摘要
基坑支护结构上实测的内力常常远比按经典土压力理论计算的要小,针对这一问题考虑土拱效应对桩锚支护结构土压力的影响,应用Handy提出的土压力计算原理来分析桩锚支护结构的土压力。计算结果表明:桩侧土压力与经典土压力分布不同,与实测结果比较相符;对于砂卵石地层桩锚式支护结构,用考虑土拱效应的土压力计算模型比较合适。
Considering the pile-anchor supporting structure＇s soil arching effect for earth pressure,then use this calculation principle of earth pressure that Handy proposed to analysis earth pressure in pile-anchor supporting structure and to solve the problem that the measured forces often significantly less than the calculated earth pressure of the classical earth pressure theory.The earth pressure calculated by arching is different from classical theory distribution and the numerical results accorded with the experimental results.The earth pressure that consider soil arching effect is more proper for pile-anchor supporting structure in sandy cobble ground.
出处
《四川建筑科学研究》
2013年第2期174-176,231,共4页
Sichuan Building Science
关键词
桩锚支护
土压力
土拱效应
砂卵石地层
pile-anchor supporting structure
earth pressure
arching effect
sandy cobble ground
