云南水力发电2024，Vol.40Issue(8)：93-98,102,7.DOI:10.3969/j.issn.1006-3951.2024.08.023
复合土层盾构管片分块形式对内力及变形的影响
Influence of Segmented Shield Tunnel Segments in Composite Soil Layers on Internal Forces and Deformation
摘要
Abstract
A two-dimensional numerical model of shield tunnel lining segments was established based on numerical simulation calculation methods.Based on the example of the Longquan inverted siphon shield tunnel project for water diversion in central Yunnan,the internal force and deformation of each shield tunnel segment in different block forms(1/3 top block,1/2 top block,equal block)under different burial depth load conditions of the composite soil layer were calculated.The influence of shield tunnel segment block forms on the internal force and deformation of the lining structure was summarized and analyzed.The results show that different block forms have a significant impact on the distribution of bending moments in the lining structure,while their impact on the changes in stress and deformation of the lining structure is minimal.关键词
盾构管片/管片分块/特征参数/复合土层/力学特性Key words
shield tunnel segment/segmentation of pipe segment/characteristic parameter/composite soil layer/mechanical property分类
建筑与水利引用本文复制引用
陈域,张文全,杨永杰,何萌..复合土层盾构管片分块形式对内力及变形的影响[J].云南水力发电,2024,40(8):93-98,102,7.基金项目
云南省重大科技专项计划(202002AF080003) （202002AF080003）
