川西山区崩塌作用下输电杆塔动力响应特征

doi:10.3969/j.issn.1008-0198.2026.04.018

湖南电力 ›› 2026, Vol. 46 ›› Issue (4): 136-143.doi: 10.3969/j.issn.1008-0198.2026.04.018

川西山区崩塌作用下输电杆塔动力响应特征

任志超¹, 曾文慧¹, 任光明², 沈国卓², 唐杨¹

1.国网四川省电力公司经济技术研究院,四川成都 610041;
2.地质灾害防治与地质环境保护全国重点实验室（成都理工大学）,四川成都 610059

收稿日期:2026-04-23 修回日期:2026-05-28 出版日期:2026-08-25 发布日期:2026-09-11
通信作者: 任光明（1964）,男,教授,从事工程地质与岩土工程研究工作。
作者简介:任志超（1965）,男,博士,高级工程师,从事能源电力规划研究工作。
基金资助:
国家电网有限公司科技项目(5108-202218280A-2-322-XG)

Dynamic Response Characteristics of Transmission Towers Under Collapse Action in the Western Sichuan Mountain Area

REN Zhichao¹, ZENG Wenhui¹, REN Guangming², SHEN Guozhuo², TANG Yang¹

1. State Grid Sichuan Electric Power Company Economic Technology Research Institute, Chengdu 610041, China;
2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), Chengdu 610059, China

Received:2026-04-23 Revised:2026-05-28 Online:2026-08-25 Published:2026-09-11

摘要/Abstract

摘要： 以川西山区为研究区域,通过现场调查与统计分析,梳理区内地质崩塌灾害的分布特征,归纳出崩塌与输电杆塔相互作用的两种模式：冲砸与牵引,并建立相应的地质力学模型,采用数值计算方法详细模拟崩塌落石冲击作用下输电杆塔及协同体系的动力响应机理,揭示冲击作用下输电杆塔破坏阈值及增长桩防护能力。结果表明,该动力响应过程可分为弹塑性压入和卸荷回弹两个阶段;输电塔的破坏阈值约为96 kJ;增长桩的损伤模式由低冲击能量下表面局部剥蚀向高冲击能量下的贯穿性侵彻转变,能量耗散机制由塑性变形为主逐渐过渡为脆性断裂为主;增长桩的桩顶位移变化受控于混凝土失效单元耗能及钢筋参与作用的各自占比,其抗冲击能量可达1 500 kJ。增长桩可作为一种防治措施,应用于输电杆塔沿线失稳后运动速度较低及弹跳高度有限的崩塌落石,保障输电工程的安全稳定运行。

关键词: 崩塌, 输电杆塔, 动力响应, 增长桩, 防治措施

Abstract: Taking the mountainous area of western Sichuan as the study area, this study identifies the distribution characteristics of geological collapse hazards in the region through field investigation and statistical analysis, summarizes two modes of interaction between collapses and transmission towers-impact-collision and traction-and establishes corresponding geomechanical models. Numerical simulation is used to investigate in detail the dynamic response mechanisms of transmission towers and their coupled systems under rockfall impact, revealing the damage threshold of transmission towers and the protective capacity of growth piles under impact. The results show that the dynamic response process can be divided into two stages: elastoplastic indentation and unloading rebound. The damage threshold of the transmission tower is approximately 96 kJ. The damage mode of growth piles changes from localized surface spalling under low impact energy to penetrative perforation under high impact energy, and the energy dissipation mechanism gradually transitions from plastic deformation-dominated to brittle fracture-dominated. The variation in pile-top displacement of growth piles is governed by the respective proportions of energy dissipated by failed concrete elements and the participation of steel reinforcement, and their impact energy capacity can reach 1 500 kJ. Growth piles can be used as a mitigation measure for collapse-induced rockfalls with relatively low post-failure velocity and limited bounce height along transmission line corridors, ensuring the safe and stable operation of transmission engineering.

Key words: collapse, transmission tower, dynamic response, growth pile, prophylactico-therapeutic measures

中图分类号:

TM754

任志超, 曾文慧, 任光明, 沈国卓, 唐杨. 川西山区崩塌作用下输电杆塔动力响应特征[J]. 湖南电力, 2026, 46(4): 136-143.

REN Zhichao, ZENG Wenhui, REN Guangming, SHEN Guozhuo, TANG Yang. Dynamic Response Characteristics of Transmission Towers Under Collapse Action in the Western Sichuan Mountain Area[J]. Hunan Electric Power, 2026, 46(4): 136-143.

参考文献

[1] 程永锋,丁士君,赵斌滨,等. 输变电工程滑坡灾害危险和风险性评估方法研究[J]. 中国农村水利水电,2015(6):148-152.
[2] 范荣全,董斌,李源亮,等. 川西地区输变电工程地质环境质量评价[J]. 科学技术与工程,2020,20(2):544-549.
[3] 张乐,陈沛,向波,等.基于运动学三维模拟的山区公路崩塌灾害损伤评价及治理[J]. 地质科技通报,2025,44(2):104-115.
[4] 龚学强,蹇代君,胡卸文,等. 九寨沟强震区熊猫海—五花海段震裂山体发育特征及崩塌动力学分析[J]. 灾害学,2024,39(4):192-199.
[5] 梁祎霖,张杰,字忠,等. 高陡坡落石特征及崩落运动轨迹模拟分析[J]. 水利水电技术(中英文),2025,56(S2):656-662.
[6] 熊小辉,白永健,铁永波,等. 川西南喜德县地质灾害发育特征及其沉积-构造孕灾规律研究[J]. 水文地质工程地质,2025,52(3):197-210.
[7] 刘松涛,高杨,李滨,等. 贵州纳雍龙家岩脚高位崩塌动力过程模拟研究[J/OL]. 水文地质工程地质,1-15. (2025-12-04)[2026-02-17]. https://link.cnki.net/urlid/11.2202.P.20251204.1346.001.
[8] 姚波,黄胜东,王朝阳,等. 基于三维倾斜摄影和RocFall的危岩体稳定性评价及防治:以昆明西山山邑村为例[J]. 中国地质灾害与防治学报,2026,37(1):100-112.
[9] Linping Y,Zhiyong W,Hong J,et al.Rocket motion simulation analysis and risk assessment of the tower for transmission line[J]. IET Conference Proceedings,2021,2020(1):2150-2154.
[10] Yue L P,Jiang F,Jiang H,et al.Dynamic responses of 500-kV transmission line towers under impact force of rockfall in a mountainous area[J]. Frontiers in Mechanical Engineering,2022,8:927263.
[11] Bian M H,Peng J N,Qin S L,et al.A simplified analytical method for lateral dynamic responses of a transmission tower due to rockfall impact[J]. Frontiers in Materials,2023,10:1229327.
[12] Yang J G,Li S,Zhou C G,et al.Response of transmission tower guy wires under impact: theoretical analysis and finite element simulation[J]. Applied Sciences,2026,16(1):123.
[13] 王林峰,唐红梅,陈洪凯. 落石冲击作用下公路破坏机理研究[J]. 人民长江,2012,43(5):64-67.
[14] 张东亮,黄达. 落石冲击旁山填方路基边坡破坏数值模拟[J]. 地下空间与工程学报,2017,13(S1):135-142.
[15] 张山,张俊发,陶磊,等. S形钢龙骨-夹芯板防护层的落石冲击缓冲性能试验研究[J]. 振动与冲击,2017,36(24):148-155.
[16] 胡卸文,梅雪峰,杨瀛,等. 落石冲击荷载作用下的桩板拦石墙结构动力响应[J]. 工程地质学报,2019,27(1):123-133.
[17] 金云涛,余志祥,骆丽茹,等. 引导式柔性网系统防落石冲击耗能机制研究[J]. 振动与冲击,2021,40(20):177-185,192.
[18] 马显东,周剑,张路青,等. 基于崩塌滚石运动特征的防护网动态响应规律[J]. 地球科学,2022,47(12):4559-4573.
[19] 刘奇,刘先峰,李建国,等. 锚索肋板式拦石墙结构稳定性及动力响应研究[J]. 振动工程学报,2023,36(2):427-434.
[20] 李源亮. 川西地区地质灾害危险性及工程地质环境质量对输变电工程规划影响研究[D]. 成都:成都理工大学,2018.
[21] 钟传欣. 基于RocFall模拟斜坡地形对落石运动特性的影响[J]. 中国金属通报,2020(8):148-150.

川西山区崩塌作用下输电杆塔动力响应特征

Dynamic Response Characteristics of Transmission Towers Under Collapse Action in the Western Sichuan Mountain Area

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