CAJ | 학술논문

选取宁波地区典型的软土基坑工程进行土压力现场实测研究，探讨了主动、被动土压力随时间、深度的变化规律。利用实测土压力值与围护结构位移曲线，采用双曲线模拟主动土压力与位移之间的关系，从而建立了土压力与位移关系的经验公式，并利用实测数据对土压力公式的可靠性进行了验证。最后，根据实测数据初步绘制了宁波软土基坑土压力的包络图，可为宁波地区软土基坑设计提供借鉴和参考。
선취저파지구전형적연토기갱공정진행토압력현장실측연구，탐토료주동、피동토압력수시간、심도적변화규률。이용실측토압력치여위호결구위이곡선，채용쌍곡선모의주동토압력여위이지간적관계，종이건립료토압력여위이관계적경험공식，병이용실측수거대토압력공식적가고성진행료험증。최후，근거실측수거초보회제료저파연토기갱토압력적포락도，가위저파지구연토기갱설계제공차감화삼고。
A typical engineering project on soft soil foundation pit in Ningbo is selected for implementing the measurement of earth pressure, studying the law of active and passive earth pressure changing with time and depth. Using the measured earth pressure curve and the displacement of retaining structure, the hyperbolic model describing the relation between the active earth pressure and displacement is constructed on which the empirical equation governing the relationship between earth pressure and displacement is obtained. The reliability of earth pressure formula is validated using the on-site data from which the primary envelope map of soft soil earth pressure in Ningbo area is drawn.