信阳师范学院学报（自然科学版）2025，Vol.38Issue(1)：41-50,10.DOI:10.3969/j.issn.2097-583X.2025.01.006
刚果民主共和国利卡西黏土质砾的岩土工程特性
Geotechnical properties of clayey gravel from Likasi,Democratic Republic of Congo
摘要
Abstract
The geotechnical properties of clayey gravel from Likasi,Democratic Republic of Congo,were experimentally investigated. The physical and chemical properties and mineral composition were measured. The Proctor compaction tests,California bearing ratio tests,resilient modulus tests,unconfined compression tests,isotropic consolidation tests,consolidated drained triaxial tests,and falling-head permeability tests were carried out. The geotechnical properties of Likasi clayey gravel were obtained systematically and comprehensively. The results showed that the standard moisture absorption water content of the soil is low. The shapes of soil particles are generally subangular. The soil is well graded and non-expansive. The specific surface area (SSA) and cation exchange capacity (CEC) of the soil are low. That is why the hydrophilicity of the soil is poor. And the soil has good mechanical properties such as shear strength,stiffness,permeability and compaction. The conclusion is that the Likasi clayey gravel can be used as high-quality subgrade fill.关键词
排水抗剪强度/应力-应变-强度特征/渗透性/压实特性/亲水性Key words
drained shear strength/stress-strain-strength behaviour/permeability/compaction characteristics/hydrophilicity分类
土木建筑引用本文复制引用
马全国,孟晨涛,董君,吴黎,王江伟,周葆春..刚果民主共和国利卡西黏土质砾的岩土工程特性[J].信阳师范学院学报（自然科学版）,2025,38(1):41-50,10.基金项目
国家自然科学基金项目(11772290,51009118) （11772290,51009118）
