In the article there is the information about growth of unauthorized works on trunk pipelines and about corresponding economic losses as the result of the works. The structure of interconnecting security system for mentioned objects is offered. The interconnecting security system includes optical, vibroacoustic and seismic data acquisition channels and provides decision making algorithm for the...

Seismic full-waveform inversion (FWI) uses full seismic records to estimate the subsurface velocity structure. This requires a highly nonlinear and nonunique inverse problem be solved; therefore, Bayesian methods have been used quantify uncertainties in solution. Variational inference optimization efficiently provide solutions. However, previously method has only applied transmission FWI with s...

This paper mainly introduces a set of high-speed railway earthquake early warning test system based on LabVIEW, which serves for the indoor prototype early-warning system, is used to simulate wave generation instead seismic sensors. From perspective simulation, (EEW) virtual instrument (VI) technology developed. Through and non-seismic interference are simulated, generated sent, so as carry out...

Abstract This chapter deals with all the precious documented recently published and unpublished studies that address seismic situation earthquakes in State of Kuwait. Kuwait is geographically geologically situated northeastern part Arabian Peninsula. In addition to being close famous Zagros belt earthquakes, local sources inside make it always vulnerable earthquakes. We will review instrumental...

Seismic interferometry is often proposed as a cost-efficient technique for reservoir monitoring including CO2 sequestration due to its low cost and environmental advantages over active source imaging. Although many studies have demonstrated the ability of seismic retrieve surface waves, body wave imaging remains challenging their generally lower amplitudes waves in data. An optimum data acquisi...

The introduction of anthropogenic sounds into the marine environment can impact some marine mammals. Impacts can be greatly reduced if appropriate mitigation measures and monitoring are implemented. This paper concerns such measures undertaken by Exxon Neftegas Limited, as operator of the Sakhalin-1 Consortium, during the Odoptu 3-D seismic survey conducted during 17 August-9 September 2001. Th...

Autoregressive modeling is used to estimate the spectrum of aliased data. A region of spectral support is determined by identifying the location of peaks in the estimated spatial spectrum of the data. This information is used to pose a Fourier reconstruction problem that inverts for a few dominant wavenumbers that are required to model the data. Synthetic and real data examples are used to illu...

Performance based seismic design (PBSD) is a cogent design approach that allows engineers to design structures with a predictable seismic performance for a specified level of hazard. In contrast to the conventional limit state or strength and serviceability based design in which a structure is designed to withstand severe load combinations and be functional under normal load conditions, PBSD go...

Seismic anisotropy is an efficient way to investigate the deformation field within the upper mantle. In the framework of rigid tectonic plates, we make use of recent tomographic models of azimuthal anisotropy for deriving the best rotation pole of the Pacific plate in the uppermost 200km of the mantle. It is found to be in good agreement with current plate motion (NUVEL1, HS3 and NNR). However,...

This paper reports on the damage of Wushi bridge in a recent Taiwan 921 earthquake. Damage to Wushi bridge appeared in the superstructure, the substructure and the approaches. Typical types of damage are discussed and illustrated in this paper. A review of the bridge design specifications in Taiwan is also presented to give the background on the seismic design of Taiwan highway bridges.