期刊论文

The Experimental Study on Single-direction Low-frequency Vibration of Uranium Tailings Pond Beach Face of Radon Exhalation Effect

中文

南华大学学报(自然科学版)

1673-0062

2020

34

1

9-15

10.19431/j.cnki.1673-0062.2020.01.002

11875164:国家自然科学基金 2019JJ50489:湖南省自然科学基金 18A232:湖南省教育厅科学研究项目

本校为第一机构

我国地震多发且一般属于低频振动,其对铀尾矿库滩面具有影响。通过自制双向水平振动台氡析出测试装置,制作了φ100 mm×300 mm (250 mm铀尾砂加盖50 mm的红土)分层压实的铀尾矿库模拟滩面模型,分析对比了振动前后铀尾矿库滩面氡析出率变化规律。试验研究表明:在前后方向水平振动(10,20,30 Hz)条件下,滩面氡析出率总体呈现先上升后下降规律,左右水平振动条件下,滩面氡析出率呈现先下降后上升。红土覆盖层覆盖后,氡析出率有所降低。综上所述,低频振动对于铀尾矿库滩面氡析出的影响较大,试验结果可以铀尾矿库退役治理提供一定的理论参考。

Quake occurs quite often in China,and it can simplify as low-frequency vibration,which has the great impact on the uranium tailings pond beach face.Two-direction horizontal shaking table for testing radon exhalation,home-made device is used to make the simulated compressed uranium tailings pond beach face model(φ100 mm×300 mm,included 250 mm uranium tailings and 50 mm red clay) and analyse the regulation of radon exhalation rate on uranium tailings pond beach face before and after vibration.The results have been showed as follows:(1) under th...