利用新型土工格室作为管道上浮对策及其模型试验验证

IF 4.7 1区 工程技术 Q1 ENGINEERING, GEOLOGICAL Geotextiles and Geomembranes Pub Date : 2023-12-15 DOI:10.1016/j.geotexmem.2023.11.004
Taishi Nagatani , Yutaka Sawada , Yusuke Inoue , Shuji Ito , Hoe I. Ling , Toshinori Kawabata
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引用次数: 0

摘要

在本研究中,我们提出了一种新的方法来防止管道的隆起,利用土工格室,以改善管道的和易性,增加抗拔能力。作为基础研究,对模型管道进行了俯卧撑试验,验证土工格室加固的有效性。试验结果表明,与不加筋相比,土工格室加固可使峰值阻力提高1.5倍以上,大位移(位移为40 mm)阻力最大提高3倍以上,表明土工格室加固是一种有效的管材抗拔措施。土工格室与土工织物的组合在大位移(位移为40 mm)时的阻力比单独土工格室增加了1.41倍,显著增加了隆升阻力。特别是,从管道顶部向下增加土工细胞的数量(在管道一侧),并将左右土工细胞与土工布集成,大大增加了大位移(位移为40 mm)时的峰值阻力和阻力。
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New geocell utilisation as a pipe uplifting countermeasure and its validation using model experiments

In this study, we proposed a new method for preventing the uplift of a pipe using geocells, to improve the workability of the pipelines and increase the uplift resistance. As a fundamental study, push-up tests were conducted on the model pipe to verify the effectiveness of the geocell reinforcement. The experimental results showed that geocell reinforcement increased the peak resistance by more than 1.5 times and the resistance at large displacement (at a displacement of 40 mm) by more than 3 times at maximum, compared to the unreinforced method, indicating that geocell reinforcement is an effective countermeasure against pipe uplift. The combination of geocells and geotextiles increased the resistance at large displacement (at a displacement of 40 mm) by 1.41 times more than only geocell, contributing significantly to the increase in uplift resistance. In particular, increasing the number of geocells downward from the top of the pipe (on the side of the pipe), and integrating the left and right geocells with the geotextile, increased considerably the peak resistance and resistance at large displacement (at a displacement of 40 mm).

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来源期刊
Geotextiles and Geomembranes
Geotextiles and Geomembranes 地学-地球科学综合
CiteScore
9.50
自引率
21.20%
发文量
111
审稿时长
59 days
期刊介绍: The range of products and their applications has expanded rapidly over the last decade with geotextiles and geomembranes being specified world wide. This rapid growth is paralleled by a virtual explosion of technology. Current reference books and even manufacturers' sponsored publications tend to date very quickly and the need for a vehicle to bring together and discuss the growing body of technology now available has become evident. Geotextiles and Geomembranes fills this need and provides a forum for the dissemination of information amongst research workers, designers, users and manufacturers. By providing a growing fund of information the journal increases general awareness, prompts further research and assists in the establishment of international codes and regulations.
期刊最新文献
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