A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shield normal-pressure tool changing method in water-rich sandy gravel stratum
The invention discloses a shield normal-pressure tool changing method in a water-rich sandy cobble stratum. The technical problem that an existing tool changing method is high in safety risk in the water-rich sandy cobble stratum environment is solved. The method mainly comprises the following steps: (1) preparing slurry; (2) surveying and setting out; (3) the plain concrete pile is drilled; (4) pouring plain concrete piles; (5) plain concrete piles are constructed in front of and on the two sides of the cutterhead; (6) manhole drilling; (7) to (9) cutter replacement; and (10) plugging the manhole. The method has the advantages of being high in safety, low in risk, stable in tunnel face, not prone to collapse, high in tool changing efficiency under normal pressure and the like.
本申请公开了一种富水砂卵石地层中盾构常压换刀方法，旨在解决现有刀具更换方法在富水砂卵石地层环境下安全风险高的技术问题。该方法主要包括如下步骤：（1）泥浆制备；（2）测量放样；（3）素混凝土桩钻孔；（4）素混凝土桩浇筑；（5）于刀盘前方及两侧施作各素混凝土桩；（6）人孔钻设；（7）‑（9）刀具更换；（10）人孔封堵。本申请方法具有安全性高、风险低、掌子面稳定不易坍塌、常压下换刀效率高等优点。
Shield normal-pressure tool changing method in water-rich sandy gravel stratum
The invention discloses a shield normal-pressure tool changing method in a water-rich sandy cobble stratum. The technical problem that an existing tool changing method is high in safety risk in the water-rich sandy cobble stratum environment is solved. The method mainly comprises the following steps: (1) preparing slurry; (2) surveying and setting out; (3) the plain concrete pile is drilled; (4) pouring plain concrete piles; (5) plain concrete piles are constructed in front of and on the two sides of the cutterhead; (6) manhole drilling; (7) to (9) cutter replacement; and (10) plugging the manhole. The method has the advantages of being high in safety, low in risk, stable in tunnel face, not prone to collapse, high in tool changing efficiency under normal pressure and the like.
本申请公开了一种富水砂卵石地层中盾构常压换刀方法，旨在解决现有刀具更换方法在富水砂卵石地层环境下安全风险高的技术问题。该方法主要包括如下步骤：（1）泥浆制备；（2）测量放样；（3）素混凝土桩钻孔；（4）素混凝土桩浇筑；（5）于刀盘前方及两侧施作各素混凝土桩；（6）人孔钻设；（7）‑（9）刀具更换；（10）人孔封堵。本申请方法具有安全性高、风险低、掌子面稳定不易坍塌、常压下换刀效率高等优点。
Shield normal-pressure tool changing method in water-rich sandy gravel stratum
富水砂卵石地层中盾构常压换刀方法
LIU ZHAOBIN (author) / ZHANG GUANGPU (author) / LI XINWEI (author) / LI ZILIANG (author) / GAO YUBO (author) / DUAN JIANTONG (author)
2023-08-22
Patent
Electronic Resource
Chinese
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