—Nature is always a source of inspiration. Natural
production, protection and degradation are more balanced. In
this paper the natural production of shear strength and
degradation of the soils are examined through facts and figures.
Limestones commonly contain only one or two dominant
minerals. They are composite grains made up of large number of
small calcite or aragonite crystals. The term allochem cover all
of these organized carbonate aggregates that make up the bulk
of many limestones. Skempton points (Clay types with varying
percentage of clay size particles) are compared to different
stages in the formation of aggregate grains through natural
processes which results in manifestation of coaxial and
non-coaxial components of shear strength of soils in
shallow/deep marine environment. All these aggregates slowly
reach CCD (Carbonate Compensation Depth). In CCD all the
carbonates in any form are dissolved completely and only mud
(silt and clay) and sand are separated. At this stage both coaxial
and non-coaxial components of shear strength is drastically
reduced and in abyssal plains as evidences show that the shear
strength is barest minimum or residual.
—Allochem, carbonate compensation depth,
coaxial and non-coaxial shear strength, residual shear strength
of soils, Skempton points.
J. Rajaraman and K. Thiruvenkatasamy are with Harbour and Ocean
Engineering, AMET University, Chennai, India (e-mail:
S. Narasimha Rao is with IIT Madras, Director Dredging Corporation of
India, India (e-mail: email@example.com).
Cite: J. Rajaraman, K. Thiruvenkatasamy, and S. Narasimha Rao, "Marine Bio-Geo Based Geo-Technology and Manifestation of Coaxial and Non-Coaxial Components of Shear Strength of Soils," International Journal of Environmental Science and Development vol. 7, no. 2, pp. 126-133, 2016.