This study proposes to use a method of nonlinear, nonstationary data processing and analysis, i.e., the Hilbert-Huang transform (HHT), to explore and characterize the signatures of soil nonlinearity and/or liquefaction from earthquake ground recordings. The paper first summarizes symptoms of soil nonlinearity and liquefaction shown in earthquake ground motion recordings. It then reviews the Fou...

This paper undertakes liquefaction analysis with simplified procedures standard penetration test (SPT) data and cone (CPT) obtained from an offshore wind farm in the Changhua area. The soil resistance calculated by SPT-based procedure suggested Japan Railway Association was agreement laboratory results. CPT is widely used site investigation of farms. However, Taiwan’s registered professional en...

Soil-liquefaction-related hazards can damage structures or lead to an extensive loss of life and property. Therefore, the stability safety against soil liquefaction are essential for evaluation in earthquake design. In practice, simplified analysis procedure associated with numerical simulation is most used approach evaluating behavior effectiveness mitigation plans. First, occurrence evaluated...

The amount of wood residue is used as a measurement of the extent of wood liquefaction. Characterization of the residue from wood liquefaction provides a new approach to understand some fundamental aspects of the liquefaction reaction. Residues were characterized by wet chemical analyses, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (...

ABSTRAKPada hari Minggu, 5 Agustus 2018 pukul 19:46 WITA, gempa bumi mengguncang wilayah Labuan, Lombok, Nusa Tenggara Barat dengan skala magnitudo M7,0. Akibat guncangan tersebut, terjadi peristiwa likuefaksi di sebagian Provinsi dan menimbulkan kerusakan yang signifikan. Peristiwa dapat apabila mengalami peningkatan tekanan air pori dipicu oleh sehingga mengakibatkan tanah kehilangan kekakuan...

Recent ground failure case histories after 1994 Northridge, 1999 Kocaeli and 1999 Chi-Chi earthquakes revealed that low-plasticity silt-clay mixtures generate significant cyclic pore pressures and can exhibit a strain-softening response, which may cause significant damage to overlying structural systems. In this study, results of cyclic tests performed on undisturbed specimens of ML, CL, MH and...

Liquefaction of human semen involves proteolytic degradation of the seminal coagulum and release of motile spermatozoa. Several members of human kallikrein-related peptidases (KLKs) have been implicated in semen liquefaction, functioning through highly regulated proteolytic cascades. Among these, KLK3 (also known as prostate-specific antigen) is the main executor enzyme responsible for processi...

The wood biomass was liquefied by the pressurized hydrothermal method. The wood biomass powder in the different particle size, which was pulverized by a vibration mill, cutter mill and grinder, was used for the liquefaction. The liquefaction material was biomass slurry, which was prepared by mixing the wood biomass powder and water together (1:9). After filling the biomass slurry in a pressure ...

A comprehensive experimental study that quantifies the influence of coupled compression and shear wave loading on liquefaction susceptibility sands is presented. Such typical in situ, leads to complex principal stress rotation, which turn impacts potential for soils even if cyclic intensity remains constant. The nature degree rotation caused by this are significantly influenced initial consolid...

Dynamic behavior of soil are evaluated relative to a number of factors including: strain level, density, number of cycles, material type, fine content, geosynthetic inclusion, saturation, and effective stress .This paper investigate the dynamic behavior of saturated reinforced sand under cyclic stress condition. The cyclic triaxial tests are conducted on remolded specimens under various CSR whi...