MAJOR GEOLOGICAL HAZARDS AND PRESERVATION OF ROAD REBUILDING ENGINEERING IN THE THREE GORGES ENGINEERING RESERVOIR AREA
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摘要: 三峡工程建成后, 库水回水将淹没沿江(河) 地带的公路约1 000 km. 随着库区的开发, 不仅需要复建被淹没的公路, 恢复其功能, 而且还将大量修建新公路. 通过实例对三峡工程库区公路复建工程中的主要地质病害进行了论述, 指出已发生的地质病害主要是山区常见的滑坡、崩塌、泥石流, 而潜在的地质病害是由于水库库岸再造对公路工程的不利影响; 分析了产生病害的原因, 并提出了防治对策. 对三峡工程库区今后的公路建设、相似地质条件地区的道路建设均具有一定的参考和借鉴意义.Abstract: 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.
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