述了地基地表土、深层土、油罐地基的平面倾斜与非平面倾斜及环墙摇摆下沉特性;并对油罐地基沉降进行了分析;阐述了该地区油罐之间的合理间距、地基沉降计算深度取值标准和沉降经验系数。
The deformation behaviors of oil tank foundation,which sits on deep-thick liquidated soft soil of the estuarial coastal area,are studied in this paper. The soft soil is treated with gravel piles, plastic drainage bands and water filling preload. Through the long-term monitoring of deformation of the deep soil and surface soil, a great number of primitive data were obtained. In this paper, the plane inclination and non-plane inclination of the surface and deep soil, and the sway settlement of the round wall are discussed. The settlement of the oil tank foundation is analyzed and evaluated. At last, the reasonable distance between tanks,the rational depth for the settlement calculation and empirical factors of the settlement are also presented.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第6期1037-1043,共7页
Chinese Journal of Rock Mechanics and Engineering
关键词
土力学
油罐地基
充水预压
不均匀沉降
碎石桩
塑料排水板
soil mechanics,oil tank foundation,water filling preload,settlement,non-homogeneous settlement
