中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 土石坝心墙填土恒压吸湿变形试验研究 山东农业大学学报(自然科学版) 2013,44 (1) 79-83
Position: Home > Articles > EXPERIMENTAL STUDY ON THE WETTING DEFORMATION OF THE SOIL USED IN THE CORE WALL OF EARTH-ROCK DAM UNDER CONSTANT PRESSURE Journal of Shandong Agricultural University(Natural Science Edition) 2013,44 (1) 79-83

土石坝心墙填土恒压吸湿变形试验研究

作  者：
郭冲;邱秀梅;赵晓龙;卞汉兵
单  位：
山东农业大学水利土木工程学院
关键词：
土石坝;水力劈裂;非饱和土;湿陷变形;饱和
摘  要：
通过一维固结试验分析了各级压力下非饱和重塑土在加水饱和过程中的变形特征,结果显示不同压力下试件饱和过程的变形呈现出不同特征。试验结果如下:50 kPa压力下呈现出膨胀特征;100 kPa、150 kPa和200kPa压力下,呈现出先膨胀后压缩的特征,而且最终变形与加水前相比也各有不同;300kPa和400kPa压力下,试件压缩变形量明显增大。此种变形特征可能会导致土石坝心墙在蓄水过程中形成裂缝,从而为土石坝心墙发生水力劈裂破坏提供条件。
译  名：
EXPERIMENTAL STUDY ON THE WETTING DEFORMATION OF THE SOIL USED IN THE CORE WALL OF EARTH-ROCK DAM UNDER CONSTANT PRESSURE
作  者：
GUO Chong,QIU Xiu-mei﹡,ZHAO Xiao-long,BIAN Han-bing(College of Water Conservancy and Civil Engineering,Shandong Agricultural University,Taian 271018,China)
关键词：
earth-rock filled dam;hydraulic fracture;unsaturated soil;collapse;wetting
摘  要：
By using the conventional oedometer consolidation test,the deformation characteristics of unsaturated remolded soil under constant compression stresses subjected to wetting process were analyzed.The test result indicates that the deformation characteristics were different under different constant compression stresses.The test result is as follows: under the pressure of 50kPa the specimen was expansive;under the pressure of 100kPa,150kPa and 200kPa,the deformations had a transition from expansion to compression,and the final total deformations were respectively different from the deformations compared with prior to the saturation process;and under the pressure of 300kPa and 400kPa,the collapse was observed.The deformation characteristics may lead to cracks in the core of earth-rock fill dam which cause the hydraulic fracture.

相似文章

导出引用
计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46