文献类型：期刊文献

英文题名：Numerical Analysis and Optimization of Displacement of Enclosure Structure Based on MIDAS Finite Element Simulation Software

作者：Han, Guansheng[1];Zhang, Youjian[1];Zhang, Jiqing[1];Zhang, Haibin[2,3]

机构：[1]Shaoxing Univ, Key Lab Rock Mech & Geohazards Zhejiang Prov, Shaoxing 312000, Peoples R China;[2]Nanjing Hydraul Res Inst, Nanjing 210029, Peoples R China;[3]Yangtze Inst Conservat & Dev, Nanjing 210098, Peoples R China

年份：2025

卷号：15

期号：9

外文期刊名：BUILDINGS

收录：SCI-EXPANDED(收录号：WOS:001486572500001)、、EI(收录号：20252018412385)、Scopus(收录号：2-s2.0-105004794560)、WOS

基金：This research was funded by the National Natural Science Foundation of China (Grant no. 52304096).

语种：英文

外文关键词：numerical simulation; Midas GTS NX; diaphragm wall; excavation method

外文摘要：The use of envelope structures is crucial in enhancing the safety and stability of foundation pits. However, excavation activities in the foundation pit can result in deformations affecting the envelope structure. To investigate the impact of the excavation process on the envelope structure and surrounding soil, the Midas GTS NX 2022R1 (64-bit) finite element software was employed to model the excavation process of Nantong East Railway Station. The settlement of the soil around the envelope structure and the horizontal displacement of the underground diaphragm wall (UDW) were compared with field measurements. The analysis demonstrated that the numerical analysis results exhibited a similar trend to the data obtained from field monitoring. This comparison provided valuable insights for selecting an optimal excavation method for the foundation pit and offered guidance for addressing similar challenges in the future. Additionally, a new method using metamaterials as a frame to improve the stability of continuous walls is proposed. The method relies on the excellent mechanical properties of metamaterials, improves the integrity and stability of the underground diaphragm wall, and provides a new way to solve the stability problem of underground diaphragm walls.