考虑水平（切向）位移影响的垫层孔隙内土工膜顶胀变形分析

姜晓桢; 田晓丹

doi:10.11779/CJGE201805023

考虑水平（切向）位移影响的垫层孔隙内土工膜顶胀变形分析 English Version

姜晓桢¹,
田晓丹^2,3

姜晓桢;
1,田晓丹2,3

详细信息

作者简介:
姜晓桢(1985- ),男,博士,主要从事土石坝工程方面的科研工作。E-mail：xzjiang@nhri.cn。

计量
- 文章访问数: 285
- HTML全文浏览量: 3
- PDF下载量: 155
出版历程
- 修回日期: 2017-03-05
- 发布日期: 2018-05-24

Bulge deformation of geomembrane in surface holes of cushion layers considering horizontal (tangential) displacement

JIANG Xiao-zhen¹,
TIAN Xiao-dan^2,3

1. Department of Geotechnical Engineering, Nanjing Hydraulic Research Institute, Nanjing 210024, China;
2. WenTian College of Hohai University, Maanshan 243031, China;
3. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China

摘要

- 土工膜 /
- 垫层孔隙 /
- 顶胀变形 /
- 水平（切向）位移
Abstract: The common cushion layer used in the geomembrane face rockfill dam is made of granular materials such as gravel and non-fine concrete where bulge deformation or failure of geomembrane is very likely to occur in its surface holes. The curve intersection method based on the thin film theory is the common method used to analyze the bulge deformation of the geomembrane in the surface holes of cushion layer. However, it is inaccurate due to the neglection of horizontal (tangential) displacement of the geomembrane. Based on the FEM theory, a new method is proposed, which takes the horizontal (tangential) displacement of geomembrane into consideration, and is validated by the bulge tests on the geomembrane in a circular hole. The deformations and strains of the geomembrane in different shapes of holes are analyzed by this method, and different strain distributions and failure modes are obtained. The curve intersection method is also used to compare with the new method under the same condition. It is indicated that there is less difference in the deformation and average strain of the geomembrane when the water pressure is low. However, when the water pressure is relatively high, the influences of horizontal (tangential) displacement of the geomembrane on its strain should not be neglected.
- geomembrane /
- cushion hole /
- bulge deformation /
- horizontal (tangential) displacement

HTML全文

参考文献(20)

[1]	束一鸣, 张利新, 袁全义, 等. 西霞院反调节水库土石坝膜防渗工艺[J]. 水利水电科技进展, 2009, 29(6): 70-73. (SHU Yi-ming, ZHANG Li-xin, YUAN Quan-yi, et al. Geomembrane seepage control techniques of Xixiayuan earth-rock dam[J]. Advances in Science and Technology of Water Resources, 2009, 29(6): 70-73. (in Chinese))
[2]	DANIEL P, LAURENT P, PATRICE M. Feedback and guidelinesfor geomembrane lining systems of mountain reservoirs in France [J].Geotextiles and Geomembranes, 2011, 29(5): 415-424.
[3]	CAZZUFFI D. The use of geomembranes in Italian dams[J]. International Water Power & Dam Construction, 1987, 39(6): 17-21.
[4]	李岳军, 周建平, 何世海, 等. 抽水蓄能电站水库土工膜防渗技术的研究和应用[J]. 水力发电, 2006, 32(3): 67-69, 80. (LI Yue-jun, ZHOU Jian-ping, HE Shi-hai, et al. Study on and application of geotech-membrane in the leakage prevention works of reservoirs of the pumped storage power station[J]. Water Power, 2006, 32(3): 67-69, 80. (in Chinese))
[5]	滕兆明, 束一鸣, 吴海民, 等. 无沙混凝土垫层配合比及力学性能试验研究[J]. 人民黄河, 2012, 34(10): 139-141. (TENG Zhao-ming, SHU Yi-ming, WU Hai-min, et al. Study of test on mixed proportions design and mechanical properties of no fines concrete cushion layer[J]. Yellow River, 2012, 34(10): 139-141. (in Chinese))
[6]	顾淦臣. 土工合成材料工程应用手册[M]. 北京: 中国建筑工业出版社, 2000: 847-849. (GU Gan-chen. The application manual of geosynthetics[M]. Bejing: China Architecture & Building Press, 2000: 847-849. (in Chinese))
[7]	沈长松, 顾淦臣. 复合土工膜厚度计算方法研究[J]. 河海大学学报(自然科学版), 2004, 32(4): 395-398. (SHEN Chang-song, GU Gancheng. Calculation method for thickness of composite geomembrane[J]. Journal of Hohai University (natural sciences), 2004, 32(4): 395-398.(in Chinese))
[8]	HORNSEY W P, WISHAW D M. Development of a methodology for the evaluation of geomembrane strain and relative performance of cushion geotextiles[J]. Geotextiles and Geomembranes, 2012, 35(5): 87-99.
[9]	BRACHMAN R W I, EASTMAN M K. Calculating local geomembrane indentation strains from measured radial and vertical displacements[J]. Geotextiles and Geomembranes, 2013, 40(3): 58-68.
[10]	李旺林, 刘占磊, 孟祥涛, 等. 土工膜环向约束气胀变形试验研究[J]. 岩土工程学报, 2016, 38(6): 1147-1151. (LI Wang-lin, LIU Zhan-lei, MENG Xiang-tao, et al. Experimental study on air expansion deformation of geomembrane under ring-restrained conditions[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(6): 1147-1151. (in Chinese))
[11]	GALLIOT C, LUCHSINGER R H. Uniaxial and biaxial mechanical properties of ETFE foils[J]. Polymer Testing, 2011, 30(4): 356-365.
[12]	王勖成. 有限单元法[M]. 北京: 清华大学出版社, 2003: 57-68. (WANG Xu-cheng. Finite element method[M]. Beijing: Tsinghua University Press, 2003: 57-68. (in Chinese))
[13]	杨帆. PVC土工膜筒状双向拉伸力学特性试验研究[D]. 南京: 河海大学, 2016. (YANG Fan. Testing study on mechanical properties of cannular biaxial tensile of PVC geomembrane[D]. Nanjing: Hohai University, 2016. (in Chinese))
[14]	束一鸣, 叶乃虎. LDPE土工膜液胀极限荷载的工程仿真实验[J]. 水利水电科技进展, 2003, 23(5): 1-3. (SHU Yi-ming, YE Nai-hu. Simulation test for mullen burst limit load of LDPE geomembrane[J]. Advances in Science and Technology of Water Resources, 2003, 23(5): 1-3. (in Chinese))
[15]	束一鸣, 潘江. 损伤土工膜液胀强度试验研究[J]. 水利水电科技进展, 2005, 25(6): 34-36. (SHU Yi-ming, PAN Jiang. Mullen strength experiment on damaged geomembrane[J]. Advances in Science and Technology of Water Resources, 2005, 25(6): 34-36. (in Chinese))
[16]	束一鸣, 李永红. 较高土石坝膜防渗结构设计方法探讨[J].河海大学学报（自然科学版）, 2006, 34(1): 60-64. (SHU Yi-ming, LI Yong-hong. Design of impervious structure with geomembrane for high earth-rock dams[J]. Journal of Hohai University (Natural Sciences), 2006, 34(1): 60-64. (in Chinese))
[17]	束一鸣. 防渗土工膜工程特性的探讨[J]. 河海大学学报, 1993, 21(4): 1-6. (SHU Yi-ming. Engineering characters of geomembrane[J]. Journal of Hohai University, 1993, 21(4): 1-6. (in Chinese))
[18]	吴海民, 束一鸣, 曹明杰, 等. 土工合成材料双向拉伸多功能试验机的研制及初步应用[J]. 岩土工程学报, 2014, 36(1): 170-175. (WU Hai-min, SHU Yi-ming, CAO Ming-jie, et al. Development and application of multi-functional biaxial tensile testing machine for geosynthetics[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(1): 170-175.(in Chinese))
[19]	张连卫, 张建民, 张嘎. 基于数字图像的粒状材料细观组构特征分析技术[J]. 岩土工程学报, 2008, 30(10): 1555-1559. (ZHANG Lian-wei, ZHANG Jian-min, ZHANG Ga. Microfabric analysis technique for granular materials based on digital images[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(10): 1555-1559. (in Chinese))
[20]	吴海民, 束一鸣, 姜晓桢, 等. 高面膜堆石坝运行状态下土工膜双向拉伸力学特性——高面膜堆石坝关键技术（三）[J]. 水利水电科技进展, 2015, 35(1): 16-22. (WU Hai-min, SHU Yi-ming, JIANG Xiao-zhen. Biaxial tensile mechanical property of geomembrane used as high membrane faced rockfill dam: key technology of high membrane faced rock-fill dam (Ⅲ)[J]. Advances in Science and Technology of Water Resources, 2015, 35(1): 16-22. (in Chinese))

施引文献(14)

期刊类型引用(2)

1.	谢军，李延涛，宗金辉，黄久鹏. 斜交隧道—土体相互作用体系振动台试验设计. 科学技术与工程. 2022(17): 7165-7173 . 百度学术
2.	李平，刘应慈，周楷，朱胜，李玉影. 振动台模型试验相似设计综述. 防灾科技学院学报. 2020(04): 29-35 . 百度学术