【摘要】 长大隧道钻爆法施工中凿岩、爆破、装运都会产生大量的粉尘、废气,施工通风是一个难以攻克的技术难题。通过分析长大隧道分阶段工程环境,结合施工通风,对施工通风的风量、风压计算、通风系统布置及改善隧道施工通风的技术途径作了较详细的介绍,并且在实际施工中取得了良好效果。更多还原

【Abstract】 Rock drill,blasting and loading in long tunnel construction will produce large amounts of dust and gas,ventilation is a difficult technical problem to overcome. Based on the analysis of engineering environment of long tunnel construction,combined with the construction of ventilation,this paper introduced the air volume and air pressure calculation,layout of ventilation system and technologies for improving the ventilation in detail. Good effect is obtained in engineering practice.更多还原