ESTEIO has been acting intensively in the market of Ducts in activities that aim at Monitoring (Management) or Implementation of this type of enterprise.<\/p>\n
At Implementation, one of the activities that deserve special attention is related to the pluvial crossing studies existing throughout the interesting sections.<\/p>\n
These studies have the purpose to detail rivers that might present instability risks for pipes and the most favorable conditions for its crossing.<\/p>\n
They are performed in two distinct steps: preliminary studies, in which all rivers throughout the area under study are known; and detailed studies, in which the crossing location is defined. <\/p>\n
Preliminary studies are divided into three sub-activities: hydrological studies; Field survey and preliminary cadastre of crossings; and data analysis.<\/p>\n
Detailed studies, in turn, comprise activities from geologic geomorphologic − geotechnical studies to studies regarding anthropic interventions, being highlighted here bathymetric surveys.<\/p>\n
ESTEIO has advanced technology to perform bathymetric surveys, which consist of determining the variation of the river bed depth in certain sections.<\/p>\n
The system is composed of NAVSTAR GPS satellite trackers, double frequency (L1 and L2), radios for real−time coordinates correction, continuous record digital and analogical echobathymeter, with a transducer installed in one side of the vessel. <\/p>\n
The activity basically consists of obtaining the coordinates of a point provided by GPS, in real time, and the depth of this point provided by the echobathymeter.<\/p>\n
This system is generated by specific software that enables subsequent data analysis and generation of Longitudinal Profiles, Theme Maps, 3D Views, and others. <\/p>\n
At the end of the crossing studies, drawings and reports are elaborated with recommendations regarding the constructive method to be adopted, location for crossing implementation and monitoring suggestions.<\/p>\n
With this technology, ESTEIO participated in several enterprises throughout Brazil and neighbor countries, highlighting services executed in the Amazon region, Urucu−Coari Poli−pipeline and Urucu−Porto Velho Gas Pipe; throughout Brazil-Bolivia Gas Pipe, both in Brazil and Bolivia; and in Uruguaiana−Porto Alegre Gas Pipe. <\/p>\n
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