摘要
基于弹性力学理论、薄板小挠度弯曲理论及数学计算,采用Burgers体构建顶板挠度方程,研究采空区顶板不同边界条件下挠度随时间的变化关系。研究结果表明,在四边固定情况下,中间挠度最大为37.77 cm;三边固定一边自由情况下,自由边中间挠度最大,为46.22 cm。该模型计算结果与现场监测数据大致吻合。
Based on the theory of elasticity,thin plate small deflection theory and mathematical calculation,the top plate deflection equation was constructed using the Burgers body,and the relationship between the deflection and time under different boundary conditions of the mining area top plate was studied.The research results show that under the condition of four sides fixed,the maximum middle deflection is 37.77 cm,and under the condition of three sides fixed and one side free,the maximum middle deflection of the free side is 46.22 cm.The calculated results of the model are roughly consistent with the field monitoring data.
作者
李伟华
韩现刚
LI Weihua;HAN Xiangang(School of Civil Engineering,Hebei University of Engineering,Handan,Hebei 056038,China)
出处
《河北工程大学学报(自然科学版)》
2025年第1期43-49,共7页
Journal of Hebei University of Engineering:Natural Science Edition
基金
国家重点实验室项目(SKLMRDPC19KF04)。
