MATA LANGIT NUSAPERSADA
Seeing Beyond Limit
Experiences
MONITORING DEFORMATION AROUND TOL ROAD RELOCATION ALLIGMENT PORONG
This is a study of the 1.5 Trillion Rupiah relocation of a toll road that were being submerged by a mud volcano in East Java
It can be seen from the results of study that the recommendation for toll road relocation alignment (yellow line) is located outside unsafe areas where significant deformation took placed
The rate of deformation in the alignment over the next few years shows the potential for low risk from toll road relocation
MONITORING DEFORMATION AROUND PORT DEVELOPMENT PLAN IN BATANG INDUSTRIAL AREA
This is an example where We have conducted a historical study of deformation using InSAR and GNSS around the 9.4 Trillion Rupiah Batang Port Development Plan
This study is based on a fact that land subsidence and coastal inundation have been occurred around Tanjung Mas Port which have resulted in significant material losses due to disruption of port activities and repair costs after the flood disaster comes.
Based on the results of the study, it was concluded that the deformation around the Batang Port development plan is not too large (only millimeters per year), so it will not have the potential to cause the unnecessary economic loss like what happen in Tanjung Mas when the port is built and operates for decades to come.
MONITORING DEFORMATION AT X OFFSHORE OIL AND GAS PLATFORM
This is an example of the results of deformation observations (e.g. subsidence) using GNSS on the X Oil platform more than 10 years of yearly campaign observation
The subsidence effect on the platform is shown from the disappearance of the landing boat to the disappearance of the cellar deck within few decades as seen in the figures.
This situation has given huge cost for Platform Jacked Up and the maintenance. The subsidence ang their impact has also raised issue on Platform integrity and safeness
MONITORING DEFORMATION AT WEST JAVA ONSHORE OIL AND GAS PLATFORM
This is an example of the results of subsidence observations on the Oil & Gas onshore facilities located around West Java Province using InSAR.
The continuing subsidence has caused flooding during the rainy season due to the appearance of cone subsidence as depletion took place on reservoir down below. The flood has given material loss to the people affected
MONITORING DEFORMATION (e.g. SUBSIDENCE) AROUND NEW ALLIGMENT OF MRT IN JAKARTA CITY
This is an example where We have conducted study of a historical and recent deformation (e.g. subsidence) using InSAR and GNSS around the 25.3 Trillion Rupiah new line of MRT railways in Jakarta area the would be developed in the near future
This study is important, So the level of deformation risk related to safeness on MRT infrastructure would well define. The information is also needed to reduce the unnecessary cost from unexpected deformation failure
Based on the results of the study, it was concluded that the deformation around the new line of MRT is in the level few centimeter per year, so it is a low risk that will not have high potential to cause the unnecessary economic loss as well as safety issue when the line is built and operates for decades to come. Nevertheless continuous monitoring is mandatory
DEFORMATION STUDY AROUND NATIONAL ROAD, TOL ROAD AND RAILWAY IN PEKALONGAN
This is the example of the InSAR study shows that National and Toll Road and railways around Pekalongan is deforming by up to 10 cm per year
As a result of significant deformation, the National and Toll Road are often damaged, fixed and raised which are very costly. Regular fixed is also need for the railways
Estimate maintenance cost on National Road around Pekalongan is 543 Billion Rupiah at once while can be more for Toll Road and Railways
DEFORMATION STUDY AROUND NATIONAL ROAD AND RAILWAY IN SEMARANG
This is the example of the InSAR study shows that National Road and railways around Semarang is deforming by up to 10 cm per year
As a result of significant deformation, the National Road and Railways are often damaged, fixed and raised which are very costly
Estimate maintenance cost on National Road around Semarang is more than 500 Billion Rupiah at once while seemly similar number needed for railways
