Key methods for non-cover-weight consolidation grouting of super high dam foundations

HUANG Wei; WEI Pengcheng

doi:10.16511/j.cnki.qhdxxb.2020.26.014

PDF(7022 KB)

Journal of Tsinghua University(Science and Technology) ›› 2020, Vol. 60 ›› Issue (7) : 582-588. DOI: 10.16511/j.cnki.qhdxxb.2020.26.014

SPECIAL SECTION: ROCK MECHANICS AND ENGINEERING PRATICE FOR LARGE HYDROPOWER STATIONS

Key methods for non-cover-weight consolidation grouting of super high dam foundations

{{article.zuoZhe_EN}}

Author information +

History +

Abstract

This study analyzed the interactions between dam foundation reinforcement and concrete pouring for the foundations of high arch dams without a heavy cover to consolidate the grouting. This study used the Wudongde dam foundation grouting as an example without a heavy cover for the consolidation grouting using the "table closed, shallow encryption, booster, strict monitoring, and little tube" method. This method not only eliminates the interference between the dam foundation consolidation grouting and the concrete pouring, but also guarantees the quality of the non-capped consolidation grouting. The results from the Wudongde Hydropower Station show that the first pass rate of the acoustic wave test was 100% and the water permeability after irrigation met the standard.

Key words

non-cover-weight / consolidation grouting / crack sealing / dam foundation / Wudongde Hydropower Station

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

HUANG Wei, WEI Pengcheng. Key methods for non-cover-weight consolidation grouting of super high dam foundations[J]. Journal of Tsinghua University(Science and Technology). 2020, 60(7): 582-588 https://doi.org/10.16511/j.cnki.qhdxxb.2020.26.014

References

[1] LIN P, WEI P C, WANG W H, et al. Cracking risk and overall stability analysis of Xulong high arch dam:A case study[J]. Applied Sciences, 2018, 8(12):2555-2563.
[2] LIN P, ZHOU Y N, LIU H Y, et al. Reinforcement design and stability analysis for large-span tailrace bifurcated tunnels with irregular geometry[J]. Tunnelling and Underground Space Technology, 2013, 38:189-204.
[3] LIN P, ZHOU W Y, LIU H Y. Experimental study on cracking, reinforcement, and overall stability of the Xiaowan super-high arch dam[J]. Rock Mechanics and Rock Engineering, 2015, 48(2):819-841.
[4] LIN P, LIU X L, ZHOU W Y, et al. Cracking, stability and slope reinforcement analysis relating to the Jinping dam based on a geomechanical model test[J]. Arabian Journal of Geosciences, 2015, 8(7):4393-4410.
[5] FAN Q X, WANG Z L, XU J R, et al. Study on deformation and control measures of columnar jointed basalt for Baihetan super-high arch dam foundation[J]. Rock Mechanics and Rock Engineering, 2018, 51(8):2569-2595.
[6] LIN P, SHI J, WEI P C, et al. Shallow unloading deformation analysis on Baihetan super-high arch dam foundation[J]. Bulletin of Engineering Geology and the Environment, 2019, 78(8):5551-5568.
[7] 周维垣, 林鹏, 周雅能, 等. 高拱坝基础大垫座及周边缝设置研究[J]. 岩石力学与工程学报, 2008, 27(10):1959-1967.ZHOU W Y, LIN P, ZHOU Y N, et al. Research on concrete socket and peripheral joint for high arch dam foundation[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(10):1959-1967. (in Chinese)
[8] 杨光伟. 无盖重纯压式灌浆在二滩水电站坝基固结灌浆中的应用[J]. 水电站设计, 2002, 18(1):94-98, 104.YANG G W. Application of uncovered heavy single pressure grouting in consdidation grouting for dam foundation of Ertan hydroelectic plant[J]. Design of Hydroelectric Power Station, 2002, 18(1):94-98, 104. (in Chinese)
[9] 彭爱华, 傅建, 刘加龙, 等. 无盖重固结灌浆在构皮滩水电站工程中的应用[J]. 贵州水力发电, 2009, 23(3):47-50.PENG A H, FU J, LIU J L, et al. Application of consolidation grouting without cover weight in Goupitan Hydropower Station project[J]. Guizhou Water Power, 2009, 23(3):47-50. (in Chinese)
[10] 曾纪全, 来结合, 全海. 溪洛渡水电站软弱岩带固结灌浆试验效果检测[J]. 岩石力学与工程学报, 2001, 20(S1):1851-1857.ZENG J Q, LAI J H, QUAN H. Effect inspection of grouting test for weak batholith in Xiluodu hydroelectric power station[J]. Chinese Journal of Rock Mechanics and Engineering, 2001, 20(S1):1851-1857. (in Chinese)
[11] 魏鹏程, 林鹏, 汪志林, 等. 白鹤滩特高拱坝坝基灌浆时机与抬动控制[J]. 清华大学学报(自然科学版), 2020, 60(7):557-565.WEI P C, LIN P, WANG Z L, et al. Foundation grouting times and uplift control of the Baihetan super-high arch dam[J]. Journal of Tsinghua University (Science & Technology), 2020, 60(7):557-565. (in Chinese)
[12] 李小帅, 张乐. 乌东德水电站枢纽工程BIM设计与应用[J]. 土木建筑工程信息技术, 2017, 9(1):7-13.LI X S, ZHANG L. Wudongde Hydropower Station BIM design and application[J]. Journal of Information Technology in Civil Engineering and Architecture, 2017, 9(1):7-13. (in Chinese)
[13] 黄灿新, 黄伟, 杨宁. 高坝建基岩体智能灌浆加固技术的应用[C]//水利水电地基与基础工程新技术. 北京, 中国:中国水利水电出版社, 2019:139-144.HUANG C X, HUANG W, YANG L. Application of intelligent grouting and reinforcement technology for high dam foundation[C]//New Technology of Water Conservancy and Hydropower Ground and Foundation Engineering. Beijing, China:China Water & Power Press, 2019:139-144. (in Chinese)
[14] 樊启祥, 黄灿新, 蒋小春, 等. 水电工程水泥灌浆智能控制方法与系统[J]. 水利学报, 2019, 50(2):165-174.FAN Q X, HUANG C X, JIANG X C, et al. Intelligent grouting control method and system for hydropower engineering[J]. Journal of Hydraulic Engineering, 2019, 50(2):165-174. (in Chinese)
[15] 黄伟, 段海波. 裂隙封闭材料在陡倾岩体无盖重固结灌浆中的应用[C]//地基与基础工程技术创新与发展(2017)——第14次全国水利水电地基与基础工程学术研讨会论文集. 长沙, 中国:中国水利学会地基与基础工程专业委员会, 2017:316-321.HUANG W, DUAN H B. Application of crack closed material in non-cover-weight consolidation grouting on steep rock mass[C]//Technological Innovation and Development of Ground and Foundation Engineering. Changsha, China:China Water & Power Press, 2017:316-321. (in Chinese)
[16] 丁刚, 施华堂. 乌东德水电站坝基裸岩无盖重固结灌浆试验研究[C]//地基与基础工程技术创新与发展(2017)——第14次全国水利水电地基与基础工程学术研讨会论文集. 长沙, 中国:中国水利学会地基与基础工程专业委员会, 2017:298-305.DING G, SHI H T. Experimental research on uncovered consolidation grouting of bare rock at dam foundation of Wudongde Hydropower Station[C]//Technological Innovation and Development of Ground and Foundation Engineering. Changsha, China:China Water & Power Press, 2017:298-305. (in Chinese)