预应力锚杆参数对边坡支护作用效果影响研究  

STUDY ON THE INFLUENCE OF PRESTRESSED BOLT PARAMETERS ON SLOPE SUPPORT

作　　者：孙忆青 谢翡 张前进 SUN Yi-qing;XIE Fei;ZHANG Qian-jin(The Shandong Expressway Resources Development management Group Co.,Ltd.,250014,Ji'nan,China;The Ji'nan Huibo Real Estate Co.,Ltd.,250300,Ji'nan,China;Zibo Vocational Institute,255314,Zibo,Shandong,China)

机构地区：[1]山东高速资源开发管理集团有限公司,济南250014 [2]济南汇博置业有限公司,济南250300 [3]淄博职业学院,山东淄博255314

出　　处：《建筑技术》2024年第16期2006-2008,共3页Architecture Technology

摘　　要：为了研究预应力锚杆参数对边坡支护作用效果的影响,通过FLAC3D数值模拟技术进行分析研究,得出不同锚杆长度和直径参数下的锚固力。研究表明:(1)通过研究不同锚杆长度对边坡支护作用的影响,发现锚杆的长度宜不小于8 m,若小于8 m,则无法对边坡提供足够的锚固力;当锚杆长度超过10 m时,无明显的锚固作用,说明预应力锚杆支护作用存在合理的锚杆长度参数。(2)通过研究试验模型中的预应力锚杆直径参数发现,随着锚杆直径的增大,相同编号的锚杆的轴力不断增大。说明预应力锚杆支护宜选用大直径锚杆,但同时应综合考虑经济效益和安全性,选用直径合适的锚杆。In order to study the influence of prestressed bolt parameters on slope support,the anchorage force of anchor bolts with different lengths and diameters was determined through analysis by means of FLAC3D numerical simulation.Research showed:(1)Through the study on the influence of bolt lengths on slope support,the bolt length should not be less than 8m.The bolts that are less than 8m long have insufficient anchorage force for slopes However,the bolts that are more than 10m long have no significant anchorage effects.This indicates that there are reasonable bolt lengths for prestressed bolt supports.(2)Through the study on prestressed bolt diameters in the test model,it has been found that the axial forces of bolts rise with the bolt diameter increasing.Therefore,large-diameter bolts should be used for prestressed bolt supports.Considering economic benefits and safety,however,bolts with appropriate diameters should be used.

关 键 词：预应力锚杆 边坡支护 锚杆参数 数值模拟 

分 类 号：TU41[建筑科学—岩土工程]