固化灰渣土路基动力特性及稳定性试验研究  

Research on Experimental of Dynamic Characteristics and Stability of Solidified Ash Soil Subgrade

作　　者：李犇 陈志扬 卢奇 LI Ben;CHEN Zhiyang;LU Qi(CHN Energy Zhejiang Beilun No.1 Power Generation Co.,Ltd.,Ningbo 315010,China;Institution of Geotechnical Engineering,Ningbo University,Ningbo 315211,China)

机构地区：[1]国能浙江北仑第一发电有限公司,浙江宁波315010 [2]宁波大学岩土工程研究所,浙江宁波315211

出　　处：《中国资源综合利用》2025年第3期4-8,15,共6页China Resources Comprehensive Utilization

基　　金：宁波市专项定向委托科技合作项目(812404470)。

摘　　要：利用制备的固化剂,将灰渣与工程弃土进行固化处理,并开展固化灰渣土路用性能的动力特性和水稳定性试验,研究了固化剂掺量、围压、动应力比的影响。结果表明,随着固化剂掺量的增加,试样的动弹性模量明显增大,阻尼比变化较小;浸水24 h后,试样的动弹性模量降低15%~20%,阻尼比有一定的增长;随着动应力比的增长,动弹性模量弱化较为明显,阻尼比弱化较少。研究结论可以为灰渣的利用以及固化灰渣土路基的设计、动力反应分析提供参考。Using the prepared curing agent,the ash residue and engineering waste soil were solidified,and dynamic characteristics and water stability tests of the road performance of the solidified ash residue soil were conducted to study the effects of curing agent dosage,confining pressure,and dynamic stress ratio.The results showed that with the increase of curing agent dosage,the dynamic elastic modulus of the sample increased significantly,and the damping ratio changed little;after 24 h of immersion,the dynamic elastic modulus of the sample decreased by 15%~20%,and the damping ratio increased to some extent;as the dynamic stress ratio increases,the dynamic elastic modulus weakens more significantly,while the damping ratio weakens less.The research conclusion can provide reference for the utilization of ash and the design and dynamic response analysis of solidified ash soil subgrade.

关 键 词：固化 灰渣土 动弹性模量 阻尼比 水稳定性 

分 类 号：U238[交通运输工程—道路与铁道工程]