摘要
华北地区广泛分布的山区地貌,为应用岩石锚杆基础提供了丰富的地质条件。但是,勘测设计在确定使用岩锚基础时,应充分考虑目前的施工条件和工艺能否满足应用岩锚基础,是否方便施工。一些硬度较高、完整性较好的微风化硬质岩石地基,不宜使用岩锚基础;在强风化硬质岩石地基中,因锚孔施工中塞卡钻头的原因,应根据强风化状态硬质岩石的实际完整程度,酌情考虑是否适宜使用岩锚基础。
Mountain terrains are widely spread in North China, providing rich geological conditions for application of rock bolt foundation. However, in surveying and design, it should be fully considered that whether current construction conditions and technology are suitable for rock bolt foundation and convenient for construction. Some minor weathered hard rock foundations with high hardness and good integrity are not suitable for rock bolt foundation; in heavily weathered hard rock foundations, to avoid drill bit jam in constructions, whether to use rock bolt foundation should be decided according to actual integrity of the heavily weathered hard rock..
出处
《电力建设》
2009年第4期36-38,共3页
Electric Power Construction
关键词
岩石地基
岩锚基础
施工
rock foundation
rock bolt foundation
construction
