Abstract：
It is common to have the problems of voids behind tunnel lining and inadequate lining thickness during
tunnel construction and operation, and there are some hidden dangers in safety. Analysis and summarization were conducted in terms of tunnel excavation, primary support, construction of waterproof board, formwork installation,concrete pouring and curing quality, with the results showing that the factors affecting voids behind secondary lining are related to various links of tunnel construction and strict management and control should be carried out in each link; it has significant effect to prevent tunnel lining void and inadequate thickness to grout with formwork, conduct third-party test and improve construction technology of lining concrete and develop new material and equipment.
ZHAO Yangchuan LI Yalin WEI Min DUAN Jucai
.Discussion on Causes of and Preventive Measures against Tunnel Lining Voids and Inadequate Thickness[J] MODERN TUNNELLING TECHNOLOGY, 2019,V56(2): 40-43
2019, Vol. 56 