振动扰动对软黏土排水特性的影响

马雨佳 ,  苗永红 ,  殷杰

科学技术与工程 ›› 2025, Vol. 25 ›› Issue (34) :14838-14844

PDF (6804KB)
科学技术与工程 ›› 2025, Vol. 25 ›› Issue (34) :14838-14844 DOI: 10.12404/j.issn.1671-1815.2501329
建筑科学

振动扰动对软黏土排水特性的影响

作者信息 +

Effect of Vibration Disturbance on Drainage Characteristics of Soft Clay

Author information +
文章历史 +

摘要

由于施工机械和车辆的影响,低频静、动循环荷载振动扰动会显著削弱软黏土的力学性能。采用自主研制的LD-8动力固结渗透仪,对不同围压、频率和扰动持续时长下的软黏土进行了一系列低频静、动循环荷载扰动排水的室内试验,以探讨低频循环扰动对软黏土排水特性的影响。结果表明,振动扰动削弱了软黏土的排水能力和排水处理效果。低频循环荷载的扰动影响随持续时长、频率的增加而加强,随围压的增加而减弱。提出新扰动度(RD),来定量表征低频循环荷载对排水行为的影响,并与以往研究结果对比验证了其合理性。研究结果可为受循环振动影响软黏土的地基处理提供有价值的参考。

Abstract

Due to the influence of construction machinery and vehicles, low-frequency static and dynamic cyclic load vibration disturbance will significantly weaken the mechanical properties of soft clay. A series of laboratory tests were carried out on soft clay using the LD-8 dynamic consolidation permeator, a device developed independently. These tests were performed under varying confining pressures, frequencies, and disturbance durations to investigate the impact of low-frequency static and dynamic cyclic loading on the soft clay drainage. The results show that the vibration disturbance weakens the drainage deformation ability and the drainage treatment effect of soft clay. The disturbance effect of the low-frequency cyclic load is strengthened with the increase in duration, frequency and weakened with the increase of confining pressure. A new disturbance degree (RD) was proposed to quantitatively characterize the effect of cyclic vibration load on drainage deformation behavior, and its rationality was verified by comparison with previous research results. This paper can provide a valuable reference for dealing with the foundation treatment of soft clay affected by cyclic vibration.

关键词

排水量 / 排水比 / 扰动度 / 软黏土

Key words

drainage volume / drainage ratio / disturbance degree / soft clay

引用本文

引用格式 ▾
马雨佳, 苗永红, 殷杰. 振动扰动对软黏土排水特性的影响[J]. 科学技术与工程, 2025, 25(34): 14838-14844 DOI:10.12404/j.issn.1671-1815.2501329
MA Yu-jia, MIAO Yong-hong, YIN Jie. Effect of Vibration Disturbance on Drainage Characteristics of Soft Clay[J]. Science Technology and Engineering, 2025, 25(34): 14838-14844 DOI:10.12404/j.issn.1671-1815.2501329

登录浏览全文

4963

注册一个新账户 忘记密码

参考文献

基金资助

国家自然科学基金(51978315)

PDF (6804KB)

36

访问

0

被引

详细

导航
相关文章

/

〈 〉