黄河黑山峡大柳树坝坝址岩体渗漏量及灌浆量数值模拟研究

胡瑾; 聂德新; 郭涵宇; 刘汉超

黄河黑山峡大柳树坝坝址岩体渗漏量及灌浆量数值模拟研究

地质灾害防治与地质环境保护国家重点实验室成都理工大学成都 610059

详细信息

作者简介:
胡瑾,从事地质工程,土木工程,环境工程等有关工作.Email: 478428210@qq.com

中图分类号: TV543
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出版历程
- 收稿日期: 2010-05-20
- 修回日期: 2010-10-25
- 刊出日期: 2010-12-25

NUMERICAL SIMULATION OF LEAKAGE AND GROUTING QUANTITY IN DAM ROCK MASS

Geological Disaster Prevention and the State Key Laboratory of Environmental GeologyChengdu University of Technology, Chengdu 610059

摘要

摘要: 大坝坝址岩体的渗漏研究对于大坝的安全运营至关重要。在进行渗漏治理的措施中,灌浆是常见的一种,但目前确定灌浆的各项参数,如配合比,孔距等,需通过灌浆试验花费大量的人财物力及时间才能确定。为快速查清每一种灌浆方案所灌浆量,本文针对模拟坝址水库渗漏灌浆效果的三维数值模拟开展了计算研究。在对大柳树坝坝址岩体地质情况及渗漏情况分析的基础上,将蓄水前的地下水运移规律模拟出,与实际通过钻孔平硐资料及分析得出的实际地下水运移规律做比较,验证对地下水运移规律的假设; 然后将蓄水后的地下水运移规律模拟出,确定地下水的运移规律,了解地下水运移的方向,验证与根据实际情况初步判断的地下水运移方向是否吻合; 最后通过数值模拟确定在一定灌浆浆液配合比的情况下所需灌浆量与实际的灌浆试验结果做比较。得出结果与实际灌浆试验结果吻合,证明通过数值模拟,建立浆液配合比与灌浆效果之间的关系,在类似情况快速地选取配合比是可行的。
- 岩体 /
- 渗漏量 /
- 灌浆量 /
- 数值模拟
Abstract: Grouting is a common measure for leakage control in dam rock mass. , Currently the physical grouting test is used to determine the parameters such as grouting ratio and pitch. It must spend a lot of time and effort. This paper develops a 3-dimesional numerical simulation test of grouting seepage for rapid determining grouting schemes. It uses a dam site with known geological conditions and analysis of rock leakage. It simulates the migration regularity of groundwater water before store water in the reservoir. The simulated results are compared with actual drilling data and ground water migration patterns in flat adit. The assumption of groundwater migration rule is also compared. It then simulates the groundwater reservoir migration regularity of groundwater, simulates and understands migration regularity of groundwater, and the direction of migration. The preliminary judgment is done according to the actual situation of groundwater migration direction. Finally, numerical simulation determines the certain proportion of slurry grouting for grouting quantity and the situation of the actual grouting test results. The results show that the numerical simulation test can establish the relationship between mix design of slurry grouting and the effect of grounting. This relationship can be used for quick selection of the mix design in similar proportions.
- Rock Mass /
- Dam /
- Leakage /
- Grouting

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