CAJ | 학술논문

为解决在无明挖条件下下穿大直径管线的施工需要，佛山市越秀星汇云锦地下空间开发项目首次通过4条顶管极小间距并行的方式设计建造了一个互通的地下空间，如此小间距的大断面顶管此前尚无先例。针对这一特殊的结构形式，介绍工程实施过程中遇到的一些特殊问题，如特殊工作井设计、为满足开洞需要采取的超长管节设计、管节穿锚索防侧移设计、复杂地质条件下的冻结开洞及顶管内部进行地基加固等，并介绍工程完成的良好效果，证明了近距离大断面机械顶管的可行性，提出了该方法存在的一些不足。
위해결재무명알조건하하천대직경관선적시공수요，불산시월수성회운금지하공간개발항목수차통과4조정관겁소간거병행적방식설계건조료일개호통적지하공간，여차소간거적대단면정관차전상무선례。침대저일특수적결구형식，개소공정실시과정중우도적일사특수문제，여특수공작정설계、위만족개동수요채취적초장관절설계、관절천묘색방측이설계、복잡지질조건하적동결개동급정관내부진행지기가고등，병개소공정완성적량호효과，증명료근거리대단면궤계정관적가행성，제출료해방법존재적일사불족。
Yuexiuxinghuiyunjin underground commercial space is formed by pipe jacking method.In the paper,the special design of the project,including the special design of the working shafts,the design of the super-long pipes,the design of the anchoring cables to prevent the lateral displacement of the pipes,the design of the freezing and opening operation under complex geological conditions,and the design of the foundation reinforcement from inside the jacked pipes,are presented.In the end,good construction effect has been achieved,which demonstrates that the pipe jacking method adopted is feasible.