Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Liquid nitrogen freezing construction method
The invention discloses a liquid nitrogen freezing construction method which comprises the following steps that S1, the top view range of underground engineering such as a shaft to be excavated is marked on the earth surface, liquid nitrogen freezing construction points are marked outside the range, and the construction points need to be evenly distributed outside the underground engineering range; s2, the liquid nitrogen freezing construction point in the S1 is used as a base point, and a liquid nitrogen freezer is arranged underground; after all the liquid nitrogen freezers are arranged and formed, hypothetical connecting lines of the adjacent liquid nitrogen freezers can form a closed space, and the center point of the space is the center point of the top view range of the underground engineering; s3, all the liquid nitrogen freezers are synchronously started, and liquid nitrogen enters the liquid nitrogen freezers through liquid nitrogen supply pipes; compared with a traditional liquid nitrogen construction method, the construction method has the advantages that a closed frozen soil layer can be formed at the construction point of the underground engineering, and safe and friendly environmental guarantee is provided for excavation of the underground engineering.
本发明公开了一种液氮冻结施工方法，包括以下步骤：S1、在地表处标注拟开挖井筒等地下工程的顶视范围，并在此范围的外部标注液氮冻结施工点，该施工点需均匀分布于地下工程范围的外部；S2、以S1中液氮冻结施工点为基点，向地下安置液氮冻结器；当所有液氮冻结器全部安置成型后，相邻的每组液氮冻结器假想连线可组成一个封闭的空间，该空间的中心点即为地下工程的顶视范围的中心点；S3、同步启动所有液氮冻结器，液氮通过液氮供液管进入液氮冻结器；本发明提供了特型“冻结帷幕”的施工方式，相较于传统液氮施工方法，本发明能够在地下工程的施工点形成一层封闭的冻土层，为地下工程的开挖提供安全和友好的环境保障。
Liquid nitrogen freezing construction method
The invention discloses a liquid nitrogen freezing construction method which comprises the following steps that S1, the top view range of underground engineering such as a shaft to be excavated is marked on the earth surface, liquid nitrogen freezing construction points are marked outside the range, and the construction points need to be evenly distributed outside the underground engineering range; s2, the liquid nitrogen freezing construction point in the S1 is used as a base point, and a liquid nitrogen freezer is arranged underground; after all the liquid nitrogen freezers are arranged and formed, hypothetical connecting lines of the adjacent liquid nitrogen freezers can form a closed space, and the center point of the space is the center point of the top view range of the underground engineering; s3, all the liquid nitrogen freezers are synchronously started, and liquid nitrogen enters the liquid nitrogen freezers through liquid nitrogen supply pipes; compared with a traditional liquid nitrogen construction method, the construction method has the advantages that a closed frozen soil layer can be formed at the construction point of the underground engineering, and safe and friendly environmental guarantee is provided for excavation of the underground engineering.
本发明公开了一种液氮冻结施工方法，包括以下步骤：S1、在地表处标注拟开挖井筒等地下工程的顶视范围，并在此范围的外部标注液氮冻结施工点，该施工点需均匀分布于地下工程范围的外部；S2、以S1中液氮冻结施工点为基点，向地下安置液氮冻结器；当所有液氮冻结器全部安置成型后，相邻的每组液氮冻结器假想连线可组成一个封闭的空间，该空间的中心点即为地下工程的顶视范围的中心点；S3、同步启动所有液氮冻结器，液氮通过液氮供液管进入液氮冻结器；本发明提供了特型“冻结帷幕”的施工方式，相较于传统液氮施工方法，本发明能够在地下工程的施工点形成一层封闭的冻土层，为地下工程的开挖提供安全和友好的环境保障。
Liquid nitrogen freezing construction method
一种液氮冻结施工方法
WANG PENGYUE (Autor:in) / LYU HONGJUAN (Autor:in) / PEI JICHENG (Autor:in)
08.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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