固结灌浆在黔北地区大坝基础处理中的运用及效果分析  

Application and Effectiveness Analysis of Consolidation Grouting in Dam Foundation Treatment in Northern Guizhou

作　　者：简红波 JIAN Hongbo(Zunyi Survey and Design Institute of Water Conservancy and Hydropower,Zunyi,Guizhou,563002)

机构地区：[1]遵义水利水电勘测设计研究院,贵州遵义563002

出　　处：《红水河》2021年第2期114-117,共4页Hongshui River

摘　　要：坝基岩体质量对大坝基础稳定至关重要,在实际工程中往往会遇到各类不良地质问题,在不良地基处理中,固结灌浆是运用较为广泛的手段之一。基于黔北地区不同地质条件下的十余座水库工程固结灌浆设计与检测资料,对固结灌浆前、后岩体的波速与完整性系数提高率进行统计分析。研究结果表明:固结灌浆在坝基处理中的总体效果比较明显,其处理效果与岩体本身结构特征以及布置方式有着非常密切的关系。通过总结经验,为以后在黔北及其他地区的水库工程坝基处理提供参考和借鉴。The rock mass quality of dam foundation is very important to the stability of dam foundation,and various adverse geological problems are often encountered in practical engineering.Consolidation grouting is one of the widely used means in the treatment of adverse foundation.Based on the design and test data of consolidation grouting of more than ten reservoirs under different geological conditions in northern Guizhou,the wave velocity and integrity coefficient improvement rate of rock mass before and after consolidation grouting are statistically analyzed.The results show that the overall effect of consolidation grouting in dam foundation treatment is obvious,and its treatment effect is closely related to the structural characteristics and layout of rock mass itself.By summing up the experience,it can provide reference for dam foundation treatment of reservoir engineering in northern Guizhou and other regions in the future.

关 键 词：黔北地区 坝基 岩体质量 固结灌浆 效果分析 

分 类 号：TV543.5[水利工程—水利水电工程]