Technical exploration for carbon reduction in building pile foundation engineering
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摘要: 在“双碳”目标背景下,桩基工程的“降碳”发展势在必行。根据桩基工程碳排放来源,结合桩基工程特点,从勘察、设计、桩型、施工、运维等角度出发,提出桩基工程降碳的技术路径与方法,包括:勘察逼真,充分发挥天然地基承载力,在满足规范或设计对变形要求的条件下实现不用桩;设计优化,做到设计概念正确,方案合理;通过桩型创新使桩土深度融合,强弱互补形成合力,充分发挥桩土材料性能提高单桩承载力,做到少用桩,实现节材降碳;施工降碳,通过研发更加高效节能、绿色环保的桩工设备,利用数字化、智能化管理手段提升工程质量,合理利用资源,提质增效;旧桩利用,通过正确评估使旧桩重获新生,减少新桩数量;开发桩基工程价值潜能,做到一桩两用,循环利用资源。Abstract: Under the implementation of China’s carbon peaking and carbon neutrality goals, the low-carbon development of pile foundation engineering has become imperative. Based on analyzing the sources of carbon emissions in pile foundation engineering and considering its technical characteristics, this paper proposes carbon reduction technical pathways and methods from perspectives of investigation, design, pile type selection, construction, and operation-maintenance. Key approaches include: Accurate investigation to fully utilize natural foundation bearing capacity, thereby avoiding pile usage while ensuring compliance with deformation requirements in codes or designs; Design optimization through correct conceptual design and rational schemes; Pile type innovation via deep soil-pile interaction to achieve complementary strengths and reduce pile quantity; Performance enhancement by maximizing material properties to improve single-pile bearing capacity; Energy conservation by developing high-efficiency pile engineering equipment and eco-friendly practices; Quality-efficiency synergy through digitalization and intelligent technologies for enhancing engineering quality and optimizing resource utilization; Reutilization of existing piles through proper assessment to reactivate their capacity and minimize the number of new piles required; Unlocking the value potential of pile foundation engineering through dual-functional pile systems, thereby optimizing resource utilization.
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Key words:
- pile foundation engineering /
- carbon reduction /
- investigation /
- design /
- pile type /
- construction
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表 1 济南万科住宅项目闪长岩残积土参数对比[6]
Table 1. Comparison of diorite residual soil parameters for Jinan Vanke residential project
数据来源 承载力特征值/kPa 压缩模量/ MPa 原勘察室内试验 220 8.6 深层载荷板试验 500 28 旁压试验 432~529 20~27 表 2 不同工艺基桩单位承载力碳排放量对比
Table 2. Comparison of carbon emissions per unit bearing capacity for different piling technique
kg/kN 施工工艺 高层 小高层 多层 扩径扩底灌注桩(圆桩) 0.774 0.757 0.748 扩径扩底灌注桩(方桩) 0.675 0.678 0.672 预应力混凝土管桩 1.489 1.389 1.441 长螺旋钻孔压灌桩 1.170 1.402 1.545 旋挖钻孔桩 1.283 1.293 1.767 冲击钻孔灌注桩 1.323 1.335 1.827 反循环钻孔灌注桩 1.283 1.293 1.769 -
[1] The United Nations Environment Programme. Global status report for buildings and construction[R]. 2024. [2] 中国建筑节能协会. 中国建筑能耗与碳排放研究报告(2022年)[R]. 重庆, 2022. (China Association of Building Energy Efficiency. China building energy use and carbon mmissions research report (2022)[R]. Chongqing, 2022. (in Chinese))China Association of Building Energy Efficiency. China building energy use and carbon mmissions research report (2022)[R]. Chongqing, 2022. (in Chinese)) [3] 联合国政府间气候变化专委会. 2006年IPCC国家温室气体清单指南[M]. 日本: 日本全球战略研究所, 2006: 1-10. ((IPCC. 2006 IPCC guidelines for national greenhouse gas inventories[M]. Japan: Global Strategy Institute, 2006: 1-10. (in Chinese)(IPCC. 2006 IPCC guidelines for national greenhouse gas inventories[M]. Japan: Global Strategy Institute, 2006: 1-10. (in Chinese) [4] 于运星. 面向建筑设计的碳排放因子标准化量算方法及数据库研究[D]. 西安: 西安建筑科技大学, 2023. (YU Y X. Research on standardized calculation method and database of carbon emission factor for architectural design[D]. Xi’an: Xi’an University of Architecture and Technology, 2023. (in Chinese)YU Y X. Research on standardized calculation method and database of carbon emission factor for architectural design[D]. Xi’an: Xi’an University of Architecture and Technology, 2023. (in Chinese) [5] 顾宝和. 岩土工程典型案例述评[M]. 北京: 中国建筑工业出版社, 2015. (GU B H. Reviews and case studies of representative geotechnical engineering projects[M]. Beijing: China Architecture & Building Press, 2015. (in Chinese)GU B H. Reviews and case studies of representative geotechnical engineering projects[M]. Beijing: China Architecture & Building Press, 2015. (in Chinese) [6] 国家质量技术监督局, 中华人民共和国建设部. 土工试验方法标准: GB/T 50123—1999[S]. 北京: 中国计划出版社, 1999. (State Administration of Quality and Technical Supervision, Ministry of Construction of the People’s Republic of China. Standard for soil test method: GB/T 50123—1999[S]. Beijing: China Planning Press, 1999. (in Chinese)State Administration of Quality and Technical Supervision, Ministry of Construction of the People’s Republic of China. Standard for soil test method: GB/T 50123—1999[S]. Beijing: China Planning Press, 1999. (in Chinese) [7] 吴浩彦, 丁 冰, 张长城. 乌鲁木齐地区某超高层建筑岩土工程勘察实录: “第八届全国岩土工程实录交流会”岩土工程实录集[C]. 北京: 中国建筑工业出版社, 2019: 252-258. (WU H Y, DING B, ZHANG C C. Geotechnical investigation record for a super high-rise building in Urumqi: Proceedings of the 8th national symposium on geotechnical engineering case records[C]. Beijing: China Architecture & Building Press, 2019: 252-258. (in Chinese)WU H Y, DING B, ZHANG C C. Geotechnical investigation record for a super high-rise building in Urumqi: Proceedings of the 8th national symposium on geotechnical engineering case records[C]. Beijing: China Architecture & Building Press, 2019: 252-258. (in Chinese) [8] 方云飞, 王 媛, 孙宏伟. 长沙北辰项目高层建筑软岩地基工程特性分析[J]. 工程勘察, 2015, 43(7): 11-17. (FANG Y F, WANG Y, SUN H W. Geotechnical analysis of weak rock ground for high-rise building of North Star Project in Changsha[J]. Geotechnical Investigation & Surveying, 2015, 43(7): 11-17. (in Chinese)FANG Y F, WANG Y, SUN H W. Geotechnical analysis of weak rock ground for high-rise building of North Star Project in Changsha[J]. Geotechnical Investigation & Surveying, 2015, 43(7): 11-17. (in Chinese) [9] 李 培, 周 笋, 齐五辉, 等. 首创丽泽金融商务区F02和F03地块地基基础设计[J]. 建筑结构, 2018, 48(20): 65-70. (LI P, ZHOU S, QI W H, et al. Foundation design of buildings in F02 and F03 plots of Shou Chuang Lize Financial Business District[J]. Building Structure, 2018, 48(20): 65-70. (in Chinese)LI P, ZHOU S, QI W H, et al. Foundation design of buildings in F02 and F03 plots of Shou Chuang Lize Financial Business District[J]. Building Structure, 2018, 48(20): 65-70. (in Chinese) [10] 王 涛, 高文生, 刘金砺. 桩基变刚度调平设计的实施方法研究[J]. 岩土工程学报, 2010, 32(4): 531-537. (WANG T, GAO W S, LIU J L. Study on implemention method for optimization design of pile foundation stiffness to reduce differential settlement[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(4): 531-537. (in Chinese)WANG T, GAO W S, LIU J L. Study on implemention method for optimization design of pile foundation stiffness to reduce differential settlement[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(4): 531-537. (in Chinese) [11] 汪大绥, 包联进, 姜文伟, 等. 上海中心大厦结构第三方独立审核[J]. 建筑结构, 2012, 42(5): 13-18. (WANG D S, BAO L J, JIANG W W, et al. Peer review in the structural design of Shanghai Center Tower[J]. Building Structure, 2012, 42(5): 13-18. (in Chinese)WANG D S, BAO L J, JIANG W W, et al. Peer review in the structural design of Shanghai Center Tower[J]. Building Structure, 2012, 42(5): 13-18. (in Chinese) [12] 孙宏伟, 常为华, 宫贞超, 等. 中国尊大厦桩筏协同作用计算与设计分析[J]. 建筑结构, 2014, 44(20): 109-114. (SUN H W, CHANG W H, GONG Z C, et al. Calculation and analysis of piled raft foundation interaction of China ZUN Tower[J]. Building Structure, 2014, 44(20): 109-114. (in Chinese)SUN H W, CHANG W H, GONG Z C, et al. Calculation and analysis of piled raft foundation interaction of China ZUN Tower[J]. Building Structure, 2014, 44(20): 109-114. (in Chinese) [13] 方云飞, 王 媛, 孙宏伟. 国瑞·西安国际金融中心超长灌注桩静载试验设计与数据分析[J]. 建筑结构, 2016, 46(17): 99-104. (FANG Y F, WANG Y, SUN H W. Static loading test design and data analysis on super-long bored pile of Glory·Xi’an International Financial Center[J]. Building Structure, 2016, 46(17): 99-104. (in Chinese)FANG Y F, WANG Y, SUN H W. Static loading test design and data analysis on super-long bored pile of Glory·Xi’an International Financial Center[J]. Building Structure, 2016, 46(17): 99-104. (in Chinese) [14] 方云飞, 王 媛, 孙宏伟, 等. 丽泽SOHO地基基础设计与验证[J]. 建筑结构, 2019, 49(18): 87-91,114. (FANG Y F, WANG Y, SUN H W, et al. Foundation design and verification of LEEZA SOHO[J]. Building Structure, 2019, 49(18): 87-91,114. (in Chinese)FANG Y F, WANG Y, SUN H W, et al. Foundation design and verification of LEEZA SOHO[J]. Building Structure, 2019, 49(18): 87-91,114. (in Chinese) [15] 束伟农, 朱忠义, 祁 跃, 等. 北京新机场航站楼结构设计研究[J]. 建筑结构, 2016, 46(17): 1-7. (SHU W N, ZHU Z Y, QI Y, et al. Design and research on terminal building of Beijing New Airport[J]. Building Structure, 2016, 46(17): 1-7. (in Chinese)SHU W N, ZHU Z Y, QI Y, et al. Design and research on terminal building of Beijing New Airport[J]. Building Structure, 2016, 46(17): 1-7. (in Chinese) [16] 刘献刚, 熊小林, 刘 斌, 等. 多段扩径混凝土灌注桩的施工方法: CN114960625A[P]. 2022-08-30. (LIU X G, XIONG X L, LIU B, et al. Construction method of multi-section expanding cast-in-place concrete pile: CN114960625A[P]. 2022-08-30. (in Chinese)LIU X G, XIONG X L, LIU B, et al. Construction method of multi-section expanding cast-in-place concrete pile: CN114960625A[P]. 2022-08-30. (in Chinese) [17] 中华人民共和国住房和城乡建设部. 建筑碳排放计算标准: GB/T 51366—2019[S]. 北京: 中国建筑工业出版社, 2019. (Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Standard for building carbon emission calculation: GB/T 51366—2019[S]. Beijing: China Architecture & Building Press, 2019. (in Chinese)Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Standard for building carbon emission calculation: GB/T 51366—2019[S]. Beijing: China Architecture & Building Press, 2019. (in Chinese) [18] 徐 建, 郭传新, 刘 双. 2019德国bauma展上的桩工机械[J]. 建筑机械, 2019(7): 9-13. (XU J, GUO C X, LIU S. Pile machinery at 2019 bauma exhibition in Germany[J]. Construction Machinery, 2019(7): 9-13. (in Chinese)XU J, GUO C X, LIU S. Pile machinery at 2019 bauma exhibition in Germany[J]. Construction Machinery, 2019(7): 9-13. (in Chinese) [19] 杜 斌, 刘祖德, 聂向珍. 城市中的旧桩基问题及处理方法探讨[C]//第二届全国岩土与工程学术大会论文集. 武汉: 中国岩石力学与工程学会, 2006: 29-35. (DU B, LIU Z D, NIE X Z. Dealing with old pile foundation in cities[C]//Proceedings of the Second National Symposium on Geotechnical and Engineering. Wuhan: Chinese Society of Rock Mechanics and Engineering, 2006: 29-35. (in Chinese)DU B, LIU Z D, NIE X Z. Dealing with old pile foundation in cities[C]//Proceedings of the Second National Symposium on Geotechnical and Engineering. Wuhan: Chinese Society of Rock Mechanics and Engineering, 2006: 29-35. (in Chinese) [20] 姚建平. 既有桩再利用及新旧桩混合使用条件下的静压新桩施工控制工艺研究[J]. 建筑施工, 2016, 38(4): 402-405. (YAO J P. Study on construction control technology for new static pressure piles under condition of recycled existing piles and new-old mixed piles[J]. Building Construction, 2016, 38(4): 402-405. (in Chinese)YAO J P. Study on construction control technology for new static pressure piles under condition of recycled existing piles and new-old mixed piles[J]. Building Construction, 2016, 38(4): 402-405. (in Chinese) -
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