摘要
本文通过对一种新型机械扩孔抗浮锚杆的受力机理与现场试验研究,指出其技术应用的优越性。根据摩尔强度理论推导出扩孔抗浮锚杆的抗拔力计算公式。通过现场试验,进行机械扩孔锚杆施工工艺的分析研究和承载性能的对比评价。承载性能方面主要是通过现场锚杆试验得出机械扩孔锚杆的实际承载力,并与理论值进行对比分析。新型机械扩孔锚杆承载力有明显提高,证实新型机械扩孔锚杆的优越性,为其工程推广应用奠定了良好的基础。
Through investigation on stress mechanism and in-situ tests, the technical superiority of a new type mechanical expanded anti-floating anchor is proved in this piece of paper. According to Mohr-Coulomb strength theory, the calculation formula of anti-pullforce of the expanded anti-floating anchors are deduced. During the in-situ tests,researches on construction techniques and comparison of load-carrying properties of the mechanical expanded anti-float anchors are carried out. Through the anchorage tests, the actual practical capacity of the load-carrying properties of the new mechanical expanded anti-float anchors can be gained. Comparative analysis on the actual value and the theoretical value is performed. Under the equivalent conditions, the capacity of the mechanical expanded anti-float anchors is of significantly improved, and the advantages of the mechanical expanded anti-float anchors are well confirmed.
出处
《福建建设科技》
2018年第1期28-30,48,共4页
Fujian Construction Science & Technology
关键词
机械扩孔锚杆
受力机理
承载性能
锚杆试验
mechanical expanded anchor
stress mechanism
load-carrying property,anchorage test
