某公路桥墩下伏采空区数值模拟分析  

Numerical Simulation Analysis of Goaf under a Highway Bridge Pier

作　　者：熊强强 杨继光 樊夏敏 张政 

机构地区：[1]中国矿业大学力学与土木工程学院,江苏 徐州 [2]中国铁路上海局集团有限公司徐州铁路枢纽工程建设指挥部,江苏 徐州

出　　处：《土木工程》2023年第2期215-223,共9页Hans Journal of Civil Engineering

摘　　要：在目前的城市公路建设过程中,越来越多的公路的建设方式采用高架桥的方式进行,这种建设方式可以更好地利用地面以上的空间,在资源型城市中建设高架桥往往会遇到采空区问题。本文以某资源型城市在某公路快速化改造过程中遇到的采空区问题为背景,以FLAC3D模拟软件为工具,研究该项目在采空区变形过程中的规律以及原治理方案即注浆方案的合理性,对比注浆前后采空区区域内的地表变形、应力、以及塑性区的变化规律,为类似的采空区区域内建设高架桥的工程提供建设和治理的建议。In the current process of urban highway construction, more and more highways are constructed in the form of viaducts, which can make better use of the space above the ground. The construction of viaducts in resource-based cities often encounters goaf problems. This paper takes the goaf problems encountered in a resource-based city during the rapid transformation of a highway as the background, and uses FLAC3D simulation software as a tool, studies the regularity of the project in the deformation process of the goaf and the rationality of the original treatment scheme, namely the grouting scheme, and compares the variation regularity of the surface deformation, stress, and plastic zone in the goaf area before and after the grouting, so as to provid.

关 键 词：采空区 数值模拟 地表变形 塑性区 

分 类 号：U44[建筑科学—桥梁与隧道工程]