大漂石高富水地层土压平衡盾构施工控制策略

赵旭伟

Control Strategy of EPB Shield Tunnel Construction in Saturated Cobble and Boulder Stratum

ZHAO Xuwei
摘要:
对成都地铁4号线某区间隧道穿越大漂石高富水地层易出现的“卡”、“磨”、“塌”等典型施工问题进行了系统分析。结合现场测试数据,建议大漂石地层盾构施工采用动力配置较高的复合式盾构机,盾构施工过程每环超挖率控制在3.3%左右。
Abstracts:
Typical construction problems such as 'stuck', 'erosion', 'subside' that easily appear in tunnel of Chengdu Metro Line 4 certain interval passing saturated cobble and boulder stratum are systematically analyzed. Based on field tests data, it is suggested to use the composite shield tunneling machine with high dynamic configuration and high power, and the ratio of over excavation shall be limited to approximately 3.3%.
引文 / Ref:
赵旭伟.大漂石高富水地层土压平衡盾构施工控制策略[J].城市轨道交通研究,2021,24(6):86.
ZHAO Xuwei.Control Strategy of EPB Shield Tunnel Construction in Saturated Cobble and Boulder Stratum[J].Urban mass transit,2021,24(6):86.
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