摘要
土钉支护失败,有相当一部分是因为软弱土层基坑底部发生隆起破坏。将圆弧滑动假设运用到土钉支护基坑隆起验算中,利用程序计算研究了基坑隆起的影响因素,认为坡率陡缓和平台宽度大小对基坑抗隆安全系数有重要影响。提出在土钉支护设计计算中应定量考虑基坑隆起稳定性。
Many engineering accidents of the Soil Nailing Protection are due to.the heave of base. Under the suppose of slippage of circular arc, infection factors of the heave of base could be analyzed, with Fortran program which is compiled by author himself. Slope rate and width of flat are important factors concerning security coefficient of the opposing knurl of the base. When designing the Soil Nailing Protection, stability of the heave of base should be considered quantifica-tionally.
出处
《科技通报》
2005年第2期176-179,共4页
Bulletin of Science and Technology
关键词
土钉支护
基坑隆起
圆弧滑动
坡率
平台宽度
soil nailing protection
heave of base
slippage of circular arc
slope rate
width of flat
