摘要
大渡河大岗山高拱坝坝区花岗岩各类岩脉穿插发育,坝区长大裂隙和断层带多沿岩脉分布,严重影响了坝体的抗滑稳定性,为了加固处理,获取固结灌浆的相关参数,进行了试验研究。选择右岸A区、左岸B区作为坝基固结灌浆试区,采取高压固结灌浆对分布于坝基的不同类型和缺陷的岩体进行灌浆加固试验,并分析了坝区岩体的可灌性。获得了大岗山高拱坝坝区固结灌浆的施工参数。试验表明,固结灌浆对坝体整体性、基岩强度以及相应的岩石力学参数等方面的都有改善,其施灌方法和施工工艺可为拱坝基础处理设计和施工技术提供指导。
The bed rock of Dagangshan arch dam is composed of the bio-adamellite with some rock branches,especially the dolerite-dyke,There also appear the large fractures and faults.The dam foundation stability against sliding may be influenced heavily.Consolidation grouting is adopted to make experiments for the rock bodies with different types and defects which distribute in a dam foundation,so that the technical parameters in the construction for high arch dams are obtained,which could be applied in the later construction.
出处
《水利与建筑工程学报》
2010年第1期35-38,45,共5页
Journal of Water Resources and Architectural Engineering
关键词
固结灌浆
试验
坝基
大岗山水电站
consolidation grouting
experiment
dam foundation
Dagangshan Hydropower Station
