Phân tích một số yếu tố ảnh hưởng đến mức độ cố kết khi xử lý nền bằng giếng cát kết hợp với gia tải trước

Abstract

This paper presents the solution for soft soil improvement using sand well combined with surcharge preloading to calculate and estimate the settlement of soft ground. During the study process, the analytical method and Plaxis 2D v8.5 software (Hardening Soil) are used. The findings of calculations are compared with the monitored actual settlement in situ to veryfy which calculation method is more exact. In addition, the effects of distances, lengths and diameters of sand well are examined to determine the corresponding consolidation rate of soft soil. This is a reference basis to provide optimal design solution of weak soil treatment techniques.