QUANTITATIVE CONTRAST BETWEEN THE METHODOLOGIES FOR THE VOLUMETRIC EVALUATION WITH CROSS-SECTIONS AND 3D MODELS IN TUNNELS EXCAVATED WITH EXPLOSIVES
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): ELENA CASTILLO LÓPEZ , FELIPE PINA GARCIA , RAUL PEREDA GARCIA , JULIO MANUEL DE LUIS RUIZ , RUBEN PEREZ ALVAREZ
Abstract: This research aims to establish the differences that are produced when calculating the volume of the excavation of a tunnel by means of equidistant cross sections obtained from a 3D model, and the 3D model itself, which was obtained from laser scanner data. The purpose of this research intends to contrast numerically a methodology that has been traditionally applied (cross-sections), and a more recent one which is supported by the use of powerful calculation algorithms that are appropriate for 3D models. All this research is applied to a tunnel that is used as spillway of a large dam that serves to regulate the water of a hydraulic facility. The results of this work justify in a quantitative way that, compared to the modern approach, the classical methodology produces deviations that can reach the 10% of the total volume of the excavation, which implies very high expenses, given the costs of this kind of work.
- Publication Date: 08-Dec-2019
- DOI: 10.15224/978-1-63248-182-5-02
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RESEARCH PROGRESS ON THE INFLUENCE OF DEEP FOUNDATION PIT EXCAVATION ON ADJACENT PILE FOUNDATION
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): BANTAYEHU UBA UGE , GUO YUAN CHENG
Abstract: The formidable challenge confronted by engineers of this century is designing and construction of sustainable infrastructures that support civilization. Such modern structures in urban dwellings inevitably induces new deep excavations to be built close to existing piled foundations. In order to assess this interaction and to cope the practical challenges faced during construction, thus far there have been numerous researches and advances in experience. The remarkable evolution took place over the decades in the deep excavation technology and other relevant technologies has been well detailed in the literature but needs refinement in considering the complex nonlinear stress-strain response of soils corresponding to different unloading effects (stress-path dependent soil deformation) while analyzing the effect of excavation on the nearby pile foundation. Moreover, it is observed that previous experimental studies performed to simulate the problem did not fully take into account the effec
- Publication Date: 08-Dec-2019
- DOI: 10.15224/978-1-63248-182-5-03
- Views: 0
- Downloads: 0