| 金沙江某水电站地质构造及其对下坝址的工程影响 |
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| 引用本文： | 谢莉,李渝生,曹建军. 金沙江某水电站地质构造及其对下坝址的工程影响[J]. 水利与建筑工程学报, 2009, 7(2) |
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| 作者姓名： | 谢莉 李渝生 曹建军 |
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| 作者单位： | 成都理工大学,地质灾害防治与地质环境保护国家重点实验室,四川,成都,610059;煤炭科学研究总院西安研究院,陕西,西安,710054 |
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| 摘 要： | 某水电站工程场地位于金沙江中游河段内,属于高山峡谷地貌。坝址区前期受印支运动期NE向构造应力作用,后期又逐渐转向为NNE向。坝址区发育有其宗向斜褶皱构造,轴向延NW-SE向展布。由于枢纽方位与坝址区河谷方向近重合,其宗向斜控制了坝址区的岩层产状、地质构造展布。主要构造应力场的三向应力状态由"潜在逆断型"转变为"潜在走滑型"。地质构造的复杂,成为影响坝址选择及枢纽布置格局的关键因素。同时,对坝址区地质构造的研究,也为坝型设计的合理优化,提供可靠的科学依据。
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| 关 键 词： | 地质构造 构造应力场 下坝址 工程影响 |
Geological Structure of a Certain Hydropower Station in Jinsha River and Its Engineering Influence on Dam Site |
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| XIE Li,LI Yu-sheng,CAO Jian-jun. Geological Structure of a Certain Hydropower Station in Jinsha River and Its Engineering Influence on Dam Site[J]. Journal of Water Resources Architectural Engineering, 2009, 7(2) |
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| Authors: | XIE Li LI Yu-sheng CAO Jian-jun |
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| Affiliation: | 1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection;Chengdu University of Technology;Chengdu;Sichuan 610059;China;2.Xi'an Branch of China Coal Research Institute;Xi'an;Shaanxi 710054;China |
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| Abstract: | A hydropower station is located in the middle reaches of Jinsha River.The topography belongs to an alpine valley.In prophase,the dam area is endured with NE strike tectonic stress in Indosinian movement epoch,and then gradually turning to NNE during anaphase.Qizong synclinal fold structure is developed in the dam area,which spreads along NW to SE in axial direction.For the direction of the valley in the dam area is approximately coincided with the pivotal syncline,the rock attitude and the spread of geologi... |
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| Keywords: | geological structure tectonic stress field dam site engineering influence |
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