土壤可侵蚀性对河岸侵蚀和崩塌的影响

IF 0.6 Q3 ENGINEERING, MULTIDISCIPLINARY
Nur Aqilah Mohd Rosli, Saerahany Legori Ibrahim, Siti Hajar Binti Yusoff
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引用次数: 0

摘要

河岸侵蚀是土质材料从河岸表面剥离的自然过程。自然引起的河岸侵蚀过程会形成山谷、峡谷和富饶的冲积平原等地貌。然而,当河岸侵蚀过程以惊人的速度发生,导致土地流失时,也可将其视为一种危害。侵蚀程度取决于许多因素。造成河岸侵蚀的主要因素之一是土壤的可侵蚀性,即土壤的抗侵蚀能力。本研究的目的是量化河岸侵蚀率和河岸侵蚀的潜在规模,以便生成一个经验预测模型,根据物理和地貌变量估算易受河岸侵蚀的河流的河岸侵蚀情况。使用 MATLAB 软件中的回归学习器应用程序对多个模型进行了训练。包含土壤侵蚀参数的模型比不包含土壤侵蚀参数的模型表现更好。发现精度最高的模型是模型 2,其均方根误差 (RMSE) 为 3.70E-08,判定系数 R2 为 0.55。本研究建立的模型将有助于分析和预测河岸侵蚀的影响,并有助于制定河岸稳定解决方案。摘要河岸侵蚀是土壤物质从悬崖峭壁上剥离的自然过程。河岸侵蚀这一自然过程会形成山谷、峡谷和富饶的冲积平原等地貌。然而,当河岸侵蚀过程以惊人的速度发生,导致土壤流失时,河岸侵蚀也可被视为一种威胁。侵蚀程度取决于许多因素。导致河岸侵蚀的主要因素之一是土壤渗透性,即土壤的抗侵蚀能力。本研究旨在量化河岸侵蚀的程度,评估河岸侵蚀的潜在规模,并根据物理和地貌变量生成经验预测模型,以估算受河岸侵蚀影响的河流的河岸侵蚀情况。使用 MATLAB 软件中的回归学习器应用程序对多个模型进行了训练。结果表明,包含土壤硬度参数的模型优于不包含土壤硬度参数的模型。模型 2 的精确度最高,其二乘幂最小根误差 (RMSE) 为 3.70E-08,确定系数 R2 为 0.55。本研究中的模型有助于分析河流悬崖稳定性的影响以及悬崖稳定性发展的解决方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
EFFECTS OF SOIL ERODIBILITY ON RIVERBANK EROSION AND FAILURES
Riverbank erosion is a natural process of removal of earthen materials from the bank surface. The process of riverbank erosion that is induced naturally results in the formation of landforms such as valleys, canyons, and productive floodplains. However, riverbank erosion can also be considered a hazard when the process occurs at an alarming rate causing loss of land. The extent of erosion depends on many factors. One of the main factors responsible for riverbank erosion is the soil erodibility which is the resistance of soil to erosion. The aim of this study is to quantify the riverbank erosion rates and the potential magnitude of riverbank erosion in order to generate an empirical predictive model to estimate riverbank erosion from physical and geomorphic variables for rivers susceptible to riverbank erosion. Several models were trained using the Regression Learner application in MATLAB software. Models that include soil erodibility parameters perform better than the models without the soil erodibility parameters. The model with the highest accuracy was found to be Model 2, with Root Mean Square Error (RMSE) of 3.70E-08 and coefficient of determination, R2 of 0.55. The model produced in this study will be helpful to analyze and predict the effects of riverbank erosion and assist in the development of bank stabilization solution. ABSTRAK: Hakisan tebing sungai adalah proses semula jadi terhadap penyingkiran bahan tanah dari permukaan tebing. Proses hakisan tebing sungai yang terjadi secara semula jadi ini mengakibatkan pembentukan bentuk muka bumi seperti lembah, ngarai dan dataran banjir yang produktif. Bagaimanapun, hakisan tebing sungai juga boleh dianggap sebagai ancaman apabila proses berlaku pada kadar membimbangkan sehingga menyebabkan kehilangan tanah. Tahap hakisan bergantung pada banyak faktor. Salah satu faktor utama yang menyebabkan hakisan tebing sungai adalah kebolehhakisan tanah iaitu ketahanan tanah terhadap hakisan. Kajian ini bertujuan untuk mengukur kadar hakisan tebing sungai, mengkaji potensi magnitud hakisan tebing sungai dan menghasilkan model ramalan empirik bagi menganggarkan hakisan tebing sungai daripada pembolehubah fizikal dan geomorfik bagi sungai yang terdedah kepada hakisan tebing sungai. Beberapa model telah dilatih menggunakan aplikasi Regression Learner dalam perisian MATLAB. Dapatan menunjukkan model yang mengandungi parameter kebolehhakisan tanah adalah lebih baik berbanding model tanpa parameter kebolehhakisan tanah. Model 2 didapati mempunyai ketepatan tertinggi dengan ralat punca min kuasa dua (RMSE) sebanyak 3.70E-08 dan pekali penentuan, R2 sebanyak 0.55. Model dalam kajian ini dapat membantu dalam analisa berkaitan kesan hakisan tebing sungai dan penyelesaian kepada pembangunan kestabilan tebing.
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来源期刊
IIUM Engineering Journal
IIUM Engineering Journal ENGINEERING, MULTIDISCIPLINARY-
CiteScore
2.10
自引率
20.00%
发文量
57
审稿时长
40 weeks
期刊介绍: The IIUM Engineering Journal, published biannually (June and December), is a peer-reviewed open-access journal of the Faculty of Engineering, International Islamic University Malaysia (IIUM). The IIUM Engineering Journal publishes original research findings as regular papers, review papers (by invitation). The Journal provides a platform for Engineers, Researchers, Academicians, and Practitioners who are highly motivated in contributing to the Engineering disciplines, and Applied Sciences. It also welcomes contributions that address solutions to the specific challenges of the developing world, and address science and technology issues from an Islamic and multidisciplinary perspective. Subject areas suitable for publication are as follows: -Chemical and Biotechnology Engineering -Civil and Environmental Engineering -Computer Science and Information Technology -Electrical, Computer, and Communications Engineering -Engineering Mathematics and Applied Science -Materials and Manufacturing Engineering -Mechanical and Aerospace Engineering -Mechatronics and Automation Engineering
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