喷射混凝土在气膜薄壳储煤仓中的应用  

Application of Shotcreting in Shell Storage Bunker Using Inflated Forms

作　　者：王育德[1] 张珍雷 韩显涛 WANG Yu-de;ZHANG Zhen-lei;HAN Xian-tao(College of Civil Engineering, Hebei University of Engineering, Handan 056038, China;China Coal Building and Installation Group Technology R&D Center, Handan 057150,China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]中煤建安集团技术研发中心,河北邯郸057150

出　　处：《煤炭工程》2019年第4期42-45,共4页Coal Engineering

摘　　要：以江苏徐州大屯热电厂气膜薄壳储煤仓工程为例,对喷混凝土在气膜薄壳储煤仓中的施工工艺及喷射时注意事项进行了回顾,并对主体结构沿高度和结构层厚度方向不同部位选取了45个混凝土试块进行抗压强度试验。试验结果表明,设计强度等级为C30的喷射混凝土养护龄期满后抗压强度最大值为56. 4MPa,最小值为30. 7MPa,平均值为40. 5MPa,可满足规范设计要求。说明了气膜薄壳储煤仓建设中应用喷射混凝土法可在保证质量的前提下能取得显著的经济效益,减少煤炭等散状矿物料存储对环境的污染,对今后类似工程项目具有一定借鉴意义。At present,shotcreting is widely used in engineering. However there are few application in shell storage bunker using inflated forms. Combined with the example of shell storage bunker using inflated forms in Xuzhou Datun thermal power plant in Jiangsu province,the material construction process and precautions for injection of sprayed concrete are introduced in detail. In addition,45 concrete test blocks were selected along the height and thickness of the structural layer of the main structure. Practice has proved that the maximum compressive strength is 56. 4 MPa,the minimum value is 30. 7 MPa,and the average value is 40. 5 MPa,which meets the specification design requirements. It shows that the application of shotcreting in the construction can achieve significant economic benefits with ensured quality,and reduce the environmental pollution caused by the storage of bulk mineral materials such as coal.

关 键 词：气膜薄壳储煤仓 喷射混凝土 施工工艺 抗压强度 

分 类 号：TD54[矿业工程—矿山机电]