防灾减灾工程学报2023，Vol.43Issue(6)：1415-1424,10.DOI:10.13409/j.cnki.jdpme.20220718005
黄土高填方地基上部建筑施建控制标准研究
Study on Construction Control Standard of upper Buildings on Loess High Fill Foundation
摘要
Abstract
The post-construction settlement and construction time of the superstructure on the loess high-fill foundation are the focus of current research.Based on the monitoring results of the post-con-struction settlement of the test section,the MIDAS/GTS-NX numerical inversion analysis method was used to obtain the creep mechanical parameters of the filled soil,and the post-construction settle-ment characteristics of the high-rise and low-rise buildings under different eccentricities and construc-tion time were systematically studied.The results show that:(1)The parameters of fill material ob-tained by layered iterative inversion analysis based on measured data reflect the actual loading state of loess high fill and post-construction settlement behaviour of the upper buildings accurately.(2)For low-rise or high-rise building with eccentricity w=0 m or w=221 m,the local tilt is minimal and all meet the requirements of local tilt f<0.002.It is recommended that for low-rise building construc-tion,the eccentricity w≥157 m and construction time t≥1.21 years.For high-rise building construc-tion,the eccentricity w≥155 m,construction time t≥1.5 years after construction.Through the re-search of this paper,it can provide scientific reference for the construction location and construction time of high fill top buildings similar to"building a city up the hill".关键词
黄土高填方/工后沉降/上部建筑/施建时间/反演分析Key words
loess high fill/post-constructionsettlement/upper building/construction time/inversion analysis分类
建筑与水利引用本文复制引用
马云峰,彭森,葛苗苗,朱才辉..黄土高填方地基上部建筑施建控制标准研究[J].防灾减灾工程学报,2023,43(6):1415-1424,10.基金项目
陕西省重点研发计划项目(2021SF2-02 （）
2022SF-197)、陕西省城市地质与地下空间工程技术研究中心开放性课题(2022KT-01)资助 （2022KT-01）
