掺加废弃羽拍线的轻质混合土性能研究  

Performance Research of Lightweight Mixed Soil Mixed with Waste Feather Line

作　　者：俞凯木 江浩川 YU Kaimu;JIANG Haochuan(Zhongyifeng Construction Group Co.,Ltd.,Suzhou,Jiangsu 215131,China;China Northeast Architectural Design&Research Institute Co.,Ltd.,Xiamen,Fujian 361012,China)

机构地区：[1]中亿丰建设集团股份有限公司,江苏苏州215131 [2]中国建筑东北设计研究院有限公司,福建厦门361012

出　　处：《施工技术(中英文)》2025年第2期144-147,共4页Construction Technology

基　　金：国家自然科学基金青年资助项目:真三轴条件下裂隙花岗岩断裂过程区动态演化与破坏预测模型(52109124)。

摘　　要：为减少资源浪费和环境污染,改善填土工程性质,将废弃羽拍线掺加至轻质混合土,并利用单轴压缩试验评估含废弃羽拍线的轻质混合土强度。结果表明,随着水泥含量增大或含水量及废弃羽拍线含量减小,轻质混合土容重增大。当废弃羽拍线含量增大时,轻质混合土单轴压缩强度表现为先增大后波动规律,废弃羽拍线最佳掺量为1.0%~2.0%。当水泥含量增大或含水量减小时,轻质混合土单轴压缩强度增大。轻质混合土结构变形在较大程度上受到掺加羽拍线的约束作用。由于羽拍线具有突出的抗拉能力及与轻质混合土交界面突出的摩擦阻力,轻质混合土试样抗剪能力得到提升。本试验研究为废弃渔网、废弃轮胎、废旧水泥袋与编织袋等典型废弃材料的再生利用提供了新思路。In order to reduce the waste of resources and environmental pollution and improve the engineering properties of filling soil,the waste feather line was added to the lightweight mixed soil,and the strength of the lightweight mixed soil containing the waste feather line was evaluated by uniaxial compression test.The results show that with the increase of cement content or the decrease of water content and waste feather line content,the bulk density of lightweight mixed soil increases.When the content of waste feather line increases,the uniaxial compressive strength of lightweight mixed soil increases first and then fluctuates,the optimum dosage of waste feather line is 10%~20%.When the cement content increases or the water content decreases,the uniaxial compressive strength of lightweight mixed soil increases.The deformation of lightweight mixed soil structure is constrained by the addition of feather line to a large extent.Due to the outstanding tensile strength of the feather line and the outstanding friction resistance at the interface between the feather line and the lightweight mixed soil,the shear resistance of the lightweight mixed soil sample is improved.This experimental study provides a new idea for the recycling of typical waste materials such as waste fishing nets,waste tires,waste cement bags and woven bags.

关 键 词：轻质混合土 羽拍线 试验 容重 单轴压缩强度 

分 类 号：TU452[建筑科学—岩土工程]