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隧道建设(中英文) ›› 2018, Vol. 38 ›› Issue (11): 1878-1887.DOI: 10.3973/j.issn.2096-4498.2018.11.017
JIANG Yajun1, *, YANG Qixin1, LIU Dongmin2, SHENG Caoying3, ZHAO Jumei1
蒋雅君1, *, 杨其新1, 刘东民2, 盛草樱3, 赵菊梅1
摘要:
The application of a sprayapplied waterproof membrane in the case of the liquefied natural gas (LNG) unloading line tunnel constructed via the New Austrian Tunneling Method (NATM) is described. The waterproof standards for the LNG unloading line tunnel are stricter than those for regular tunnels based on the consideration of safety and environmental protection during operation. A doublelayer waterproofing system including radial grouting, systematic drainage facilities, an EVA sheet membrane, a sprayapplied acrylate waterproof membrane and other waterproofing and drainage facilities are designed based upon comparisons among several possible waterproofing solutions. The application results and consequential observations prove that the outcome of this waterproof system is satisfactory. The important issues for the successful application of the sprayed membrane in this case are summarized, including a reasonable design for the waterproofing system, performance of the sprayed membrane, proper training for the operators, adequate preparations, careful execution, and complete quality control and acceptance. The successful application of the sprayapplied acrylate waterproof membrane combined with other waterproofing and drainage facilities in this case has been demonstrated according to the inspection results and provides alternative solutions to improve the waterproof quality of similar tunnels under high standards.
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