深埋地下结构土压力计算理论及应用

The calculation theory and application on earth pressure for deep-buried underground structure

基于现有规范、理论和工程经验,对浅埋和深埋地下结构的界限确定方法进行了归纳分析,给出了深埋地下结构竖向土压力计算的2种理论,即普氏压力拱和泰沙基理论,并将该理论应用于深埋拱形地下结构之中,得到了非饱和土和饱和土中深埋圆形隧道周围的土压力计算方法。

Based on the norm, theory and engineering experiences, the method of dividing line standard of deep and shallow buried underground structure are summed up. Then two theories are provided to calculate vertical earth pressured in deep buried underground structure, namely PU＇ s equilibrium arch theories and Terzaghi theory. Thus the theories are applied in deep buried arch underground structure and have got the earth pressure calculation method of deep-buried circular tunnel in the saturated soil and unsaturated soil.