Research on Strain-temperature Joint Test Methods of Precast Piles by Using BOTDR

席均; 施斌; 魏广庆; 卢毅

doi:10.13409/j.cnki.jdpme.2012.03.004

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Research on Strain-temperature Joint Test Methods of Precast Piles by Using BOTDR

更新时间：2025-12-11

- Research on Strain-temperature Joint Test Methods of Precast Piles by Using BOTDR
- Vol. 32, Issue 3, Pages: 281-286(2012)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2012.03.004
  CLC： P274
- Published：2012
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[1]席均,施斌,魏广庆,卢毅.基于BOTDR的预制桩应变-温度联合测试方法研究[J].防灾减灾工程学报,2012,32(03):281-286.

席均, 施斌, 魏广庆, et al. Research on Strain-temperature Joint Test Methods of Precast Piles by Using BOTDR[J]. 2012, 32(3): 281-286.
[1]席均,施斌,魏广庆,卢毅.基于BOTDR的预制桩应变-温度联合测试方法研究[J].防灾减灾工程学报,2012,32(03):281-286. DOI： 10.13409/j.cnki.jdpme.2012.03.004.

席均, 施斌, 魏广庆, et al. Research on Strain-temperature Joint Test Methods of Precast Piles by Using BOTDR[J]. 2012, 32(3): 281-286. DOI： 10.13409/j.cnki.jdpme.2012.03.004.

摘要

提出了一种可以实现分布式应变-温度联合测试的方法

采用特殊封装的方法改变传感光缆的频移系数

用于空间差异式分布的温度补偿。通过预制桩浸水试验对该方法的有效性进行验证

采用该方法对监测数据进行温度补偿

对应变、温度沿桩身的分布规律以及随时间的变化规律进行了分析。研究表明:该应变-温度联合测试方法能够较好地解决温度在空间上差异式分布时的温度补偿问题;预制桩浸水试验中

水下渗导致的桩身温度变化较大

应变和温度2个因素对传感光缆上各点频移变化量的贡献比例关系较为复杂。

Abstract

This paper presents a distributed strain-temperature joint test method

which can be used for differently distributed temperature compensation by a special packaging way to switch sensing cable’s frequency shift coefficient.The feasibility of this method is verified by a submerging test of precast piles.This method is used in the test for temperature compensation.The strain-temperature distribution law along the pile body and variation law are analyzed.The study shows that: firstly

the strain-temperature joint test method can solve the differently distributed temperature compensation problem preferably.Secondly

temperature in a submerging test of precast piles changes greatly due to the infiltration of water

so the contribution of strain and temperature to frequency shift is complicated.

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references

分布式光纤传感技术在预制桩基桩内力测试中的应用 [J]. 魏广庆,施斌,贾建勋,胡盛,李科,张丹. 岩土工程学报 . 2009(06)

灌注桩检测中BOTDR温度补偿试验研究 [J]. 朴春德,施斌,朱友群,卢毅. 防灾减灾工程学报 . 2009(02)

基于BOTDR技术的隧道衬砌应变测量温度补偿实例分析 [J]. 丁勇,施斌,俞缙. 防灾减灾工程学报 . 2007(03)

基于BOTDR的分布式光纤传感器标定实验研究 [J]. 索文斌,施斌,张巍,崔何亮,刘杰,高俊启. 仪器仪表学报 . 2006(09)

高原冻土区桩基施工温度场研究 [J]. 贾晓云,朱永全,李文江. 岩土力学 . 2004(07)

BOTDR应变监测技术应用在大型基础工程健康诊断中的可行性研究 [J]. 施斌,徐洪钟,张丹,丁勇,崔何亮,陈斌,高俊启. 岩石力学与工程学报 . 2004(03)

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