Abstract On 27 May 2006 at 05:54 local time, a major earthquake with moment magnitude ( Mw ) of 6.3 occurred in Yogyakarta Province. This was widespread causing several damages Province and Central Java One the regencies impacted Boyolali Regency. research aims to evaluate soil liquefaction based on Standard Penetration Tests (SPT) Evaluation necessary minimize damage as preliminary determining...

a prerequisite to seismic hazard assessment is to have knowledge of historical and prehistorical earthquakes. to obtain such data, researchers have already practiced different methods including historical seismology, paleoseismology, and recently archaeoseismology. archaeoseismology is a multidisciplinary approach which ideally tries to find the age, epicenter, and magnitude of past earthquakes...

During consolidation process of saturated cohesive soil the soil stiffness increases. Increase of the effective stress due to dissipation of excess pore pressure causes additional stiffness of soil mass. This phenomenon has a very important effect on the behavior of saturated cohesive soils during dynamic loading. In the current investigation the changes in maximum shear modulus. Gmax and dampi...

Liquefaction is one of the major catastrophic geohazards which usually occurs in saturated or partially sandy silty soils during a seismic event. Evaluating potential liquefaction risks seismically prone area can significantly reduce loss lives and damage to civil infrastructures. This research mainly focused on earthquake-induced risk assessment based Potential Index (LPI) values at different ...

On the 4 th of June, 2000 and 12 September, 2007, Ratu Agung Sub-district, Indonesia experienced significant damage due to liquefaction after earthquakes. Therefore, this study aims determine Liquefaction Potential Index in area. Data shear wave velocity (Vs) was collected using Multichannel Analysis Surface Wave (MASW) method. The measurement location set up on a grid 32 observations points wi...

The phenomenon of soil liquefaction can be an induced effect earthquake shaking where the saturated loses some or all its bearing capacity and stiffness. Likewise, increase water pressure in pores under seismic wave causes a decrease shear strength. As result, becomes liquefied susceptible to producing permanent deformations. is generally unpredictable, neglecting it influence stability structu...

Indonesia is a tropical country threatened by many disasters, such as earthquakes and other collateral hazards (liquefaction). Utilization of micro pile on the liquefaction prone areas quite popular to increase soil bearing capacity. In this research, Eucalyptus Pellita Timber was used micro-piles alternatives. This study aims determine effect timber addition settlement in Some laboratory inves...

Offshore wind power, as an efficient renewable energy source, is being vigorously developed nowadays. However, the liquefaction of marine sand due to earthquakes brings potential safety hazards turbine structures. In this study, a series resonant column and undrained cyclic triaxial tests were carried out investigate stiffness degradation characteristics in offshore farm at East Nan-ao area Gua...

This study refers to the prediction of liquefaction potential of alluvial soil by artificial neural network models. To meet the objective 160 data sets from field and laboratory tests were collected for the development of ANN models. Initially these data sets were used to determine liquefaction parameters like cyclic resistance ratio and cyclic stress ratio by Idriss and Boulanger method to ide...

The work is a primary approach to grab attention on probability of liquefaction hazard in Rangpur City Corporation area. The investigated area of Rangpur was suspected to have high liquefaction potential since the foundation soil consists of loose sandy silt with a very shallow aquifer. Standard Penetration Test (SPT), which follows the general format of the Seed-Idriss simplified procedure for...