摘要
超高压供电线路杆塔高度大、稳定性要求高,在煤矿线下开采前必须采取技术措施,保证供电线路正常运行。论述了开采对杆塔影响的评估方法,对影响超限的杆塔,采用“井”字梁可调式加固调节技术进行采中、采后调节,在不改变原开采工艺的情况下,实现超高压杆塔下厚煤层无煤柱开采的技术方案。
The poles and tower of the ultra-high voltage power supply line would have a high height and would require a high stability.Before an underground mining operation conducted in a mine,the technical measures should be conducted to ensure the power supply lines in a normal operation.The paper stated a method to evaluate the coal mining effected to the pole and tower.As for the pole and tower with the influences over limits,a grillage beam adjustable type reinforcement and adjusted technology could be applied to the adjustments during the mining operation and after the mining operation.Under a condition no to change the previous mining technology,a technical solution was realized a no coal pillar mining in a thick coal seam under the ultra-high voltage pole and tower.
作者
白光超
张法才
BAI Guangchao;ZHANG Facai(Preparation Office of Shazhangtu Mine,New Mine Inner Mongolia Energy Company Limited,Ordos 016215,China)
出处
《建井技术》
2023年第2期15-19,14,共6页
Mine Construction Technology
关键词
三下采煤
无煤柱开采
超高压线下采煤
杆塔加固方案
可调式加固技术
coal mining under buildings,railways and water bodies
no coal pillar mining
coal mining under ultra-high voltage power supply line
reinforcement plan of power poles and towers
adjustable reinforcement technology
