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江苏常州地面沉降监测与发展趋势分析

顾春生 杨磊 闵望 张其琪 卢毅 苏东

顾春生,杨磊,闵望,等. 江苏常州地面沉降监测与发展趋势分析[J]. 中国地质灾害与防治学报,2023,34(2): 82-91 doi: 10.16031/j.cnki.issn.1003-8035.202202054
引用本文: 顾春生,杨磊,闵望,等. 江苏常州地面沉降监测与发展趋势分析[J]. 中国地质灾害与防治学报,2023,34(2): 82-91 doi: 10.16031/j.cnki.issn.1003-8035.202202054
GU Chunsheng,YANG Lei,MIN Wang,et al. Monitoring and analyzing the development trend of land subsidence in Changzhou City, Jiangsu Province[J]. The Chinese Journal of Geological Hazard and Control,2023,34(2): 82-91 doi: 10.16031/j.cnki.issn.1003-8035.202202054
Citation: GU Chunsheng,YANG Lei,MIN Wang,et al. Monitoring and analyzing the development trend of land subsidence in Changzhou City, Jiangsu Province[J]. The Chinese Journal of Geological Hazard and Control,2023,34(2): 82-91 doi: 10.16031/j.cnki.issn.1003-8035.202202054

江苏常州地面沉降监测与发展趋势分析

doi: 10.16031/j.cnki.issn.1003-8035.202202054
基金项目: 常州城市地质调查(苏锡常都市圈西部环境地质调查)[苏财建[2017]160号];江苏省自然资源厅科技项目(2017001);江苏省自然资源厅科技项目(2020025)
详细信息
    作者简介:

    顾春生(1990-),男,江苏宿迁,硕士,工程师,主要从事地面沉降、地裂缝灾害防治研究工作。 E-mail:987411942@qq.com

    通讯作者:

    杨 磊(1981-),男,江苏南京,硕士,教授级高工,主要从事城市地质调查、自然资源调查评价等工作。E-mail:cumtgcs@163.com

  • 中图分类号: P642.26

Monitoring and analyzing the development trend of land subsidence in Changzhou City, Jiangsu Province

  • 摘要: 地面沉降是常州市区主要地质灾害之一,也是制约常州城市经济发展的重要环境地质问题。为了厘清常州市区地面沉降态势,提升灾害防治能力,文章优化形成了集一等水准测量、GPS-InSAR监测、基岩标和分层标、光纤监测孔等多种监测技术方法,点-线-面相结合的常州市地面沉降立体监测网络,有效提升了常州市区地面沉降监测的精度及可靠性。基于常州城市地质调查成果,系统归纳了近几十年常州市区地面沉降发展历程。利用建成的多方法地面沉降监测网络获取的沉降变形数据,得出常州市区地面沉降总体现状及发展趋势、重点沉降区分布、主要沉降层位及成因机理等,最终提出常州市区地面沉降防治建议,为以后城市地质调查工作中地面沉降监测与防控工作提供参考。
  • 图  1  常州市地面沉降及地下水位历史演化

    Figure  1.  Historical evolution of land subsidence and groundwater level in Changzhou City

    图  2  常州市地面沉降监测工作部署图

    Figure  2.  Field work deployment map of land subsidence monitoring in Changzhou City

    图  3  金坛盐穴腔体沉降变形监测传感器布设示意图

    Figure  3.  Schematic view of sensors for settlement deformation monitoring at Jintan salt caverns

    图  4  常州市InSAR监测地面沉降速率图(2019年)

    注:形变负值表示地面沉降。

    Figure  4.  InSAR monitoring land subsidence rate map of Changzhou City (2019)

    图  5  2019年常州市区地面沉降分布

    Figure  5.  Ground settlement distribution map of Changzhou City

    图  6  常州南北向水准监测数据(2013—2019年)

    注:形变负值表示沉降。

    Figure  6.  Annual settlement deformation leveling data for north-south direction in Changzhou City from 2013 to 2019

    图  7  常州儒林镇地面沉降演化(InSAR)

    注:形变量负值表示沉降。

    Figure  7.  Evolution of land subsidence in Rulin Town, Changzhou City (InSAR)

    图  8  儒林Ⅱ承压水位埋深与沉降分布图

    Figure  8.  Distribution map of settlement deformation and water level in Rulin Town, Changzhou City

    图  9  盐矿区InSAR监测地面沉降速率图(2017年)

    Figure  9.  Land subsidence rate monitored by InSAR at salt mine area (2017)

    图  10  盐矿区采盐井沉降演化

    Figure  10.  Sedimentation evolution at monitoring leveling points in salt mine area

    图  11  垂向分布式光纤监测数据

    Figure  11.  Strain data of vertical distributed optical fiber sensor

    图  12  清凉小学分层标累计沉降情况

    Figure  12.  The cumulative settlement of layerwise mark of Qingliang primary school

    图  13  常州市清凉小学分层标回弹情况

    注:回弹量为负值表示沉降。

    Figure  13.  Stratified standard rebound of layered marks at Qingliang primary school

    表  1  1984—2020年土层累计压缩/回弹量统计表

    Table  1.   Summary table of cumulative soil compression/ rebound measurements from 1984 to 2020

    地层层段1984—2004年累计
    压缩量/mm
    分层沉降
    占比/%
    2004—2020年累计
    回弹量/mm
    分层回弹
    占比/%
    0~39 m16.572.4800
    39~92 m365.5854.773546.7
    92~109 m79.1111.842229.3
    109 m206.9030.911824.0
    累计沉降668.00100.0075100.0
    下载: 导出CSV
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  • 收稿日期:  2022-02-26
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