摘要
本文基于杭州某高架桥桩基的试桩工程,通过对现场实测分析,得到如下结果:软土地层大直径桩(D=1.5 m)施工对邻近既有运营隧道的影响范围为0.33~0.50 H(H为桩长)。近桩隧道比远桩隧道受基桩施工影响的敏感度相对更高,以同期的变化速率来看,约是1.5~2.6倍关系。基桩施工对于远处的右线隧道几乎无影响。
Based on the pile test project of a viaduct foundation in Hangzhou,the following results are obtained through the analysis of the field measurement:The influence range of construction of large diameter pile in soft soil layer(D=1.5 m)on the adjacent existing operating tunnel is 0.33-0.50 H(H is pile length).The sensitivity of near-pile tunnel to the influence of foundation pile construction is relatively higher than that of far-pile tunnel,and the change rate is about 1.5-2.6 times in the same period.Foundation pile construction has little effect on the far right line tunnel.
作者
张益锋
陈冰冰
王立峰
黄登柯
寿凌超
包挺
Zhang Yifeng;Chen Bingbing;Wang Lifeng;Huang Dengke;Shou Lingchao;Bao Ting(Hangzhou Xiaoshan Urban Infrastructure Construction Co.,Ltd.,Hangzhou 311200,China;Hangzhou Xiaoshan Urban Construction Investment Group Co.,Ltd.,Hangzhou 311200,China;Zhejiang Mingsui Technology Co.,Ltd.,Hangzhou 311400,China)
出处
《科技通报》
2024年第1期44-48,共5页
Bulletin of Science and Technology
关键词
桩基
隧道
水平位移
沉降
pile foundation
tunnel
horizontal displacement
settlement
