Simple shear tests and mechanical properties of interface between extrusion wall and cushion layer of high concrete face rockfill dams

SUN Dawei; XU Xinyang; LI Nenghui; ZHANG Han; LI Denghua; XU Bing; HUANG Chengyou

doi:10.11779/CJGE20230839

Volume 47 Issue 2

Turn off MathJax

Article Contents

Abstract

References

Supplements

Chinese Journal of Geotechnical Engineering > 2025 > 47(2): 388-396. > DOI: 10.11779/CJGE20230839

SUN Dawei, XU Xinyang, LI Nenghui, ZHANG Han, LI Denghua, XU Bing, HUANG Chengyou. Simple shear tests and mechanical properties of interface between extrusion wall and cushion layer of high concrete face rockfill dams[J]. Chinese Journal of Geotechnical Engineering, 2025, 47(2): 388-396. DOI: 10.11779/CJGE20230839

Citation:

PDF (7548 KB)

Simple shear tests and mechanical properties of interface between extrusion wall and cushion layer of high concrete face rockfill dams

SUN Dawei^{1, 2,},
XU Xinyang^{1, 2},
LI Nenghui^{3, 4},
ZHANG Han^{1, 2, ,},
LI Denghua³,
XU Bing¹,
HUANG Chengyou^{1, 2}

1.
Key Laboratory of Geological Hazards on Three Gorges Reservoir Area (China Three Gorges University), Ministry of Education, Yichang 443002, China
2.
College of Civil Engineering and Architecture, China Three Gorges University, Yichang 443002, China
3.
Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China
4.
The National Key Laboratory of Water Disaster Prevention, Nanjing 210029, China

More Information

Received Date: August 29, 2023
Available Online: July 25, 2024

Graphical Abstract

Abstract

Abstract

The extrusion wall technology has been widely used in high concrete face rockfill dams in the 21th century. It is very important for dam safety to study the mechanical properties of the contact surface between the extrusion wall and the cushion layer for actually predicting the stress and deformation behavior of the face slab. At present, the simple shear tests and discrete element simulation investigations related to the contact face between the zigzag extrusion wall and the cushion layer are not available. Therefore, taking a 200 m-level dam as a reference, the large-scale simple shear tests of the contact surface between the extrusion wall and the cushion layer materials are carried out, and the mechanical properties of contact surfaces with zigzag and planar extrusion walls are compared and analyzed. The shear deformation and rotation characteristics and influencing factors of the cushion layer materials are analyzed by using the discrete element numerical simple shear tests for the first time. Compared with the planar extrusion wall, the zigzag extrusion wall causes the larger rotation magnitude of the blocks in the cushion materials and the larger deformation of the cushion materials near the contact surface. Based on the simple shear test results of the zigzag extrusion wall-cushion material contact surface, the contact surface model and the parameters are determined. It is helpful to improve the accuracy of stress and deformation calculation for face slab of high concrete face rockfill dams.
- rockfill dam,
- simple shear test,
- extrusion wall,
- discrete element,
- contact surface

FullText(HTML)

References (16)

References

[1]	贾金生, 郦能惠, 徐泽平, 等. 高混凝土面板坝安全关键技术研究[M]. 北京: 中国水利水电出版社, 2014. JIA Jinsheng, LI Nenghui, XU Zeping, et al. Study on Key Technology for the Safety of High CFRDs[M]. Beijing: China Water & Power Press, 2014. (in Chinese)
[2]	周小文, 龚壁卫, 丁红顺, 等. 砾石垫层—混凝土接触面力学特性单剪试验研究[J]. 岩土工程学报, 2005, 27(8): 876-880. doi: 10.3321/j.issn:1000-4548.2005.08.005 ZHOU Xiaowen, GONG Biwei, DING Hongshun, et al. Large-scale simple shear test on mechanical properties of interface between concrete face and gravel underlayer[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(8): 876-880. (in Chinese) doi: 10.3321/j.issn:1000-4548.2005.08.005
[3]	王艳丽, 饶锡保, 潘家军, 等. 砂砾石垫层料与混凝土面板接触面特性的大型单剪试验研究[J]. 岩土工程学报, 2019, 41(8): 1538-1544. doi: 10.11779/CJGE201908019 WANG Yanli, RAO Xibao, PAN Jiajun, et al. Mechanical behaviors of interface between sand-gravel cushion material and concrete face slab by large-scale simple shear tests[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(8): 1538-1544. (in Chinese) doi: 10.11779/CJGE201908019
[4]	张国栋, 罗雯, 杜鹏. 三峡库区典型土石混合体与混凝土接触面大型剪切试验研究[J]. 水利水电技术, 2014, 45(8): 149-152. doi: 10.3969/j.issn.1000-0860.2014.08.037 ZHANG Guodong, LUO Wen, DU Peng. Large shearing test on interface between typical earth-rock aggregate and concrete in Three Gorges Reservoir Area[J]. Water Resources and Hydropower Engineering, 2014, 45(8): 149-152. (in Chinese) doi: 10.3969/j.issn.1000-0860.2014.08.037
[5]	李登华. 面板堆石坝接触面试验研究和本构模型的建立[D]. 南京: 南京水利科学研究院, 2009. LI Denghua. Experimental Study on Contact Surface of Concrete Face Rockfill Dam and Establishment of Constitutive Model[D]. Nanjing: Nanjing Hydraulic Research Institute, 2009. (in Chinese)
[6]	张建民, 张嘎, 刘芳. 面板堆石坝挤压式边墙的概化数值模型及应用[J]. 岩土工程学报, 2005, 27(3): 249-253. doi: 10.3321/j.issn:1000-4548.2005.03.001 ZHANG Jianmin, ZHANG Ga, LIU Fang. A simplified equivalent numerical model of extrusion-sidewall for CFRD and its application[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(3): 249-253. (in Chinese) doi: 10.3321/j.issn:1000-4548.2005.03.001
[7]	张嘎, 张建民. 粗粒土与结构接触面统一本构模型及试验验证[J]. 岩土工程学报, 2005, 27(10): 1175-1179. doi: 10.3321/j.issn:1000-4548.2005.10.013 ZHANG Ga, ZHANG Jianmin. Unified modeling of soil-structure interface and its test confirmation[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(10): 1175-1179. (in Chinese) doi: 10.3321/j.issn:1000-4548.2005.10.013
[8]	张嘎, 张建民. 粗粒土与结构接触面三维本构关系及数值模型[J]. 岩土力学, 2007, 28(2): 288-292. doi: 10.3969/j.issn.1000-7598.2007.02.015 ZHANG Ga, ZHANG Jianmin. Three-dimensional model of interface between structure and coarse grained soil[J]. Rock and Soil Mechanics, 2007, 28(2): 288-292. (in Chinese) doi: 10.3969/j.issn.1000-7598.2007.02.015
[9]	LIU S H, WANG Y S, SHEN C M. DEM analysis of granular crushing during simple shearing[J]. Marine Georesources & Geotechnology, 2018, 36(5): 522-531.
[10]	XU D S, TANG Z Y, ZHANG L. Interpretation of coarse effect in simple shear behavior of binary sand-gravel mixture by DEM with authentic particle shape[J]. Construction and Building Materials, 2019, 195: 292-304. doi: 10.1016/j.conbuildmat.2018.11.059
[11]	ZHANG H, BOLDINI D, WANG L H, et al. Influence of block form on the shear behaviour of soft soil–rock mixtures by 3D block modelling approaches[J]. Rock Mechanics and Rock Engineering, 2022, 55(6): 3279-3300. doi: 10.1007/s00603-022-02795-x
[12]	XU W J, WANG S, ZHANG H Y, et al. Discrete element modelling of a soil-rock mixture used in an embankment dam[J]. International Journal of Rock Mechanics and Mining Sciences, 2016, 86: 141-156. doi: 10.1016/j.ijrmms.2016.04.004
[13]	姜仲洋, 李志华, 张聪. 基于颗粒流的新老混凝土加固构件轴压性能细观研究[J]. 应用力学学报, 2022, 39(2): 342-349. JIANG Zhongyang, LI Zhihua, ZHANG Cong. Meso-study on the axial compression performance of new and old concrete reinforced members based on particle flow[J]. Chinese Journal of Applied Mechanics, 2022, 39(2): 342-349. (in Chinese)
[14]	杨忠平, 蒋源文, 李诗琪, 等. 土石混合体—基岩界面剪切力学特性试验研究[J]. 岩土工程学报, 2020, 42(10): 1947-1954. doi: 10.11779/CJGE202010021 YANG Zhongping, JIANG Yuanwen, LI Shiqi, et al. Experimental study on shear mechanical properties of soil-rock mixture-bedrock interface[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(10): 1947-1954. (in Chinese) doi: 10.11779/CJGE202010021
[15]	DESAI C S, ZAMAN M M, LIGHTNER J G, et al. Thin-layer element for interfaces and joints[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 1984, 8(1): 19-43. doi: 10.1002/nag.1610080103
[16]	XU W J, HU L M, GAO W. Random generation of the meso-structure of a soil-rock mixture and its application in the study of the mechanical behavior in a landslide dam[J]. International Journal of Rock Mechanics and Mining Sciences, 2016, 86: 166-178. doi: 10.1016/j.ijrmms.2016.04.007

Supplements (3)

Supplements
Article Video
- Video Player is loading.
  Current Time 0:00
  Duration -:-
  Loaded: 0%
  Stream Type LIVE
  Remaining Time -:-
  
  1x
  Chapters
  descriptions off, selected
  captions settings, opens captions settings dialog
  captions off, selected
  This is a modal window.
  The media could not be loaded, either because the server or network failed or because the format is not supported.
  Beginning of dialog window. Escape will cancel and close the window.
  TextColorTransparency
  BackgroundColorTransparency
  WindowColorTransparency
  Font Size
  Text Edge Style
  Font Family
  End of dialog window.
  17-202502-G23-0839SP1
- Video Player is loading.
  Current Time 0:00
  Duration -:-
  Loaded: 0%
  Stream Type LIVE
  Remaining Time -:-
  
  1x
  Chapters
  descriptions off, selected
  captions settings, opens captions settings dialog
  captions off, selected
  This is a modal window.
  The media could not be loaded, either because the server or network failed or because the format is not supported.
  Beginning of dialog window. Escape will cancel and close the window.
  TextColorTransparency
  BackgroundColorTransparency
  WindowColorTransparency
  Font Size
  Text Edge Style
  Font Family
  End of dialog window.
  17-202502-G23-0839SP2
Other Related Supplements
- PDF format
  17-202502-G23-0839⼀⽂审稿意见与作者答复 Download(2066KB)