2023年6月施工安装DOI:10.3969/j.issn.1001-2206.2023.03.010高厚比大于24的薄板状混凝土墙施工技术高凯中国石油工程建设有限公司,北京100120摘要:结合工程实际,针对高厚比大于24的薄板状混凝土墙现浇施工难题,在模板体系选择、模板对拉螺栓孔综合封堵、混凝土振捣、墙体对拉螺栓孔处理等方面采取了针对性的措施,取得了良好的效果。通过墙模板侧压力计算,选择合适的模板体系;采用对拉螺栓孔封堵技术,减少施工过程中的漏浆现象;选用小直径振捣棒和柔性帆布溜桶,解决狭窄空间振捣缺陷问题,保证墙体混凝土振捣质量;拆模后采用合理的墙体对拉螺栓孔处理技术,完善墙体表面质量;通过对工人的专项培训,确保施工过程的质量。关键词:高厚比;薄板状混凝土墙;模板体系;侧压力;对拉螺栓;封堵Constructiontechnologyofthinsheetconcretewallwithaheight-thicknessratioofmorethan24GAOKaiChinaPetroleumEngineering&ConstructionCorp,Beijing100120,ChinaAbstract:Accordingtotheengineeringpractice,forthecast-in-placeconstructionproblemofthethinsheetconcretewallwithaheight-thicknessratioofmorethan24,excellentimplementationeffectshavebeenachievedbyadoptingtargetedmeasuresintermsoftheformworksystemselection,comprehensivepluggingofformworksplitboltholes,concretevibrating,treatmentofsplitboltholesinwalls,andotheraspects.Theappropriateformworksystemisselectedbycalculatingthelateralpressureofwallformwork;thepluggingtechnologyforsplitboltholesisadoptedtoreducetheslurryleakageduringconstruction;vibratingrodswithasmalldiameterandflexiblecanvasslidebarrelsareusedtosolvetheproblemofvibratingdefectsinnarrowspaceandensurethequalityofwallconcretevibrating;reasonabletreatmenttechnologyofsplitboltholesinwallsisadoptedtoimprovewallsurfacequalityafterformworkremoval;thequalityofconstructionprocessisensuredthroughspecialtrainingforworkers.Keywords:height-thicknessratio;thinsheetconcretewall;formworksystem;lateralpressure;splitbolt;plugging1工程概况中国石油广东石化项目炼油区第一、第二循环水场工程共布置9座冷却塔框架及塔底水池,结构形式均为钢筋混凝土框架结构,单体轴线外形呈矩形。冷却塔框架单体轴线尺寸分别为68.2m×24.7m(1座)、51.4m×24.7m(8座)...