CAJ | 학술논문

为使基坑设计更加科学合理，分析了椭圆形基坑支护的变形和土压力分布情况。结果表明：椭圆形支护上存在4个土压力转变点，在转变点处土压力会发生主、被动之间性质的转变；作用于支护上的土压力值是区别于经典理论的“类主动土压力”和“类被动土压力”，它们之间存在一定的比例关系。根据椭圆形支护上土压力的分布模式，提出了3种确定椭圆形支护土压力的方法。
위사기갱설계경가과학합리，분석료타원형기갱지호적변형화토압력분포정황。결과표명：타원형지호상존재4개토압력전변점，재전변점처토압력회발생주、피동지간성질적전변；작용우지호상적토압력치시구별우경전이론적“류주동토압력”화“류피동토압력”，타문지간존재일정적비례관계。근거타원형지호상토압력적분포모식，제출료3충학정타원형지호토압력적방법。
In order to scientifically and rationally design excavations, we analyze the deformation and soil pressure distribution of an elliptical excavation support. The results show that there are four soil pressure changing points on the elliptical excavation support, similar active soil pressure and similar positive soil pressure change at these points, and there is a proportional relationship between the similar active soil pressure and similar positive soil pressure, in contrast to the classical theory. According to the distribution modes of soil pressure acting on the elliptical excavation support, we propose three methods for determining the soil pressure.