点蚀对煤矿井架箱型梁力学性能的影响分析

周品; 刘硕; 卢卓群; 金立兵; 朱宏平; 屈星宇; 崔伟平

doi:10.13206/j.gjgS26080301

点蚀对煤矿井架箱型梁力学性能的影响分析

doi: 10.13206/j.gjgS26080301

1. 河南工业大学土木工程学院, 郑州 450001;
2. 华中科技大学土木与水利工程学院, 武汉 430074;
3. 河南工大设计研究院有限公司, 郑州 450001

基金项目:

河南省重点研发与推广专项项目（232102320014）；河南工业大学拓新团队培育项目（2024TXTD15）；河南工大设计研究院有限公司科研项目（10326111）。

详细信息

作者简介:
周品，博士，讲师，主要从事结构健康监测研究。Email：zpin2020109@163.com

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出版历程
- 收稿日期: 2026-08-03

Effects of Pitting Corrosion on Mechanical Properties of Box Girders in Coal Mine Headframes

1. School of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China;
2. School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
3. Henan University of Technology Design and Research Academy Co., Zhengzhou 450001, China

摘要

摘要: 天轮平台梁是煤矿立井井架中的关键受力构件，为揭示随机萌生、局部深透的点蚀损伤对其力学性能的影响机制，对河南某煤矿立井井架箱型截面天轮平台梁进行研究。基于ANSYS软件建立了结构的有限元分析模型，通过试验数据验证了数值模型的有效性。在此基础上，探讨了点蚀坑深度、宽度及径深比对应力集中系数的影响规律，进一步研究了点蚀坑宽度及其沿梁长度和宽度方向的分布形式对结构极限承载力的影响机理。结果表明：结构应力集中系数受点蚀坑几何参数影响较大；点蚀坑区域的局部刚度随宽度的增加而增大；结构处于弹性阶段时，点蚀坑在梁长度和宽度方向的分布位置对结构刚度影响较小；进入塑性阶段后，点蚀坑在宽度的位置变化对结构极限承载力影响相对较大，损失率最高可达3.32%，约1042 kN。
- 天轮平台梁 /
- 点蚀 /
- 数值模型 /
- 参数分析 /
- 力学性能
Abstract: The sheave platform beam is a key load-bearing component in coal mine vertical shaft headframes. To reveal the influence mechanism of randomly initiated and locally penetrating pitting damage on its mechanical properties， a box-section sheave platform beam of a vertical shaft headframe in a Henan coal mine was investigated. Based on ANSYS software， a finite element analysis model of the structure was established， and the validity of the numerical model was verified against experimental data. On this basis， the influence of the depth， width， and aspect ratio of pitting pits on the stress concentration factor was discussed， and the influence mechanism of pit width and its distribution along the length and width directions of the beam on the ultimate bearing capacity of the structure was further studied. The results showed that the stress concentration factor of the structure was greatly affected by the geometric parameters of the pitting pits； the local stiffness of the pitted area increased with increasing pit width； when the structure was in the elastic stage， the distribution positions of the pitting pits along the length and width directions of the beam had a minor impact on the structural stiffness； after entering the plastic stage， the change in pitting pit position along the width direction had a relatively larger impact on the ultimate bearing capacity of the structure， with the maximum loss rate reaching 3.32%， corresponding to approximately 1042 kN.
- sheave platform beam /
- pitting corrosion /
- numerical model /
- parametric analysis /
- mechanical properties

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参考文献(25)

[1]	刘矿. 煤矿钢井架结构设计要点探讨[J]. 煤炭工程，2024，56（9）:31-35.
[2]	曹海通. 箱型截面钢井架天轮平台梁数值计算方法研究[D]. 徐州:中国矿业大学，2015.
[3]	Wang D，Li Y，Li Z，et al. Corrosion behaviour and mechanical property degradation of Q355b steel under coupled environmental loads[J]. KSCE Journal of Civil Engineering，2025，29（6）:100119.
[4]	Liu Y，Peng J，Lin Z，et al. The effect of random pitting on the degradation of mechanical behavior of Q345C steel[J]. Construction and Building Materials，2024，449:138524.
[5]	吴忧，王仁华，居建军. 腐蚀船体板的几何形貌和力学性能研究[J/OL]. 海洋工程，2025[ 2025-12-12]. https://link.cnki.net/urlid/32.1423.P.20251211.1624.004.
[6]	Sheng J，Xia J. Effect of simulated pitting corrosion on the tensile properties of steel[J]. Construction and Building Materials，2017，131:90-100.
[7]	张浩，乔文靖，杨帆，等. 强腐蚀桥梁钢Q345的J-C本构模型及数值模拟[J]. 郑州大学学报（工学版），2021，42（6）:99-104.
[8]	Andisheh K，Scott A，Palermo A. Modeling the influence of pitting corrosion on the mechanical properties of steel reinforcement[J]. Materials and Corrosion，2016，67（11）:1220-1234.
[9]	林首屹. 海洋点蚀钢材性及损伤结构的极限强度研究[D]. 镇江:江苏科技大学，2021.
[10]	桑笑晗，杨霞，李杨，等. 腐蚀钢柱轴压极限强度损失计算方法[J/OL]. 土木与环境工程学报（中英文），2024[ 2024-11-20]. https://link.cnki.net/urlid/50.1218.TU.20241119.1424.002.
[11]	Jiang X，Soares C G. Ultimate capacity of rectangular plates with partial depth pits under uniaxial loads[J]. Marine Structures，2012，26（1）:27-41.
[12]	Jiang X，Soares C G. A closed form formula to predict the ultimate capacity of pitted mild steel plate under biaxial compression[J]. Thin-Walled Structures，2012，59:27-34.
[13]	彭建新，方兴，周亚栋. 随机点蚀对Q550E钢试件抗拉力学性能的影响[J]. 公路交通科技，2023，40（8）:79-88.
[14]	刘德让，刘刚，唐鑫彤，等. 考虑点蚀损伤的系泊锚链极限强度分析[J]. 中国造船，2024，65（1）:75-85.
[15]	艾凡凯，张华，余剑雄，等. 随机点蚀作用下大开口箱型梁的垂向弯曲剩余强度研究[J]. 中国舰船研究，2026，21（1）:217-226.
[16]	Liu M. Finite element analysis of pitting corrosion on mechanical behavior of E690 steel panel[J]. Anti-Corrosion Methods and Materials，2022，69（4）:351-361.
[17]	Shojai S，Schaumann P，Brömer T. Probabilistic modelling of pitting corrosion and its impact on stress concentrations in steel structures in the offshore wind energy[J]. Marine Structures，2022，84:103232.
[18]	周少博. 随机点蚀对钢梁极限承载力的影响研究[D]. 大连:大连理工大学，2023.
[19]	李航宇. Q235B钢材锈蚀疲劳寿命及疲劳机理的试验研究及理论剖析[D]. 太原:太原理工大学，2020.
[20]	陈跃良，张柱柱，张勇，等. 冲击载荷下点蚀损伤对30CrMnSiNi2A钢应力集中影响的数值模拟研究[J]. 重庆理工大学学报（自然科学版），2020，34 （11）:69-78.
[21]	Ernst P，Newman R C. Pit growth studies in stainless steel foils. I. Introduction and pit growth kinetics[J]. Corrosion Science，2002，44（5）:927-941.
[22]	Rybalka K V，Shaldaev V S，Beketaeva L A，et al. Development of pitting corrosion of stainless steel 403 in sodium chloride solutions[J]. Russian Journal of Electrochemistry，2010，46（2）:196-204.
[23]	Silva J W J，Bustamante A G，Codaro E N，et al. Morphological analysis of pits formed on Al 2024-T3 in chloride aqueous solution[J]. Applied Surface Science，2004，236（1/2/3/4）:356-365.
[24]	肖绪好. 在役海洋石油井架结构损伤多尺度模拟及力学性能研究[D]. 大庆:东北石油大学，2022.
[25]	任菲，王得玺，时桂芹，等. 含有点蚀故障的人字行星齿轮传动系统动态分析[J]. 郑州大学学报（工学版），2022，43（2）:71-77.