000009596 001__ 9596
000009596 005__ 20141205150221.0
000009596 04107 $$aeng
000009596 046__ $$k2008-10-12
000009596 100__ $$aBuchheister, Juliane A.
000009596 24500 $$aIdentification of Liquefaction Failures Based on Aerial Images

000009596 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009596 260__ $$b
000009596 506__ $$arestricted
000009596 520__ $$2eng$$aOne helpful tool to detect damages after an earthquake in cities is images analysis. Aerial images can be taken before and after an earthquake. By comparing both images it is possible to analyze the damages that are caused by the earthquake event. It is important to find out as soon as possible where the biggest damage to structures and lifelines has happened in order to start immediate help and reduce further risk. Especially in urban areas the analysis of the damage defines the remedial action. Certain damages can be referred clearly to the soil such as large ground deformations, ground failures or lateral spreading. One of the reasons is soil liquefaction. Based on soil-structure interaction, liquefaction can cause severe damage e.g. tilting and sinking of buildings next to sand volcanoes. Aerial photogrammetry, satellite images and SAR laser profiling data are utilized to supply many opportunities for determination of ground displacement and liquefaction failures depending on resolution and measuring accuracy. In this paper, first soil liquefaction and photogrammetric measures are explained, second, the process of analyzing the images with focus on building damage associated with liquefaction failure is described and third the knowledge is applied on a case study in Adapazari after the 1999 Kocaeli earthquake. Especially in the old city centre numerous liquefaction events were reported. Aerial images are available before and after the earthquake as well as soil information based on borings.

000009596 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009596 653__ $$aLiquefaction, aerial image, photogrammetry, soil-structure interaction, damage, case study 

000009596 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009596 720__ $$aBuchheister, Juliane A.$$iRezaeian, Mehdi
000009596 8560_ $$ffischerc@itam.cas.cz
000009596 8564_ $$s452789$$uhttps://invenio.itam.cas.cz/record/9596/files/09-01-0029.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 09-01-0029.
000009596 962__ $$r9324
000009596 980__ $$aPAPER