In this paper, a ground-based SAR interferometry technology was used to monitor major engineering. This technology has been recognized as a powerful tool for terrain monitoring and structural change detecting. Deformation monitoring for large project has been a hot issue among them. According to GBSAR interferometry principle and characteristics of IBIS system, the authors analysis the error so...

A performance study is considered to be reliable method for comprehending deformations associated with deep excavation. To gain insight into the laws governing ground that are excavation, details of 88 cases were collected and analyzed in Beijing. The results compared worldwide case histories. Field data selected survey behavior examine correlation between deformation position magnitude final (...

In recent years, Persistent Scatters (PS) Synthetic Aperture Radar Interferometry (InSAR) technology has been proved to be a powerful tool that can provide high resolution information on topology and ground displacement monitoring of up to millimetric accuracy. In this project, we studied the ground deformation of the area of interest (AOI) in Hong Kong urban area by means of PSInSAR technology...

We demonstrate here a computer code for calculation of time series and also mean and linear deformation rates from a set of coregistered unwrapped differential interferograms using a linear leastsquares inversion technique based on the small baseline subset (SBAS) algorithm. The computer code is written in C and uses a singular value decomposition (SVD) routine from the LAPACK library and the f...

Neutron-rich isotopes with N>60 and A.100 are characterized by strong axial deformation. Strontium isotopes are the most deformed nuclei known so far in this region. Quadrupole deformations of b.0.4 have been deduced for Sr, Sr, and Sr from the lifetimes of the first excited states and from mean-square radii measured by collinear laser spectroscopy @1–5#. According to these results, ground-stat...

[1] Mass redistribution and deformation cause spatiotemporal gravity changes in active volcano areas. The ability of the gravity measurements to detect subsurface magma movement as a precursor to volcanic eruptions is greatly enhanced if gravity changes are analyzed and modeled jointly with ground deformation data. One effective tool for this analysis is provided by the gravity and elevation ch...

We present a systematic analysis of ground state properties of a tunneling system coupled to an Ohmic bath. The nonadiabatic effects induced by coupling with tunneling particle , on the ground state properties of phonons are taken into account. For this we have considered both displacement and deformation of phonons via a variational treatment. The symmetry breaking transition , or the delocali...

Many coastal cities have undertaken reclamation projects to satisfy the land demands of rapid urbanization. However, the foundations of reclaimed land are susceptible to settlement and can have undesirable environmental impacts that could adversely affect these dense, populated areas. In the case of international airports built on reclaimed areas especially, regional-scale deformation must be m...