科技创新与应用2024，Vol.14Issue(36)：110-113,4.DOI:10.19981/j.CN23-1581/G3.2024.36.025
软土地层隧道盾构掘进对地表沉降的影响研究
张振 1张旭 2王萍 1施振跃 1孙迪3
作者信息
- 1. 山东科技大学,山东 泰安 271000
- 2. 山东省交通科学研究院,济南 250000
- 3. 华电章丘发电有限公司,济南 250000
- 折叠
摘要
Abstract
In this paper,the shield underground tunnel project in Jinan city is taken as the background for the study,and the effect of shield tunneling on surface subsidence in soft soil layer is investigated,and the results show that:In the process of shield tunneling,the surface subsidence generally increases gradually with time,indicating that the change of surface subsidence value is positively related to the tunneling time and the progress of shield tunneling.In shield tunneling,the subsidence curve of the surface with the same cross-section is symmetrically distributed along the centerline of the shield tunnel,and the maximum subsidence is near the centerline of the shield tunnel.In the shield tunnel excavation,the maximum subsidence reached-27.96 mm near 1-CD4.Adopting measures such as reinforcing the soil layer in advance,selecting reasonable monitoring points to appropriately increase the monitoring frequency,and timely adjusting the shield construction parameters can pre-control the surface settlement.关键词
软土地层/隧道盾构/地表沉降/安全施工/预控Key words
soft ground/tunnel shield/surface settlement/safe construction/predictive control分类
交通工程引用本文复制引用
张振,张旭,王萍,施振跃,孙迪..软土地层隧道盾构掘进对地表沉降的影响研究[J].科技创新与应用,2024,14(36):110-113,4.
