煤炭工程 ›› 2019, Vol. 51 ›› Issue (4): 42-45.doi: 10.11799/ce201904010

• 施工技术 • 上一篇    下一篇

喷射混凝土在气膜薄壳储煤仓中的应用

王育德1,张珍雷1,韩显涛2   

  1. 1. 河北工程大学
    2. 中煤建安集团技术研发中心
  • 收稿日期:2018-07-16 修回日期:2018-08-15 出版日期:2019-04-20 发布日期:2019-04-28
  • 通讯作者: 张珍雷 E-mail:18833027856@163.com

Application of Shotcrete in Shell Storage Bunker using Inflated Forms

  • Received:2018-07-16 Revised:2018-08-15 Online:2019-04-20 Published:2019-04-28

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。

关键词: 气膜薄壳储煤仓, 喷射混凝土, 施工工艺, 抗压强度

Abstract: At present, shotcrete is widely used in enginnering. 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 value is 56.4Mpa, the minimum value is 30.7Mpa, and the average value is 40.5Mpa,which can meet the specification design requirements. It is show that the application of sprayed concrete in the construction can achieve significant economic benefits under the premise of ensuring quality. And reduce the environmental pollution caused by the storage of bulk mineral materials such as coal. It will be used as a reference for similar projects in the future significance.

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