Gestión integral de obras hidráulicas de hormigón: del diagnóstico a la inversión
- Autores: Francesc Pardo Bosch
- Directores de la Tesis: Antonio Aguado de Cea (dir. tes.)
- Lectura: En la Universitat Politècnica de Catalunya (UPC) ( España ) en 2014
- Idioma: español
- Tribunal Calificador de la Tesis: Josep Dolz Ripollès (presid.), Gonzalo Ramos Schneider (secret.), Jose María Varona Ruiz (voc.), Jaume Armengou Orús (voc.), Fernando Martínez-Abella (voc.)
- Materias:
- Enlaces
- Tesis en acceso abierto en: TDX
- Resumen
This doctoral thesis addresses jointly two paramount aspects in the management of the hydraulic structures in operating regime: the damage diagnosis and the investment prioritisation that should allow repairing such damages. The main objective is to provide the technicians responsible for the maintenance and preservation of these structures a series of arguments to help them making decisions that ensure short and long-term sustainable management of a heritage that is fundamental for the development of societies. Firstly, a methodology to dictate the first diagnostic hypothesis of a damaged hydraulic structure is proposed since the maintenance action can only be considered if the source of the problem is known. For that, a detailed analysis of ten dams with some type of damage was conducted. Furthermore, other fifteen dams were explored during technical visits. Based on the experience gained and previous studies in the literature, a theoretical systematic working approach was developed in order to allow the technician establishing a diagnosis. The tasks to be conducted are divided into three broad areas: the study of the "clinic" history of the structure, the field inspection and the early work of cabinets. All these tasks are performed from a technical point of view with a great variety of examples and graphic documentation with the aim of reinforcing their practical usefulness and easing the implementation. The methodology proposed has been validated with the diagnosis of a dam, which despite the several actions undertaken, the pathological process has not stopped. In such case, the conclusions indicate that the damage is caused by the delayed hydration of the free lime in the cement employed in the construction of the dam. This hypothesis was confirmed by the results obtained in the laboratory. The second part of the thesis focuses on the development of the Prioritization Index for the Management of Hydraulic Structures (IPGOH). This is a system of multiple criteria decision aid based on the three axioms of sustainability (society, environment and economy) and it is articulated on a requirements tree inspired by the MIVES method. The final objective is to evaluate and prioritise the heterogeneous maintenance and preservation activities in several hydraulic structures on operating regime each year. The assessment of heterogeneous actions is possible given that the IPGOH includes a preliminary stage of homogenization of damage through the calculation of the Structural Damage (DñE). This stage represents one of the main contributions of this doctoral thesis because allows comparing planned actions as diverse as the dam body, the abutments, the foundation, the reservoir or aspects regarding the hydraulic system. The validation of the IPGOH was conducted by means of the analysis of nineteen actions conducted on dams in operating regime. Among them, twelve actions correspond to private companies and the remaining seven belong to public bodies. The results obtained reveal that the tool is capable to establish a coherent order of the maintenance and preservations actions and it is discriminating enough to avoid any doubts on the decision-making.
