水库枢纽区抬升变形水文地质结构模式研究

蒋中明; 李双龙; 丁鹏; 冯树荣; 钟辉亚

doi:10.11779/CJGE201711010

水库枢纽区抬升变形水文地质结构模式研究 English Version

1. 长沙理工大学水利工程学院,湖南长沙 410114;
2. 水沙科学与水灾害防治湖南省重点实验室,湖南长沙 410114;
3. 中国电建中南勘测设计研究院有限公司,湖南长沙 410014

详细信息

作者简介:
蒋中明(1969-),男,教授,博士,主要从事岩土工程等方面的教学和科研。E-mail：zzmmjiang@163.com。论文征稿：论文全文请于2018年1月31日前,电邮至会议秘书处邮箱hnugeo2018@163.com,审查结果将于2018年3月30日通知。根据审查意见,作者修改后的论文终稿请于2018年4月30日前电邮至会议秘书处邮箱：hnugeo2018@163.com。论文限6页以内,论文格式参考《岩土工程学报》。会议论文邮箱hnugeo2018@163.com。本次会议优秀论文将推荐在《岩土工程学报》、《岩土力学》、《湖南大学学报》等正刊或增刊上发表。热忱欢迎相关领域的研究、勘察、设计、施工的科技工作者及研究生踊跃投稿。论文请控制在6页以内。正式论文要求以电子邮件提交大会秘书组邮箱。来稿请注明作者详细通讯地址、E-mail及联系电话。秘书处联系方式：地址湖南省长沙市麓山南路1号,湖南大学土木工程学院;邮编：410082,E-mail：hnugeo2018@163.com;会议咨询及联系人：康馨,18392218715;周苏华,13677312005;刘晓明,18975189922;张桂荣,13814068823。

中图分类号: TV61, TU457
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出版历程
- 收稿日期: 2016-05-27
- 发布日期: 2017-11-24

Modes of hydro-geological structure for uplift deformation near reservoir pivot

1. School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha 410114, China;;
2. Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, China;
3. Power China Zhongnan Engineering Corporation Limited, Changsha 410014, China

摘要

摘要: 水库蓄水引起枢纽区产生抬升变形的现象在国内外水利工程中比较少见。为了解岩体水文地质结构对抬升变形的影响,通过对国内外文献研究,提出了坝基及近坝库岸边坡产生抬升变形的水文地质结构模式：即坝址区存在倾向下游或两岸的相对隔水层,且相对隔水层下存在透水性较大的水文地质结构层。采用流固耦合数值分析方法研究了相对隔水层产状要素变化对抬升变形空间分布规律的影响。研究结果表明：相对隔水层在上游库区的出露区域至坝体距离越近,下游岸坡抬升变形范围越大,抬升变形量也越大;随着相对隔水层倾向下游倾角的增大,枢纽区最大抬升位移呈先增大后减小的变化规律;隔水层倾向角的变化将引起抬升变形空间分布位置的变化。
- 水库枢纽区 /
- 水文地质结构 /
- 相对隔水层 /
- 数值模拟 /
- 抬升变形
Abstract: The uplift deformation phenomenon occurring in the dam due to reservoir impounding appears rarely. To explore the influences of the hydro-geological structure of the rock mass on the uplift deformation, the mode of the hydro-geological structure inducing the generation of uplift deformation near the dam area is put forward through the researches on the existing literatures. The relative impermeable layer inclination to the downstream under the dam foundation and the relative permeable layer lying beneath the impermeable layer are the necessary hydro-geological conditions for the generation of uplift deformation. A numerical method based on the hydro-mechanical coupling theory is employed to study the influences of the variation of attitude elements on the spatial distribution law of uplift deformation occurring near the dam. It is shown that the shorter the distance between the exposure site and the dam, the greater the uplift deformation value. With the increase of the dip angle of the impermeable layer, the maximum uplift deformation near the dam increases firstly and then decreases. It is also indicated that the spatial distribution position of the uplift deformation is directly determined by the variation of dip direction.
- area near reservoir pivot /
- hydro-geological structure /
- relative impermeable layer /
- numerical simulation /
- uplift deformation

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参考文献(16)

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