Three widely-available surface wave measurement techniques, including two active-source methods, the Spectral Analysis of Surface Waves (SASW) method and the Multi-channel Analysis of Surface Waves (MASW) method, and one passive-source method, the Refraction Microtremor (ReMi) method, were applied at a complex-layered site. Dispersion relations were compared to one another. Outcomes from the MA...

it is well known that ground-shaking site effect caused by an earthquake can vary significantly within a small distance. this is because at sites having soft soil and/or topographic and basement undulations, seismic energy gets trapped, leading to amplification of vibration that may cause considerable damage to man-made structures. theoretical analysis and observational data have shown that eac...

Site characterization is a crucial component in assessing seismic hazard, typically involving situ shear-wave velocity ( V S ) depth profiling, and measurement of site amplification including period. Noninvasive methods are ideal for soil sites become challenging terms field logistics interpretation more complex geologic settings rock sites. Multiple noninvasive active- passive-seismic techniqu...

the need for clean groundwater resources to have sustainable development in a country is undoubted. due to the importance and high quality of karstic waters in supplying water in iran especially in shahrood city, it is attempted in this research work to recognize and explore karstic waters in southwest of tepal area, shahrood. for this purpose, integration of the results obtained from the metho...

Abstract We describe the flexible multimethod seismic site characterization technique for obtaining shear-wave velocity ( V S ) profiles and derivative information, such as time-averaged of upper 30 m S30 ). Simply stated, approach relies on application multiple independent noninvasive acquisition analysis techniques utilized in a field-based through decision process based primary factors inves...