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Home
Contribution Guide
About Journal
Submission Guidelines
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Journal Online
Online First
Current Articles
Archive
Most Download
Top View
Top Cited
Advanced Search
Ethics Statement
Open Access Policies
Author Field
中文
LIZehua, . 重塑压实黏土Ⅰ型断裂试验研究[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 44-50. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.07
Citation:
LIZehua, . 重塑压实黏土Ⅰ型断裂试验研究[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 44-50. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.07
LIZehua, . 重塑压实黏土Ⅰ型断裂试验研究[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 44-50. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.07
Citation:
LIZehua, . 重塑压实黏土Ⅰ型断裂试验研究[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 44-50. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.07
重塑压实黏土Ⅰ型断裂试验研究
LIZehua
,
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Abstract
为探究重塑黏土Ⅰ型断裂韧度,本文在前人研究基础上,通过对应变控制式直剪仪进行改造,消除了传统三点弯曲试验对土体断裂韧度测试所带来的影响,研制了土体Ⅰ型断裂韧度测试仪,并对重塑黏土进行了一系列试验。试验结果表明:新研制出的土体Ⅰ型断裂韧度测试仪具有较好的可靠性;对具有相同物理状态的试样,U 形裂纹试样的断裂韧度最大,三角形裂纹试样的断裂韧度最小;试样的含水率和干密度其断裂韧度KIC具有显著影响,随含水率增加,断裂韧度呈现先增后减的变化规律,而随干密度增加,断裂韧度几乎线性增加;在试验采用的加载速率范围内,加载速率对断裂韧度的影响较小。
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