PIRES, M. J. C.; http://lattes.cnpq.br/3808321148565318; PIRES, Marconi José da Câmara.
Resumen:
The study of fractures is of great importance for the extraction of
ornamental rock, as discontinuities can present themselves
closed, open or filled and persistent, making it difficult to
thus disassemble it to be executed, causing loss of material
fractures or damage the entire block by misuse of the
extraction method. The objectives of this paper are: a) the analysis of
discontinuities in the rocky mass, Pocinhos-PB granite; b) map
the existing fractures in the granitoid under study; c) develop a
methodology for the treatment of discontinuities in the massif,
aiming at the extraction of ornamental rocks. The field part of
The survey was carried out in a Pocinhos white granite quarry,
owned by Fuji S / A. The chosen granitoid presents
good conditions for conducting the study, as it is in the process of
research and a pilot bench has already been opened. The rock
has a reserve of about 500,000 m3, with forecast
favorable for future mining. The methodology comprises the steps
a) quarry selection as a study area; b) location,
GPS, the latitudes and longitudes of the points studied in the
outcrop; c) survey of local data on
discontinuities (joints, failures, fractures); d) elaboration of maps of
fractures; e) making drawings using software; f) achievement
statistical treatment in families of joints; g) interpretation of
data and comparison with regional geology. With this work you could
conclude that the analysis of discontinuities and the structure of the
rocky mass and a very important factor for the extraction of
ornamental rocks. It was also concluded that discontinuities
in the studied batholith have a strong correlation with the structure
geology called Patos Lineament, inferring that this regional feature caused the studied joints. In the studied body no
we observed the existence of killings, which is a strong indication
that the monkey has a low degree of compartmentalization.