Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Freezer with vertical variable freezing effect and working method
The invention discloses a freezer with a vertical variable freezing effect and a working method, and is suitable for the technical field of soil body freezing. Comprising a liquid supply pipe of an interlayer tubular structure, a liquid supply channel is reserved between the inner pipe wall and the outer pipe wall of the liquid supply pipe, the end of the liquid supply pipe is provided with an upper liquid collection cavity of a matched hollow annular cake-shaped structure, a liquid return pipe penetrates through the upper liquid collection cavity, and the end of the liquid return pipe is provided with a lower liquid collection cavity of a hollow cake-shaped structure. The end of the liquid return pipe is connected with the circle center of the lower liquid collection cavity, and a plurality of curve freezing pipes are arranged between the lower liquid collection cavity and the upper liquid collection cavity. A spindle-shaped freezing curtain is formed at a starting or receiving working well of a shield tunneling machine and is coordinated with stress distribution of a circular plate-shaped freezing wall outside a hole door, so that the maximum stress in the freezing wall can be reduced, the advantage of freezing effect difference of freezers with different depths can be fully played, the arrangement number of freezing holes can be reduced, and the freezing efficiency is improved. And the method has remarkable economic benefits and engineering values.
本发明公开了一种竖向可变冻结效果的冻结器及工作方法，适用于土体冻结的技术领域。包括夹层管状结构的供液管，供液管的内管壁与外管壁之间留有供液通道，供液管的端部设有结构匹配的中空环形饼状结构的上集液空腔，回液管穿过上集液空腔设置，回液管端部设有中空饼状结构的下集液空腔，回液管端部与下集液空腔的圆心处连接，下集液空腔与上集液空腔之间设有多根曲线冻结管。通过在盾构机始发或者接收工作井处形成纺锤形冻结帷幕，与洞门外圆板形冻结壁的应力分布协调，不仅可以降低冻结壁内的最大应力，充分发挥不同深度冻结器的冻结效果差异性的优势，而且可以减少冻结孔的布置数量，具有显著的经济效益和工程价值。
Freezer with vertical variable freezing effect and working method
The invention discloses a freezer with a vertical variable freezing effect and a working method, and is suitable for the technical field of soil body freezing. Comprising a liquid supply pipe of an interlayer tubular structure, a liquid supply channel is reserved between the inner pipe wall and the outer pipe wall of the liquid supply pipe, the end of the liquid supply pipe is provided with an upper liquid collection cavity of a matched hollow annular cake-shaped structure, a liquid return pipe penetrates through the upper liquid collection cavity, and the end of the liquid return pipe is provided with a lower liquid collection cavity of a hollow cake-shaped structure. The end of the liquid return pipe is connected with the circle center of the lower liquid collection cavity, and a plurality of curve freezing pipes are arranged between the lower liquid collection cavity and the upper liquid collection cavity. A spindle-shaped freezing curtain is formed at a starting or receiving working well of a shield tunneling machine and is coordinated with stress distribution of a circular plate-shaped freezing wall outside a hole door, so that the maximum stress in the freezing wall can be reduced, the advantage of freezing effect difference of freezers with different depths can be fully played, the arrangement number of freezing holes can be reduced, and the freezing efficiency is improved. And the method has remarkable economic benefits and engineering values.
本发明公开了一种竖向可变冻结效果的冻结器及工作方法，适用于土体冻结的技术领域。包括夹层管状结构的供液管，供液管的内管壁与外管壁之间留有供液通道，供液管的端部设有结构匹配的中空环形饼状结构的上集液空腔，回液管穿过上集液空腔设置，回液管端部设有中空饼状结构的下集液空腔，回液管端部与下集液空腔的圆心处连接，下集液空腔与上集液空腔之间设有多根曲线冻结管。通过在盾构机始发或者接收工作井处形成纺锤形冻结帷幕，与洞门外圆板形冻结壁的应力分布协调，不仅可以降低冻结壁内的最大应力，充分发挥不同深度冻结器的冻结效果差异性的优势，而且可以减少冻结孔的布置数量，具有显著的经济效益和工程价值。
Freezer with vertical variable freezing effect and working method
一种竖向可变冻结效果的冻结器及工作方法
SHI RONGJIAN (Autor:in) / JI JIAJUN (Autor:in) / JIANG TAO (Autor:in) / YUE FENGTIAN (Autor:in) / ZHANG YONG (Autor:in) / LU LU (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
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