期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：5
页码：1-8
DOI：10.1088/1755-1315/304/5/052012
出版社：IOP Publishing
摘要：Sound quality and conditions are essential for the final lining of a tunnel with composite lining system in soft ground in terms of safety and durability. To build high quality tunnels, defects in lining concrete, such as cracking, should be under control in terms of type and pattern, as well as magnitude. In practice, the reasons for tunnel lining concrete cracking are always unique and various among cases or even different sections of a tunnel. For the quality control of a tunnel, which is preliminarily designed with the analogical method, design and construction revising is often required during the tunnel construction, since the design and construction of a modern tunnel are considered as a dynamic process. Considering how the experiences and information from the earlier built sections can be effectively implemented or checked in the following building rounds of a tunnel project, this contribution presents a case of tunnel construction quality control with an integrated approach, with special reference to the final lining concrete cracking control. In this case, the lining concrete cracks in several sections seem beyond the planned allowable values in the early construction stage, in terms of types and size. With the information on the features of the cracks in the lining, as well as the behaviours of both the lining and tunnel surrounding rocks, the reasons for the cracks are analyzed, and the results are applied in an integrated mode to the cracking control in the subsequent construction.
