长江科学院院报 ›› 2017, Vol. 34 ›› Issue (7): 41-47.DOI: 10.11988/ckyyb.20160273

• 工程安全与灾害防治 • 上一篇    下一篇

一种改进的空间相关系数在水库高边坡外观变形监测中的应用

胡添翼1,2, 游孟陶2, 陆天琳3, 王 成1, 董安雨1   

  1. 1.河海大学 水利水电学院, 南京 210098;
    2.上海市政工程设计研究总院 水利水运设计研究院,上海 200092;
    3. 上海市水务建设工程安全质量监督中心站,上海 200070
  • 收稿日期:2016-03-25 出版日期:2017-07-01 发布日期:2017-07-10
  • 作者简介:胡添翼(1991-),男,江苏南通人,硕士研究生,研究方向为大坝安全监测,(电话)0513-82594383(电子信箱)htyandy@me.com。
  • 基金资助:

    国家自然科学基金重点项目(41323001);高等学校博士学科点专项基金(20120094110005);江苏省杰出青年项目(BK20140039);水利部土石坝破坏机理与防控技术重点实验室基金项目(KY914002);江苏省2015年度普通高校研究生科研创新计划项目(KYXX15_0140,KYXX15_0138)

Application of an Improved Spatial Correlation Coefficient to Exterior Deformation Monitoring of High Slope in Reservoir Area

HU Tian-yi1,2, YOU Meng-tao2, LU Tian-lin3, WANG Cheng1, DONG An-yu1   

  1. 1.College of Water Conservancy and Hydropower,Hohai University,Nanjing 210098,China;
    2.Water Conservancy & Water Transport Design Institute, Shanghai Municipal Engineering Design Institute, Shanghai 200092, China;
    3.Shanghai Project Safety and Quality Supervision Center of Water Construction, Shanghai 200070, China
  • Received:2016-03-25 Published:2017-07-01 Online:2017-07-10

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摘要：

水库大坝常涉及边坡工程,传统边坡监测主要针对单个测点的变形和应力的变化情况,不太注重多测点边坡整体变形状态的分析。基于Pearson相关系数和Moran相关系数,考虑不同测点的空间坐标,提出一种空间相关系数,用以分析边坡各测点空间上的关联性质;并建立边坡外观变形监测的3个关联性指标:测点关联度Rij、测点影响度Ii、边坡整体度I。通过指标的变化趋势,从关联性角度实现对边坡整体性质的把握。通过对某混凝土坝左岸高边坡外观变形资料的分析,本文提出的空间相关系数符合实际,3个关联性指标具有一定的合理性,对分析边坡安全状态有一定辅助作用。

关键词: 高边坡, 外观变形监测, Pearson相关系数, Moran相关系数, 空间相关系数

Abstract:

Conventional monitoring of reservoir slope is mainly focused on the deformation and stress changes of single point rather than the overall deformation with multiple points. In view of this, an improved spatial correlation coefficient is proposed to calculate the spatial correlations among multiple points of slope. The present coefficient is based on Pearson’s correlation coefficient and Moran’s correlation coefficient, and takes the spatial coordinates of different measuring points into consideration. Three relevance indexes of exterior deformation of slope are proposed, namely relevance degree Rij of measuring point, influence degree Ii of measuring point, and integrity degree I of slope. The overall state of slope can be obtained according to the variation trends of the indexes. The present coefficient is applied to analyzing the deformation data of the high slope of a concrete dam, and the results prove that the coefficient presented in this paper is practical and rational for analyzing the safety of slopes.

Key words: high slope, exterior deformation monitoring, Pearson’s correlation coefficient, Moran’s correlation coefficient, spatial correlation coefficient

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