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.