不同标准中抗浮锚杆工程的安全性分析

Safety analysis of anti-floating anchor engineering in different standards

针对不同标准中抗浮锚杆计算公式不协调的现状,分析了不同标准所采用的设计方法,指出了有关标准中作用效应与抗力不匹配的问题。通过对比不同标准中锚固段长度和锚杆截面积计算公式的差异,并采用统一公式对其进行改写换算,分析了不同标准中抗浮锚杆工程的安全性。结果表明,采用《全国民用建筑工程设计技术措施:结构(地基与基础)》和《建筑边坡工程技术规范》的抗浮锚杆工程安全性较高,而采用《建筑地基基础设计规范》的安全性偏低。

In view of the current situation that the calculation formulae of anti-floating anchor are uncoordinated in different standards, the design methods adopted in different standards are analyzed, and it’s found that the effect of action and resistance are mismatch in some standards.The safety of floating anchor works in different standards is analyzed by comparing the differences of formulas for anchorage length and section area, rewriting and converting them into unified form.The results show that the safety of anti-floating anchor engineering is higher for those adopting National technical measures for design of civil construction:structure(foundation) and Technical code for building slope engineering,while the safety is lower for those adopting Code for design of building foundation.