Comparative Analysis of Fiber Monitoring and Numerical Simulation on the K3 Slope of Guangdong-Jiangxi Expressway

宋震; 王宝军; 施斌; 张丹; 隋海波; 李海涛

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Comparative Analysis of Fiber Monitoring and Numerical Simulation on the K3 Slope of Guangdong-Jiangxi Expressway

更新时间：2025-12-11

- Comparative Analysis of Fiber Monitoring and Numerical Simulation on the K3 Slope of Guangdong-Jiangxi Expressway
- Vol. 29, Issue 4, Pages: 444-450(2009)
- 作者机构：
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  CLC： 416.14
- Published：2009
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[1]宋震,王宝军,施斌,张丹,隋海波,李海涛.粤赣高速公路K3边坡光纤监测与数值模拟对比分析[J].防灾减灾工程学报,2009,29(04):444-450.

宋震, 王宝军, 施斌, et al. Comparative Analysis of Fiber Monitoring and Numerical Simulation on the K3 Slope of Guangdong-Jiangxi Expressway[J]. 2009, 29(4): 444-450.
[1]宋震,王宝军,施斌,张丹,隋海波,李海涛.粤赣高速公路K3边坡光纤监测与数值模拟对比分析[J].防灾减灾工程学报,2009,29(04):444-450. DOI：

宋震, 王宝军, 施斌, et al. Comparative Analysis of Fiber Monitoring and Numerical Simulation on the K3 Slope of Guangdong-Jiangxi Expressway[J]. 2009, 29(4): 444-450. DOI：

摘要

本文采用基于FLAC3D软件的数值模拟方法

对粤赣高速公路K 3边坡工程锚杆的应力应变状态进行数值模拟

分析了全长粘结式锚杆的荷载传递机理;根据运用基于自发布里渊背向散射原理（BOTDR）的分布式光纤应变传感技术对锚杆的轴向应变进行的监测数据

分析了工程锚杆的变形特征。数值模拟与实测数据的对比分析表明

模拟曲线与监测曲线反映的工程锚杆的变形特征具有较高的一致性

验证了应用FLAC3D有限差分软件模拟锚杆-框架体系应力应变特征的合理性

以及基于BOTDR的锚杆应变分布监测的可行性。

Abstract

By use of the method of FLAC3D-based numerical simulation on the K3 slope of Guangdong-Jiangxi expressway

the stress transfer mechanism of fully grouted anchor bolt was studied;and using the distributed strain sensing technology based on spontaneous Brillouin backscattering

a long-term monitoring on the axial strain of anchor bolt was made

and the deformation characteristics and performance of distributed optical fiber strain sensing were analyzed.By comparison of simulation results and monitoring data

it is verified that bolt-frame system could be applied to rock slope and anchor bolt monitoring based on BOTDR is feasible.

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references

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