摘要
抗滑桩的设计理念是采用非连续结构,利用土体自身强度形成的拱效应来达到支挡目的。土拱效应是安全经济地发挥抗滑桩等非连续支挡结构支护功能的重要前提。通过对非均布荷载作用下土拱的力学性质分析,根据轴向压应力与矢跨比的函数关系,利用摩尔-库仑强度准则推导了土拱承载力与土拱净跨度和桩宽度的关系。
The concept of designing anti-slide pile is using discontinuous structure and the soil arching effect due to soil body strength to support the sliding force. Soil arching effect is an important precondition of adjacent pertaining or anti-sliding pile working safely and cost-efficiently. By means of the analysis of mechanical concepts of soil arching under the uniformly distributed load, based on the mechanical properties of soil arch, according to the function rela- tion of the axial compressive stress and the rise-span ratio, using M-C strength criterion, and the relation of the carrying capacity of soil arching with the soil arch net span and pile width was deduced.
出处
《地下空间与工程学报》
CSCD
北大核心
2010年第A02期1632-1635,共4页
Chinese Journal of Underground Space and Engineering
关键词
抗滑桩
非均布荷载
土拱效应
矢跨比
土拱承载力
Anti-slide pile
uniformly distributed load
soil arching effect
rise-span ratio
carrying capacity of soil arching
