Abstract:
There are mainly two kinds of geological disasters induced by pipeline construction: geological disasters induced because the stratigraphic texture is damaged during pipeline construction and original geological disasters intensified in view of severity and coverage due to pipeline construction. Taking the Myanmar-China Oil and Gas Pipeline (in Yunnan) as an example, the working conditions in different stages (pipeline pigging, equipment moving onto site, and pipe trench excavation) are comparatively analyzed, and the severity of typical geological disasters induced by construction like landslide, debris flow and collapse is evaluated. Some appropriate preventive and control measures are proposed, such as supporting and retaining, slope cutting and protection, conduction, obstruction, biological engineering, and limitation of human's engineering activities. Actual engineering practices have proved good performance of these measures.