SUMMARY

Using a combination of geophysical methods to survey geological hazards
in Ia Băng and Ja Ve, Gia Lai Province

Nguyễn Ngọc Chân, Nguyễn Tài Thinh,
Lương Bội Lưu, Tống Văn Phú, La Thanh Long

It is the first time a combination of geophysical methods is used and some results have been obtained during the geological hazard investigation in Ia Băng and Ja Ve areas, Gia Lai Province.

The methods of seismic refraction and methods of electrical sounding have been used to define the existence of faults under basalt layer, with breakdowns, block glide and character of geophysical parameters, such as the speed of elastic wave transmission (v), deformation mođule Ed, Poisson coefficient (n), resistivity of the soil (rk)...

The methods of mercury, alpha particle activity, rađon measurement and observation measurement during two seasons of the year have been used to forecast the present situation of  faults and to classify them according to their activities.

Ngày nhận bài: 12-12-2002

Người biên tập: Phạm Năng Vũ