|Table of Contents|

Evaluation method for ultimate bearing capacity of lightweight covered rotary cable ground anchorage(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2026年01期
Page:
142-152
Research Field:
桥梁与隧道工程
Publishing date:

Info

Title:
Evaluation method for ultimate bearing capacity of lightweight covered rotary cable ground anchorage
Author(s):
CHEN Yu1;  ZHANG Jie-sheng2;  WANG Xiao-ming1*;  Li Bo2;  WU Run-han1;  LI Chen-xi1
(1. Institute of Bridge Engineering Chang'an University, Xi'an 710064, Shaanxi, China; 2. The First Engineering Co., Ltd. of CTCE Group, Hefei 230041, Anhui, China)
Keywords:
bridge engineering;  lightweight covered rotary cable ground anchorage;  finite element method;  failure mode;  ultimate bearing capacity
PACS:
U443.24
DOI:
10.19721/j.cnki.1671-8879.2026.01.011
Abstract:
In order to improve the safety and durability performance of lightweight covered rotary cable ground anchorage(rotary cable anchorage), possible failure modes and corresponding ultimate bearing capacity of revolving cable anchorage were explored based on the world's first single tower single span revolving cable suspension bridge project. The rotary cable anchorage does not need to bear the pulling force of the main cable, which can significantly reduce the volume of the anchorage. However, the light overlay design makes it easier to slip with the bedrock under horizontal tension, and is greatly affected by the initial stress of the foundation. Based on the mechanical characteristics of the rotary cable anchorage, three main failure modes were identified, including the cracking failure of the tooth ridge of the rotary cable anchorage foundation, the sliding instability of the anchorage-foundation contact interface and the shear failure of the foundation. Based on the field geological survey data, a refined model for the contact interface between the anchorage and the foundation of the rotary cable considering the interference of the initial ground stress and the evaluation framework of the ultimate bearing capacity of the rotary cable anchorage were established. A multi-scale model of the entire bridge was established based on the engineering support, and the accuracy of the rotary cable anchorage model was verified using on-site measured data. The results show that the cracking failure of the tooth ridge of the rotary cable anchorage foundation is the control failure mode, and its ultimate bearing capacity is only 1.87 times of the design load. When the load reaches 2 times of the design load, slippage may occur at the contact surface of the rotary cable anchorage-foundation and the soil in front of the rotary cable anchorage. When the load is 2.5 times of the design load, the plastic zone of the foundation develops rapidly, which may lead to shear failure. Therefore, it is recommended to improve the service life of the rotary cable anchor by optimizing the arrangement of the tooth ridge, increasing the friction coefficient between the anchorage and the bedrock, or reducing the demand of the anchorage for the bearing capacity of the bedrock.2 tabs, 11 figs, 26 refs.

References:

[1] 王东英,汤 华,尹小涛,等.隧道锚抗拔承载力及安全性评估方法[J].中国公路学报,2018,31(9):95-103.
WANG Dong-ying, TANG Hua, YIN Xiao-tao, et al. Methods for evaluating the uplift bearing capacity and safety of tunnel anchors[J]. China Journal of Highway and Transport, 2018, 31(9): 95-103.
[2]XIONG W, JIANG C, WANG T, et al. Safety-margin design for gravity-type anchorage of suspension bridges over 2 000 m long based on target reliability[J]. Journal of Bridge Engineering, 2024, 29(3): 04024003.
[3]LIU X, SHAO G, HUANG J, et al. Stability analysis of gravity anchorage: A case study of Taizhou Yangtze River Bridge[J]. European Journal of Environmental and Civil Engineering, 2021, 25(6): 1002-1024.
[4]李小刚,武守信,冯 君.基于极限分析理论的悬索桥重力锚垂直齿坎抗滑力分析[J].岩土力学,2025,46(8):2547-2558.
LI Xiao-gang, WU Shou-xin, FENG Jun. Analysis of slide-resistance of vertical subgrade steps for gravity-type anchorages of suspension bridges based on limit analysis theory[J]. Rock and Soil Mechanics, 2025, 46(8): 2547-2558.
[5]刘 渊,冯 君,李小刚,等.悬索桥新型组合式重力锚承载机理分析[J].地下空间与工程学报,2022,18(增1):187-193.
LIU Yuan, FENG Jun, LI Xiao-gang, et al. Analysis of bearing mechanism of new combined gravity anchor for suspension bridge[J]. Chinese Journal of Underground Space and Engineering, 2022, 18(S1): 187-193.
[6]张浦阳,董宏季,乐丛欢,等.海上风机嵌岩桩水平承载特性有限元分析[J].哈尔滨工程大学学报,2021,42(1):132-138.
ZHANG Pu-yang, DONG Hong-ji, LE Cong-huan, et al. Finite element analysis of horizontal bearing characteristics of rock-socketed piles for offshore wind turbines[J]. Journal of Harbin Engineering University, 2021, 42(1): 132-138.
[7]王志诚,闫永伦,徐国平,等.棋盘洲长江公路大桥主桥总体设计[J].桥梁建设,2022,52(3):106-112.
WANG Zhi-cheng, YAN Yong-lun, XU Guo-ping, et al. Overall design of main bridge of Qipanzhou Changjiang River Highway Bridge[J]. Bridge Construction, 2022, 52(3): 106-112.
[8]别业山,舒思利,万田保.温州瓯江北口大桥北锚碇设计[J].桥梁建设,2022,52(2):97-103.
BIE Ye-shan, SHU Si-li, WAN Tian-bao. North anchorage design of Oujiang North Estuary Bridge in Wenzhou[J]. Bridge Construction, 2022, 52(2): 97-103.
[9]丁德豪,朱 玉,林 阳.独塔地锚回转缆悬索桥设计关键技术[J].桥梁建设,2023,53(4):109-115.
DING De-hao, ZHU Yu, LIN Yang. Key technologies for the design of single tower anchor rotating cable suspension bridge[J]. Bridge Construction, 2023, 53(4): 109-115.
[10]薛有利,何博文,林 阳.黄河三峡大桥桥型方案比选[J].桥梁建设,2023,53(增1):134-139.
XUE You-li, HE Bo-wen, LIN Yang. Comparison and selection of bridge type plans for the Yellow River Three Gorges Bridge[J]. Bridge Construction, 2023, 53(S1): 134-139.
[11]熊晓荣,汤 华,廖明进,等.隧道锚“楔形效应”的室内模型试验研究[J].岩土力学,2018,39(增1):181-190.
XIONG Xiao-rong, TANG Hua, LIAO Ming-jin, et al. Laboratory model test study on “wedge effect” of tunnel anchor[J]. Rock and Soil Mechanics, 2018, 39(S1): 181-190.
[12]尹小涛,严 飞,周 磊,等.悬索桥重力式锚碇结构-地基联合承载机制[J].交通运输工程学报,2017,17(2):1-11.
YIN Xiao-tao, YAN Fei, ZHOU Lei, et al. Combined bearing mechanism of gravity anchorage structure-foundation of suspension bridge[J]. Journal of Traffic and Transportation Engineering, 2017, 17(2): 1-11.
[13]张正一,王朝辉,张 廉,等.中国绿色公路建设与评估技术[J].长安大学学报(自然科学版),2018,38(5):76-86.
ZHANG Zheng-yi, WANG Chao-hui, ZHANG Lian, et al. Green highway construction and evaluation technology in China[J]. Journal of Chang'an University(Natural Science Edition), 2018, 38(5): 76-86.
[14]张重远,吴满路,陈群策,等.地应力测量方法综述[J].河南理工大学学报(自然科学版),2012,31(3):305-310.
ZHANG Chong-yuan, WU Man-lu, CHEN Qun-ce, et al. Review of in-situ stress measurement methods[J]. Journal of Henan Polytechnic University(Natural Science Edition ), 2012, 31(3): 305-310.
[15]王东英,汤 华,尹小涛,等.基于简化力学模型的隧道锚极限承载力估值公式[J].岩土力学,2020,41(10):3405-3414.
WANG Dong-ying, TANG Hua, YIN Xiao-tao, et al. Ultimate bearing capacity estimation formula of tunnel anchor based on simplified mechanical model[J]. Rock and Soil Mechanics, 2020, 41(10): 3405-3414.
[16]JIANG N, WANG D, FENG J, et al. Bearing mechanism of a tunnel-type anchorage in a railway suspension bridge[J]. Journal of Mountain Science, 2021, 18(8): 2143-2158.
[17]鲁志强,陈 贺,张永华,等.基于数值仿真的重力式锚碇承载机制研究[J].公路交通科技,2021,38(8):67-74.
LU Zhi-qiang, CHEN He, ZHANG Yong-hua, et al. Research on bearing mechanism of gravity anchorage based on numerical simulation[J]. Journal of Highway and Transportation Research and Development, 2021, 38(8): 67-74.
[18]SHI X F, XIE P F, MA H Y, et al. Fretting behavior of steel strands in a U-shaped anchoring system[J]. Engineering Structures, 2020, 206: 110177.
[19]宋 鑫,邱文亮.万新大桥主桥结构设计和施工控制[J].公路,2005(4):66-69.
SONG Xin, QIU Wen-liang. Structural design and construction control of Wanxin Bridge[J]. Highway, 2005(4): 66-69.
[20]MA Z Q, HU K, SHI X F, et al. The Second Wuhu Yangtze River Bridge: A cable-stayed bridge with a U-shape anchoring system[J]. Structural Engineering International, 2021, 33: 1-6.
[21]孙武云,范新荣,王小明,等.高烈度山区中等跨径连续梁桥合理抗震结构体系[J].长安大学学报(自然科学版),2021,41(2):125-134.
SUN Wu-yun, FAN Xin-rong, WANG Xiao-ming. et al. Seismic performance of mediumspan continuous beam bridges in high intensity mountainous areas based on different seismic structural systems[J]. Journal of Chang'an University(Natural Science Edition), 2021, 41(2): 125-134.
[22]冯 君,张俊云,朱 明,等.软土地层高承台桥梁群桩基础横向承载特性研究[J].岩土力学,2016,37(增2):94-104.
FENG Jun, ZHANG Jun-yun, ZHU Ming, et al. Study on lateral bearing characteristics of pile group foundation of high cap bridge in soft soil layer[J]. Rock and Soil Mechanics, 2016, 37(S2): 94-104.
[23]江昕宇.大跨度悬索桥嵌桩式重力锚碇承载机理和稳定性研究[D].成都:西南交通大学,2022.
JIANG Xin-yu. Study on bearing mechanism and stability of pile-embedded gravity anchorage of long-span suspension bridge[D]. Chengdu: Southwest Jiaotong University, 2022.
[24]张 彧,罗 阳,徐安花,等.含水量与抗剪强度关系影响下高盐量盐渍土路基边坡稳定性[J].长安大学学报(自然科学版),2020,40(3):22-32.
ZHANG Yu, LUO Yang, XU An-hua, et al. Slope stability of saline soil subgrade with high salt content under the influence of the relationship between water content and shear strength[J]. Journal of Chang'an University(Natural Science Edition ), 2020,40(3): 22-32.
[25]DAHAL B K, REGMI S, PAUDYAL K, et al. Enhancing deep excavation optimization: Selection of an appropriate constitutive model[J]. Civil Engineering, 2024, 5(3): 785-800.
[26]张茂础,崔 臻,盛 谦,等.基于离散元方法的锚碇岩砼接触力学性质研究[J].地下空间与工程学报,2020,16(1):169-176.
ZHANG Mao-chu, CUI Zhen, SHENG Qian, et al. Study on contact mechanical properties of anchorage rock concrete based on discrete element method[J]. Chinese Journal of Underground Space and Engineering, 2020, 16(1): 169-176.

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Last Update: 2026-02-20