喷混凝土这项先进技术在煤炭、冶金、交通和国防等工程发展迅速,应用广泛,证明确是一种多快好省的施工方法。在我们水电系统虽也在推广应用,但发展比较缓慢,特别是水工隧洞,由于经常与水接触,且受高流速过水磨冲,与一般地下洞室的工作条件不同,它除了要求具有较高的强度之外,还要求具有抗磨、抗渗、抗冻等耐久性能,所以发展更缓慢些。为了进一步提高喷混凝土的性能,我们在龙羊峡水电站导流洞喷锚支护 Sprayed concrete This advanced technology in the coal, metallurgy, transportation and national defense projects such as the rapid development of a wide range of applications, proved to be indeed a much faster and better construction methods. Although our hydropower system is also being popularized and applied, its development is relatively slow. In particular, hydraulic tunnels, which are often in contact with water and are subject to high flow velocity and water jetting, are different from the working conditions of underground tunnels in general. High strength, but also requires anti-wear, impermeability, antifreeze and other durable properties, so the development of more slowly. In order to further improve the performance of shotcrete, we Longyangxia Hydropower Station diversion tunnel spray anchor support