In this paper, a self-made geomechanics model material (MSB) is used for exerting normal load in the direction of actual principal stress on the round sides of the vertical plane stress model of large buried underground power houses.

• 本试验利用自制的地质力学模型材料(MSB),在窑洞式地下厂房的立式平面应力模型的周边上,按实际主应力方向进行加载。