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A new computational tool for the follow up of mechanized excavation of tunnels: the case study of the subway line 5-LILAC in São Paulo, Brazil
(Fundação Gorceix, 2018-12-01)
Abstract The management and monitoring of mechanized tunnel excavation parameters are crucial for ensuring the safety, quality and project's time/costs, since these parameters are the only existing elements that enable the ...
Artificial neural networks analysis of Sao Paulo subway tunnel settlement data
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
Artificial neural networks have been used to analyze a number of engineering problems, including settlement caused by different tunneling methods in various types of ground mass. This paper focuses on settlement over ...
Relación carga - Convergencia para túneles en suelos
(Bogotá - Ingeniería - Maestría en Ingeniería - GeotecniaUniversidad Nacional de Colombia - Sede Bogotá, 2019)
Este documento muestra el desarrollo de la simulación numérica de la construcción de un túnel superficial, excavado con máquina tuneladora tipo TBM de doble escudo en una arcilla blanda, cuyo comportamiento es representado ...
Ground Movements due to Shallow Tunnels in Soft Ground. II: analytical interpretation and prediction
(ASCE-Amer Soc Civil Engineers, 2013-04)
This paper considers the practical application of analytical solutions for estimating ground movements caused by shallow tunneling in soft ground using closed-form expressions presented in a companion paper based on linearly ...
Performance of differential pair circuits designed with line tunnel FET devices at different temperatures
(2018-06-06)
This work studies differential pair circuits designed with Line tunnel field effect transistors (TFETs), comparing their suitability with conventional Point TFETs. Differential voltage gain (A d), compliance voltage and ...
GPR applied to mapping utilities along the route of the Line 4 (yellow) subway tunnel construction in Sao Paulo City, Brazil
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
The rapid industrial development and disorganized population growth in huge cities bring about various urban problems due to intense use of physical space on and below the surface. Subsurface problems in metropolitan areas ...
Line And Point Tunneling In Scaled Si/sige Heterostructure Tfets
(Institute of Electrical and Electronics Engineers Inc., 2014)