Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Acta Geophysica Polonica

1 2005

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: avulsion-prone zones

Sortuj według:

Ogranicz wyniki do:

Study of geological sedimentary structures of Mekong river banks by ground penetrating radar: forecasting avulsion-prone zones

Nguyen V.G., Ziętek J., Nguyen B.D., Karczewski J., Gołębiowski T.

Acta Geophysica Polonica

2005

Vol. 53, nr 2

167-181

Ground Penetrating Radar (GPR) is a high-resolution near-surface geophysical technique which employs radio waves to map structures and features buried in the ground (or in man-made structures). The results of GPR survey can also be processed and interpreted to obtain physical parameters of rock formation such as dielectric permittivity, electrical conductivity, velocity of electromagnetic waves, attenuation, and other. The georadar method provides continuous graphic format for recorded data which permits rapid semi-quantitative in-field analysis. The paper presents results of a successful application of a Canadian instrument Pulse EKKO 100A for the near-surface geological sedimentary structure investigation in Vietnam. The interfaces, fractures, weakness zones etc. in the geological formation on the Mekong river banks were located and interpreted by georadar cross-sections. The paper presents also results of modelling of electromagnetic field distribution by means of Finite Difference Time Domain method for the Khach San profile at the Mekong river banks.