复杂环境下的综合管廊设计难点及优化方案

Design Difficulties and Optimization Scheme of Utility Tunnel in Complex Environment

复杂环境下的综合管廊建设面临现状管线复杂、空间受限、专业交叉、安全施工、工期紧张以及社会舆论等诸多困难,青岛岙东路综合管廊项目设计中,从入廊管线安全等级、安装难易程度、相互影响等角度出发,确定断面布局;根据主廊埋深、分支管线重要性,分别选用十字分支口和直埋分支口;创新性地提出节点整合分类方案,采用BIM技术完成复杂节点优化、整合;根据地质条件、环境因素,采用放坡支护与垂直支护。最终在满足规划和使用功能的前提下,做到了节省投资、缩短工期和安全施工。

The construction of utility tunnel in complex environment is facing many difficulties such as complex current pipeline,limited space,multidisciplinary collaboration,safe construction,short construction period and public opinion.In the design of Qingdao Aodong Road utility tunnel project,the section layout was determined from the perspective of safety grade of the pipeline entering the tunnel,the degree of installation difficulty and mutual influence.According to the buried depth of the main tunnel and the importance of the branch pipeline,the cross branch and the directly buried branch were selected respectively.A node integration classification scheme was innovatively proposed,and the complex nodes were optimized and integrated by using BIM technology.According to the geological conditions and environmental factors,sloping support and vertical support were adopted.Under the premise of meeting the planning and use functions,the investment was saved,the construction period was shortened and the construction safety was achieved.