采动区地基、条形基础与框架结构共同作用机理研究

本文综合应用结构力学、矿山开采沉陷学、土力学、材料力学等相关理论,建立了采动区地基–条形基础–框架结构共同作用力学模型。该力学模型综合考虑了开采盆地形成过程中地表变形对建筑物的动态影响以及框架结构建筑物的基础和建筑物的长度等影响因素,从理论上分析了采动过程中上部结构变形、内力等变化规律及主要因素的影响规律,推导出计算采动区建筑物移动变形和各种附加内力的计算公式,通过计算实例进行了验证,为采动区上方框架结构建筑物的保护、加固和设计提供了理论依据和计算工具。

Mechanism study on subsoil-strap footing-framework interaction in mining subsidence area

By applying the theory of structural mechanics, mine exploitation subsidence science, soil mechanics, and material mechanics synthetically, the mechanical model of ground-strap footing-framework interaction in mining subsidence area was established. Influence factors such as the dynamic effect of the ground deformation on the structure during the forming process of exploitation basin, the length of the frame structure and its foundation were comprehensively considered in this model. The effect of the deformation of structure and internal force during exploitation Was theoretically analyzed, and equations to calculate the deformation of structure and various additional internal forces in mining subsidence area were derived. Validated by actual examples, these expressions provided theoretical arguments and calculative facilities for the protection, reinforcement and design of frame structures in mining subsidence area.