国内预应力锚杆(索)防护要求与存在的问题

国际学术界和工程界对岩石锚固预应力锚杆（索0的防护进行了大量的研究。制定了一系列强制性规定，我国岩土锚固规范中对锚杆（索）耐久性的要求相对较低，且可操作性较差，结构的安全性重点放在各种强度要求上，而对环境因素（如工程周围水，土中有害化学介质侵蚀等）下的耐久性要求则考虑较少，随着我国基本建设的发展，作为土建结构重要组成部分的岩土预应力锚杆（索）工程的耐久性应引起相关研究，设计和施工部门的高度重视。

Protection and Concerns for Pre-stressed Rock Bars (Cables) in China

Extensive research has been conducted and a series of compulsory regulations have been worked out on the protection of pre-stressed rock bars (cables) in the international academic and engineering circles. In the Chinese specifications, the requirement for durability of anchor bars (cables) is relatively low and has a poor operability; the structural safety focuses on the various strength requirements; and fewer considerations are given to the durability associated with environmental factors (erosion from water and harmful chemical matters around bars or cables). With development of capital construction in China, the durability of pre-stressed rock bars or cables as an important part of civil structures would be given high attention by departments or institutes concerned of scientific research, design and construction.