Geotechnical Design Parameters for a Metro Tunnel from Pressuremeter Tests
Being an in situ test, the pressuremeter provides a reliable assessment of soil parameters, eliminating the influence of sample disturbance. The paper outlines the analysis of pressuremeter data to interpret parameters such as undrained shear strength, pre-consolidation pressure, over-consolidation ratio, and in situ horizontal stress. The test was used effectively in conjunction with borehole data to assess the geotechnical parameters for the design of a metro tunnel. Data from two locations along the metro tunnel alignment are presented here.
KeywordsPressuremeter Tests Undrained shear strength Pre-consolidation pressure In situ horizontal stress Metro tunnel
- Baguelin F, Jezequel JF, Shields DH (1978) The pressuremeter and foundation engineering. Trans Tech Publications, ClausthalGoogle Scholar
- Clarke BG (1995) Pressuremeters in geotechnical design. Blackie Academic and ProfessionalGoogle Scholar
- Krishnan MS (1986) Geology of India and Burma. CBS Publishers, New DelhiGoogle Scholar