Shield tunneling machine integrated freezing method for reinforcing formation

The invention discloses a shield tunneling machine integrated freezing method for reinforcing a formation. The method comprises the following steps of 1, preparing low-temperature freeze water; 2, arranging cutter head freezing areas; 3, installing freeze pipes; 4, arranging monitoring points and in...

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Hauptverfasser: DANG XIFENG, WU SHENGTAO, ZHANG ZIFENG, XU TIELI, LUO JINHAI, HE WEIGUO, DENG YOUCHUN, LI QI, ZHOU PENG, YANG YONGQIANG, LI KAI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a shield tunneling machine integrated freezing method for reinforcing a formation. The method comprises the following steps of 1, preparing low-temperature freeze water; 2, arranging cutter head freezing areas; 3, installing freeze pipes; 4, arranging monitoring points and installing sensors in a frozen reinforcement formation; 5, laying fire-proof heat-insulated layers; 6,setting a mud and water cabin partition plate as a cold plate; 7, forming the frozen reinforcement formation into a frozen body. The method is simple in step and high in operability, high sea water pressure can be overcome, it is achieved that a soil body around a cutter head is effectively and reliably frozen and reinforced, less cold in the vertical freeze pipes is dissipated outwards, less external heat invades, and the freezing efficiency is improved; besides, the situations that due to in-cabin flame operation, the frozen body is melted and the strength is reduced are avoided, therefore,it is ensured that the cu