This paper presents the experimental study of liquefaction potential for sandy soil in Prambanan Area, Yogyakarta, Indonesia, which underwent due to Mw 6.3 Jogja Earthquake on May 27, 2006. Shaking table tests considering variation acceleration and shaking duration were performed investigate sand. The time stages including start liquefaction, pore pressure dissipation, observed. percentage incr...

To optimize the design of stone columns composite foundation for liquefiable ground improvement in Tibar Bay Port Project, a 3D Finite Element (FE) analysis is implemented on earthquake response and liquefaction mitigation effect. Nine schemes are designed with orthogonal method. Taking peak acceleration excess pore pressure ratio as target indicators, influences four factors, including diamete...

This paper presents a ground response analysis to simulate the liquefaction phenomenon during 2011 Tarlay Earthquake in northern Thailand. The site investigation data and geophysical measurements on 7 sites Thailand were collected. multi-springs element model was implemented finite analysis. Several parameters, such as peak acceleration, velocity, amplification factor, excess pore pressure rati...

A mathematical model of compaction in sedimentary basins is presented and analyzed. Compaction occurs when accumulating sediments compact under their own weight, expelling pore water in the process. If sedimentation is rapid or the permeability is low, then high pore pressures can result, a phenomenon which is of importance in oil drilling operations. Here we show that one-dimensional compactio...

Hydroseismicity was proposed to explain the occurrence of intraplate earthquakes in regions. Koyna Warna region one of the reservoir triggered seismicity zone in India, which is an example of intraplate earthquake region. The seismicity is continuing after 45 years of impoundment of the Koyna reservoir in 1961 and 25 years of impoundment of Warna reservoir in 1985. The excess of previous maximu...

Generally seepage analysis and stress–strain analysis are conducted separately in the analysis of dams with varied water levels, which neglects the impact of soil deformation on seepage. The impact, however, is significant when the water level varies greatly. In this study, a simplified approach for consolidation analysis of unsaturated soil is used to conduct numerical simulations of water-fil...