MAJOR GEOLOGICAL HAZARDS AND PRESERVATION OF ROAD REBUILDING ENGINEERING IN THE THREE GORGES ENGINEERING RESERVOIR AREA

When the Three Gorges Engineering has been finished, the road along both banks in the reservoir area of the Changjiang River flooded by reservoir water is about 1 000 kilometers long, which requires the rebuilding of the flooded roads and also the construction of many new roads. This paper discusses the major geological hazards of the rebuilding engineering in the Three Gorges Engineering reservoir area with an example. It points out that the hazards mainly take place in such places as slopes, collapse, and debris flows, as often as those in the mountain area. While the latent geological disasters are the disadvantageous effect on the road engineering due to the reservoir bank rebuilding. At the same time the paper also analyzes the reasons for the disasters and presents some countermeasures. The idea presented in the paper is available for reference in the road construction in the Three Gorges Engineering reservoir area and other areas with similar geological conditions.