摘要
以广州某深基坑工程为例,在FLAC3D模拟基坑开挖过程,对基坑水平位移及地表沉降进行模拟监测,将数值模拟监测结果与实际过程监测数据进行对比,模拟最大水平位值-15.3 mm,模拟最大沉降值11.3 mm,实际监测最大水平位移值-12.6 mm,实际监测最大沉降值-8.47 mm,其变形位移趋势十分相似,吻合度较好,验证FLAC3D数值模拟的合理性,在深基坑支护设计运用是可行的,为本地区或相类似的深基坑工程提供参考。
This paper takes a deep foundation pit project in Guangzhou as an example,and simulates the excavation process of the foundation pit using FLAC3D.The horizontal displacement and surface settlement of the foundation pit are monitored and simulated.The numerical simulation monitoring results are compared with the actual process monitoring data.The simulated maximum horizontal position value is-15.3 mm.The simulated maximum settlement value is 11.3 mm.The actual monitored maximum horizontal displacement value is-12.6 mm,and the actual monitored maximum settlement value is-8.47 mm.The deformation displacement trend is very similar and the agreement is good,which verifies the rationality of FLAC3D numerical simulation.It is feasible to apply it in the design of deep foundation pit support and provides a reference for similar deep foundation pit projects in the local area.
作者
何永胜
程木星
He Yongsheng;Cheng Muxing(Guangzhou Urban Planning&Design Survey Research Institute,Guangzhou 510060,Guangdong,China;China Water Resources and Hydropower Tenth Engineering Bureau Co.,Ltd.,Chengdu 610028,Sichuan,China)
出处
《绿色科技》
2025年第2期239-246,共8页
Journal of Green Science and Technology
关键词
基坑变形
数值模拟
本构模型
FLAC3D
deformation of foundation pit
numerical simulation
constitutive model
FLAC3D
