华南地震2024，Vol.44Issue(1)：126-132,7.DOI:10.13512/j.hndz.2024.01.15
上覆堆载作用下砂性地层埋入式筒仓浮力分析
Buoyancy Analysis for Buried Silo in Sandy Stratum Under Overlying Surcharge Load
摘要
Abstract
Henan is one of the three major grain producing areas in China,and the realization of large-scale green grain storage is beneficial to the country and the people.The underground or semi-underground grain storage has the advantages of large reserves and low temperature,which is one of the ideal types of green grain storage,but the anti-floating design of underground massive structure is prominent.This study focuses on the buried cylindrical silo as the research object,conducts model experiments and theoretical research with considering the overlying load around the silo,and analyze the buoyancy reduction coefficient corresponding to the critical state of the silo floating by theoretical inversion.The research indicates that as the uniformly distributed load around the silo continues to increase,the lateral friction resistance of the silo wall to the soil also gradually increases,which inhibitis the upward flotation of the silo.Additionally,there is a certain reduction of buoyancy in soil.In saturated coarse sand,the estimated buoyancy reduction coefficient is 0.945.Increasing the overlying load can enhance the design potential of the buried depth of silo and provide greater possibilities for low-temperature and green grain storage.关键词
模型试验/埋入式粮仓/浮力/折减系数/上覆堆载Key words
Model test/Buried silo/Buoyancy/Reduction factor/Overlying load分类
交通工程引用本文复制引用
吴强,张强,周洋,宋铭,王楷..上覆堆载作用下砂性地层埋入式筒仓浮力分析[J].华南地震,2024,44(1):126-132,7.基金项目
住房与城乡建设部科技计划资助项目(2017-k10-006) （2017-k10-006）
