Engineering geological problems in the Three Gorges Project on the Yangtze, China
Engineering geological problems in the Three Gorges Project on the Yangtze, China
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DOI：
10.1016/s0013-7952(98)00035-0
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发表时间：
1999
影响因子：
7.4
通讯作者：
Chen Deji
中科院分区：
文献类型：
--
作者：
Chen Deji
三峡工程于1994年12月正式开工。然而，自20世纪50年代以来，地质调查一直在进行。这项工作的范围是全面的，涵盖了油藏地质、区域构造和地震活动的方方面面，以及与选址和结构基础条件和建筑材料有关的研究。本文对地质学研究进行了回顾，重点介绍了主要的地质问题。得出的结论是：坝址拥有良好的前寒武纪花岗岩地基；工程构造环境相对简单；现有地震活动水平预计保持在相同的低水平；水库运行预计不会对现有岸坡的稳定性产生重大变化；不会有任何滑坡危及工程的建设和运营。
The Three Gorges Project formally commenced in December 1994. Geological investigations, however, have been in progress since the 1950s. The scope of this work was comprehensive, covering all aspects of reservoir geology, regional tectonics and seismicity, as well as studies related to site selection and structural foundation conditions and construction materials. In this paper a review of the geological studies is conducted with emphasis placed on the principle geological problems. The following is concluded: the damsite offers an excellent foundation in Precambrian granite rocks; the tectonic setting for the project is relatively simple; the existing level of seismicity is anticipated to remain at the same low level; no significant change in the stability of existing bank slopes is expected to occur due to the operation of the reservoir; and no slides will endanger the construction and operation of the project.