Escape Hill as Geotechnical Quick Response Method in Facing Upcoming Tsunami Disaster

11th Aceh International Workshop and Expo on Sustainable Tsunami Disaster Recovery

Munirwan, R.P.^1 ; Munirwansyah^1

Department of Civil Engineering, Syiah Kuala University, Banda Aceh, Indonesia^1

关键词: Model dimensions;    PLAXIS softwares;    Soil classification;    Soil parameters;    Stability results;    Standard values;    Tsunami disaster;    Undisturbed soils;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/273/1/012053/pdf
DOI  :  10.1088/1755-1315/273/1/012053

来源: IOP

【 摘 要 】

High number of casualties due to Aceh's Tsunami in 26th December 2004 was because of lack of information regarding to the disaster among Aceh government and people at that time. Escape building as a quick response for tsunami disaster may become an inevitable action in shoreline of Banda Aceh in facing forthcoming disaster. Moreover, as a result of open space need due to environmentally friendly infrastructure campaign nowadays, the construction of green design of escape hill can be considered. Escape hill can also be functionalized as recreation zone like green park. This article study purpose is to design an escape hill with the rule of geotechnical engineering aspect namely bearing capacity of soil below the escape hill and slope soil stability for the designing escape hill. Deah Baro Village of Meuraxa district was chosen as an escape hill design location. Several undisturbed soil samples were taken within this village for obtaining the existing soil parameters. There were eight hills modelling have been conducted by using Plaxis software. Based on the slope stability result from Plaxis software and by using natural soil as subgrade with soil classification of A-1-b as AASHTO method, the settlement value of final model dimension was 9.117 cm with safety factor of 1.507. The safety factor is still acceptable because of still larger that 1.5 as a standard value for slope safety factor. Escape hill geometry dimension is 12 m high which is larger than tsunami run up wave with soil pressure was calculate per layers of 2 m.