摘要
传统的隧道仰拱衬砌,施工采用现场人工绑扎钢筋和模板现浇混凝土的方式进行,受到模板缺乏设计制作规范标准、现场施工养护环境较差等因素的制约,仰拱衬砌结构施工多存在结构不密实、强度与外观质量差等问题;且传统施工工序繁多,对熟练工人要求高,往往会造成施工速度慢、结构无法及时承载、材料和人工成本高昂等问题。本次调查的主要目的是通过预制仰拱提高隧道施工进度,提早闭环确保二衬结构安全稳定,为后续施工提供便利条件。
The traditional tunnel inverted arch lining is carried out by the method of manually binding reinforcement and cast-in-situ concrete on site.Due to the lack of standard for design and fabrication of formwork,the construction and maintenance environment on site,the construction of inverted arch lining structure has many problems such as non-dense structure,poor strength and appearance quality.In addition,the traditional construction process is numerous,and the requirement for skilled workers is high,which often leads to slow construction speed,failure to carry the structure timely,and high cost of materials and labor.The main purpose of this survey is to improve the construction progress of the tunnel through prefabricated inverted arch,ensure the safety and stability of the secondary lining structure in advance and provide the follow-up construction.Convenience.
作者
刘君强
LIU Junqiang(China Highway Engineering Capital Consulting Group Co.,Ltd.,Beijing,China 100078)
出处
《工程建设（维泽科技）》
2019年第4期132-136,共5页
Engineering Construction
关键词
预制仰拱
隧道
危害
措施
Precast inverted arch
Tunnel
Harm
Measures
