某病害地基的原因分析与加固方法应用研究
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摘要
本文通过对某工程病害地基致害原因的详细分析,揭示了引发病害地基的常见原因,提出了树根桩加扩展式托换基础的加固、纠偏(倾斜)方法,在一定技术条件下,对软弱土病害地基和湿陷性黄土及其它特殊性土地基的加固治理效果十分显著,而且通过加固施工过程的有效控制,可降低或避免加固施工过程中的附加沉降和结构次生裂变。该方法对其它类似建筑物的不均匀沉降和倾斜的加固治理具有借鉴意义。
Based on the cause analysis of a certain subsoil defect, the common fault initiating to subsoil defects is revealed. The reinforcement and rectification method of root-pile combined with underpinning spread foundation was proposed. The reinforcement effect is remarkable in the soft soil layer, collapsible loess and other special soil on defect. Subsequent settlement and secondary structure deflection will be minimized and avoided by effective control in the reinforcing process. The method could be referred by the similar building uneven settlement remedial project and building inclination rectification works.
Based on the cause analysis of a certain subsoil defect, the common fault initiating to subsoil defects is revealed. The reinforcement and rectification method of root-pile combined with underpinning spread foundation was proposed. The reinforcement effect is remarkable in the soft soil layer, collapsible loess and other special soil on defect. Subsequent settlement and secondary structure deflection will be minimized and avoided by effective control in the reinforcing process. The method could be referred by the similar building uneven settlement remedial project and building inclination rectification works.
引文
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[2] 中华人民共和国行业标准.建筑物纠偏技术规程(JGJ 270-2012)[S].北京:中国建筑工业出版社,2012.The Professional Standards of the People’s Republic of China,Technical specification for incline-rectifying of building(JGJ 270-2012)[S].Beijing:China Architecture & Building Press,2012.(in Chinese)
[3] 化建新等.工程地质手册(第五板)[M].北京:中国建筑工业出版社,2018.Hua Jianxin et al.Geolcgical engineering handbook (Fifth Edition)[M].Beijing:China Architecture & Building Press,2018.(in Chinese)
[4] 林宗元等.岩土工程治理手册[M].北京:中国建筑工业出版社,1993.Lin Zongyuan et al.Manual of geotechnical engineering governance[M].Beijing:China Architecture & Building Press,1993.(in Chinese)
[5] 曾国熙等.地基处理手册[M].北京:中国建筑工业出版社,1988.Zeng Guoxi et al.Manual of foundation treatment[M].Beijing:China Architecture & Building Press,1988.(in Chinese)
[6] 林在贯等.岩土工程手册[M].北京:中国建筑工业出版社,1995.Lin Zaiguan et al.Geotechnical engineering manual[M].Beijing:China Architecture & Building Press,1995.(in Chinese)
[7] 唐业清等.简明地基基础设计施工手册[M].北京:中国建筑工业出版社,2005.Tang Yeqing et al.Concise handbook for design and construction of foundation[M].Beijing:China Architecture & Building Press,2005.(in Chinese)
[8] 徐至钧等.新编建筑地基处理工程手册[M].北京:中国建筑工业出版社,2005.Xu Zhijun et al.New handbook of building foundation treatment engineering[M].Beijing:China Architecture & Building Press,2005.(in Chinese)
[9] 曹正康,钱玉林.水泥加固上海软土工程地质的室内试验成果[A].第三届全国地基处理学术讨论会论文集[C].杭州:浙江大学出版社,1992.Cao Zhengkang,Qian Yulin.Laboratory test results of engineering geology of soft soil reinforced by cement in Shanghai[A].Proceedings of the third national symposium on foundation treatment[C].Hangzhou:Zhejiang University Press,1992.(in Chinese)
[10] 中华人民共和国行业标准.建筑地基处理技术规范(JGJ 79-2012)[S].北京:中国建筑工业出版社,2012.The Professional Standards of the People’s Republic of China.Technical code for ground treatment of buildings(JGJ 79-2012)[S].Beijing:China Architecture & Building Press,2012.(in Chinese)
[11] 陈仲颐,叶书麟等.基础工程学[M].北京:中国建筑工业出版社,1996.Chen Zhongyi,Ye Shulin et al.Foundation engineering[M].Beijing:China Architecture & Building Press,1996.(in Chinese)
[12] 龚晓南.复合地基理论及工程应用[M].北京:中国建筑工业出版社,2002.Gong Xiaonan.Composite foundation theory and engineering application[M].Beijing:China Architecture & Building Press,2002.(in Chinese)
[13] 叶书麟等.地基处理与托换技术[M].北京:中国建筑工业出版社,1994.Ye Shulin et al.Foundation treatment and underpinning technology[M].Beijing:China Architecture & Building Press,1994.(in Chinese)
[14] 孙琪,王珑,郑建忠等.某高层建筑物综合纠偏加固方法的应用[J].工程勘察,2017,45(8):8～12.Qi Sun,Wang Long,Zheng Jianzhong et al.Application of a comprehensive method to rectify and reinforce a high-rise building[J].Geotechnical Investigation & Surveying,2017,45(8):8～12.(in Chinese)
[15] 中华人民共和国行业标准.建筑桩基技术规范(JGJ 94-2008)[S].北京:中国建筑工业出版社,2008.The Professional Standards of the People’s Republic of China.Technical code for building pile foundation(JGJ 94-2008)[S].Beijing:China Architecture & Building Press,2008.(in Chinese)