SUMARY

High resolution seismic method in research of geological characteristics and engineering geology

of Vũng Tàu coastal zone and adjacent area

Vũ Bá Dũng, Nguyễn Quang Chiến, Nguyễn Cao Khuê, Phạm Văn Việt

High resolution seismic method (DCNPGC) is one of the key tools in resarch marine geology and mineral resources general and in Geoengineering in Particular. The application of this method in studying and evaluating geological and geo engineering characteristics of the coastal zone off Vũng Tàu and adjacent area has obtained more reliable results in the region. The results of the DCNPGC have allowed us to sudivided the shallow geological formations of the region into 04 sequences correspond Holocen (Q₂); Late Pleistocen (Q₁³); Middle Pleistocen (Q₁²); Early Pleistocen (Q₁¹) and define boundary small of Q₂ and Q₁³; Besides combining the High Resolution Seismic document with the geoengineering document and the result analyzing physical-sample has subdivided the layer according to the geoengineering characteristics include: amQ₂³ is flow state, weak link, poorly load capacity; mQ₂^1-2 is flow state, weak link, poorly load capacity; mQ₁^3b is semi-hard state, hard plastics, medium link, average load capacity; amQ₁^3b is medium tight state, medium link, average load capacity; amQ₁^3b is hard plaslic state-hair hard, medium link, average load capacity; amQ₁^3a is hard plastic state-half hard, medium link, average load capacity; amQ₁² is hard plastic state-half hard, medium link, average load capacity. In addtion, the detection of the fault, the shallow gas pockets hidden risks.

Người biên tập: TS. Nguyễn Tuấn Phong.