2023年第06期总第300期福建建筑FujianArchitecture&ConstructionNo06·2023Vol·300软土场地基桩大吨位堆载抗压静载试验安全事故分析及加固措施优化张八芳(健研检测集团有限公司福建厦门361004)摘要:软土场地的基桩大吨位堆载抗压静载试验常出现荷载倒塌安全事故。为此,结合工程实例,给出了软土场地的地基加固处理和堆载方案,以及软弱地基下卧层换填加固处理后的地基承载力验算步骤,并对试验过程中堆载配重倒塌的安全事故进行了分析和探讨。为避免类似事故再次发生,现场对静载试验软土场地的地基加固处理和安全防护措施进行了改进优化,分析得出地下水位上升将导致地基承载力降低,在软弱地基场地中大吨位堆载抗压静载试验的偏心受压,将存在严重的安全隐患。关键词:软土场地;大吨位;抗压静载;安全事故;加固处理中图分类号:TU47文献标识码:A文章编号:1004-6135(2023)06-0104-04AnalysisofSafetyAccidentsandOptimizationofReinforcementMeasuresforBigTonnageHeapCompressionStaticLoadTestofFoundationPileinSoftSoilSiteZHANGBafang(JianYanTestingGroupCo.Ltd.,Xiamen361004)Abstract:Thesafetyaccidentofstaticloadblockcollapseoftenoccursinbigtonnageheapcompressionstaticloadtestoffoundationpileinsoftsoilsite.Therefore,combinedwithengineeringexamples,thefoundationreinforcementtreatmentandheapingloadblockschemeofsoftsoilsitearegiven,andthecalculationstepsoffoundationbearingcapacityafterreinforcementoftheunderlyinglayerofsoftfoundationaregiveninthispaper.Thesafetyaccidentofstaticloadblockcollapseduringthetestareanalyzedanddiscussed.Inordertoavoidthere-currenceofsimilaraccidents,thefoundationreinforcementtreatmentschemeandsafetyprotectionmeasuresofsoftsoilsiteinstaticloadtestwereimprovedandoptimizedonsite.Itisanalyzedthattheriseofgroundwaterlevelwillleadtothedecreaseoffoundationbearingca-pacity,andtherewillbeserioussafetyhazardsintheeccentriccompressionofbigtonnageheapcompressionstaticloadtestinsoftfounda-tionsites.Keywords:Softsoilsite;Bigtonnage;Compressivestaticloadtest;Safetyaccident;Reinforcementtreatment作者简介:张八芳(1981-),男,高级工程师。E-mail:5299717@qq.com收稿日期:2022-12-310引言软土一般由淤泥、淤泥质粘土构成上表软土层,其特点是高含水量、高...
