琼北地区广泛分布着玄武岩残积土,结合海口美兰国际机场二期扩建飞行区地基处理试验段工程实例,总结琼北玄武岩残积土的岩土工程特性,选取原位测试指标作为强夯法有效加固深度的判别标准.通过地基处理前后的静力触探试验、标准贯入试验、重型动力触探试验对比分析,探讨强夯法加固玄武岩残积土的有效加固深度,该项工作可供琼北地区同类地基处理工程借鉴.
Abstract
Basalt residual soil is widely distributed in northern Hainan area. Based on the ground treatment test section of Haikou Meilan International Airport Extension Project, the geotechnical characteristics of basalt residual soil in northern Hainan area are summarized; in-situ test indicators are chosen as the criteria for effective improvement depth by dynamic consolidation. Through the data contrastive analysis of static penetration test, standard penetration test and heavy dynamic probe test, the effective improvement depth of basalt residual soil by dynamic consolidation is discussed, which provides a valuable reference for similar engineering.
关键词
强夯法 /
玄武岩残积土 /
有效加固深度 /
静力触探试验 /
重型动力触探试验
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Key words
dynamic consolidation /
basalt residual soil /
effective improvement depth /
static penetration test /
heavy dynamic probe test
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参考文献
[1] JGJ79-2012,建筑地基处理技术规范[S]. 北京:中国建筑工业出版社,2012.
JGJ79-2012,Technical code for ground treatment of buildings[S].Beijing: China Building Industry Press, 2012.
[2] MENARD L, BROISE Y.Theoretical and practical aspects of dynamic cinsolidation[J].Geotechnique, 1975,23(1):3-18.
[3] LUONGO Y.Dynamic compaetion: Predicting depth of improvement[C]∥Proceedings of ASCE Specialty Conference on Grouting, Soil improvement and Geosythesis. New Orleans: Ladd Geotechnical Special Publication, 1992, 30(2): 927-939.
[4] SLOEOMBE B C. Dynamic compaction in ground improvement[M]. London: CRC Press Inc, 1993.
[5] 张季超.地基处理[M].北京:高等教育出版社, 2009.
ZHANG J C. Foundation treatment[M]. Beijing: Higher Education Press,2009.
[6] 叶观宝,陈望春,徐超.强夯法地基处理有效加固深度的分析研究[J].上海地质,2003,3:22-25.
YE G B, CHEN W C, XU C. Analysis on effective improvement depth of dynamic concolidation[J]. Shanghai Geol, 2003,3:22-25.
[7] 杨武,杨永康,冯春燕,等.静动力排水固结法处理软基试验研究[J].低温建筑技术, 2013,5: 122-125.
YANG W, YANG Y K, FENG C Y, at el. Experimental research of the static and dynamic drainage consolidation method on soft soil ground treatmen[J]. Low Temp Architect Tech, 2013,5: 122-125.
[8] 海南有色工程勘察设计院. 海口美兰国际机场二期扩建工程飞行区工程岩土工程勘察报告[R].海口:海南有色工程勘察设计院,2016.
Hainan Nonn-Ferrous Engineering Investigation and Design Institute. The geotechnical engineering investigation report of Haikou Meilan international airport extension project airfield area project[R].Haikou: Hainan Nonn-Ferrous Engineering Investigation and Design Institute, 2016.
[9] 劳国利.海南岛土类的分布概况及物理力学特性[J].岩土力学, 1988, 9(4): 51-61.
LAO G L. Distribution survey of soils in the Hainan island and their physic-mechanical properties[J]. Rock Soil Mech, 1988, 9(4): 51-61.
[10]张先伟,孔令伟,臧濛.雷州半岛玄武岩残积土的工程地质特性研究[J].岩土工程学报,2014,36(5):855-863.
ZHANG X W, KONG L W, ZANG M. Engineering geological characteristics of basalt rresidual soils in Leizhou peninsula[J]. Chin J Geotech Eng, 2014,36(5):855-863.
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