炼焦炉配煤罐深厚钢渣垫层地基处理  

GROUND TREATMENT WITH DEEP AND THICK STEEL SLAG CUSHION FOR COAL CONTAINER OF COKE OVEN

作　　者：刘文白[1] 田丰 王梦瑜[1] 

机构地区：[1]上海海事大学海洋环境与工程学院,上海200135 [2]包头市诚信达工程监理咨询公司,内蒙古包头014010

出　　处：《工业建筑》2010年第S1期614-617,共4页Industrial Construction

基　　金：上海市教育委员会科研项目资助(07ZZ99);重点学科建设项目(2009445878);浙江省科技计划面上项目(2008C23023)

摘　　要：对包钢9号、10号焦炉工程配煤罐的钢渣垫层地基进行了工程设计与施工研究。利用钢渣废料进行大面积深厚地基处理,基坑面积170.5 m×82.5 m,垫层厚度9.0 m,配煤罐基础的基底压力达480 kPa。分析钢渣的游离CaO的影响,及其水化物的胶结作用;陈放5年以上的钢渣其pH值为6,对钢筋腐蚀影响较小。基坑采用分层分段开挖,施工分Ⅰ/Ⅱ层回填,经检测符合设计要求。平板静载荷试验钢渣地基承载力特征值fak=700 kPa,变形模量E0=60 MPa。试验结果符合设计要求。Replacement method with steel slag is used to deal with the foundation of No.9 and No.10 coal containers of coke oven in BTSTEEL.The pit is 170.5 m by 82.5 m in area and 9.0 m in thickness and the fundamental pressure is up to 480 kPa,being excavated stage-by-stage.Backfilled material is crusted and graded steel slag.It is analysed influence of steel slag dissociation CaO,and its hydrate cementation,under the heavy load,for a 5-year storage,steel slag pH is 6,which has less effect on steel bar corrosion.The backfilled cushion is divided in two layers: down-layer and up-layer.The result in the test shows that,allowable bearing capacity of foundation soil f_(ak) is 700 kPa and the modulus of compressibility E_0 is 60 MPa,which can meet the design request.So the results of tests satisfy the design requirements.

关 键 词：钢渣回填 深厚垫层 地基处理 承载板试验 

分 类 号：TU476[建筑科学—结构工程]