Abstract: A detailed study of main factors of expressway with tunnel group was conducted: transport routes, temporary engineering, temporary layout of facilities, water, electricity, telecommunications, networks, spoil site setting, geology, climate, hydrological conditions, avoiding overlapping sub-contract segment, favorable external coordination, etc. In order to avoid overlapping and enhance favorable external coordination, several main means of dividing contract section were obtained: single subtype, middle subtype, left and right segmented type, and hybrid type; difficulties of construction organization in expresshway with the tunnel group, namely difficulty of time organization and difficulty of space organization were discussed.

Key words: tunnel group, expressway, construction organinzation, difficulty analysis

摘要： 首先详细分析了具有隧道群的高速公路施工合同段划分应考虑的主要因素,即运输通道,临时工程、临时设 施的布置,水、电、通讯、网络等的接口,弃渣场的设置,地质、气候、水文条件等,避免合同段分段的相互交叉、有利 于外部协调;然后归纳出了合同段划分的几种主要形式:单一分段式、中间分段式、左右分段式和混合式;最后论述 了具有隧道群的高速公路施工组织的难点:即施工时间组织困难,施工空间组织困难。

关键词: 隧道群, 高速公路, 施工组织, 难点分析