https://scholars.lib.ntu.edu.tw/handle/123456789/576057
標題: | Soil Improvement and Inspection Techniques for the Base Course of Rigid Pavement for an Airport Runway | 作者: | Lin S.-J Liu T.-Y Chou N.N.S Chen P.-H Liao C.-L. PO-HAN CHEN |
關鍵字: | Airport runways; Concrete aggregates; Concrete buildings; Concrete construction; Efficiency; Geological surveys; Geophysical prospecting; Ground penetrating radar systems; Grouting; Mortar; Pavements; Soils; Falling weight deflectometer (FWD); Ground penetrating radar (GPR); Grouting materials; Grouting methods; Inspection technique; International airport; Reliable methods; Surface settlements; Concrete slabs | 公開日期: | 2021 | 卷: | 35 | 期: | 2 | 來源出版物: | Journal of Performance of Constructed Facilities | 摘要: | The Taiwan Taoyuan International Airport (TTIA) has been in service for more than 40 years. Some visible defects on the rigid pavement runway have been observed in recent years. In this paper, the authors aim to provide a practical and reliable method to improve the soil condition under the rigid pavement of a damaged airport runway. In addition, the authors present an inspection technique with excellent results, which could be evidence for the high efficiency of the proposed improvement work. The defects included surface settlement, slurry leakage through the gaps between panels (pumping), concrete panel cracks, and so on. In this TTIA case, the underpanel grouting method (UPGM) was selected to solve these problems. Grouting flow and pressure were well controlled, and the soil in the base course was successfully reinforced, with the gaps between the concrete panels and the aggregate base course filled. Under the application of the UPGM, 7,170 grouting holes were drilled, and 1,453,723 kg of grouting materials were used to improve the soil conditions under the rigid pavement runway 23L-05R. For verification of its effectiveness, a ground-penetrating radar (GPR) and a falling weight deflectometer (FWD) were used. No noticeable deviation was observed in the GPR reports. Besides, the test results of FWD for concrete panel 71-6 - the deflection ratios of the corner/center, which were tested before and after grouting - are 188% and 109%, respectively. All the test results show excellent efficiency of the UPGM. ? 2021 American Society of Civil Engineers. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099103170&doi=10.1061%2f%28ASCE%29CF.1943-5509.0001560&partnerID=40&md5=b28476db11b43be0637975b101c47501 https://scholars.lib.ntu.edu.tw/handle/123456789/576057 |
ISSN: | 8873828 | DOI: | 10.1061/(ASCE)CF.1943-5509.0001560 |
顯示於: | 土木工程學系 |
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