摘要
根据土钉支护的受力特点和钉土间的相互作用,采用剪滞力理论建立了土钉内力传递的计算模型,由平衡条件推导出了以土钉轴向应力为变量的微分方程,根据边界条件得出了土钉内力的传递公式,分析了土钉支护内力传递的规律。通过理论推导与土钉支护工程实例的现场测试结果对比研究,发现理论分析与实测结果吻合较好,验证了计算模型和分析方法的可行性,对土钉支护结构的设计和内力分析具有一定的指导意义。
The differencial equation as a variation of the axis stress of the soil nail was derived by the blance condition, according to the bearing characteristics of soil nailing , the interaction between nail and soil, and the mechanical model of the transmission of the soil nail internal stress with the shear - log theory. Then the transmission equation was solved due to the boundary condition and the discipline of the internal stress transmission was analyzed. When compared with the field tested result of the soil nailing project by writing the MATLAB programs, the anastomoses between the theory analysis and the field test was good and the feasibility of the model and analysis method are proved. The result contributed a instruction significance to the design and the analysis of internal stress of soil nail structure.
出处
《河北工程大学学报（自然科学版）》
CAS
2008年第4期33-36,共4页
Journal of Hebei University of Engineering:Natural Science Edition
关键词
土钉支护
剪滞力
现场测试
soil nailing
force of shear- lag
field test
