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电力大数据:2018,21(1):-
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贵州煤矿采空区架空线路杆塔基础方案探讨
张军,曹长胜
(贵州电力设计研究院,贵州电力设计研究院)
Discussion on scheme of overhead transmission line tower foundation above goaf of Guizhou coal mine
Zhang Jun and Cao Changsheng
(Guizhou Electric Power Design & Research Institute,Guizhou Electric Power Design & Research Institute)
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投稿时间:2018-01-05    修订日期:2018-01-11
中文摘要: 贵州地区的煤矿采空区具有分布广、影响范围大、地形地貌特殊、开采规模复杂等特点。常见煤矿采空区的地表塌陷和地基变形对输电线路铁塔与基础存在着极大的危害,因此,深入开展煤矿采空区对输电线路工程的理论研究,制定合理、经济、高效的防护和治理方案,对电网的安全、稳定运行有着极为重要的意义。结合近年来的工程实践,提出了采用直柱式柔性大板基础有效防治采空区塌陷的方案,重点分析了该基础方案的优化设计、理论计算及注意事项,从而达到安全、环保、经济的设计目的。目前,采用直柱式柔性大板基础方案在诸多采空区的输电线路工程实践中,已经取得了较为成熟的应用。
Abstract:The goaf of coal mine in Guizhou has the characteristics of wide distribution, large influence scope, special topography and topography, complex mining scale and so on. While the subsidence and deformation of common goaf has great harm to the transmission line tower and foundation. Therefore, to investigate the influence of goaf on the power transmission lines and to renovate it by proper and economic and high efficiency method have very important significance for the secure and steady operation of power system. Based on the engineering practice in recent years, this paper puts forward the plan of preventing the collapse of goaf by using the Straight column flexible slab foundation, and emphatically analyzes the optimization design, theoretical calculation and precautions of the foundation scheme, so as to achieve the purpose of safety, environmental protection and economic design. At present, the scheme of the Straight column flexible slab foundation has been applied in many transmission line engineering practice above the goaf.
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