Landslides/Urulpottal
In olden days the natural calamities due to flood &
storms were rare and only happened at
remote places on the mountain regions.
In the natural conditions of the earth’s structure, the rain
water penetrates into the soil and finds its way through the natural cleavages
in the earth and flows into the brooks/streams and then join the river. Now due
to occupation of the mountain areas and construction of huge structures and leveling
of the hills, caused damage to the ecological features and structure of the
earth formation.
Also the natural vent in the subsoil for water percolation
is blocked in many places due to random and haphazard excavations and
construction activities. As a result, the water induces pressure in the soil
and escapes through the least resistant route and causes sudden outbursts
called “URULPOTTAL or Landslides. Thus by blocking the natural cleavages of the
underground waterway, the subsoil water do not have free outlet. The pressure
due to impounding water- flow, finally bursts open the earth’s surface and come
out with fury and washes off everything in its way.
This is most probably the cause for such calamities. We may
therefore study very carefully the ground conditions and the Geological strata
of the hill areas and protect the natural cleavages/faults in formation of the underground,
so that nothing obstructs the natural flow of the subsoil water. Geological
experts may have to study in detail on this aspect early, so that corrective actions
can be taken to prevent “Man made Calamities”.
Abraham Mangalath Philip
2 comments:
Sir. Is there- any relation between urulpottal and dam in which huge quantity of waterstored?
I disagree to this article. It is 10% fact and 90% imagination. The real causes are not just in the areas affected. What is happening on land cannot increase the rainfall like this. These are effects of other global changes.
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