Volume 41 Issue 3
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HUA Dejun, WANG Qiren, WANG Kun, HUANG Yufeng, ZHANG Jian, DENG Guowen. Application of ground penetrating radar in grouting quality testing in duct of prestressed steel strand[J]. COAL GEOLOGY & EXPLORATION, 2013, 41(3): 46-50. DOI: 10.3969/j.issn.1001-1986.2013.03.011
Citation: HUA Dejun, WANG Qiren, WANG Kun, HUANG Yufeng, ZHANG Jian, DENG Guowen. Application of ground penetrating radar in grouting quality testing in duct of prestressed steel strand[J]. COAL GEOLOGY & EXPLORATION, 2013, 41(3): 46-50. DOI: 10.3969/j.issn.1001-1986.2013.03.011
shu

Application of ground penetrating radar in grouting quality testing in duct of prestressed steel strand

  • 1. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;

  • 2. Anhui Transportation Investment Group Co., Ltd, Hefei 230088, China

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  • Received Date: June 01, 2012
  • Available Online: October 22, 2021
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    • Abstract
  • The grouting fullness degree of concrete bridge is directly related to the bridge safety and life. However, the present methods cannot accurately test the corrugated pipe grouting quality of corrugated pipe. The paper, using the generalized completely matched layer (GPML) as absorbing boundary, based on the finite difference of time domain (FDTD), made 2-D GPR simulations of the grouting hole with same depth and different size in the steel strand, in combination with engineering window verification, summarized the characteristics and rules of duct grouting defects in radar image. The method provides theoretical foundation for detection of grouting fullness degree of corrugated pipe by ground penetrating radar.
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