[1]付冬平,刘 旻,刘飞禹,等.不同防护措施道路下埋地排水管道力学特性研究[J].华南地震,2026,46(05):70-77.[doi:10.13512/j.hndz.2026.05.09]
　FU Dongping,LIU Min,LIU Feiyu,et al.Research on Mechanical Characteristics of Buried Drainage Pipelines Under Road Conditions with Different Protective Measures[J].,2026,46(05):70-77.[doi:10.13512/j.hndz.2026.05.09]
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不同防护措施道路下埋地排水管道力学特性研究()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
46
期数:
2026年05期
页码:
70-77
栏目:
土木工程防震减灾
出版日期:
2026-09-07

文章信息/Info

Title:
Research on Mechanical Characteristics of Buried Drainage Pipelines Under Road Conditions with Different Protective Measures
文章编号:
1001-8662（2026）05-0070-08
作者:
付冬平1; 刘 旻2; 刘飞禹2; 张 弘1; 林春秀1
1.北京市市政工程设计研究总院有限公司，北京 100082;2.上海大学力学与工程科学学院，上海 200444
Author(s):
FU Dongping1; LIU Min2; LIU Feiyu2; ZHANG Hong1; LIN Chunxiu1
1.Beijing General Municipal Engineering Design&Research Institute Co., Ltd., Beijing 100082, China;2.School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, China
关键词:
交通荷载; 排水管道; 有限元分析; 土工格栅; 橡胶—砂混合土
Keywords:
Traffic load;  Drainage pipeline;  Finite element analysis;  Geogrid;  Rubber-sand mixed soil
分类号:
TU443
DOI:
10.13512/j.hndz.2026.05.09
文献标志码:
A
摘要:
为研究交通荷载作用下不同防护措施对于地下排水管道的防护效果，建立了道路结构—软土路基—排水管道一体化三维有限元模型，采用有限元方法分析了土工格栅加筋和换填橡胶—砂混合土两种方式对埋地排水管道的保护效果，研究了不同土工格栅层数（无土工格栅、1层、2层）、土工格栅刚度（无土工格栅、300、600、900MPa）和不同橡胶含量（0、10%、20%、30%）对排水管道受力和变形的影响。结果表明：土工格栅加筋通过改善道路内荷载传递机制，显著降低排水管道在交通荷载作用下的应力与应变，其效果随层数与刚度增加而增强；橡胶—砂混合土回填通过优化应力与塑性应变分布显著提升管道防护性能，其中含胶量为20%的混合土在减小管道各部位应变方面效果最优。
Abstract:
To investigate the protective effects of different measures on underground drainage pipelines under traffic loading, an integrated three-dimensional finite element model comprising road structure, soft soil subgrade, and drainage pipeline was established. The finite element method was utilized to analyze the protective performance of two methods, namely geogrid reinforcement and rubber-sand mixed soil replacement, for buried drainage pipelines. Specifically, the impacts of varying numbers of geogrid layers (no geogrid, one layer, two layers), geogrid stiffness (no geogrid, 300, 600, 900 MPa), and rubber content in mixed soil (0, 10%, 20%, 30%) on the stress and deformation of the pipelines were systematically investigated. The results indicate that geogrid reinforcement significantly reduces the stress and strain in drainage pipelines under traffic loading by improving the load transfer mechanisms in the pavement structure, and the protective effect is enhanced with the increase geogrid layers and their stiffness increase. Backfilling with rubber-sand mixed soil improves pipeline protection performance by optimizing the distribution of stress and plastic strain, and the mixture with 20% rubber content achieves the optimal effect in reducing strain at all positions of the pipeline.

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备注/Memo

备注/Memo:
收稿日期：2025-10-20
基金项目：国家自然科学基金项目（52078285）
作者简介：付冬平（1977-），男，高级工程师，从事岩土工程研究。E-mail: 47160390@qq.com
更新日期/Last Update: 2026-09-20