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对于地下工程,特别是隧道工程,遭遇复杂多变的地质情况不可避免,而针对地质情况选择合适的施工方法,使工程能够顺利完成则是我们的目标。在大铲岛—孖州岛过海隧道工程的设计中,平面上采用直线设计形式;纵断面设计考虑了航道部门的要求,以及隧道围岩具体的地质情况,采用“一”字单坡的形式进行设计。针对隧道两端地质好、中间地质差的特点,分别采用了矿山法和盾构法相结合的复合施工方法,由于技术方案得当,使整个工程在计划工期内得以顺利完成。
For the underground engineering, especially the tunnel engineering, the complex and ever-changing geological conditions are inevitable. It is our goal to choose the appropriate construction method according to the geological conditions so that the project can be successfully completed. In the design of the Great Crane Island - Danzhou Island cross-harbor tunnel project, the straight line design is adopted on the plane; the vertical section design takes into account the requirements of the channel department and the specific geological conditions of the surrounding rock of the tunnel, adopting " Design in the form of a slope. Due to the characteristics of good geology at both ends of the tunnel and poor geological features in the middle, a composite construction method combining mine method with shield method was adopted respectively. Due to proper technical solutions, the entire project was successfully completed within the planned construction period.