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Shield underground joining and widening

Proposals were made for the following purposes: Stabilization of ground and water cutoff

Underground Bonding

1Preventing collapse during underground joining and water cutoff: Jet Grouting

JETCRETE (proprietary technology) SUPERJET (proprietary technology) X-JET (proprietary technology) COLUMNJET (proprietary technology)

2Creating cutoff zones: Grouting Method

CurveX (proprietary technology) PneumaX(proprietary technology) Double pipe strainer Double packer

3Preventing collapse during underground widening and water cutoff: Soil freezing

ICELOCK (proprietary technology) ICECRETE (proprietary technology)