| 祁亚科,刘平利,许铜建.郑州市地面沉降光纤监测方法研究[J].矿产勘查,2025,16(S1):253-259 |
| 郑州市地面沉降光纤监测方法研究 |
| Evaluation on ground subsidence of Zhengzhou City by optical fiber monitoring method |
| 投稿时间：2023-09-27 |
| DOI：10.20008/j.kckc.2025S1031 |
| 中文关键词: 光纤监测 地面沉降 监测层位 分布式光纤传感器 钻孔回填 |
| 英文关键词: fiber optic monitoring land subsidence monitoring layer distributed fiber optic sensor drilling and backfilling |
| 基金项目:本文受郑州市自然资源和规划局项目“郑州市多要素城市地质调查(DKSHT-2020-0116)”资助。 |
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| 中文摘要: |
| 本文基于郑州市城区地面沉降监测项目，通过对光纤传感技术的地面沉降监测研究，建设基于光纤传感技术的地面沉降监测系统，密切观测地层变化情况、地下水变化情况，得出结论:(1)选取合适的光纤材料准确安装，可精细化测量钻孔全断面土层变形信息，为研究地层变形机理，变形防治方法提供了十分先进的监测手段；(2)长期监测钻孔全断面土层变形信息、温度变化信息和渗透水压力变化信息，获得多场多参量数据，为地面沉降的防治提供依据；(3)介绍了该技术在该项目中涉及的传感光缆和传感器选择、钻孔回填材料、光缆 -土的耦合性评价和光缆及传感器植入方法等关键技术流程。具有重要的工作示范意义；(4)结合 INSAR、GPS、水准测量、基岩标和分层标监测成果，准确分析区域地面沉降的成因。 |
| 英文摘要: |
| Depending on the project of land subsidence monitoring in main city zone of Zhengzhou，a land subsidence monitoring system based on the optical fiber sensing technology was exerted. The monitoring systemcan closely observe the changes in the layer and the underground water. The following three conclusions are listed:(1)Selecting appropriate optical fiber material and installing accurately，are adwantageous to measure the fulllayer deformation structure in the borehole and provide a very advanced monitoring method for studying themechanism and prevention methods of layer deformation；(2)According to the long-term monitoring of the layer deformation，temperature change and permeation water’s pressure change in the drilled hole’s soil layer，the system can obtain data of multiple fields and parameters and provide a basis for prevention and treatment of landsubsidence；(3)The key technical processes which is involved in this project，including the selection of sensing optical cables and sensors，drilling and backfilling materials，evaluation of optical cable-soil coupling，and implantation methods of optical cables and sensors，are introduced，which is important significance of work demonstration.(4)Accurately analyze the causes of regional land subsidence based on the monitoring results of INSAR，GPS，leveling，bedrock markers，and layered markers. |
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