摘要
为提升电渗处置的能量利用效率,开展了不同加载方式和加载电势梯度的室内电渗排水试验,分析了能耗系数和瞬时能耗系数随排水时间和含水率的变化规律,提出了低能耗的过湿土路基电渗排水逐级加载方法。结果表明:电渗过程中能耗系数呈现先下降后上升的趋势;瞬时能耗系数最低时的加载电势梯度与平均含水率负相关,两者为幂函数关系;以此幂函数关系确定最优加载电势梯度的低能耗加载方式,较1.2 V∙cm^(-1)稳压加载节约54%的能耗,较逐级加载节约23%的能耗。
In order to improve the energy utilization efficiency of electroosmotic drainage in over-wet subgrade,electroosmotic drainage laboratory tests with different loading methods and potential gradients were carried out,and the evolution characteristics of energy consumption coefficient and instantaneous energy consumption coefficient with time and water content were analyzed.Finally,a stepwise loading method with low energy consumption was proposed.The results show that the energy consumption coefficient initially declines and subsequently increases in electroosmotic drainage tests.The negative correlation between the loading potential gradient with the lowest instantaneous energy consumption coefficient and the average moisture content can be expressed by power function.The low energy consumption stepwise loading mode based on the power function can save 54%energy compared with the stable voltage loading at 1.2 V∙cm^(−1) and 23%energy compared with the traditional stepwise loading.
作者
钱劲松
杨以诚
张玉
卢军源
QIAN Jinsong;YANG Yicheng;ZHANG Yu;LU Junyuan(Key Laboratory of Road and Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China;Guangxi Communications Investment Technology Co.,Ltd.,Nanning 530029,China)
出处
《同济大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2023年第8期1191-1198,F0002,共9页
Journal of Tongji University:Natural Science
基金
广西重点研发计划(AB20238031)
江西省交通运输厅科技项目(2020C0002)。
关键词
路基工程
电渗排水
能耗
电势
逐级加载
subgrade engineering
electroosmotic drainage
energy consumption
potential
stepwise loading
作者简介
第一作者:钱劲松(1980-),钱劲松,男,同济大学教授,博士生导师。现任同济大学交通科学与技术研究院副院长、交通运输工程学院路基工程技术中心主任,兼任中国仿真学会道路基础设施建模与仿真专委会副主任委员、中国土木工程学会市政分会常务理事、国际智能建设学会委员、《中国公路学报》编委等。钱劲松教授长期从事道路路基设计理论与工程技术、道路智能建设与养护技术的研究。已主持国家重点研发计划课题、国家自然科学基金项目和各省部级交通科技项目十余项。发表论文96篇,出版专著3部,主编和参编行业地方标准8部。获国家科学技术进步奖二等奖1项、国家教学成果奖二等奖1项,以及其他省部级科技进步奖一等奖6项、二等奖8项。主要研究方向为道路与机场工程。E-mail:qianjs@tongji.edu.cn。