整体式U形渠道不同断面结构抗冻胀性研究

S277%TV698.26; 针对倾角与渠道衬砌抗冻胀性定量关系存在不足的问题,以河套灌区D80整体式U形渠道为例,结合力学模型和数值模拟,分析不同条件下适用于当地冻胀环境的整体式U形渠道断面结构.结果 表明:倾角越小渠道越窄深,渠顶水平冻胀量越大,渠底应力越大;反之,倾角越大渠道越宽浅,渠底竖向冻胀量越大.渠基土冻胀性、渠道混凝土衬砌强度和厚度对渠道抗冻胀性影响较大.对于亚黏土基土,选择0.07 m厚衬砌,10°倾角为宜;对于粉土基土,选择0.08 m厚衬砌,13°倾角为宜....

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Published in东北大学学报（自然科学版） Vol. 41; no. 9; pp. 1341 - 1347
Main Authors 王玉宝, 王亮, 程森浩, 胡战峰
Format Journal Article
LanguageChinese
Published 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100 01.09.2020
西北农林科技大学中国旱区节水农业研究院,陕西杨凌 712100%陕西省桃曲坡水库灌溉管理局,陕西铜川 727031
Subjects
U形渠道
力学模型
数值模拟
冻胀
Online AccessGet full text
ISSN1005-3026
DOI10.12068/j.issn.1005-3026.2020.09.021

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Abstract S277%TV698.26; 针对倾角与渠道衬砌抗冻胀性定量关系存在不足的问题,以河套灌区D80整体式U形渠道为例,结合力学模型和数值模拟,分析不同条件下适用于当地冻胀环境的整体式U形渠道断面结构.结果 表明:倾角越小渠道越窄深,渠顶水平冻胀量越大,渠底应力越大;反之,倾角越大渠道越宽浅,渠底竖向冻胀量越大.渠基土冻胀性、渠道混凝土衬砌强度和厚度对渠道抗冻胀性影响较大.对于亚黏土基土,选择0.07 m厚衬砌,10°倾角为宜;对于粉土基土,选择0.08 m厚衬砌,13°倾角为宜.
AbstractList S277%TV698.26; 针对倾角与渠道衬砌抗冻胀性定量关系存在不足的问题,以河套灌区D80整体式U形渠道为例,结合力学模型和数值模拟,分析不同条件下适用于当地冻胀环境的整体式U形渠道断面结构.结果 表明:倾角越小渠道越窄深,渠顶水平冻胀量越大,渠底应力越大;反之,倾角越大渠道越宽浅,渠底竖向冻胀量越大.渠基土冻胀性、渠道混凝土衬砌强度和厚度对渠道抗冻胀性影响较大.对于亚黏土基土,选择0.07 m厚衬砌,10°倾角为宜;对于粉土基土,选择0.08 m厚衬砌,13°倾角为宜.
Author 程森浩
胡战峰
王亮
王玉宝
AuthorAffiliation 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌 712100;西北农林科技大学中国旱区节水农业研究院,陕西杨凌 712100%陕西省桃曲坡水库灌溉管理局,陕西铜川 727031
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WANG Liang
CHENG Sen-hao
HU Zhan-feng
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力学模型
数值模拟
冻胀
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Snippet S277%TV698.26; 针对倾角与渠道衬砌抗冻胀性定量关系存在不足的问题,以河套灌区D80整体式U形渠道为例,结合力学模型和数值模拟,分析不同条件下适用于当地冻胀环境的整体式U形渠道断面结构.结果...
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Title 整体式U形渠道不同断面结构抗冻胀性研究
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