CN103215947A - Novel freezing pipe - Google Patents
Novel freezing pipe Download PDFInfo
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- CN103215947A CN103215947A CN2013100470290A CN201310047029A CN103215947A CN 103215947 A CN103215947 A CN 103215947A CN 2013100470290 A CN2013100470290 A CN 2013100470290A CN 201310047029 A CN201310047029 A CN 201310047029A CN 103215947 A CN103215947 A CN 103215947A
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- freezing pipe
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a novel freezing pipe, which comprises a pipe body, a force yielding ring, spacing rings A, steel plates and angle iron. The novel freezing pipe is characterized in that the pipe body is provided with the force yielding ring; the force yielding ring is connected with the pipe body; the middle of the force yielding ring is provide with a groove capable of generating rigidity deformation; the two spacing rings A are welded in the pipe body; two steel plates are arranged between the two spacing rings A; the middle of each steel plate is provided with a hole; and the angle iron is welded with the two steel plates. The novel freezing pipe has the advantages that deformation can be generated along with temperature deformation, frost heaving deformation and well wall digging deformation; the novel freezing pipe has a certain flexibility, the freezing pipe can be prevented from generating a big stress due to the temperature deformation, the frost heaving deformation and the well wall digging deformation; the novel freezing pipe has the characteristics of good pressure resistance and tensile performance, simple structure, convenience in implementation and wide practicality in the artificial stratum freezing field; the groove part is not easily damaged by crushing or dragging; and the novel freezing pipe can be easily drilled into soil mass.
Description
Technical field
The present invention relates to a kind of freezing pipe, be particularly useful for artificial stratum freezing engineering.
Background technology
Freezing process is to pass through artificial cooling; make the water freezing in the ground stratum; the ground particle bond is become whole; promptly become frozen soil; increase the intensity and the stability of geotechnical body; getting in touch between blocking groundwater body and the engineering is so that carry out the reinforcing technique of Underground Engineering Excavation, building construction under the freezing curtain protective effect.Its essence is that the provisional change rock mechanical of utilization artificial cooling technology character is to reach the purpose of strengthening stratum.
As far back as earlier 1800s, the Russian just begins to utilize the weather freezing layer to dig the vertical gold mining in Siberia.Britain at first utilized artificial freezing technology to reinforce foundation ditch in 1862.German engineer Bo Cishu adopted freezing process to dig the pit shaft of dark 103m in Alba Reed colliery in 1883, and had obtained the patent of freeze-wellboring.From then on, this technology is widely used in the engineering construction of many countries.The U.S. often utilizes freezing process to carry out the reinforcing on basis; The former Soviet Union once repeatedly used freezing technology as the stratum consolidation measure in the subway tunnel construction; The Western European countries are applied to freezing process in the strengthening construction of bridges and culverts and construction of tunnel; Osaka, Japan Department of Communications adopts freezing process to freeze soil body volume and reaches 70m in No. five lineman's journey constructions of this city's subway
3, appear smoothly to guarantee the shield structure.China to nineteen fifty-five since using freezing process under the Polish expert's help and having set up Linxi, the Luan ventilating shaft of opening a mine, freeze-wellboring is applied widely in China.
When artificial freezing process strengthening stratum is widely used in caving ground pit shaft construction project, particularly promoted rapidly in the city underground engineering in other geotechnical engineering field.Abroad, the construction freezing method technology oneself become that a kind of feasible and weak soil that have competitiveness, unstable water bearing ground are reinforced, the effective ways of shutoff water.In the cave-in accident of Germany's appearance when three the Parallel Tunnel constructions in Eisbach river bed in 1991, all use the liquid nitrogen freezing method that soil layer is carried out at the position that subsides and reinforced, received good effect; In the subway expansion works frozen soil was carried out laboratory test in 1994 near railway terminal, German Dusseldorf urban centre, the saturation ratio of finding soil reaches 60% its intensity when above and anti-deformation just can meet the demands.And now along with the development of China's geotechnical engineering, the continuing to bring out of deep foundation and other underground municipal engineering, the freezing process space enclosing structure more and more comes into one's own with its unique advantages, and the Freezing stratum as rapid technology has entered China city underground engineering field comprehensively.
In artificial Freezing stratum as rapid, the fracture of freezing pipe problem is solved so far as yet fully, fracture of freezing pipe can cause the hypothermic saline in the freezing pipe to enter soil layer, causes great engineering accident, and the serious threat of fracture of freezing pipe accident engineering and personnel's safety and caused enormous economic loss.Freezing pipe in use can run into bigger temperature deformation, frost-heaving deformation and frost wall excavation deformation, easily cause fracture of freezing pipe, the patent disclosure of China Patent No. ZL200620071657.8 a kind of flexible freezing pipe linkage, be characterized between freezing pipe being provided with and allow the power ring, allow the middle part of power ring be provided with the groove or the boss that can produce the rigidity distortion.When adopting the freezing pipe tension of this kind linkage, its groove or boss can take place to stretch or compressive strain, and freezing pipe can elongate or shorten.Owing to adopt the groove or the boss of the freezing pipe of this kind linkage that bigger distortion can take place, so it can adapt to bigger temperature deformation, frost-heaving deformation and frost wall excavation deformation, but its groove or boss place are its weakness simultaneously, when bearing bigger pressure or pulling force, when compression that takes place when its groove or boss or stretcher strain are excessive, in the bottom of groove or the position that is connected with the power ring of allowing of the top of boss and groove or boss stress can take place concentrates, these positions are easily destroyed.And in the process of drilling, freezing pipe usually bears big pressure, easily ruptures in the position of adopting the top of the bottom of groove of freezing pipe of this kind linkage or boss and groove or boss to be connected with the power ring of allowing.When stretcher strain takes place, also easily rupture in the position of adopting the top of the bottom of groove of freezing pipe of this kind linkage or boss and groove or boss to be connected with the power ring of allowing.Simultaneously, take the freezing pipe that allows the power ring of boss form, in the process of drilling, its boss is difficult to squeeze into, and can bear geotechnical body enormous function power, causes drilling difficulty or freezing pipe to damage.
Summary of the invention
The objective of the invention is to provide a kind of and can when tension, extend, can shorten and can bear during pressurized the flexible freezing pipe of big pressure and pulling force in order to solve existing issue.
Purpose of the present invention can realize in the following manner: a kind of novel freezing pipe, comprise body, allow power ring, spacing ring A, steel plate and angle steel, also comprise spacing ring B, body is provided with and allows the power ring, allow the power ring be connected with body, allow the middle part of power ring be provided with the groove that can produce the rigidity distortion, be welded with two spacing ring A in the body, be provided with two block plates between two spacing ring A, the steel plate middle part is provided with hole, the welding of angle steel and two block plates does not contact between groove deforms front limit ring A and steel plate, and spacing ring A does not weld with steel plate.
The described power of allowing ring adopts the low temperature carbon steel to make.
The described power of allowing ring and body ways of connecting are welding.
The external diameter of described spacing ring A is the internal diameter of body.
The length of described angle steel adds that the thickness of two block plates equals the thickness that two spacings between the spacing ring A deduct a spacing ring A.
The external diameter of described spacing ring B is the internal diameter of body.
Described two spacing ring B are welded in body inside, between two block plates, divide the distance that is clipped to close spacing ring A less than groove half that maximum elastic stretching is out of shape can take place.
The present invention compared with prior art has following advantage: this novel freezing pipe can produce distortion with temperature deformation, frost-heaving deformation and borehole wall excavation deformation, has certain flexibility, avoid freezing pipe and produce bigger stress because of temperature deformation, frost-heaving deformation and borehole wall excavation deformation, resistance to compression and tensile property are good, the groove position is difficult for being damaged by pressure or drawing bad, and being easy to drill pierces the soil body, simple in structure, it is convenient to implement, and has practicality widely in artificial Freezing stratum as rapid field.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Fig. 3 is the schematic cross-section of freezing pipe of the present invention.
Among the figure: 1, body, 2, allow the power ring, 3, spacing ring A, 4, spacing ring B, 5, steel plate, 6, angle steel, 7, groove, 8, hole.
The specific embodiment
In conjunction with the accompanying drawings 1, accompanying drawing 2 is as follows: a kind of novel freezing pipe, comprise body 1, allow power ring 2, spacing ring A3, steel plate 5 and angle steel 6, also comprise spacing ring B4, body 1 is provided with and allows power ring 2, allow power ring 2 adopt the low temperature carbon steel to make, allow power ring 2 be connected with body 1, allow the middle part of power ring 2 be provided with the groove 7 that can produce the rigidity distortion, be welded with two spacing ring A3 and two spacing ring B4 in the body 1, be provided with two block plates 5 between two spacing ring A3, steel plate 5 middle parts are provided with hole 8, angle steel 6 and 5 welding of two block plates, between deforming front limit ring A3 and steel plate 5, groove 7 do not contact, spacing ring A3 does not weld with steel plate 5, the external diameter of described spacing ring A3 is the internal diameter of body 1, the length of described angle steel 6 adds that the thickness of two block plates 5 equals the thickness that two spacings between the spacing ring A3 deduct a spacing ring A3, the external diameter of described spacing ring B4 is the internal diameter of body 1, described two spacing ring B4 divide the distance that is clipped to close spacing ring A3 less than 7 of grooves half that maximum elastic stretching is out of shape can take place between two block plates 5.
Fig. 1 is a kind of embodiment of the present invention, in this embodiment, internal diameter and the external diameter with body 1 is identical respectively with external diameter to allow the internal diameter of power ring 2 straight lengths, allows the two ends and the body 1 direct counterpart welding of power ring 2, body 1 by butt weld with allow the straight length of power ring 2 link to each other.
Fig. 2 is another kind of embodiment of the present invention, in this embodiment, makes the external diameter of power ring 2 straight lengths identical with the internal diameter of body 1, will allow power ring 2 two ends be enclosed within the body 1, forms the lined overlap joint, and the employing welding is with body 1 and allow power ring 2 link together.
During use, feed pipe is inserted in this novel freezing pipe, be reserved with hole 8 in the steel plate 5, can insert for feed pipe.Drill or other be under pressure the effect situation the time, when the compressive strain of the groove 7 of this novel freezing pipe acquires a certain degree, pressure can pass to steel plate 5 and angle steel 6 by spacing ring A3, spacing ring A3, steel plate 5 and angle steel 6 can be shared partial pressure, because groove 7 enters the plastic stage very soon, spacing ring A3, the ratio regular meeting of the pressure that steel plate 5 and angle steel 6 are shared is risen, increase along with pressure, spacing ring A3, steel plate 5 and angle steel 6 will bear the pressure of the overwhelming majority, excessive compressive strain can not take place in groove 7, has avoided groove 7 to destroy because stress is excessive.When this novel freezing pipe tension, stretcher strain can take place in groove 7, reduced the tensile stress in this novel freezing pipe, better adaptive temperature distortion, frost-heaving deformation and frost wall excavation deformation, when originally the stretcher strain of the groove 7 of novel freezing pipe acquires a certain degree, pulling force can pass to steel plate 5 and angle steel 6 by spacing ring B4, spacing ring B4, steel plate 5 and angle steel 6 can be shared the part pulling force, because groove 7 enters the plastic stage very soon, spacing ring B4, the ratio regular meeting of the pulling force that steel plate 5 and angle steel 6 are shared is risen, increase along with pulling force, spacing ring B4, steel plate 45 and angle steel 6 will bear the pulling force of the overwhelming majority, excessive stretcher strain can not take place in groove 7, has avoided groove 7 to destroy because stress is excessive.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. novel freezing pipe, comprise body (1), allow power ring (2), spacing ring A(3), steel plate (5) and angle steel (6), it is characterized in that: body (1) is provided with and allows power ring (2), allow power ring (2) be connected with body (1), allow the middle part of power ring (2) be provided with the groove (7) that can produce the rigidity distortion, be welded with two spacing ring A(3 in the body (1)), two spacing ring A(3) be provided with two block plates (5) between, steel plate (5) middle part is provided with hole (8), angle steel (6) and two block plates (5) welding.
2. freezing pipe according to claim 1 is characterized in that: the described power of allowing ring (2) adopts the low temperature carbon steel to make.
3. freezing pipe according to claim 1 is characterized in that: the described power of allowing ring (2) is welding with body (1) ways of connecting.
4. freezing pipe according to claim 1 is characterized in that: external diameter described spacing ring A(3) is the internal diameter of body (1).
5. freezing pipe according to claim 1 is characterized in that: the length of described angle steel (6) adds that the thickness of two block plates (5) equals two spacing ring A(3) between spacing deduct a spacing ring A(3) thickness.
6. freezing pipe according to claim 1 is characterized in that: also comprise spacing ring B(4).
7. spacing ring B(4 according to claim 6), it is characterized in that: external diameter described spacing ring B(4) is the internal diameter of body (1).
8. spacing ring B(4 according to claim 6), it is characterized in that: described two spacing ring B(4) be welded in body (1) inside, be positioned between two block plates (5), divide to be clipped to close spacing ring A(3) distance half that the elastic stretching of maximum is out of shape can take place less than groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100470290A CN103215947A (en) | 2013-02-06 | 2013-02-06 | Novel freezing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100470290A CN103215947A (en) | 2013-02-06 | 2013-02-06 | Novel freezing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103215947A true CN103215947A (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100470290A Pending CN103215947A (en) | 2013-02-06 | 2013-02-06 | Novel freezing pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863596A (en) * | 2015-03-31 | 2015-08-26 | 中铁时代建筑设计院有限公司 | X-shaped freezing pipe and application method thereof in freezing construction |
| CN104453910B (en) * | 2013-09-22 | 2016-08-17 | 北京中煤矿山工程有限公司 | Freezing pipe device under a kind of tiltedly freezing hole |
| CN105888672A (en) * | 2014-09-02 | 2016-08-24 | 北京中煤矿山工程有限公司 | Inclined freezing hole external clamp type freezing tube lowering device |
| CN114483052A (en) * | 2022-01-26 | 2022-05-13 | 中国矿业大学 | Anti-deformation freezing pipe and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215726A (en) * | 1977-08-23 | 1980-08-05 | Masahiro Tagami | Protective unit for water pipes and a method for setting the unit |
| CN2205901Y (en) * | 1994-01-17 | 1995-08-23 | 高百争 | Buried corrugated compensator with limit function |
| CN2898535Y (en) * | 2006-05-16 | 2007-05-09 | 中国矿业大学 | Connector of flexible freezing pipe |
| CN201495537U (en) * | 2009-09-27 | 2010-06-02 | 北京中煤矿山工程有限公司 | Freezer with gas guiding structure |
| CN201561230U (en) * | 2009-12-17 | 2010-08-25 | 南京晨光东螺波纹管有限公司 | High-temperature floating ring angular expansion joint |
| CN102878381A (en) * | 2012-10-08 | 2013-01-16 | 江苏恒丰波纹管有限公司 | Maintenance-free external-pressing direct buried expansion joint |
| CN203096719U (en) * | 2013-02-06 | 2013-07-31 | 徐州市城市轨道交通有限责任公司 | Novel freezing pipe |
-
2013
- 2013-02-06 CN CN2013100470290A patent/CN103215947A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215726A (en) * | 1977-08-23 | 1980-08-05 | Masahiro Tagami | Protective unit for water pipes and a method for setting the unit |
| CN2205901Y (en) * | 1994-01-17 | 1995-08-23 | 高百争 | Buried corrugated compensator with limit function |
| CN2898535Y (en) * | 2006-05-16 | 2007-05-09 | 中国矿业大学 | Connector of flexible freezing pipe |
| CN201495537U (en) * | 2009-09-27 | 2010-06-02 | 北京中煤矿山工程有限公司 | Freezer with gas guiding structure |
| CN201561230U (en) * | 2009-12-17 | 2010-08-25 | 南京晨光东螺波纹管有限公司 | High-temperature floating ring angular expansion joint |
| CN102878381A (en) * | 2012-10-08 | 2013-01-16 | 江苏恒丰波纹管有限公司 | Maintenance-free external-pressing direct buried expansion joint |
| CN203096719U (en) * | 2013-02-06 | 2013-07-31 | 徐州市城市轨道交通有限责任公司 | Novel freezing pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453910B (en) * | 2013-09-22 | 2016-08-17 | 北京中煤矿山工程有限公司 | Freezing pipe device under a kind of tiltedly freezing hole |
| CN105888672A (en) * | 2014-09-02 | 2016-08-24 | 北京中煤矿山工程有限公司 | Inclined freezing hole external clamp type freezing tube lowering device |
| CN105888672B (en) * | 2014-09-02 | 2018-07-27 | 北京中煤矿山工程有限公司 | Freeze pipe device under a kind of oblique freezing hole external clamping |
| CN104863596A (en) * | 2015-03-31 | 2015-08-26 | 中铁时代建筑设计院有限公司 | X-shaped freezing pipe and application method thereof in freezing construction |
| CN104863596B (en) * | 2015-03-31 | 2017-11-07 | 中铁时代建筑设计院有限公司 | X-shaped freezing pipe and its application process in frozen construction |
| CN114483052A (en) * | 2022-01-26 | 2022-05-13 | 中国矿业大学 | Anti-deformation freezing pipe and construction method thereof |
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Application publication date: 20130724 |