无重土极限荷载统一解及其应用

UNIFIED SOLUTION OF THE LIMIT LOAD OF WEIGHTLESS SOIL AND APPLICATION

利用塑性力学的滑移线场理论，求出了无重土平顶钝角楔体及锐角楔体的极限荷载，并将其推广应于一般的φ－Ｃ型土的土坡、浅基础与深基础以及挡土墙土压力问题的极限荷载问题，导出了无重土极限荷载的统一形式，并对不同情况下极限荷载系数的表达式进行了分析．

Based on the slip line field theory of plasticity, the limit load of obtuse and actuse wedges of weighless soil can be derived. Theis conclusion, can be applied to the common soil slope, shallow and deep foundations, earth pressure of the retaining wall for ordinary soil of φ C type. The unified solution of the limit load of weightless soil is derided. The expressions of the coefficient N q of the limit load under different conditions are studied.