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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

39卷

期数:

2022年05期

页码:

234-240

栏目:

基础工程

出版日期:

2022-09-30

文章信息/Info

Title:

Application Experiment of Construction Waste Recycled Lime Soil Compaction Pile

文章编号:

1673-2049(2022)05-0232-09

作者:

王海英¹,王喜川¹,张英治²,何 佳²

(1. 长安大学 工程机械学院,陕西 西安 710064; 2. 陕西交通控股集团有限公司,陕西 西安 710036)

Author(s):

WANG Hai-ying¹, WANG Xi-chuan¹, ZHANG Ying-zhi², He Jia²

(1. School of Construction Machinery, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Shaanxi Transportation Holding Group Co., Ltd., Xi'an 710036, Shaanxi, China)

关键词:

建筑垃圾再生材料;  湿陷性黄土地基;  挤密桩;  成桩试验;  承载力

Keywords:

construction waste recycled material;  collapsible loess ground;  compaction pile;  pile experiment;  bearing capacity

分类号:

TU444

DOI:

10.19815/j.jace.2022.04093

文献标志码:

A

摘要:

为了掌握建筑垃圾再生材料在灰土挤密桩处理湿陷性黄土地基中的应用性能,首先通过材料力学性能试验确定了粒径为0～30 mm、建筑垃圾与灰土比例为72:28的建筑垃圾灰土挤密桩填料。然后完成了4组不同距径比的试桩应用试验,得到了不同距径比下的桩间土湿陷系数、桩间土挤密系数、桩间土静力触探曲线、复合地基荷载-沉降曲线等应用性能参数及特点。结果表明:桩间距越大,桩间土湿陷性系数越小; 距径比越小,桩间土挤密系数越大,桩间土的比贯入阻力越大; 在试验路段采用距径比2.25的建筑垃圾灰土挤密桩方案时,桩身容许承载力为175 kPa,复合地基承载力特征值为260 kPa,挤密效果良好; 成桩7 d浸水试验后复合地基承载力和桩身承载力平均下降14.3%,但仍满足桩设计要求; 研究结果验证了建筑垃圾再生材料灰土挤密桩处理湿陷性黄土地基的可行性,为工程应用提供性能参数参考,可进一步扩大建筑垃圾的使用范围。

Abstract:

In order to master the application performance of construction waste recycled materials in the treatment of collapsible loess foundation with lime soil compaction piles, through the material mechanical performance test, the filling material of the lime soil compaction pile with the particle size of 0-30 mm and the ratio of construction waste to lime soil of 72:28 was determined firstly. Then, four groups of application tests of test piles with different distance to diameter ratios were completed, and the application performance parameters and characteristics such as the collapsibility coefficient of soil between piles, the compaction coefficient of soil between piles, the static penetration test curve of soil between piles, and the load-settlement curve of composite foundation under different distance to diameter ratios were obtained. The results show that the larger the pile spacing, the smaller the soil collapsibility coefficient between the piles. The smaller the distance to diameter ratio, the larger the soil compaction coefficient between the piles, and the greater the specific penetration resistance of the soil between the piles. When the construction waste lime soil compaction pile scheme with a distance to diameter ratio of 2.25 is adopted in the test section, the allowable bearing capacity of the pile body is 175 kpa, and the characteristic value of the bearing capacity of composite foundation is 260 kpa, and the compaction effect is good. After the 7 d immersion test of the pile, the bearing capacity of the composite foundation and the bearing capacity of the pile body decreased by 14.3% on average, which still met the design requirements of the pile. The research results verify the feasibility of treating collapsible loess foundation with lime soil compaction pile, which can provide performance parameter reference for engineering application and further expand the use scope of construction waste.

参考文献/References:

[1] 李本挺,白雁飞,张豫川,等.黄土填方地基灰土挤密桩处理效果研究[J].建筑结构,2021,51(增1):2102-2107.
LI Ben-ting,BAI Yan-fei,ZHANG Yu-chuan,et al.Study on Treatment Effect of Lime Soil Compaction Pile in Loess Fill Foundation[J].Building Structure,2021,51(S1):2102-2107.
[2]强文伟.灰土挤密桩在湿陷性黄土路基处理中的应用[J].科技传播,2011,3(4):200,197.
QIANG Wen-wei.Application of Lime-soil Compaction Pile in the Treatment of Collapsible Loess Roadbed[J].Public Communication of Science & Technology,2011,3(4):200,197.
[3]张瑞光.湿陷性黄土地区灰土挤密桩处理涵洞地基效果研究[J].山西建筑,2016,42(34):72-73.
ZHANG Rui-guang.On Treatment Effect of Culvert Foundation with Lime-soil Compaction Pile in Collapsible Loess Areas[J].Shanxi Architecture,2016,42(34):72-73.
[4]李育强.灰土挤密桩在湿陷性黄土地区公路工程软基处理中的应用[J].河南科技,2018(10):118-119.
LI Yu-qiang.Application of Lime Soil Compaction Pile in Soft Foundation Treatment of Highway Engineering in Collapsible Loess Area[J].Henan Science and Technology,2018(10):118-119.
[5]SILVA R V,DE BRITO J,DHIR R K.Properties and Composition of Recycled Aggregates from Construction and Demolition Waste Suitable for Concrete Production[J].Construction and Building Materials,2014,65:201-217.
[6]马士宾,牛宗岳,刘月钊,等.建筑垃圾再生骨料性能强化研究进展[J/OL].建筑科学与工程学报:1-13[2022-08-31].http://kns.cnki.net/kcms/detail/61.1442.tu.20211130.0902.004.html.
MA Shi-bin,NIU Zong-yue,LIU Yue-zhao, et al. Research Progress on Performance Enhancement of Recycled Aggregates from Construction Waste[J/OL].Journal of Architecture and Civil Engineering:1-13[2022-08-31].http://kns.cnki.net/kcms/detail/61.1442.tu.20211130.0902.004.html.
[7]王莲伟,魏志清.西安市建筑垃圾现状分析及再利用措施[J].建筑科学与工程学报,2007,24(3):91-94.
WANG Lian-wei,WEI Zhi-qing.Present Condition Analysis and Reutilization Measures on Construction Waste of Xi'an[J].Journal of Architecture and Civil Engineering,2007,24(3):91-94.
[8]SAPUAY S E.Construction Waste-potentials and Constraints[J].Procedia Environmental Sciences,2016,35:714-722.
[9]SHAHIDAN S,AZMI M A M,KUPUSAMY K,et al.Utilizing Construction and Demolition(C&D)Waste as Recycled Aggregates(RA)in Concrete[J].Procedia Engineering,2017,174:1028-1035.
[10]JIMENEZ J R,AYUSO J,GALVIN A P,et al.Use of Mixed Recycled Aggregates with a Low Embodied Energy from Non-selected CDW in Unpaved Rural Roads[J].Construction and Building Materials,2012,34:34-43.
[11]HAIDER I,CETIN B,KAYA Z,et al.Evaluation of the Mechanical Performance of Recycled Concrete Aggregates Used in Highway Base Layers[C]//ASCE.Geo-congress 2014.Reston:ASCE,2014:3686-3694.
[12]KOLAY P K,AKENTUNA M.Characterization and Utilization of Recycled Concrete Aggregate from Illinois as a Construction Material[C]//ASCE.Geo-congress 2014.Reston:ASCE,2014:3561-3570.
[13]QASRAWI H,ASI I.Effect of Bitumen Grade on Hot Asphalt Mixes Properties Prepared Using Recycled Coarse Concrete Aggregate[J].Construction and Building Materials,2016,121:18-24.
[14]黄开正,肖 宏.建筑再生材料用作路基填料的CBR试验研究[J].建设科技,2012(9):70-71.
HUANG Kai-zheng,XIAO Hong.CBR Experimental Research on the Use of Construction Recycled Materials as Roadbed Filler[J].Construction Science and Technology,2012(9):70-71.
[15]肖 杰,吴超凡,湛哲宏,等.水泥稳定砖与混凝土再生集料基层的性能研究[J].中国公路学报,2017,30(2):25-32.
XIAO Jie,WU Chao-fan,ZHAN Zhe-hong,et al.Research on Performances of Cement Stabilized Brick and Concrete Recycled Aggregate Base[J].China Journal of Highway and Transport,2017,30(2):25-32.
[16]周新锋,徐希娟,李晓娟.水泥稳定建筑垃圾再生材料用于道路基层的性能研究[J].筑路机械与施工机械化,2016,33(8):48-51.
ZHOU Xin-feng,XU Xi-juan,LI Xiao-juan.Research on Performance of Cement Stabilized Aggregate Base Mixed with Recycled Construction Waste[J].Road Machinery & Construction Mechanization,2016,33(8):48-51.
[17]HERRADOR R,PEREZ P,GARACH L,et al.Use of Recycled Construction and Demolition Waste Aggregate for Road Course Surfacing[J].Journal of Transportation Engineering,2012,138(2):182-190.
[18]DEL REY I,AYUSO J,BARBUDO A,et al.Feasibility Study of Cement-treated 0-8 mm Recycled Aggregates from Construction and Demolition Waste as Road Base Layer[J].Road Materials and Pavement Design,2016,17(3):678-692.
[19]LU W S,YUAN H P,LI J R,et al.An Empirical Investigation of Construction and Demolition Waste Generation Rates in Shenzhen City,South China[J].Waste Management,2011,31(4):680-687.
[20]朱景汕,王 旭,蒋代军,等.湿陷性黄土地基侧向防渗结构模型试验研究[J].工程地质学报,2017,25(2):330-335.
ZHU Jing-shan,WANG Xu,JIANG Dai-jun,et al.Model Experimental Research on Structure of Lateral Seepage Control in Collapsible Loess Foundation[J].Journal of Engineering Geology,2017,25(2):330-335.
[21]陶航宇,陈 萍,龚亦凡,等.基于砖含量的再生砖混粗骨料分类研究[J].硅酸盐通报,2021,40(3):957-963.
TAO Hang-yu,CHEN Ping,GONG Yi-fan,et al.Classification of Recycled Brick and Concrete Coarse Aggregate Based on Brick Content[J].Bulletin of the Chinese Ceramic Society,2021,40(3):957-963.
[22]杨 帆,董晓强,苗晨曦,等.废旧混凝土再生细骨料抗剪强度的水敏性研究[J].混凝土,2022(3):57-59,68.
YANG Fan,DONG Xiao-qiang,MIAO Chen-xi,et al.Study on Water Sensitivity of Shear Strength of Recycled Fine Aggregate of Waste Concrete[J].Concrete,2022(3):57-59,68.
[23]LI T,XIAO J Z,ZHU C M,et al.Experimental Study on Mechanical Behaviors of Concrete with Large-size Recycled Coarse Aggregate[J].Construction and Building Materials,2016,120:321-328.
[24]李清海,王菲菲,周胜男,等.成型压力对再生细集料水泥基材料性能影响的研究[J].混凝土,2013(11):22-24.
LI Qing-hai,WANG Fei-fei,ZHOU Sheng-nan,et al.Investigation on Behavior of Molding Pressure to Recycled Fine Aggregate Cement-base Material[J].Concrete,2013(11):22-24.
[25]杨晓华,张建伟,张莎莎,等.黄土地区高速公路地基处理技术研究进展[J].长安大学学报(自然科学版),2022,42(1):16-32.
YANG Xiao-hua,ZHANG Jian-wei,ZHANG Sha-sha,et al.Research Progress on Foundation Treatment Techniques of Expressway in Loess Area[J].Journal of Chang'an University(Natural Science Edition),2022,42(1):16-32.
[26]朱彦鹏,杜晓启,杨校辉,等.挤密桩处理大厚度自重湿陷性黄土地区综合管廊地基及其工后浸水试验研究[J].岩土力学,2019,40(8):2914-2924.
ZHU Yan-peng,DU Xiao-qi,YANG Xiao-hui,et al.Research on Utility Tunnel Foundation Treated by Compaction Piles and Post-work Immersion Test in Self-weight Collapsible Loess Area with Large Thickness[J].Rock and Soil Mechanics,2019,40(8):2914-2924.
[27]荣 露,熊治文,孙润东,等.湿陷性黄土地区公路涵洞地基变形特性研究[J].长江科学院院报,2017,34(6):138-142,154.
RONG Lu,XIONG Zhi-wen,SUN Run-dong,et al.Deformation Characteristics of Highway Culvert Foundation in Collapsible Loess Area Treated by Different Methods[J].Journal of Yangtze River Scientific Research Institute,2017,34(6):138-142,154.

相似文献/References:

[1]郑海华,吴 谦,李翔宇,等.多雨地区建筑垃圾路基填料长期变形特性研究[J].建筑科学与工程学报,2024,41(05):183.[doi:10.19815/j.jace.2022.11063]
　ZHENG Haihua,WU Qian,LI Xiangyu,et al.Study on long-term deformation characteristics of construction waste subgrade filler in rainy area[J].Journal of Architecture and Civil Engineering,2024,41(05):183.[doi:10.19815/j.jace.2022.11063]

备注/Memo

备注/Memo:

收稿日期:2022-04-27
基金项目:陕西省交通运输厅科技项目(21-04X)
作者简介:王海英(1971-),女,河北故城人,副教授,工学博士,博士后,E-mail:whying@chd.edu.cn。

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更新日期/Last Update: 2022-09-30