基于瑞利波法的堤坝渗漏通道探测布线及尺寸确定方法  

Wiring and Sizing Method for Leakage Channel Detection Based on Rayleigh Wave Method

作　　者：陈荣劭 许增光[1] 曹成 赵凌峰 CHEN Rong-shao;XU Zeng-guang;CAO Cheng;ZHAO Ling-feng(State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China,Xi'an University of Technology,Xi'an 710048,China)

机构地区：[1]西安理工大学西北旱区生态水利国家重点实验室,陕西西安710048

出　　处：《水电能源科学》2025年第1期112-116,共5页Water Resources and Power

基　　金：国家自然科学基金项目(52179143,52209167);陕西省科技创新团队项目(2022TD-01)。

摘　　要：渗流管涌是堤坝最常见的破坏形式之一,精确定位和探测渗漏通道对于堤坝安全至关重要。为准确探测堤坝渗漏通道范围及尺寸大小,降低瑞利波探测方法的工作量,提出了正交、平行和环形综合测线布置方案,同时对不同尺寸渗漏通道进行数值模拟分析,创新了一种渗漏通道尺寸确定方法。研究结果表明,测线对称布置对探测结果影响较小,采用正交布置测线可确定渗漏通道深度,而结合平行布置测线可确定渗漏通道走向,环形布置测线则可对结果进行辅助验证。通过对比不同渗漏通道尺寸频散曲线“之”字形拐点的“曲折度”变化,建立了“之”字形拐点“曲折度”与通道尺寸之间的联系,可通过“曲折度”推断出通道尺寸具体大小。研究成果可为确定渗漏通道具体位置和尺寸大小提供新思路。Seepage pipe surges are one of the most common forms of damage to levees and dams,and accurate loca-tion and detection of seepage channels is critical to levee safety.In order to accurately detect the range and size of seepage channels and reduce the workload of the Rayleigh wave detection method,the study proposes an integrated orthogonal,parallel and circular survey line arrangement,and at the same time,numerical simulation analysis of seepage channels of different sizes is carried out,so as to innovate a method of determining the size of seepage channels.The results show that the symmetrical arrangement of the lines has less influence on the detection results,and the orthogonal arrangement of the lines can be used to determine the depth of the leakage channel,while the parallel arrangement of the lines can be used to determine the direction of the leakage channel,and the annular arrangement of the lines can be used to assist in the validation of the results.By comparing the changes in the zigzag inflection points of the dispersion curves of different leakage channel sizes,the zigzag inflection points of the zigzag inflection points of the zigzag inflection points of the zigzag inflection points are established.The connection between"zigzag inflection point"and channel size is established,and the specific size of channel size can be deduced from"zigzag degree".The research results can provide new ideas for determi-ning the specific location and size of the leakage channel.

关 键 词：渗漏通道 瑞利波探测 数值模拟 频散曲线 

分 类 号：TV233.4[水利工程]