Grouting reinforcement and excavation construction technology for divulged yellow clay of ventilation shaft 风井透溃黄泥注浆加固掘进施工技术
Air flow control and rescue during mine disaster in mine with multiple ventilation shafts and high gas 多风井高瓦斯矿井灾变时期的风流控制与救灾
Influence of nature ventilation pressure against reversing ventilation in multi air shaft level mine 浅议自然风压对多风井多水平通风矿井反风的影响
Influence of nature ventilation pressure against reversing ventilation in multi air shaft amp; amp; level mine 浅议自然风压对多风井多水平通风矿井反风的影响
Analysis of resistance reducing and anti - disaster abilities improving in combined ventilation mines with multi - air shafts 多风井联合通风矿井降阻及提高抗灾能力探析
Resistance - reducing and energy - saving function of air registration - communication tunnels arranged between exhaust airways 排风井之间设置调风联络巷道的降阻节能作用
Since stations and tunnels of subway connect with each other and form a network rediating to all directions , the air flow is very complex 要想在事故区间形成有效通风，单靠设在车站或风井内的大型隧道风机往往达不到通风效果。
Exhaust gas passage with variable pressure : it is adopted to prevent foul air from toilet and kitchen ; check valve is added at the joint 变压式排风：为防止卫生间、厨房排风井内的污风反窜到室内，排风道采用了变压式排气道，并在封到接口处增设了止回阀。
Owing to large difference of foundation pit depth in different zones , neighbouring metro line no . 1 and no . 2 , existing wind wells and underground lane , etc . , the monitoring project was prepared in detail to make construction of foundation pits be informationized , thus the full data were obtained 由于该基坑平面不同位置深度差异大、紧邻地铁一号线与地铁二号线以及已有车站风井、地下通道等地下构筑物，且地处商业繁华地带。
