高速公路单向交通隧道内最大纵坡设计研究

Maximum longitudinal gradient in one-way traffic highway tunnels

文章根据对隧道内施工运输、排水和通风等最大纵坡控制因素的分析,提出了隧道内单向交通连续上坡路段最大纵坡的建议值,以及长大隧道内增大坡度的技术措施,可供公路设计参考和借鉴。

Based on the analysis of the tunnel construction haulage, drainage and ventilation, which are control factors for the maximum longitudinal gradient of a tunnel, the paper proposes the values of maximum longitudinal gradient by continuous climb in one -way traffic tunnels, and the technical measures for increasing the longitudinal gradient in long tunnels, which can be taken for reference in highway design.