露天矿边坡影响区建筑物的加固结构体系研究  

Study on Reinforced Structure System of Buildings in Slope Affected Area of Open-Pit Mine

作　　者：王邵臻[1] 王金安[2,3] 周家兴 WANG Shaozhen;WANG Jinan;ZHOU Jiaxing(Tianjin College,University of Science and Technology Beijing,Tianjin 301830,China;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China;Key Laboratory of Ministry for Efficient Mining and Safety of Metal Mines,Beijing 100083,China;Department of Water Resources and Hydropower Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京科技大学天津学院,天津301830 [2]北京科技大学土木与资源工程学院,北京100083 [3]金属矿山高效开采与安全教育部重点实验室,北京100083 [4]清华大学水利水电工程系,北京100084

出　　处：《矿业研究与开发》2023年第4期147-153,共7页Mining Research and Development

基　　金：国家重点研发计划项目(2017YFC1503104)。

摘　　要：抚顺西露天矿历经百年开采,在滑坡、地裂缝及泥石流等多链式灾害的影响下,建筑物已产生不可逆的损伤。尽管边坡治理工程已基本完成,但建筑物仍存在损伤进一步贯通的风险。为此,对周边建筑物的破损特征进行了梳理,将损害等级区域划分为四级,提出了建筑物刚性抗变形加固与柔性吸收变形相结合的加固体系。根据建筑物整体模型和关键承载构件模型的模拟计算结果可知:采用地下连续墙加固可使建筑物结构损伤体积降低约6.05个百分点,采用基础锚杆加固可使建筑物基础部位的破损体积降低约3.67个百分点,而采用韧性砂浆填充的柔性吸收变形法可使构件损伤体积降低约11.15个百分点,故该加固体系可为露天矿周边城市建筑物加固工程提供技术支撑与参考依据。Fushun West open-pit Mine has been mined for 1oo years.Under the influence of multi-chain disasters such as landslide,ground fissure and debris flow,buildings have produced irreversible damage.Although the slope treatment project has been basically completed,there is still a risk of further damage to the building.Therefore,the damage characteristics of the surrounding buildings were sorted out and the damage grade area is divided into four levels.A reinforcement system combining rigid anti-deformation reinforcement and flexible absorption deformation of buildings was proposed.According to the simulation results of the whole building model and the key bearing component model,it can be seen that the damage volume of the building structure can be reduced by about 6.05 percentage points by using the underground continuous wall reinforcement,and the damage volume of the building foundation can be reduced by about 3.67 percentage points by using the foundation bolt reinforcement.The flexible absorption deformation method filled with ductile mortar can reduce the damage volume of components by about 11.15 percentage points.Therefore,the reinforcement system can provide technical support and reference for the reinforcement project of urban buildings around open-pit mines.

关 键 词：露天矿 边坡治理 建筑物损伤 加固结构 

分 类 号：TD824.72[矿业工程—煤矿开采] TU472[矿业工程—矿山开采]