About the author:

Sinohydro Bureau 7 Co., Ltd., Chengdu, Sichuan 610213, China

Abstract:

Based on the engineering example of Qianhai Station of Shenzhen Urban Rail Transit, thispaper systematically analyzes the advantages and disadvantages of ALC wallboard by comparing thematerial properties of glass fiber reinforced cement wallboard, prefabricated concrete wallboard and ALCwallboard. Based on the adaptability analysis of ALC wallboard, the construction technology and key anddifficult points are deeply explored. The construction process is introduced in detail, and the fixationmethods, joint quality control methods, quality control standards and safeguard measures of wallboards atdifferent heights are clarified. The results show that ALC wallboard has significant advantages in fireprevention, sound insulation and construction efficiency, and its mechanical properties meet theconstruction requirements of subway stations. Although it faces construction challenges such as weakwaterproof and moisture⁃proof performance and high requirements for hoisting and splicing accuracy, itcan be adapted to the needs of ultra⁃high underground space projects by optimizing node structure andstrengthening pretreatment process. Through the field construction verification of Qianhai Station, theformed ALC wallboard construction technology system is reliable.