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首页> 外文会议>International Conference on Earth Science, Mineral, and Energy >Microzonation analysis using the microsroseismic method based on soil vulnerability index and ground profiles value of wave speed in Piyungan District, Bantul Regency, Special Region of Yogyakarta
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Microzonation analysis using the microsroseismic method based on soil vulnerability index and ground profiles value of wave speed in Piyungan District, Bantul Regency, Special Region of Yogyakarta

机译：基于土壤脆弱性指数的微微谐振法分析，基于秋云仓地区波峰区波峰的土壤脆弱性指数及地面概况价值

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Yogyakarta is one of the earthquake-prone areas because it lies near subduction area, the last recorded occurrence of high intensity earthquake activity on 2006, May 27th had a magnitude of 5.9 SR (Richter Scale) and suffered considerable damage. The Department of Social Affairs said that 6,234 people died, 36,299 people were injured and the earthquake displaced about 1.5 million people. The earthquake also caused damage to 616,458 residential building units in Yogyakarta and Central Java. Under the USGS, the epicenter of the earthquake is about 25 km southeast of Yogyakarta with a depth of 17.1 km mean sea level. Microtremor data with HVSR (Horizontal to Vertical Spectral Ratio) method can be used to determine the value of the predominant frequency spectrum (fo) and amplification factor (A) which describes the dynamic characteristics of the soil. The HVSR analysis method was developed to calculate the ratio of the Fourier spectrum of the microtremor signal to the horizontal component against its vertical component. Calculations regarding the value of soil vulnerability and analysis of subsurface structures are intended to determine the level of vulnerability of an area to earthquake hazards. In the Piyungan sub-district, the thickness of the sediment layer (H) ranges from 5 meters to 75 meters below the surface. The northern part of Piyungan sub-district tends to have a thick layer of sediment which is quite thick reaching 45 meters to 75 meters. While the value of the soil vulnerability index in most of the northern part of the study area has a land vulnerability index value that tends to be greater than 40 × 10~(-6) s~2/cm with a maximum value of 78.62 × 10~(-6) s~2/cm. Most of the study areas have soft soil types (Vs < 175 m/s), medium soils (175 m/s < Vs ≤ 350 m/s) and very dense soils and soft rocks (350 m/s < Vs ≤ 750 m/s).
机译：Yogyakarta是地震 - 易发的地区之一，因为它在郊区面积附近，2006年5月27日的最后一次录制发生的高强度地震活动发生了5.9 sR（Richter Scale）并遭受了相当大的伤害。社会事务部门表示，6,234人死亡，36,299人受伤，地震流离失所约150万人。地震还造成了在日惹和中爪哇省的616,458个住宅建筑单位损坏。在USGS下，地震的震中是东南大约25公里的日惹，深度为17.1公里平均海平面。具有HVSR（水平至垂直光谱比率）方法的微反射数据可用于确定描述土壤动态特性的主要频谱（FO）和放大因子（A）的值。开发了HVSR分析方法以计算微反射信号的傅里叶谱与其垂直分量的水平分量的比率。关于土壤脆弱性价值和地下结构分析的计算旨在确定地震危害的区域脆弱性水平。在Piyungan次区，沉积物层（H）的厚度范围为5米至75米以下。 Piyungan次区的北部往往有一层厚厚的沉积物，相当厚的达到45米至75米。虽然研究区域的大部分北部的土壤脆弱性指数的价值具有往往大于40×10〜（-6）S〜2 / cm的土地脆弱性指标值，最大值为78.62× 10〜（-6）s〜2 / cm。大多数研究领域具有软土壤类型（VS <175米/秒），中等土壤（175米/毫升

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