摘要
在国内,首次采用4台大型吊车联合组对吊装工艺,进行丁集煤矿第2副井井架安装施工。为保证吊装过程中的安全性和安装精度,采用ANSYS软件,对井架中最重的主斜架吊装过程进行了数值仿真分析。首先,对比分析了矩形箱梁和带纵向加筋板的2种不同的等效截面形式,结果表明:考虑纵向加筋板截面的最大应力和最大位移比矩形截面箱型梁分别增大了约63.2%和约15.8%。可见,采用后者进行计算,要更为安全。然后分析了主斜架在4种不同起吊角度下的变形、应力分布规律。数值模拟结果表明,井架起吊过程中,其变形与位移均满足施工要求。工程实施效果良好。
In the domestic,a four large crane combined group was first applied to the lifting technology and was applied to the mine headframe installation construction of No.2 Auxiliary Mine in Dingji Mine.In order to ensure the safety and installation precision during the lifting installation process,an ANSYS software was applied to the numerical simulation analysis on the lifting and installation process of the most important main inclined frame in the mine headframe.First all,a comparison analysis was conducted on the two different equivalent cross section modes of the rectangular box beam and the longitudinal reinforced plate.The results show that the max stress and the max displacement of the cross section of the longitudinal reinforeed plate was increased by about 63.2% and 15.8%,respectively,compared with that of rectangular box beam.Thus the calculation with the longitudinal reinforced plate could be more safety.Then an analysis was conducted on the deformation and stress distribution law of the main inclined frame under the four different lifting angles.The numerical simulation results showed that during the lifting process of the mine headframe,the deformation and displacement should all meet the construction requirements of the deformation and displacement.The engineering completed effect was excellent.
作者
王国锋
WANG Guofeng(Huaihe Energy Group,Huainan 232001,China)
出处
《建井技术》
2021年第1期61-65,共5页
Mine Construction Technology
基金
淮南矿业(集团)有限公司创新项目(HX2020092067)。
关键词
井架
ANSYS
吊装应力
有限元
mine headframe
ANSYS
lifting stress
finite element
