Feedback on work behavior of composite geomembrane in Wangfuzhou hydraulic project based on measured piezometric level

HUANG Yao-ying; XIE Tong; FEI Da-wei; BAO Teng-fei; YAN Jian

doi:10.11779/CJGE202103020

Volume 43 Issue 3

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Chinese Journal of Geotechnical Engineering > 2021 > 43(3): 564-571. > DOI: 10.11779/CJGE202103020

HUANG Yao-ying, XIE Tong, FEI Da-wei, BAO Teng-fei, YAN Jian. Feedback on work behavior of composite geomembrane in Wangfuzhou hydraulic project based on measured piezometric level[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(3): 564-571. DOI: 10.11779/CJGE202103020

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Feedback on work behavior of composite geomembrane in Wangfuzhou hydraulic project based on measured piezometric level

1.
College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang 443002, China
2.
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210024, China
3.
Hubei Hanjiang Wangfuzhou Hydropower Co., Ltd., Xiangyang 430048, China

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Received Date: April 19, 2020
Available Online: December 04, 2022

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Abstract

Abstract

The feedback analysis of anti-seepage behavior of composite geomembrane is performed based on nearly 20 years of seepage monitoring data from Wangfuzhou hydraulic project. Firstly, the qualitative analysis of the overall seepage behavior of the embankment earth-rock dam is carried out. Then a typical section is selected to establish the statistical model of piezometric level for quantitative analysis. Subsequently, the orthogonal design, neural network and numerical method are combined to invert the permeability coefficient of the composite geomembrane. Finally, the work behavior of the composite geomembrane is analyzed comprehensively. The results show that the piezometric level only changes greatly at the initial stage of water storage and operation, and the change is relatively stable at present. Additionally, it is found that the piezometric level and separated time-dependent components of three piezometers in the typical GY5 section decrease gradually. At the same time, the permeability coefficient of the composite geomembrane inverted by the piezometric level is 1.11×10^-10 cm/s. The comprehensive analysis shows that the composite geomembrane of Wangfuzhou hydraulic project still has good anti-seepage behavior after nearly 20 years of service, and there is no obvious aging trend.
- composite geomembrane,
- seepage behavior,
- piezometric level,
- statistical model,
- parameter inversion

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References

[1]	《土工合成材料工程应用手册》编写委员会. 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: 118-127. Editing Committee of the Application Manual of Geosynthetics. The Application Manual of Geosynthetics[M]. Beijing: China Architecture & Building Press, 2000: 118-127. (in Chinese)
[2]	束一鸣, 吴海民, 姜晓桢. 中国水库大坝土工膜防渗技术进展[J]. 岩土工程学报, 2016, 38(增刊1): 1-9. SHU Yi-ming, WU Hai-min, JIANG Xiao-zhen. The development of anti-seepage technology with geomembrane on reservoirs and dams in China[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(S1): 1-9. (in Chinese)
[3]	顾淦臣. 复合土工膜或土工膜堤坝实例评述[J]. 水利水电技术, 2002, 33(12): 26-32. GU Gan-chen. Review of dams and dikes with composite geomembrane impervious structure[J]. Water Resources and Hydropower Engineering, 2002, 33(12): 26-32. (in Chinese)
[4]	任大春, 张伟, 吴昌瑜, 等. 复合土工膜的试验技术和作用机理[J]. 岩土工程学报, 1998, 20(1): 10-13. REN Da-chun, ZHANG Wei, WU Chang-yu, BAO Cheng-gang. Testing techniques and functional mechanism of composite geomembranes[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(1): 10-13. (in Chinese)
[5]	薛霞, 李旺林, 李辰, 等. 分离式复合土工膜环向约束鼓胀变形试验研究[J]. 岩土工程学报, 2020, 42(6): 1145-1150. XUE Xia, LI Wang-lin, LI Chen, WEI Ru-chun, et al. Experimental study on expansion deformation of non-thermal-bonding composite geomembrane under ring restraint[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(6): 1145-1150. (in Chinese)
[6]	张宪雷, 刘云锋, 顾克, 等. 高面膜土石坝防渗结构中土工膜弯折(褶皱)试验研究[J]. 岩土工程学报, 2019, 41(8): 1555-1561. ZHANG Xian-lei, LIU Yun-feng, GU Ke, et al. Experimental study on geomembrane bending (folding) in anti-seepage structure of membrane-faced rockfill dam[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(8): 1555-1561. (in Chinese)
[7]	张光伟, 张虎元, 杨博. 高密度聚乙烯复合土工膜性能的室内测试与评价[J]. 水利学报, 2012, 43(8): 967-973. ZHANG Guang-wei, ZHANG Hu-yuan, YANG Bo. Laboratory determination and evaluation on the characteristics of composite geomembrane[J]. Journal of Hydraulic Engineering, 2012, 43(8): 967-973. (in Chinese)
[8]	陶同康. 复合土工薄膜及其防渗设计[J]. 岩土工程学报, 1993, 15(2): 31-39. TAO Tong-kang. Design of impervious layer for embankment dam with geotextile-geomembrane composites[J]. Chinese Journal of Geotechnical Engineering, 1993, 15(2): 31-39. (in Chinese)
[9]	王党在, 李章浩, 王瑞骏. 复合土工膜防渗体土石坝渗流有限元分析[J]. 人民黄河, 2004, 26(12): 37-38. WANG Dang-zai, LI Hao-zhang, WANG Rui-jun. Finite element analysis of seepage of earth-rock dam with composite geomembrane impervious core[J]. Yellow River, 2004, 26(12): 37-38. (in Chinese)
[10]	沈振中, 江沆, 沈长松. 复合土工膜缺陷渗漏试验的饱和-非饱和渗流有限元模拟[J]. 水利学报, 2009, 40(9): 1091-1095. SHEN Zhen-zhong, JIANG Hang, SHEN Chang-song. Numerical simulation of composite geomembrane defect leakage experiment based on saturated-unsaturated seepage theory[J]. Journal of Hydraulic Engineering, 2009, 40(9): 1091-1095. (in Chinese)
[11]	李传奇, 李超超, 王帅, 等. 平原水库土工膜防渗特性分析[J]. 长江科学院院报, 2016, 33(4): 135-139. LI Chuan-qi, LI Chao-chao, WANG Shuai, et al. Anti-seepage performance of geomembrane used in plain reservoir[J]. Journal of Yangtze River Scientific Research Institute, 2016, 33(4): 135-139. (in Chinese)
[12]	姜海波. 高土石坝黏土心墙和复合土工膜防渗性能研究[J]. 水资源与水工程学报, 2013, 24(4): 90-93, 97. JIANG Hai-bo. Study on impermeability clay core wall and composite geo-membrane for high earth-rock dam[J]. Journal of Water Resources & Water Engineering, 2013, 24(4): 90-93, 97. (in Chinese)
[13]	李波, 程永辉, 程展林. 围堰防渗墙与复合土工膜联接型式离心模型试验研究[J]. 岩土工程学报, 2012, 34(11): 2081-2086. LI Bo, CHENG Yong-hui, CHENG Zhan-lin. Centrifugal model tests on connecting form between cutoff wall and composite geomembrane of cofferdam[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 2081-2086. (in Chinese)
[14]	梁伦法, 李华艳, 石含鑫, 等. 复合土工膜应用于堆渣坝防渗设计[J]. 岩土工程学报, 2016, 38(增刊1): 37-41. LIANG Lun-fa, LI Hua-yan, SHI Han-xin, et al. Application of composite geomembrane in seepage control of slag dam[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(S1): 37-41. (in Chinese)
[15]	SCHMIDT R K, YOUNG C, HELWITT J. Long term field performance of geomembranes-15 years experience[C]//Proceeding of the International Conference on Geomembranes, 1984, Denver.
[16]	CAZZUFFI D, GIOFFRE D. Lifetime assessment of exposed PVC-P geomembranes installed on Italian dams[J]. Geotextiles and Geomembranes, 2020, 48(2): 130-136.
[17]	余玲, 赵文昌, 闵令民. PVC复合土工膜老化性能初探[J]. 水利水电技术, 1996(11): 59-62. YU Ling, ZHAO Wen-chang, MIN Ling-min. Studies on ageing characteristics of PVC geocomposite membrance[J]. Water Resources and Hydropower Engineering, 1996(11): 59-62. (in Chinese)
[18]	王殿武, 曹广祝, 仵彦卿. 土工合成材料力学耐久性规律研究[J]. 岩土工程学报, 2005, 27(4): 398-402. WANG Dian-wu, CAO Guang-zhu, WU Yan-qing. Research on the durability law of geosynthetics[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(4): 398-402. (in Chinese)
[19]	魏光辉. 复合土工膜防渗体系下的希尼尔水库大坝渗流分析[J]. 水电站设计, 2016, 32(1): 20-27. WEI Guang-hui. Seepage analysis of Hinir reservoir dam under composite geomembrane seepage control system[J]. Design of Hydroelectric Power Station, 2016, 32(1): 20-27. (in Chinese)
[20]	冯琍. 复合土工膜在王甫洲水利枢纽中的应用[J]. 人民长江, 1999, 30(7): 12-13, 17. FENG Li. Application of composite geomembrane in Wangfuzhou water control project[J]. Yangtze River, 1999, 30(7): 12-13, 17. (in Chinese)
[21]	冯琍. 汉江王甫洲坝堤复合土工膜防渗工程原型观测[J]. 水电自动化与大坝监测, 2003, 27(6): 59-62. FENG Li. The prototype observation of hanjiang wangfuzhou dam with composite geomembrane antiseepage project[J]. Hydropower Automation and Dam Monitoring, 2003, 27(6): 59-62. (in Chinese)
[22]	吴中如. 水工建筑物安全监控理论及其应用[M]. 北京: 高等教育出版社, 2003. WU Zhong-ru. Safety Monitoring Theory & Its Application of Hydraulic Structures[M]. Beijing: Higher Education Press, 2000. (in Chinese)
[23]	梁国钱, 郑敏生, 孙伯永, 等. 土石坝渗流观测资料分析模型及方法[J]. 水利学报, 2003(2): 83-87. LIANG Guo-qian, ZHENG Min-sheng, SUN Bo-yong, et al. Analysis model and method of seepage observation data for earth rock-fill dams[J]. Journal of Hydraulic Engineering, 2003(2): 83-87. (in Chinese)
[24]	刘应龙, 傅蜀燕, 盛韬桢, 等. 考虑滞后效应的复合土工膜土石坝渗流安全性态分析[J]. 水电能源科学, 2015, 33(10): 46-49. LIU Ying-long, FU Shu-yan, SHENG Tao-zhen, et al. Seepage safety status analysis of composite geomembrane earth-rock dam considering lag effect[J]. Water Resources and Power, 2015, 33(10): 46-49. (in Chinese)
[25]	倪化勇, 巴仁基, 刘宇杰. 四川省石棉县地质灾害发生的雨量条件与气象预警(报)[J]. 水土保持通报, 2010, 30(6): 112-118. NI Hua-yong, BA Ren-ji, LIU Yu-jie. Rainfall condition and meteorological warning on geological hazards in Shimian County, Sichuan Province[J]. Bulletin of Soil and Water Conservation, 2010, 30(6): 112-118. (in Chinese)
[26]	孙丹, 沈振中, 崔健健. 土工膜缺陷引起的土工膜防渗砂砾石坝渗漏数值模拟[J]. 水电能源科学, 2013, 31(4): 69-73. SUN Dan, SHEN Zheng-zhong, CUI Jian-jian. Seepage numerical simulation of geomembrane gravel dam caused by geomembrane defect[J]. Water Resources and Power, 2013, 31(4): 69-73. (in Chinese)
[27]	岑威钧, 和浩楠, 李邓军. 土工膜缺陷对土石坝渗流特性的影响及控制措施[J]. 水利水电科技进展, 2017, 37(3): 61-65, 71. CEN Wei-jun, HE Hao-nan, LI Deng-jun. Influence of geomembrane defect on seepage property of earth-rock dams and measures of seepage control[J]. Advances in Science and Technology of Water Resources, 2017, 37(3): 61-65, 71. (in Chinese)