破碎花岗岩边坡加固与防护技术研究

完整新鲜的花岗岩具有良好的的工程地质性质。但是受水、空气、温度等自然营力的侵蚀、剥蚀、风化作用，花岗岩体物理力学性质指标降低较多。使之成为工程建筑困难最大的岩石之一。论文以国道318线二郎山至康定公路改建工程中花岗岩边坡防护为例，分析了沿线花岗岩边坡主要地质特征。并根据岩体风化破碎情况、地质构造、卸荷作用以及表面覆盖层情况等因素，将边坡进行分类。通过分析各种类型边坡破坏的机理及模式，提出有效的加固防护方法。为处治已产生病害的花岗岩边坡提供科学、有效、经济、合理的加固防护技术。也为今后设计和施工中预防其病害提供经验和资料。

Study on the reinforcement and protection techniques on highly fractured granite slope

The engineering geologic properties of the integrated granite are excellent, but its physical and mechanical parameters will be rapidly reduced when weathered by natural agent, such as water, atmosphere, temperature etc. Highly fractured granite has poor engineering properties. This paper analyzes the main geologic properties of the high granite slopes, along No.318 national highway from Er-lang Mountain to Kang-ding. These slopes are classified based on the weathering degree of granite, other geological structures, stress release process and thickness of surface deposits etc. The effective methods of reinforcement and protection of slopes are proposed based on the failure mechanism and mode of all types of high slopes of different categories. These methods have been proved to be not only cost-effective, but also technical effective. It is hoped that these methods could be applied in other areas.