Numerical Simulation on the Excavation and Support of High andSteep Slope of Cable-crane Platform of Jinping Hydropower Station

ZHAO Chuan; FU Cheng-hua; HE Huan; ZHONG Xue-mei; ZHOU Dan

doi:10.3969/j.issn.1001-5485.2015.08.017

PDF(3241 KB)

Journal of Changjiang River Scientific Research Institute ›› 2015, Vol. 32 ›› Issue (8) : 94-98. DOI: 10.3969/j.issn.1001-5485.2015.08.017

ROCK SOIL ENGINEERING

Numerical Simulation on the Excavation and Support of High andSteep Slope of Cable-crane Platform of Jinping Hydropower Station

ZHAO Chuan^1,2,FU Cheng-hua^1,2,HE Huan²,ZHONG Xue-mei²,ZHOU Dan²

Author information +

History +

Abstract

The process of stepped excavation and support of the high-steep slope of cable-crane platform of Jinping hydropower station was simulated using finite element method. The effects of single-stage excavation height, strength parameters of rock mass, and supporting time on the deformation and stability of the slope were analysed. Results indicate that the deformation and safety factor are greatly influenced by the strength parameters of rock mass; when the rock mass is of good conditions, the height of single-stage excavation and the supporting time have small impacts on the deformation and safety factor, but when in poor conditions, the effects are significant, and larger height of single-stage excavation will lead to more obvious support effect. The research results provide reference for the optimization and construction of excavation and supporting scheme of high and steep slope engineering.

Key words

Jinping Hydropower Station / high and steep slope / safety factor / excavation height / supporting time / numerical simulation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZHAO Chuan,FU Cheng-hua,HE Huan,ZHONG Xue-mei,ZHOU Dan. Numerical Simulation on the Excavation and Support of High andSteep Slope of Cable-crane Platform of Jinping Hydropower Station[J]. Journal of Changjiang River Scientific Research Institute. 2015, 32(8): 94-98 https://doi.org/10.3969/j.issn.1001-5485.2015.08.017

References

[1] 郑颖人,陈祖煜,王恭先,等. 边坡与滑坡工程治理. 北京:人民交通出版社,2007. (ZHENG Ying-ren, CHEN Zu-yu, WANG Gong-xian, et al. Engineering Treatment of Slope and Landslide. Beijing: China Communications Press, 2007. (in Chinese))
邹丽春,王国进,汤献良,等.复杂高边坡整治理论与工程实践.北京:中国水利水电出版社, 2006. (ZOU Li-chun, WANG Guo-jin, TANG Xian-liang, et al. Theory and Engineering Practice on Treatment of Complicated High Slope. Beijing: China Water Power Press, 2006.(in Chinese))
谢国海,章广成,杨昌斌.边坡分级开挖过程的动态模拟.土工基础,2007,21(3):54-56. (XIE Guo-hai, ZHANG Guang-cheng, YANG Chang-bin. Achievement of Dynamic Simulation of Excavation of Slope in a Hydropower Station.Soil Engineering and Foundation, 2007, 21(3):54-56. (in Chinese))
易长平,卢文波,许红涛,等.岩体开挖过程中初始应力的动态卸荷效应研究. 岩石力学与工程学报,2005,24(增1):4750-4753. (YI Chang-ping, LU Wen-bo, XU Hong-tao, et al. Study on Effects of Dynamic Unloading on Initial Stress During Rock Excavation. Chinese Journal of Rock Mechanics and Engineering,2005,24(Sup.1):4750-4753.(in Chinese))
孙开畅,胡昌顺. 溪洛渡水电站拱肩槽及进水口高边坡稳定性研究.长江科学院院报,2007, 24(2): 17-21. (SUN Kai-chang, HU Chang-shun. Study on High Rock Slope for Xiluodu Hydropower Stations Spandrel Groove and Water Inlet. Journal of Yangtze River Scientific Research Institute, 2007, 24(2): 17-21.(in Chinese))
熊斌.基于ANSYS软件的边坡开挖模拟和稳定性评价.探矿工程(岩土钻掘工程),2009,36(2):64-67. (XIONG Bin. Simulation of Slope Excavation and Analysis on Its Stability Based on ANSYS Software. Exploration Engineering (Drilling and Tunneling), 2009, 36(2): 64-67. (in Chinese))
杨双锁,张百胜.锚杆对岩土体作用的力学本质.岩土力学,2003,24(增):279-282. (YANG Shuang-suo, ZHANG Bai- sheng. Influence of Bolt Action Force on the Mechanical Property of Rocks . Rock and Soil Mechanics, 2003, 24(Sup): 279-282.(in Chinese))
陈健,盛谦,高锋.构皮滩工程高边坡开挖数值模拟分析及稳定性评价.长江科学院院报,1996,13(增): 31-33. (CHEN Jian, SHENG Qian, GAO Feng. Numerical Simulation and Stability Analysis of High Slope Excavation for Goupitan Project. Journal of Yangtze River Scientific Research Institute, 1996, 13(Sup.): 31-33. (in Chinese))
郑颖人,赵尚毅,张鲁渝.用有限元强度折减法进行边坡稳定分析.中国工程科学,2002,4(10):57-62. (ZHENG Ying-ren, ZHAO Shang-yi, ZHANG Lu-yu. Slope Stability Analysis by Strength Reduction FEM. Engineering Science, 2002, 4(10): 57-62. (in Chinese))
张奇华,杜俊慧,胡进华. 某水电站右坝肩边坡岩体稳定性研究.长江科学院院报,2006, 23(4): 32-35. (ZHANG Qi-hua, DU Jun-hui, HU Jin-hua. Study on Stability of Rock Mass of Right Dam Abutment Slope of Some Hydroelectric Station. Journal of Yangtze River Scientific Research Institute, 2006, 23(4): 32-35. (in Chinese))