渣土泵送技术在土压平衡盾构机分体始发中的应用

熊栋栋陈祥龙

Application of Muck Pumping Technology in the Separate Initiation of Earth Pressure Balance TBM

XIONG DongdongCHEN Xianglong
摘要:
为解决地铁隧道盾构机分体始发阶段空间狭小、无法按常规方法进行渣土运输的难题,以吉隆坡地铁 MRT2 号线地下段 B 标区间为研究对象,对土压平衡盾构机始发阶段渣土泵送技术的设备选型、工艺流程、施工工效、地层适应性,以及实施过程中遇到的问题进行了分析,提出了针对性的优化改进措施,形成了一整套具有可操作性的土压平衡盾构机始发阶段渣土泵送关键技术。利用该技术成功完成了MRT 2 号线地下段 B 标区间盾构机分体始发掘进阶段共计71环的盾构掘进出渣任务。
Abstracts:
In order to solve the small space problem in the initial stage of metro EPB TBM (earth pressure balance tunnel boring machine) construction, which leads to the muck transportation failure in the conventional method, the tunneling section of the Package B of Kuala Lumpur MRT Line 2 is taken as an example to carry out the research. Problems in tunnel construction, like equipment selection, technological process, construction efficiency and stratum adaptability of the muck pumping technology in the initial stage of metro EPB TBM construction are analyzed, corresponding optimization and improvement measures are put forward. On this basis, a set of key technologies with operability for muck pumping in the initial stage of the EPB TBM is formed, and then adopted in the tunneling section of the Package B of Kuala Lumpur MRT Line 2 in the initial stage and successfully complete the muck-discharging task of totally 71 rings.
引文 / Ref:
熊栋栋,陈祥龙.渣土泵送技术在土压平衡盾构机分体始发中的应用[J].城市轨道交通研究,2021,24(10):102.
XIONG Dongdong,CHEN Xianglong.Application of muck pumping technology in the separate initiation of earth pressure balance TBM[J].Urban Mass Transit,2021,24(10):102.
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