超高压供电杆塔可调式加固技术在“三下”开采中的应用  

Adjustable reinforcement technology of ultra-high voltage power supply tower applied to coal mining under buildings,railways and water bodies

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)

机构地区：[1]新矿内蒙古能源有限责任公司沙章图矿井筹建处,内蒙古鄂尔多斯016215

出　　处：《建井技术》2023年第2期15-19,14,共6页Mine Construction Technology

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.

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 

分 类 号：TD325[矿业工程—矿井建设] TU433[建筑科学—岩土工程]