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Title |
Estimation on Filling Performance of Thixotropic Grout for Increasing Front-Water Depth of Gravity-Type Quay Wall
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Authors |
장경필(Kyong-Pil Jang) ; 유용선(Yong-Sun Ryu) ; 권승희(Seung-Hee Kwon) ; 한운우(Woon-Woo Han) ; 오명학(Myong-Hak Oh) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.6.169 |
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Keywords |
가소성 그라우트 ; 증심공법 ; 충진성능 ; 사석마운드 ; 중력식 안벽 구조물 Thixotropic grout ; Deepening front-water depth ; Filling performance ; Rubble mound ; Gravity-Type Quay Wall |
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Abstract |
Recently, as the size of transportation vessels has increased, there is a growing need for securing the front-water depths of existing port facilities. The method of deepening front-water depth is securing the depth of the port facility, and it is reinforced by grouting after excavating the rubble-mound to the required depth. The purpose of this study is to investigate the reinforcing performance and filling performance of thixotropic grout as a grouting material for reinforcing rubble-mound. Compressive strength tests were carried out for two types of thixotropic grout, and 5 specimens with a diameter of 400 mm and a height of 530 mm were manufactured and evaluated for filling performance. The required strength of reinforced rubble-mound required to ensure the safety of the structure is 6 MPa. All the thixotropic grouts used in this study were found to satisfy the required strength over 9 MPa at 7 days of age. As a result of visual observation of filling state of the filling performance test specimens, it was confirmed that the thixotropic grout was well filled up to the desired fillet height.
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