长江科学院院报2016，Vol.33Issue(9)：48-51,4.DOI:10.11988/ckyyb.20150654
基于BOTDA的深基坑桩锚支护结构变形监测
Deformation Monitoring of Pile and Anchor Supporting Structure of Deep Foundation Pit Using BOTDA
摘要
Abstract
BOTDA distributed optic fiber monitoring technology was used to monitor the deformation of pile and an-chor supporting structure of deep foundation pit.Through long-term strain monitoring of H-steel and pre-stressed an-chor of the supporting structure during the excavation process,the deflection distribution of H-steel and stress distri-bution of pre-stressed anchor were obtained.On this basis,the stress and deformation state of H-steel and pre-stressed anchor was analyzed,providing reliable reference for pit construction.Engineering practice shows that de-formation monitoring for foundation pit's supporting structure using distributed optical fiber sensing technology based on BOTDA is feasible and has the advantage of continuous monitoring.关键词
深基坑支护/ESC-H钢桩/预应力锚索/BOTDA/变形监测Key words
deep foundation pit support/ESC-H steel piles/pre-stressed anchor/BOTDA/deformation monitoring分类
建筑与水利引用本文复制引用
李立贡,丁勇,马斌斌,周克明..基于BOTDA的深基坑桩锚支护结构变形监测[J].长江科学院院报,2016,33(9):48-51,4.基金项目
中央级公益性科研院基本科研业务费专项 （）
