摘要
本文指出,前人对采动影响下桥梁的研究方法与现代桥梁技术已不相适应。以沈大高速公路沙河大桥为例,提出了采用有限元法建立的桥梁计算模式,分析了桥梁受采动影响的变形规律和调整措施,并以实例进行了验证。
It is pointed out that the methods which are studied by predencessor about the bridge affected by underground mining are not suited for the moden technology of bridge. Taking the Shahe Bridge for example of calculation ,authors set up the calculating model of bridge which adopted the finite element method. The laws of bridge deformation and adjusting measures for bridge are analyzed and proved with rpactical examples
关键词
地表移动
桥梁
变形
有限元
采动影响
surface movement
bridge deformation
finite element method
