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; 游孟陶; 陆天琳; 王 成; 董安雨

doi:10.11988/ckyyb.20160273

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raybet体育在线院报 ›› 2017, Vol. 34 ›› Issue (7) : 41-47. DOI: 10.11988/ckyyb.20160273

工程安全与灾害防治

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

作者信息 +

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

HU Tian-yi^1,2, YOU Meng-tao², LU Tian-lin³, WANG Cheng¹, DONG An-yu¹

Author information +

文章历史 +

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R_ij、测点影响度I_i、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。

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 R_ij of measuring point, influence degree I_i 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.

导出引用

胡添翼, 游孟陶, 陆天琳, 王成, 董安雨. 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[J]. raybet体育在线院报. 2017, 34(7): 41-47 https://doi.org/10.11988/ckyyb.20160273

HU Tian-yi, YOU Meng-tao, LU Tian-lin, WANG Cheng, DONG An-yu. Application of an Improved Spatial Correlation Coefficient to Exterior Deformation Monitoring of High Slope in Reservoir Area[J]. Journal of Changjiang River Scientific Research Institute. 2017, 34(7): 41-47 https://doi.org/10.11988/ckyyb.20160273

中图分类号： TV698.1

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基金

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)