采空影响区高层建筑抗变形设计方法及应用案例  

Design method and application case of deformation resistance for high⁃rise buildings in goaf affected area

作　　者：王媛[1] 李伟强[1] 穆亮 孙宏伟[1] 王霞 WANG Yuan;LI Weiqiang;MU Liang;SUN Hongwei;WANG Xia(Beijing Institute of Architectural Design,Beijing 100045,China;CRCC Shandong Institute of Architectural Design,Qingdao 266109,China)

机构地区：[1]北京市建筑设计研究院有限公司,北京100045 [2]中铁一院集团山东建筑设计院有限公司,青岛266109

出　　处：《建筑结构》2024年第10期128-133,共6页Building Structure

基　　金：北京市科学技术协会2020—2022度青年人才托举项目——基于区域大变形下的城市建筑安全抗变形设计方法研究。

摘　　要：在煤炭资源型城市转型期,对土地资源的需求日益紧张,煤炭采空区不再只是进行城市绿化,而是越来越细分,在可利用的场地上进行工程建设。重点研究煤炭资源型城市采空影响区域内,基于数值沉降抗变形分析,高层建筑在保证安全的前提下,采用更加经济合理的地基基础方案及抗变形措施,这一设计方法的实施可以解决很多采空影响区内建筑活动因为过高抗变形措施费而停滞的项目,缓解了煤炭资源型城市发展用地需求。基于目前国内外采空影响区域内砌体结构及高层建筑抗变形设计分析方法,提出采用岩土有限元软件精细化模拟正常施工沉降变形及残余变形影响下的沉降变形;基于典型项目案例计算分析,提出抗变形设计的量化分析结果。分析方法及量化结果为后续煤炭资源型城市高层建筑的抗变形设计提供了可借鉴的经验。The demand for land resources in the transformation period of coal resource-based cities is increasingly tense.The goaf affected area is no longer just for urban greening,but more and more subdivided,and engineering construction is carried out on the available sites.Focusing on the study of goaf affected areas in coal resource-based cities,based on numerical settlement and deformation resistance analysis,high-rise buildings adopt more economical and reasonable foundation schemes and deformation resistance measures while ensuring safety.The implementation of this design method can solve many projects in goaf affected areas that are stalled due to high deformation resistance measures,and alleviate the land demand for the development of coal resource-based cities。Based on the current deformation resistance design and analysis methods of the masonry structure and the high-rise building at home and abroad,it was proposed that the geotechnical finite element software was used to finely simulate the settlement deformation under the influence of normal construction and residual deformation.Based on calculation and analysis based on typical project cases,the quantitative analysis results of deformation resistance design was put forward.The analysis method and quantitative results provide effective experience for the subsequent deformation resistance design of high-rise buildings in coal resource-based cities.

关 键 词：煤炭资源型城市 采空影响区 高层建筑 沉降变形分析 抗变形分析 

分 类 号：TU47[建筑科学—结构工程]