Analysis of Anti-freezing Measures and Cross-section Design Optimization for the Drainage Channel Reconstruction Project in the Cold Mining Area of Jingtie Mountain
The Huashugou drainage channel is a key project for safe production in the Jingtie mountain mining area.Ice formation in the channel during winter leads to frost damage,posing serious threats to the safe operation of the track platforms and other facilities,as well as causing localized water ecological problems.To prevent water from the Huashugou channel from infiltrating the orebody downstream,which could complicate mining and introduce safety hazards,a reconstruction project was implemented using artificial methods.The aim was to ensure smooth production activities in the mining area and restore the local water ecological environment.The results of the reconstruction showed that by using double-layer polyurethane sandwich panels for insulation and installing cold-resistant doors at the inlet and outlet,the original wide and shallow trapezoidal channel was optimized into a narrow and deep'U'-shaped channel.This modification increased the flow velocity during low flow conditions,allowing for ice-free flow during winter.After four winters of operation,the drainage project ran safely and efficiently.This demonstrates that the comprehensive anti-freezing measures of insulation and increasing flow velocity can ensure ice-free and safe operation of low-flow channels in cold regions during winter,providing a reference for the design and safe operation of winter drainage projects in cold areas.
国家科技期刊平台
NSTL
万方数据
