研究目的:锚杆挡土墙在高边坡工程中应用广泛，锚杆挡土墙极限状态设计的研究，是为了考察现行规范设计下，该结构的安全度并给出锚固段极限状态设计表达式。研究结论:(1)锚杆挡土墙极限状态设计研究步骤: 建立极限状态方程→计算可靠指标并确定目标可靠指标→计算分项系数及建立设计表达式;(2)锚杆挡土墙可靠指标推荐值大部分满足公众需求，但边坡较高时，可靠指标偏低;(3)锚杆挡土墙设计可参照现行《铁路路基支挡结构设计规范》，当边坡较高时，建议适当增大荷载分项系数，并注意对边坡坡形的设计和加固;(4)该研究结论可供锚杆支挡结构设计参考。
Abstract
Research purposes:The anchor rod retaining wall is widely used in high slope engineering. The research of anchor rod retaining wall limit state design is to examine the safety of the structure in the current design specification, and give design expression to anchorage segment limit state.
Research conclusions:(1) The research steps of anchor rod retaining wall structure limit state design are to establish a limit state equation, calculate reliability index and determine the target reliability index, calculate partial coefficient and set up the design expression. (2) For the anchor rod retaining wall structure reliability index, most of recommended values can satisfy the public demand, but when the slope is higher, the reliability index is low. (3) The anchor rod retaining wall can be designed with reference to the current Code for Design of Railway Retaining Structures of Railway Subgrade, when the slope is higher, it is suggested that the partial coefficient of load is appropriately increased, and attention is paid to the design of slope form and slope surface reinforcement. (4) The research conclusion can be used for reference in the design of anchor rod retaining structure.
关键词
锚杆挡土墙 /
极限状态 /
可靠度 /
分项系数 /
设计方法
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Key words
anchor rod retaining wall /
limit state /
reliability /
partial coefficient /
design method
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中图分类号：
U213.1
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参考文献
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