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为探究巨厚冲击层下煤炭开采诱发路桥框架结构的沉陷规律,针对巨厚冲积层下路桥框架结构在采动过程中地基受挠动影响大、易失稳的实际问题,运用相似材料模拟的方法建立室内箱涵物理试验模型,研究了不均匀沉降条件下框架结构基底附加应力、箱体上表面的竖向位移、箱体侧墙挤压附加应力和箱体顶板和底板的内外表面上中轴线处x向附加应力的变化规律。
In order to explore the subsidence regularity of road and bridge frame structure induced by coal mining under gigantic impact layer, aiming at the practical problem that the subgrade and underbridge structure with huge alluvium subgrade affected by the large and easy instability of rock during the mining process, Methods A physical experiment model of indoor box culvert was established. The effects of additional stress on the base of the frame structure, vertical displacement of the upper surface of the box body, additional stress of the side wall of the box body and the inner and outer surfaces of the box roof and the floor were studied. Axial x additional stress changes.