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首页> 外文会议>International Symposium on Earth Hazard and Disaster Mitigation >The Role of Geological Forensic Methods for Disaster Assessment in Cigintung, West Java
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The Role of Geological Forensic Methods for Disaster Assessment in Cigintung, West Java

机译：地质法医方法在西爪哇省西孔通灾害评估中的作用

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Geological forensic is a branch of geology which study focused on deciphering facts by using geological science method mainly for legal purposes. The use of geological forensic may be applied to fulfill legal purposes of insurance agency, compensation decisions, and also criminal cases. In this study case, geotechnical and geological engineering are used beforehand in order to identify the cause of geological phenomenon by using quantitative assessment. Soil movement disaster can be caused by several aspects. The assessment of the disaster which is rapid creeping movement of soil is conducted in a disaster case of Cigintung, West Java. The impact of disaster is significant enough to affect up to 700 families, which have to be evacuated from the disaster site, due to massive infra structural damage. The soil of the area is categorized into clay with high plasticity and silt with high plasticity, which liquid limit (LL) is vary between 77.77% - 98.41%. Activity number (A) of each soils are is vary between 0.964 - 2.192. Based on Skempton Chart is indicating montmorillonitic and illitic soils, and also the cause of their characteristic which is swelling if it is wet and shrinking if it is dry. Therefore, by using Seed method and William & Donovan Chart, we can conclude that soil in the area is categorized into expansive soil due to its high tendency of swelling-shrinking characteristic. Chronologically, the soil movement in Cigintung is initiated with first landslide which caused surface water to infiltrate easier into porous soil and reach the expansive soil below it. The second soil movement occurred rapidly and affected almost all infrastructures in the area in 12 hours timespan, due to the change of soil bearing capacity which caused by water infiltration. The accepted soil bearing capacity (qa) with factor of stability (FS)= 3 for square-shaped shallow foundation is between 3.66 T/m~2 - 9.52 T/m~2, while for circle-shaped foundation is between 3.67 T/m~2 - 7.53 T/
机译：地质法医是地质学的一个分支，研究主要用于使用主要用于法律目的的地质科学方法来解密事实。可以应用地质法医的使用，以满足保险机构，赔偿决定以及刑事案件的法律目的。在该研究案例中，预先使用了岩土和地质工程，以便通过使用定量评估来确定地质现象的原因。土壤运动灾难可能是由几个方面引起的。对土壤快速爬行的灾害的评估是在西爪哇Cigintung的灾难案中进行的。灾难的影响足以影响最多700个家庭，由于巨大的红外线结构损伤，必须从灾害现场撤离。该地区的土壤分为粘土，具有高可塑性和具有高可塑性的淤泥，液体限制（LL）在77.77％至98.41％之间变化。每种土壤的活动数（a）在0.964-2.192之间变化。基于Skempton Chart表明蒙脱石和illitic土壤，以及它们的特征性，如果它是干燥的话，肿胀是肿胀的。因此，通过使用种子方法和William＆Donovan图表，我们可以得出结论，由于其膨胀缩小特性的高趋势，该地区的土壤分为膨胀土。按时间顺序上，用首次滑坡发起了Cigintung的土壤运动，这引起了地表水以更容易渗透到多孔土壤中，并在其下方到达膨胀土。由于水渗透引起的土壤承载力的变化，第二次土壤运动迅速发生，并影响了12小时的时间内的所有基础设施。具有稳定性（FS）= 3的接受的土壤承载力（QA）对于方形浅基础，在3.66 T / m〜2 - 9.52 T / M〜2之间，而圆形基础介于3.67吨/ m〜2 - 7.53 t /

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