[1]沈春林,王伟,钟建,等.九圩港闸站枢纽工程场地粉砂土静、动力特性试验研究[J].江苏水利,2024,(07):47-52.
SHEN Chunlin,WANG Wei,ZHONG Jian,et al.Experimental study on static and dynamic characteristics of silty soil in the site of Jiuwei Port Sluice Station Hub Project[J].JIANGSU WATER RESOURCES,2024,(07):47-52.
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九圩港闸站枢纽工程场地粉砂土静、动力特性试验研究(
)
《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
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- 期数:
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2024年07期
- 页码:
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47-52
- 栏目:
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水利工程建设
- 出版日期:
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2024-07-15
文章信息/Info
- Title:
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Experimental study on static and dynamic characteristics of silty soil in the site of Jiuwei Port Sluice Station Hub Project
- 文章编号:
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1007-7839(2024)07-0047-0006
- 作者:
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沈春林1; 王伟1; 钟建1; 吴建伟2
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(1. 南通市九圩港水利工程管理所,江苏 南通 226003;2. 南通市通吕运河水利工程管理所,江苏 南通 226000)
- Author(s):
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SHEN Chunlin1; WANG Wei1; ZHONG Jian1; WU Jianwei2
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(1. Nantong Jiuwei Port Water Conservancy Engineering Management Office, Nantong 226003, China;2. Nantong-Lvsi Canal Water Conservancy Engineering Management Office, Nantong 226000, China)
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- 关键词:
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九圩港闸站枢纽工程; 粉砂土; 三轴剪切; 动力特性
- Keywords:
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Jiuwei Port Sluice Station Hub Project; silty soil; triaxial shear; dynamic characteristics
- 分类号:
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TU521
- 文献标志码:
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A
- 摘要:
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为研究九圩港闸站枢纽工程场地含化学污染物Cu2+的粉砂土承载能力,设计开展了三轴静力测试与循环动荷载加卸试验。试验数据分析表明:围压对粉砂土试样应变特征影响高于化学污染物Cu2+含量,而化学污染物会削弱试样承载能力,且削弱效应逐步增强;在动荷载循环加卸过程,不同强度的围压作用,试样内部孔隙结构演化路径各有区别;当化学污染物Cu2+含量增大,则孔压分布愈低,而随着循环振次进程加快,则各Cu2+含量试样之间的孔压差幅更大;在各围压作用下,动弹性模量随应变均为“递减-稳定”变化特征,围压作用还会影响化学污染物含量对动弹性模量参数影响效应。
- Abstract:
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To study the bearing capacity of silty soil containing chemical pollutant Cu2+ in the Jiuwei Port Sluice Station Hub Project site, triaxial static tests and cyclic dynamic load loading and unloading tests were designed and carried out. Based on experimental data analysis, it is shown that the influence of confining pressure on the strain characteristics of silty soil samples is higher than that of chemical pollutant Cu2+ content, and chemical pollutants weaken the bearing capacity of the samples, and the weakening effect gradually strengthens. During the process of cyclic loading and unloading under dynamic loads, the evolution paths of the internal pore structure of the specimen vary with different intensities of confining pressure. When the content of chemical pollutant Cu2+ increases, the pore pressure distribution becomes lower, and as the cyclic vibration process accelerates, the pore pressure difference between samples with different Cu2+ contents become larger. Under various confining pressures, the dynamic elastic modulus exhibits a “decreasing stable” variation characteristic with strain, and the confining pressure also affects the effect of chemical pollutant content on the dynamic elastic modulus parameters.
参考文献/References:
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备注/Memo
- 备注/Memo:
-
收稿日期:2024-03-26
作者简介:沈春林(1990—),男,工程师,本科,主要从事泵站、水闸运行管理工作。E-mail:pk5603@163.com
更新日期/Last Update:
2024-07-15