对于松散沉积物构成的坝基或基岩裂隙坝基,一般采用的防渗措施是用水泥浆灌入地基岩层中,形成一道阻水幕,称为帷幕灌浆。另外还有提高坝底与基岩接触面强度的接触灌浆,以及既考虑防渗又考虑提高地基强度的固结灌浆等。下面介绍几种新的灌浆技术。1.湿磨细水泥灌浆。这种灌浆法是把普通 For the formation of loose sediment or bedrock foundation rock fractured dam foundation, commonly used anti-seepage measures is poured into the ground with water slurry, forming a water curtain, called curtain grouting. There are also contact grouting to improve the contact strength between the dam bottom and the bedrock, as well as the consolidation grouting that considers both seepage prevention and improvement of foundation strength. Here are some new grouting techniques. 1. Wet grinding cement grouting. This grouting method is normal