安哥拉膨胀岩土的特征分析
摘要:结合工程实例,通过现场调查、室内外试验等对安哥拉膨胀岩土的宏观特征、矿物成分、膨胀性、承载力等进行了分析总结。安哥拉的膨胀岩土主要分布于西部沿海地区,地貌单元以剥蚀丘陵为主;含较多亲水矿物;膨胀指标离散性大;对水非常敏感,膨胀性和增湿强度衰减现象是安哥拉膨胀岩土的显著特征。
Abstract:In this paper,the macroscopic characteristics,mineral composition,expansibility and bearing capacity of expansive soil(rock) in Angola are analyzed and summarized by field investigation,indoor and field tests combining with engineering examples.The result reveals that the expansive soil(rock) in Angola is mainly distributed in the western coastal areas,where the geomorphic unit is dominated by denudation hills.This soil contains many hydrophilic mineral components and has large discreteness of expansibility index.It is sensitive to water that leads to the phenomenon of expansibility and strength attenuation after humidification which are the prominent characteristics of the expansive soil(rock) in Angola.
中文标题：
安哥拉膨胀岩土的特征分析
Characteristic Analysis of Expansive Soil (Rock) in Angola
作者：
王迎兵,廖燕宏,夏玉云
Wang Yingbing,Liao Yanhong,Xia Yuyun
作者简介:王迎兵,男,1983年生,汉族,河南许昌人,硕士,工程师,从事岩土工程勘察工作。E-mail:465387158@qq.com
通讯地址：
机械工业勘察设计研究院有限公司, 陕西西安 710043
ChinaJikanResearchInstituteofEngineeringInvestigationsandDesign,Co.,Ltd,Xi'an710043,Shaanxi,China
中图分类号:TU443
doi:10.3969/j.issn.1007-2993.2017.04.002
出版物：岩土工程技术
收稿日期:2017-04-11
网络出版日期:2021-07-06
关键词:安哥拉膨胀岩土,宏观特征,矿物分析,自由膨胀率,地基承载力特征值
Key words:expansive soil(rock) in Angola,macroscopic characteristics,mineral analysis,free swelling ratio,characteristic value of subsoil bearing capacity
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