Mananoma, Tiny and wardoyo, wasis
(2009)
The Effect of Sediment Supply to the Damage of Infrastructures.
The Effect of Sediment Supply to the Damage of Infrastructures.
pp. 1-489.
Abstract
Mountains river has a very dynamics morphological process due to the characteristic of sediment supply system. This system is affected strongly by the dynamic character of rainfall and sediment, two parameters which are varied in time and in space. Therefore it needs a certain management of sediment to minimize the problems caused by the change of river bed due to its sediment supply system . This change, called as degradation and aggradations, may lead to the damage of infrastructure such as intakes, bridges and dams. Some evidence in Progo River shows that lack of sediment supply will create malfunction of infrastructures such as the deformation of Srandakan Bridge structure, the broken of Kamijoro and Sapon Intake. It must be known that the morphology of Progo River, with its 138 km long and of about 2380 km2 catchments area, is strongly affected by the condition of Mt Merapi. This paper will presented the effect of sediment supply to the damage of infrastructures. Analysis will be done beforehand by evaluate degradation and aggradations processes at the middle reach of Progo River accompanied by inventory data of infrastructures failure. Further sediment balance approach will be used to calculate the transport sediment and the change of river bed. The result, then, will be used to propose sediment management in the study area. Through this research, it can be reconfirmed that the sediment management is indeed a complex problem. However, a general guideline on carrying the sediment problems is proposed in this paper. It is consist of system approach and various possible alternatives.
Actions (login required)
 |
View Item |
![[img]](http://repo.unsrat.ac.id/style/images/fileicons/application_pdf.png)
