Environmental Engineering Reference
In-Depth Information
terrains studied (hausen 1956). The origin of the
information is very diverse. Because of the differ-
ent purpose of each borehole do not have all the
data that characterize a soil, but the most signifi-
cant was required to know.
The treatment we have given to the information
is to gather data with similar characteristics,
eliminating and establishing a mean to achieve
generality.
The classification of terrains begins with an abbre-
viation that includes the different characteristics. The
initial classification will be an R or s depending on
whether volcanic rock or volcanic soil.
Then, and only for volcanic rocks, they continue
with other letter according to R. Del Potro and
Marcel hürliman (2009), correspond to different
volcanic terrains. l is for lavas, WPR for pyroclas-
tics, iPR to slag and aB for gaps (not considered
in our analysis). For the case of soils we create a
set of letter that differentiate be aR for sandy soil
and liM for loamy soil. The third and final sets of
acronyms denote the composition of rock samples.
BoPM and BoPV indicate a massive olivine-
pyroxene basalt or vacuolar olivine-pyroxene
basalt. Bes refers to scoriaceous basalt with cer-
tain degree of welding, unlike eBss that indicates
poorly welded slag. BaFM and BaFV show apha-
nitic basalt massive or vacuolar and TRQB reveals
trashy existence.
While the writing above is present in the earth's
surface as lava flows, pyroclastics also have other
abbreviations like iGn refers no welded ign-
imbrites and lPs for basaltic pyroclastics.
as soils are also eBss or Psc, they are slag
or fall pyroclastics and, connecting with the
sandy-silty nature of the samples was attached
TUFF or Bas, initials as derived from basalt or
Parallel has developed a compendium of com-
mon foundation in this area of the island and was
restrained to be predominant shoes and foundation
slabs to bridge the heterogeneity of the terrain.
however, the foundation type chosen depends on
the type of building constructed, making it, some-
times, requires the execution of deep foundations
(Justo et al., 2006).
in case that requires, micropiles are drilled, as
the constructive approach of the piles cannot be
carried out in volcanic terrain due to the hardness
of it. a peculiarity of the area is to build on basal-
tic pyroclastics by making a hole to fill later with
selected and compacted material (Gonzalez de
Vallejo, 2002; serrano, 1996).
it is also necessary to comment that the town's
commercial activity concentrated in the port has
implied the need to earn ground to the sea through
the implementation of landfill, on which buildings
