UNDERWATER RIPRAP REPARATION-AND-REINFORCEMENT TECHNIQUE FOR GRAVITY-TYPE PIERS AND INVESTIGATION OF ITS EFFECTIVENESS

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概要

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• This paper discusses a reinforcement method for pouring high-pressure non-dispersive mortar into underwater piers of riprap, and an integrated detection method for the effectiveness of the reinforcement. For verifying the highpressure grouting enforcement quality, we apply comprehensive non-destructive geophysical methods including ground penetrating radar (GPR) and elastic wave tomography, incorporating with wave velocity test and point loading strength test for core samples. Elastic wave tomographic results show that the velocity of high-quality pouring region increases and that of the low-quality pouring region is low. GPR profiles indicate that the reflection strength from the interface between solid and hollow concrete layers becomes weak after pouring. Core samples verify these phenomena.

著者

• LIU Hongjun

  Departmet of Chemistry, University of Science and Technology of China

• Zheng Jianguo

  Department Of Geo-environmental Engineering Institute Of Environmental Science And Engineering Key L

• WANG XIUHAI

  Department of Geo-Environmental Engineering, Institute of Environmental Science and Engineering, Key

• QIU DONGLING

  Department of Geo-Environmental Engineering, Institute of Chemistry and Chemical Engineering, Key La

• Qiu Dongling

  Department Of Geo-environmental Engineering Institute Of Chemistry And Chemical Engineering Key Lab

• Wang Xiuhai

  Department Of Geo-environmental Engineering Institute Of Environmental Science And Engineering Key L

• Liu Hongjun

  Department Of Epidemiology & Social Medicine Xuanwu Hospital Capital Medical University

• Liu Hongjun

  Department Of Geo-environmental Engineering Institute Of Environmental Science And Engineering Key L

関連論文

• UNDERWATER RIPRAP REPARATION-AND-REINFORCEMENT TECHNIQUE FOR GRAVITY-TYPE PIERS AND INVESTIGATION OF ITS EFFECTIVENESS
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