Construcción de la chimenea de equilibrio en el proyecto hidroeléctrico Quijos mediante el método alimak

Abstract

Research proposes the following: analysis of Alimak construction methods for building the surge in 50 MW Quijos Hydroelectric Project, Cuyuja Parish, Quijos Canton, Napo province. Taking into consideration the vertical sounding SCHE-01 made in the axis of the chimney, with this record different mechanical geotechnical and geo units of materials were interpreted, classify by rock types and defining specific parameters for the appropriate maintenance for each lithology. So the methodology of excavation Alimak system considering technical parameters designed for the construction of the fireplace and the main purpose for which will be launched, operational sequence, choice of work equipment, drilling calculations also explained know and blasting mesh design drilling and firing sequence, ventilation, loading and transport cycle, schedule activities progress of the surge, costing, project duration, safety during construction and environmental aspects. Applying the methodology of the Alimak platform the surge has a length of 116m, to build tanks will cross the volcano – sedimentary demonstrating that the excavations will be in rock type II, III, IV and V, complying with the following cycle work: drilling, charging, blasting, ventilation, des quiche, behind, photography and installation of the rail. The efficiency and the follow – up at all stages of construction of the surge will depend on the organization has been given by the construction and technical personnel in all its areas of work, adhering to the timetable established.