Use of fall cone test to estimation of undrained shear strength of soft clay soils from Region San Martin, Peru

Authors

DOI:

https://doi.org/10.31381/perfilesingenieria.v20i21.6589

Keywords:

undrained shear strength, fall-cone test, laboratory miniature vane, soft clays

Abstract

In this research, we seek to experimentally determine the undrained shear strength (Su) of a soft clay soil by unconventional methods in the practice of Peruvian Engineering. The fall-cone test was used, which is a laboratory equipment commonly used to obtain the liquid limit of soils. To calibrate the results, laboratory miniature vane test equipment was used, which provides direct measurement of Su.

The study was conducted with thirteen undisturbed samples extracted from the localities of Rioja and Moyobamba in the San Martín region, Peru. As a result, an empirical correlation was obtained that allows the undrained shear strength of these soils to be determines from the fall-cone test. The research concludes that, with adequate calibration, the fall-cone is a reliable tool for determining the undrained shear strength of soft soils. Furthermore, its simple and low-cost execution makes it a quick and economical alternative.

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Author Biographies

Miriam Rosanna Escalaya Advíncula, Universidad Ricardo Palma, Lima, Perú.

PhD in Civil Engineering in the area of ​​Geotechnics from the Pontifical Catholic University of Rio de Janeiro, Brazil; Master of Science with a major in Geotechnical Engineering from the National University of Engineering; and Civil Engineer from the National University of San Luis Gonzaga in Ica. She currently works as a Geotechnical Specialist at Jorge E. Alva Hurtado Ingenieros SAC, with extensive experience in the field. She teaches undergraduate courses at the Faculty of Civil Engineering at Ricardo Palma University.

Marco Antonio Hernández Aguilar, Universidad Ricardo Palma, Lima, Perú.

Magíster en Ciencias de la Ingeniería con mención en Ingeniería Geotécnica por la Universidad Católica de Río de Janeiro - Brasil. 1993-1995. Ingeniero Civil CIP 064415, graduado en la Universidad Ricardo Palma 1985-199. Gerente General de Geo Master Ingenieros Consultores S.AC. Consultor Geotécnico de obras de Diseños de Presas de Relave, Estabilización de Taludes, Colocación y Monitoreo de Instrumentación Geotécnica de Campo, estudio y Evaluación de Capacidad Portante, Evaluación Geotécnica del subsuelo mediante perforaciones diamantinas, Estudios Geotécnicos para plantas de tratamientos de aguas residuales, agua de mina y depósitos de relaves, evaluación y diseños de pavimentos, trabajos geotécnicos para estudios hidrogeológicos, para tanques de combustibles. Ejerció la actividad docente en la Universidad San Ignacio de Loyola y Universidad Peruana de Ciencia Aplicadas. Actualmente es Docente Universitario de los cursos de Mecánica de Suelos I y II en el Pregrado de la Universidad Ricardo Palma.

César Giancarlo Rojas Llactas, Universidad Ricardo Palma, Lima, Perú.

Student of the Professional School of Civil Engineering, Faculty of Engineering, Ricardo Palma University, Peru. Collaborator in the development of Scientific Research Projects with a focus on the specialties of Soil Mechanics, Geotechnics and Foundations.

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Published

2024-06-30

How to Cite

Escalaya Advíncula, M. R., Hernández Aguilar, M. A., & Rojas Llactas, C. G. (2024). Use of fall cone test to estimation of undrained shear strength of soft clay soils from Region San Martin, Peru. Engineering Profiles, 20(21), 95–110. https://doi.org/10.31381/perfilesingenieria.v20i21.6589