摘要
土钉支护结构整体稳定性分析作为土钉支护设计中的关键验算项目,直接影响到土钉支护结构的正常运行。本文从土钉与土体之间相互作用原理出发,运用土的塑性理论和土坡的极限平衡分析方法,提出了基于土拱效应原理基础上的土钉支护结构稳定性分析的新方法,并与现行《规程》方法进行比较。研究表明:土钉直径和间距对土钉支护结构稳定性的影响远比《规程》方法的要大。
The whole stability analysis of the soil-nailing protection structure is the key checking computation item in the design of the soil-nailing protection, which affects directly normal work of the soil-nailing protection structure. Starting from the interaction between the soil-nailing and the soil body, applied soil plasticity theory and slope limit equilibrium analysis method, a new method was put forward for stability analysis of the soil-nailing protection structure based on the soil-arch effect and compared with current methods in the specification. The results show that the influence of the diameter and the spacing of the soil-nailing on stability of soil-nailing protection structure is much greater than that obtained from the method in the specification.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2005年第7期792-795,共4页
Chinese Journal of Geotechnical Engineering
关键词
土钉支护
土拱效应
塑性理论
稳定性分析
the soil-nailing protection
the soil arch effect
plasticity theory
the stability analysis
