STUDY ON ANTI-GROUND-DEFORMATION CAPACITY OF TRANSMISSION TOWER LINE SYSTEMS IN MINING AREAS IN DIFFERENT DIRECTIONS SUBJECTED TO HORIZONTAL GROUND DEFORMATION

JIA Jianjun; LIU Chunkui; JIE Lianbin; SHU Qianjin; ZHONG Chongshuo; YUAN Guanglin

doi:10.13204/j.gyjzG21041302

Volume 51 Issue 7

Nov. 2021

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(7): 123-128

JIA Jianjun, LIU Chunkui, JIE Lianbin, SHU Qianjin, ZHONG Chongshuo, YUAN Guanglin. STUDY ON ANTI-GROUND-DEFORMATION CAPACITY OF TRANSMISSION TOWER LINE SYSTEMS IN MINING AREAS IN DIFFERENT DIRECTIONS SUBJECTED TO HORIZONTAL GROUND DEFORMATION[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 123-128. doi: 10.13204/j.gyjzG21041302

Citation:

JIA Jianjun, LIU Chunkui, JIE Lianbin, SHU Qianjin, ZHONG Chongshuo, YUAN Guanglin. STUDY ON ANTI-GROUND-DEFORMATION CAPACITY OF TRANSMISSION TOWER LINE SYSTEMS IN MINING AREAS IN DIFFERENT DIRECTIONS SUBJECTED TO HORIZONTAL GROUND DEFORMATION[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 123-128. doi: 10.13204/j.gyjzG21041302

Citation:

JIA Jianjun, LIU Chunkui, JIE Lianbin, SHU Qianjin, ZHONG Chongshuo, YUAN Guanglin. STUDY ON ANTI-GROUND-DEFORMATION CAPACITY OF TRANSMISSION TOWER LINE SYSTEMS IN MINING AREAS IN DIFFERENT DIRECTIONS SUBJECTED TO HORIZONTAL GROUND DEFORMATION[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 123-128. doi: 10.13204/j.gyjzG21041302

PDF( 6766 KB)

STUDY ON ANTI-GROUND-DEFORMATION CAPACITY OF TRANSMISSION TOWER LINE SYSTEMS IN MINING AREAS IN DIFFERENT DIRECTIONS SUBJECTED TO HORIZONTAL GROUND DEFORMATION

doi: 10.13204/j.gyjzG21041302

1. State Grid Yangquan Power Supply Company, Yangquan 045000, China;
2. China University of Mining and Technology, Xuzhou 221116, China

Received Date: 2021-04-13
Available Online: 2021-11-11

Abstract

Abstract

To evaluate the threat of horizontal surface deformation caused by mining to the safety of transmission lines, a typical 220 kV transmission tower line system was taken as the research object and its finite element model was constructed by ANSYS. Considering the types of horizontal surface deformation, and directions, the change laws of forces in the tower members were analyzed, and the relations of the failure mode of the tower and the earth's surface horizontal deformation were revealed. The results showed that the buckling of the cross braces and horizontal braces in or near the first diaphragm-bracing plane was the main failure sign of the tower subjected to horizontal surface deformation. The directions of the horizontal ground deformation had a significant impact on the failure modes and deformation resistance of the tower. Compared with the horizontal ground deformation along the line or perpendicular to the line, when the horizontal ground deformation occured at an oblique angle to the line, the anti-ground-deformation capacity of the tower was significantly reduced, and the minimum capacity was at an oblique angle of 45 degrees.
- mining area,
- transmission tower line system,
- surface deformation,
- FEA,
- deformation resistance

FullText(HTML)

References(12)

References

[1]	王秀格, 乔兰, 孙歆硕. 地下采空区上输电塔基稳定性的数值模拟[J]. 金属矿山, 2008(3):110-113.
[2]	李逢春, 郭广礼, 邓喀中. 开采沉陷对架空输电线路影响预测方法及其应用[J]. 矿业安全与环保, 2002, 29(2):18-20.
[3]	袁广林, 刘涛, 张先扬, 等. 复合地表变形对输电铁塔内力和变形的影响分析[J]. 建筑科学, 2009, 25(9):14-17.
[4]	袁广林, 陈建稳, 杨庚宇, 等. 动态地表变形对输电铁塔内力和变形的影响[J]. 河海大学学报(自然科学版), 2010, 38(3):284-289.
[5]	YUAN G L, SHU Q J, ZHANG Y F, et al. Model Experiment on Anti-Deformation Performance of a Self-Supporting Transmission Tower in a Subsidence Area[J]. International Journal of Mining Science and Technology, 2012, 22(1):57-61.
[6]	袁广林, 张云飞, 陈建稳, 等. 塌陷区输电铁塔的可靠性评估[J]. 电网技术, 2010, 34(1):214-218.
[7]	袁广林, 舒前进, 张云飞. 超高压输电线路沉陷区输电铁塔安全性评价[J]. 电力建设, 2011, 32(1):18-21.
[8]	SHU Q J, YUAN G L, GUO G L, et al. Limits to Foundation Displacement of an Extra High Voltage Transmission Tower in a Mining Subsidence Area[J]. International Journal of Mining Science and Technology, 2012, 22(1):13-18.
[9]	SHU Q J, YUAN G L, ZHANG Y F, et al. Research on Anti-Foundation-Displacement Performance and Reliability Assessment of 500 kV Transmission Tower in Mining Subsidence Area[J]. Open Civil Engineering Journal, 2011(5):87.
[10]	SHU Q J, YUAN G L, HUANG Z H, et al. The Behaviour of The Power Transmission Tower Subjected to Horizontal Support's Movements[J]. Engineering Structures, 2016, 123:166-180.
[11]	FU X, LI H N. Dynamic Analysis of Transmission Tower-Line System Subjected to Wind and Rain Loads[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2016, 157:95-103.
[12]	中华人民共和国国家能源局.架空输电线路运行规程:DL/T 741-2019[S]. 北京:中国电子出版社, 2019.