浅谈常州大唐线路工程采用GF-250反循环钻机施工的改进方案

Brief Discussion on Improvement Scheme for Construction of Changzhou Maowu Line Project Using GF-250 Reverse Circulation Drill Rig

根据常州大唐金坛燃机配套220kV送出工程金城镇区段地质条件,对采用GF-250履带式反循环钻机施工技术,在成孔方式、成孔时间、泥浆配置、灌注混凝土用量、施工功效、经济成本、施工便捷性等方面进行分析总结,提出了该地质条件下采用履带式反循环钻机施工的改进方案。

According to the geological conditions of Jincheng town, the use of GF250 reverse circulation drilling rig is ana lyzed in the aspects of pore forming mode, pore formation time, mud configuration, concrete dosage, construction efficiency, economic cost and construction convenience. An improvement plan for the construction of caterpillar reverse circulation drilling rig under this geological condition is put forward.