非预应力抗浮锚杆设计及验收试验荷载的探讨  

Discussion on design and acceptance test load of non-prestressed anti-floating anchor

作　　者：张昊坤 李鹏 Zhang Haokun;Li Peng(Qingdao Geotechnical Investigation and Surveying Research Institute,Qingdao 266032,China;Qingdao Geotechnical&Foundation Engineering Company,Qingdao 266032,China)

机构地区：[1]青岛市勘察测绘研究院,山东青岛266032 [2]青岛岩土基础工程公司,山东青岛266032

出　　处：《工程勘察》2020年第3期17-20,31,共5页Geotechnical Investigation & Surveying

摘　　要：目前除黑色冶金行业发布的《抗浮锚杆技术规程》,尚有多本现行标准涉及非预应力抗浮锚杆的验收试验,对锚杆最大试验荷载的要求不统一,锚杆抗拔承载力特征值、锚杆拉力标准值、锚杆拉力设计值等相关概念易引起混淆,锚杆设计安全系数的标准不统一。本文从抗浮锚杆设计入手,通过对荷载作用效应、锚杆抗拔承载力的三个控制因素的分析,结合工程案例,探讨了各标准关于非预应力抗浮锚杆设计及验收试验的要求和存在的问题,提出了关于分项系数取值、抗浮锚杆设计及验收试验的推荐应用标准、验收最大试验荷载等建议。There are many standards related to the acceptance test of non-prestressed anti-floating anchor at present besides the trade standard Technical specification for anti-floating anchor issued by Ferrous Metallurgy Industry.The requirements on maximum testing load of anchor are various,some term definition are likely to be confused,such as the characteristic value of anchor pulling capacity,the standard value of anchor pulling force,and the design value of anchor pulling force,and the requirement on design safety factor is different.Starting from the design of anti-floating anchor,through the analysis of the load effect and three controlling factors on the anti-uplift bearing capacity of the anchor,the requirements and existing problems of various standards on the design and acceptance test of non-prestressed anti-floating anchor are discussed,some suggestions on the value of the sub-coefficient,the most applicable standard for the design and acceptance test,and the maximum acceptance testing load are proposed.

关 键 词：非预应力锚杆 抗浮锚杆 设计 验收试验 试验荷载 

分 类 号：TU470[建筑科学—结构工程]