@mastersthesis{10902/24593,
year = {2021},
month = {9},
url = {http://hdl.handle.net/10902/24593},
abstract = {ABSTRACT: This Master’s degree thesis aims to study the real behavior of the multi-butted flexible retaining
walls executed in the framework of the Grand Paris Express project. The work consists of the
back-analysis of the calculation of the diaphragm walls and the struts based on the monitoring
data collected during the construction of the lot 1 of the line 16 of Grand Paris project. The
objective is to deepen the knowledge of the behavior of the diaphragm walls and the struts and
to propose some recommendations to be considered in future projects.
The back-analysis concerning the calculation of diaphragm walls presents the study of 36
calculation sections. The available inclinometer data allow the study of the deviations of the
horizontal displacements between the real behavior of the diaphragm walls and the estimates
obtained from the subgrade reaction coefficient modelling. The calculation hypotheses are
therefore analyzed through the calibration of the initial modelling. The behavior of the singular
sections is also discussed in detail and deepened with the proposal of a method for the
estimation of the displacements of the diaphragm walls.
In turn, the struts of diaphragm walls are studied through a back-analysis based on the
measurements of the available extensometers. An initial study of the compressive forces in the
struts is carried out. This study aims to quantify the differences between the measurements
collected and the estimations calculated in the design phase. In addition, the thermic effect in
struts also is analyzed in detail with the study of the thermic gradients and the degrees of
restriction of the supports},
title = {Análisis retrospectivo del cálculo de muros pantalla de la línea 16 del Grand Paris},
author = {Espada Fraile, Javier},
}