南宁轨道交通一号线穿越膨胀岩区工程详勘探讨
摘要:通过分析南宁盆地第三系泥岩工程地质及水文地质条件，并结合南宁轨道交通工程建设特点，探讨了1号线穿越膨胀岩区的岩土工程勘察方法、试验项目及相关注意事项。提出了南宁轨道交通穿越膨胀岩区详细勘察中对钻孔间距及封孔要求、现场描述等内容；其中对室内试验建议补充岩石矿物的鉴定、吸水率和饱和吸水率试验、耐崩解试验、膨胀性试验；原位试验项目建议增加地应力试验、现场基床系数K30试验、现场浸水载荷试验、水平膨胀力试验项目。并针对一些特殊勘察项目，如现场测定基床系数K30、热物理指标及水平膨胀力等提出一些建议。
Abstract:Analyzing the engineering geology and hydrogeological conditions of tertiary mudstone in Nanning,and combining with the characteristics of the Nanning subway,geotechnical engineering investigation methods and test projects and the relevant matters on swelling rock area of Nanning rail transit line 1 were discussed Content of detailed geotechnical investigation about space between boreholes and site description on the swelling rock area across in Nanning rail transit line 1 have been presented;it suggested that authentication on rock mineral,water absorption and saturate water absorption test,slake-durability test,swell ability test could be added into laboratory soil test;ground stress test,K30 coefficient of subgrade reaction in field testation,immersion static load field test and horizontal swelling force test is suggested into in-situ test.Some advises aiming at certain geotechnical investigation such as K30 coefficient of subgrade reaction in field test,thermal physics indexes and horizontal swelling force were presented.
中文标题：
南宁轨道交通一号线穿越膨胀岩区工程详勘探讨
Research on Nanning No.1 Subway Geotechnical Engineering Investigation in Swelling Rock
作者：
黄钟晖1,唐迎春2,3,杨磊1
HUANG Zhong-hui1,TANG Ying-chun2,3,YANG Lei1
作者简介:黄钟晖,1974年生,男,汉族,广西横县人,教授级高级工程师,主要从事隧道及地下工程研究。E-mail:
通讯地址：
1. 南宁轨道交通有限责任公司, 广西南宁 530021; 2. 广西大学土木建筑工程学院, 广西南宁 530004; 3. 广西财经学院管理科学与工程学院, 广西南宁 530003
1.NanningRailTransitCo.,Ltd,Nanning530021,Guangxi,China; 2.CollegeofCivilEngineeringandArchitecture,GuangxiUniversity,Nanning530004,Guangxi,China; 3.CollegeofManagementScienceandEngineering,GuangxiUniversityofFinanceandEconomics,Nanning530003,Guangxi,China
中图分类号:U231.1
doi:10.3969/j.issn.1007-2993.2015.05.001
出版物：岩土工程技术
收稿日期:2014-02-11
网络出版日期:2021-07-19
关键词:地铁勘察,膨胀岩,基床系数,水平膨胀力
Key words:subway exploration,swelling rock,coefficient of sub grade reaction,horizontal swelling force
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基金项目：
基金项目: 国家自然科学基金资助项目（51168004）；南宁市科技基金资助项目（201107020C）
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