摘要
嘉陵江亭子口水电站因地质条件复杂,岩体微裂隙相对较发育,特别是位于两岸坝肩的K14C-2长石石英砂岩(俗称泡砂岩),结构松散,孔隙率高,微裂隙发育,耐压性差,因而灌浆劈裂点低。重点解决的是砂岩、黏土岩、粉砂岩、岩屑砂岩等的渗流问题。选择了有代表性的区域进行帷幕灌浆专项试验,以确保帷幕灌浆施工质量,完善施工工艺。
The geological condition of Tingzikou Hydroelectric Power Station is very complicated.The micro cracks of the rocks are relatively well developed.Especially the K4-21C feldspar-quartz sandstone which is located at abutment along two banks has very low grouting splitting resistance because its structure is loose with high porosity,well-developed cracks and poor compression resistance.The critical problem to be solved is the seepage of sandstone,argillite rock,siltstone and lithic sandstone,etc.Curtain grouting test was conducted in a representative area to ensure the construction quality and improve the construction process for curtain grouting.
出处
《施工技术》
CAS
北大核心
2013年第11期52-56,共5页
Construction Technology
关键词
水电站
帷幕
灌浆
试验
施工技术
hydroelectric power stations
curtains
grouting
testing
construction
