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Steel pipe ring piece capable of achieving rapid freezing of stratum and machining method of steel pipe ring piece

A processing method and technology of steel pipe sheet, which can be applied in underground chambers, earthwork drilling, and detection of fluid appearance at leakage points, etc., can solve the problems of complex and time-consuming oil filling process, and achieve processing cost and processing difficulty Low, reduce erosion, ensure the effect of effective service life

Active Publication Date: 2022-03-11
中交(南京)建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this application, the contact area between the freezing tube and the steel pipe sheet is increased by filling the rib cavity with grease. Although the heat exchange efficiency can be improved, there are many rib cavity on the steel pipe sheet, and the process of filling grease in the actual construction process is relatively complicated and consumes a lot of energy. More often

Method used

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  • Steel pipe ring piece capable of achieving rapid freezing of stratum and machining method of steel pipe ring piece
  • Steel pipe ring piece capable of achieving rapid freezing of stratum and machining method of steel pipe ring piece
  • Steel pipe ring piece capable of achieving rapid freezing of stratum and machining method of steel pipe ring piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The steel pipe annulus that realizes quick freezing of the formation in this embodiment includes:

[0057] There are several arc-shaped steel pipe sheets 1, which are sequentially connected to form steel pipe ring sheets;

[0058] The rib plate 2 is fixedly connected to the inner surface of the arc-shaped steel pipe sheet 1 in a manner perpendicular to the inner surface of the arc-shaped steel pipe sheet 1, the length direction of the rib plate 2 is arranged along the width direction of the arc-shaped steel pipe sheet 1, and the rib plate There are several plates 2 arranged at intervals, and a rib cavity 20 is formed between 2 adjacent rib plates;

[0059] Also includes:

[0060] A communication hole 3, which runs through each rib 2, and communicates with adjacent rib cavities 20;

[0061] A sealing plate 4, which is arranged on one side of the inner surface of the arc-shaped steel pipe sheet 1, and is used to seal each rib cavity 20;

[0062] The water inlet port 5 ...

Embodiment 2

[0067] In this embodiment, the steel pipe ring piece for quick freezing of the formation is further improved on the basis of Embodiment 1, and further includes:

[0068] The connecting channel 7 communicates with the two rib cavities 20 at the joint ends of two adjacent arc-shaped steel pipe sheets 1 .

[0069] like figure 2 , image 3 and Figure 4 As shown, the end plates of each arc-shaped steel pipe sheet 1 do not have communication holes. In order to ensure the fluidity of the internal refrigerant and ensure the heat exchange efficiency, this embodiment is provided with a connecting channel 7, connecting the rib cavity 20 at the end of one arc-shaped steel pipe sheet 1 to the other corresponding to it. The rib cavity 20 at the end of the connected arc-shaped steel pipe sheet 1 is connected, so that after each arc-shaped steel pipe sheet 1 is spliced ​​into a ring, a refrigerant circuit is formed between each arc-shaped steel pipe sheet 1, and the entire steel pipe rin...

Embodiment 3

[0074] The steel pipe ring sheet for rapid freezing of the ground in this embodiment is further improved on the basis of Embodiment 2, the water inlet port 5 and the water outlet port 6 are respectively connected to the two ribs at the ends of the adjacent two arc-shaped steel pipe sheets 1 Cavity 20 communicates;

[0075] No connecting pipe 7 is provided at the joint ends of two adjacent arc-shaped steel pipe sheets 1 provided with a water inlet port 5 and a water outlet port 6 .

[0076] like figure 2 and Figure 4 As shown, the water inlet port 5 and the water outlet port 6 are respectively arranged at the ends of two different adjacent arc-shaped steel pipe sheets 1, and there is no connection channel 7 at the junction here, and the frozen water flowing in from the water inlet port 5 The liquid will completely flow through the entire steel pipe ring to ensure the fluidity of the refrigerant everywhere in the steel pipe ring.

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Abstract

The invention discloses a steel pipe ring piece for achieving quick freezing of a stratum and a machining method of the steel pipe ring piece, and belongs to the technical field of tunnel construction. The steel pipe ring piece comprises a plurality of arc-shaped steel pipe pieces which are sequentially connected to form the steel pipe ring piece. The rib plates are fixedly connected to the inner surfaces of the arc-shaped steel pipe pieces in the mode of being perpendicular to the inner surfaces of the arc-shaped steel pipe pieces, the length directions of the rib plates are arranged in the width directions of the arc-shaped steel pipe pieces, the multiple rib plates are arranged at intervals, and rib plate cavities are formed between the adjacent rib plates; the communication holes are formed in the rib plates in a penetrating manner and communicate the adjacent rib plate cavities; the sealing plate is used for sealing each rib plate cavity; the water inlet connector communicates with the rib plate cavity and is used for injecting refrigerating fluid into the rib plate cavity; and the water outlet connector communicates with the rib plate cavity and is used for leading out the refrigerating fluid in the rib plate cavity. The contact area of refrigerating fluid and the arc-shaped steel pipe pieces can be greatly increased, higher cooling capacity transmission efficiency is achieved, rapid development of the freezing wall can be achieved, and the development thickness of the freezing wall is increased.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and more specifically relates to a steel pipe ring piece for realizing rapid freezing of strata and a processing method thereof. Background technique [0002] With the rapid development of urban rail transit and river-crossing tunnel projects, the shield construction method has been widely used. When the shield machine excavates long distances or passes through sand and pebble strata or turns with a small radius, it will cause a lot of damage to the wire brush at the shield tail. Heavy wear will affect the water resistance of the shield tail wire brush. At this time, the shield tail wire brush must be replaced in time to ensure construction safety. [0003] At present, the commonly used method to replace the shield tail wire brush is the formation reinforcement method. Recently, some relevant units have developed a freezing method to replace the shield tail wire brush, but there are o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/15E21D9/00G01N33/2045G01M3/04B23P15/00
CPCE21D11/155E21D9/001G01N33/2045G01M3/04B23P15/00
Inventor 李聪廖正根饶为胜张晨晨唐天龙曾红波屈天葵
Owner 中交(南京)建设有限公司
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