白鹤滩左岸地下洞室群空气环境治理关键技术

Key technologies for improving air environment of underground cable groups in left bank of Baihetan Hydropower Station

白鹤滩水电站左岸地下洞室群属深埋巨型地下洞室群,其空气环境治理是一项关键技术,研究通过引进进口风机并结合工程特点合理规划布置,提出“分期布局、新污分流、送排结合、变频节能”关键技术,使得巨型地下洞室群开挖爆破施工作业环境得到有效改善。

Air environment improvement is one of key study areas in the construction of giant underground chambers deeply buried on the left bank of Baihetan Hydropower Station. It is designed to introduce entrance fans together with proper layout during blasting in excavation of underground chambers. The technology has helped to reach the targets of"phased layout, separating new and sewage waters, combining with feeding and discharging and frequency conversion and energy saving", and in particularly improvement of working environment during construction.