Presented by:
Tupak Obando
Ingeniero en Geología
Máster y Doctorado en Geología
y Gestión Ambiental de los
Recursos Mineros por la UNIA
(Huelva, España)
2008
Landslides Monitoring in Nicaragua
Purpose of landslides monitoring
To understand the past and current behavior of instability of lands,
which allows to evaluate the hazard that these represent, and
particularly, the possibility to preserve constructions.
To know parameters that determine the movement of land,
for generating engineering works, and to control their final stabilizer
effect.
To determine the evolution of soil movements to EMIT FORECASTS
based on their future behavior. It can be defined by variations of
amplitude of the movements which affect the mass of land or the
buildings (cracks), so that they work as material test in juridical
actions
Dipilto, Nueva Segovia, 2008
a)METHODS FOR LANDSLIDES MONITORING
Daily mensuring: It implies the definition of responsible-
observers of rain precipitation or
specific landslides
Cortesía de INETER
Registrations of datas: This task is characterized by an organized
registration. The information is distributed
to the drawees of decision (communal
representatives and local authorities) by
radio communication net
Dipilto, Nueva Segovia
La Tablazon, Nueva Segovia (Nicaragua) 2008
Meteorological Station
Estelí, 2008
Field geology
Santa Teresa, Carazo
San Juan de Río Coco, Madriz, 2008
San José de Cusmapa, Madriz. 2008
Volcán Mombacho, Granada, 2008
Centro de Salud de Murra, Madriz, 2008
Dipilto, Nueva Segovia
El Cuá, Jinotega
Analysis and forecast of the information:
It is an essential task the definition of protocols
that guarantee security and validity of the information
without generating false alarms and rumors.
Mateare, Managua
The analysis of the information allows to settle down
preventive orientations for preserving human lives of people
living in that place. To reach this, it is required a training
process and to have open minds about the meaning of the alerts.
Dipilto, Nueva Segovia, 2008
b) PRINCIPAL INSTRUMENTS FOR LANDSLIDES MONITORING
Radio-communication: A support equipment to transmit and
transfer information between different
places
Dipilto, Nueva Segovia,
2008
Pluviometer: It measures the quantity of rain (in mm) in a specific
place through a direct visual reading. The simple
pluviometer (of a direct visual reading) has a
recipient and a funnel. Data are taken every 12 hours
of pluviometer readings.
Dipilto, Nueva Segovia
Registration of meteorological variables:
In this place, it’s recorded in format digital data based on
weather conditions, temperature, humidity, velocity and
direction of wind, and the quantity of daily accumulated rain.
Locate rupture areas in depth
Quantify the movements against time
Calculate velocity and direction of
displacement of landslides (that is, to
locate the most instability area)
Predict the rupture of soil
Emit a STATE ALERT
Proposition of Systems for Landslides Detection
GEOTECNICAL INSTRUMENTAL
Página siguiente  |