基于高密度面波技术的水闸地基隐患检测研究
Research on hidden danger detection of sluice foundation based on high-density surface wave technology
田苡菲 1尚海龙 1郭静娜 2田铮 3李铮 3黄涛4
作者信息
- 1. 北京江河中基工程咨询有限公司 北京 100073
- 2. 北京绿都锦绣水务建设有限公司 北京 101212
- 3. 北京市北运河管理处 北京 101125
- 4. 中国水利水电科学研究院 北京 100038
- 折叠
摘要
为了保证北关拦河闸的安全,采用高密度面波技术对水闸防渗墙进行检测,通过数值模拟完成检测范围内地质构造剪切波分布图及地基标贯值分布断面.防渗墙位处的剪切波速度分层表明水闸防渗墙基本完整;用范围内地质构造的剪切波速度换算其对应的标贯值,对比地质土层的初设资料,发现地层标贯值得到提高;本次检测未发生问题,建议进行水闸底板脱空检测,判断沉降原因.研究成果可为其他水闸或水工建筑物的检测提供理论和方法上的支持.
Abstract
To ensure the safety of the Beiguan sluices,high-density surface wave technology is utilized for detecting the anti-seepage wall of the sluice.Anti-seepage walls in water gates were detected using high-density surface wave technology.The distribution map of geological structure shear waves and the distribution cross-section of foundation standard penetration values within the detection range were com-pleted through numerical simulation.The results indicated that the layered shear wave velocity stratifica-tion at the location of the anti-seepage wall was basically complete.Moreover,the conversion of shear wave velocity of geological structures within the range into their corresponding standard penetration value(SPV)"n",which revealed an improvement in the formation's SPV compared to the preliminary design da-ta of geological soil layers.There were no issues with this test.However,it's recommended to conduct de-tection of sluice floor voids to ascertain the cause of settlement.This study will serve as a valuable theoret-ical and methodological resource for the detection of other sluices or hydraulic structures.
关键词
水闸/高密度面波/防渗墙/剪切波/桩基标贯值Key words
sluice/high density surface wave/impervious wall/shear wave/standard penetration val-ue of pile foundation引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据