摘要
采空区的危害性评价是矿区高速公路建设关键技术难题之一。文章研究了采空区地表剩余移动与变形特征,经验公式法、预计评价方法及有限单元法进行采空区变形与稳定性预测与评价的原理及关键技术,并提出了高速公路工可、初设及施设三阶段采空区危害性评价工作内容与目标、评价标准及程序。计算实例表明,三种方法联合使用是采空区路基危害性评价的有效方法。
Hazard assessment is one of the difficult technical issues for expressway construction in mined-out region.The characteristics of residual subsidence and deformation are studied. The basic principle and key points of empirical formula method, prediction and evaluation method, FEM are introduced.According to the three stage of highway design, the content and target are respectively summarized.The evaluation and proccss are also put forward.Finally, the computing example indicates the validity of the three methods.
出处
《公路交通科技》
CAS
CSCD
北大核心
2005年第11期1-5,共5页
Journal of Highway and Transportation Research and Development
关键词
采空区
高速公路
危害性
评价
Mined-out region
Expressway
Hazard
Evaluation
