长春火车站南北地下通道管棚支护施工工艺

Construction Technology of Pipe Roof Support for Underground Passage of Changchun Railway Station

摘要:

在软弱土层管棚支护工程中，利用现有设备试验了多种成孔方法，优选出最佳成孔法，加快了工程进度。对该类施工易发生的问题进行了阐述，对类似的施工有一定的借鉴意义。

关键词:管棚支护;地下通道;施工工艺;仰角;钻进

Abstract:

The paper discussed common problems of pipe roof support engineering in soft ground and presented the optimization technology by tests on borehole construction methods with existing equipments.

Key words:pipe roof support; underground passage; construction technology; elevation angle; drilling