吴国斌, 代 伟. 波速测试技术在昆明地铁3号线勘察中的应用分析[J]. 云南大学学报(自然科学版), 2012, 34(S2): 215-220.
引用本文: 吴国斌, 代 伟. 波速测试技术在昆明地铁3号线勘察中的应用分析[J]. 云南大学学报(自然科学版), 2012, 34(S2): 215-220.
WU Guo-bin,    DAI Wei. The application analysis of wave velocity testing on Kunming subway line No.3[J]. Journal of Yunnan University: Natural Sciences Edition, 2012, 34(S2): 215-220.
Citation: WU Guo-bin,    DAI Wei. The application analysis of wave velocity testing on Kunming subway line No.3[J]. Journal of Yunnan University: Natural Sciences Edition, 2012, 34(S2): 215-220.

波速测试技术在昆明地铁3号线勘察中的应用分析

The application analysis of wave velocity testing on Kunming subway line No.3

  • 摘要: 昆明地铁3号线东西向穿过昆明市主城区,根据3号线波速测试资料对昆明盆地各土层剪切波速等指标进行了统计分析.对场地土类型、场地类别、岩体完整性及围岩等级进行了划分,沿3号线场地土主要为中软土和中硬土,场地类别为Ⅱ类和Ⅲ类,沿线岩体破碎至极破碎,围岩等级为Ⅴ级.根据软土波速对软土震陷进行了判别,发现全新统软土存在震陷可能.通过剪切波速和标贯试验液化判别的对比,发现在昆明盆地2种方法的判别结果是基本一致的.

     

    Abstract: Kunming subway Line No.3 cut across the main urban area of Kunming City by West-East.According to the No.3 velocity testing data in Kunming basin,data of the shear wave velocity of soil and other indicators are done statistical analysis.We divide the soil type,site category,rock mass integrity and surrounding rock grade.The site is mainly for soft soil and medium hard soil along Line No.3,site classification for class Ⅱ and Ⅲ,the rock was broken,surrounding rock grade was Ⅴ.Discriminanting the subsidencing of the soft soil according to velocity,it is found that the Holocene soft soil subsidence may exist.Through comparison of shear wave velocity and standard penetration test of liquefaction,it is found in the Kunming basin,two methods of discriminant results are consistent.

     

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