为了探究G8012弥勒至楚雄高速公路工程弥勒至玉溪段登楼山隧道的通风方案，本文通过对登楼山隧道需风量的计算，考虑左右洞近、远期规划，结合隧道通风实际施工条件及目前国内通用的处理方法，提出了“三斜井左线两段、右线分三段纵向通风”和“三竖井左线两段、右线分三段纵向通风”两种通风方案，并进行比选研究。对比结果表明：三竖井方案通风井长度在500 m以下，三斜井方案在1500 m左右，三斜井通风阻力较大，导致风机装机功率增大1654 kW，增长比率15.3%，运营能耗和土建工程量增加，不宜采用。推荐“三斜井左线两段、右线分三段纵向通风”作为该隧道的通风方式，并选用1250型大推力射流风机进行补充增压。
In order to explore the ventilation scheme of the G8012 Mile-Chuxiong highway project from the Mile to Yuxi section of the Dengloushan tunnel, based on the calculation of the required air volume of the Dengloushan tunnel, considering the near and long-term planning of the left and right tunnels and adding to the practical construction conditions, the paper proposes two ventilation schemes that are “two segments in the left line of three-inclined well, three segments with longitudinal ventilation of the right line” and the “two segments in the left line of three-shaft, three segments with longitudinal ventilation of the right line”. The comparison results show that: three-shaft well’s ventilation shaft length is below 500 m, the three-inclined shaft scheme is about 1500 m, and the ventilation resistance of the three-inclined well is large, resulting in the fan installed power increasing 1654 kW, the growth ratio is 15.3%, and the operation energy consumption and the civil engineering quantity increase, which is not suitable. It is recommended the “two segments in the left line of three-inclined well, three segments with longitudinal ventilation of the right line” as the ventilation scheme of the tunnel, and the 1250 type large thrust jet fan should be selected to replenish the pressurization.
