强夯法处理机场玄武岩风化残积土道基试验研究
摘要:结合海口美兰国际机场二期扩建飞行区地基处理工程,总结飞行区广泛分布的玄武岩风化残积土岩土工程特点,选取大面积地基处理前有代表性的区域作为地基处理试验段,探讨了强夯法的设计及试验方案。通过夯坑夯沉量观测、地面平均沉降观测、静力触探试验、标准贯入试验、道基反应模量试验、固体体积率试验、干密度试验、室内土工试验及工后沉降观测等手段,分析了强夯法的加固效果,提出了分区处理、回填块碎石垫层参数、有效加固深度、停夯标准及工后沉降观测等建议,为后续大面积地基处理设计及施工提供科学依据。
Abstract:Based on the ground treatment of Haikou Meilan International Airport Extension Project,the geotechnical characteristics of basalt residual soil which widely distributed in the airfield area are summarized,typical area is chosen as the ground treatment test section before large area ground treatment,the design and test plan are discussed by dynamic consolidation.Through the data analysis of tamping settlement monitoring,surface settlement monitoring,static penetration test,standard penetration test and heavy dynamic probe test,ground reaction modulus test,solid volume rate test,dry density test,laboratory soil test and post-construction settlement monitoring,reinforcement effect by dynamic consolidation are analyzed,the suggestions of partition ground treatment,backfill crushed-rock layer parameters,effective improvement depth,stop tamping standard and post-construction settlement monitoring are proposed,which provide a scientific basis for the design and construction of subsequent large area ground treatment.
中文标题：
强夯法处理机场玄武岩风化残积土道基试验研究
Experimental Research on Basalt Residual Soil Ground by Dynamic Consolidation at Haikou Meilan International Airport
作者：
谢书领,杨永康,丁学武
Xie Shuling,Yang Yongkang,Ding Xuewu
作者简介:谢书领,男,1965年生,高级工程师,主要从事岩土工程方面的工作。E-mail:SWYT8@126.com
通讯地址：
海南有色工程勘察设计院, 海南海口 570100
HainanNonn-FerrousEngineeringInvestigationandDesignInstitute&Haikou570100.Hainan,China
中图分类号:TU472.31
doi:10.3969/j.issn.1007-2993.2017.02.006
出版物：岩土工程技术
收稿日期:2016-09-26
网络出版日期:2021-07-06
关键词:强夯法,玄武岩风化残积土,静力触探试验,道基反应模量试验,有效加固深度
Key words:dynamic consolidation,basalt residual soil,static penetration test,standard penetration test,heavy dynamic probe test
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