压应力分散型扩大头锚杆的研究与应用  

Research and Application of Pressure Stress Dispersing Type Expanded-head Anchor Rod

作　　者：杜明祥 周建明 程良奎[2] 

机构地区：[1]苏州市能工基础工程有限责任公司,苏州215011 [2]冶金部建筑研究总院,北京100088

出　　处：《建筑施工》2015年第3期304-306,共3页Building Construction

摘　　要：常规拉力型锚杆存在抗拔承载力小、稳定性低等缺点,使得锚杆的使用受到了限制。根据研究试验与应用实践,介绍一种压应力分散型扩大头锚杆,这种锚杆不仅抗拔承载力和稳定性较常规拉力型锚杆有很大的提高,而且可以和其它技术轻易结合,实现拆芯回收等其它功能。The traditional tensile type anchor rod has several disadvantages such as the small uplift capacity and the low stability, which restricts the use of anchor rod. Based on the research trials and application practice, the pressure stress dispersing type expanded-head anchor rod has been introduced. Such anchor rod not only improves the uplift capability and stability compared with the traditional tensile type anchor rod, but also can be combined easily with other technologies, so as to make the realization of the dismantled anchorage-core recycle or other functions.

关 键 词：压应力分散型 预应力锚杆 扩大头 热熔锚具 合页夹 施工技术 

分 类 号：TU753.3[建筑科学—建筑技术科学]