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以锚杆(锚索)为代表的岩土锚固技术自诞生以来,便发挥了不可估量的作用。但传统摩擦型锚杆(锚索)及新兴扩体锚杆(锚索)在遇到特殊地质条件或复杂周边环境时,又呈现出各自的不足之处。基于此,本文提出一种可以提供更大抗拔力,并能很好适应特殊地质条件及复杂周边环境的机械扩大头锚杆(锚索)结构,并详细介绍了机械扩大头锚杆(锚索)的工作原理、适用范围、施工工艺流程及操作要点。通过工程实践应用,验证了机械扩大头锚杆(锚索)的可行性及适用性。
Rock and soil anchoring technology represented by anchor rod (anchor cable) has played an inestimable role since it was born. However, the traditional friction-type anchor (anchor cable) and the new expansion anchor (anchor cable) in the face of special geological conditions or complex surrounding environment, but also showed their own deficiencies. Based on this, this paper presents a mechanical expansion head bolt (anchor cable) structure that can provide more anti-pull force and can adapt well to special geological conditions and complex surrounding environment. The mechanical expansion anchor bolt Cable) work principle, scope, construction process and operation points. Through the application of engineering practice, the feasibility and applicability of mechanical expanding anchor bolts (anchor cables) were verified.