【摘要】 土条状坑壁的土体宽度有限,而经典土压力理论却是建立在半无限土体的假定上,因此经典土压力理论的应用受到限制。本文参照库仑土压力理论的基本假定,建立了土条主动土压力的计算方法,提出了临界宽深比ξcr的概念,并结合深圳一工程实例,探讨了土条土压力的分布规律以及在工程中的应用。更多还原

【Abstract】 As the width of the slice-like foundation pit is finite,the application of classical earth pressure theory which bases on the semi-infinite layer is improper.On the fundamental assumption for Coulomb′s theory of earth pressure,a new calculation method is presented to solve the active earth pressure for the slice-like foundation pit,and also the critical ratio ξ_cr of the width to depth is analyzed.Issues for the use of the said method are discussed through a typical engineering example,and the distribution characteristics of the active pressure and the internal force of the support structure for the slice-like foundation pit are expounded.更多还原