CN104653185B - One freezes the adjustable frigo of segment length and freezing method thereof - Google Patents
One freezes the adjustable frigo of segment length and freezing method thereof Download PDFInfo
- Publication number
- CN104653185B CN104653185B CN201510041475.XA CN201510041475A CN104653185B CN 104653185 B CN104653185 B CN 104653185B CN 201510041475 A CN201510041475 A CN 201510041475A CN 104653185 B CN104653185 B CN 104653185B
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- pipe
- freezing pipe
- freezing
- interior
- saline
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- Expired - Fee Related
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- 238000007710 freezing Methods 0.000 title claims abstract description 242
- 230000008014 freezing Effects 0.000 title claims abstract description 242
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 47
- 239000011780 sodium chloride Substances 0.000 claims description 47
- 239000012267 brine Substances 0.000 claims description 7
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 17
- 238000010276 construction Methods 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- -1 close auxiliary tube Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
- E21D1/14—Freezing apparatus
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
Abstract
The invention discloses one and freeze the adjustable frigo of segment length and freezing method thereof, wherein frigo includes feed pipe, liquid back pipe, auxiliary tube, interior freezing pipe, outer freezing pipe, some toroidal membranes；Interior freezing pipe is arranged on inside outer freezing pipe, is sealed the top of interior freezing pipe and outer freezing pipe by upper sealing panel simultaneously, is sealed the bottom of outer freezing pipe by lower seal plate, and interior freezing pipe only connects in bottom with outer freezing pipe；In the axially spaced cavity being arranged on interior freezing pipe and the formation of outer freezing pipe of toroidal membrane, each toroidal membrane is uniformly arranged several check valve；Feed pipe, liquid back pipe stretch in interior freezing pipe from outside, and feed pipe extends downward bottom interior freezing pipe, and auxiliary tube stretches in the cavity of interior freezing pipe and the formation of outer freezing pipe from outside；The bottom of freezing pipe is provided with base cone outside.This frigo and freezing method substantially increase cold effective rate of utilization, reduce refrigeration plant start power, compared with bulk freezing device more environmental protection, economy, energy-conservation, efficient.
Description
Technical field
The present invention relates to the manual pipe jacking device in the fields such as mine construction engineering and city underground engineering and freezing method thereof, specifically one freezes the adjustable frigo of segment length and freezing method thereof, is particularly well-suited to the overlength, the ultra-deep freezing sinking shaft engineering that need in freezing process, freeze section length to be adjusted.
Background technology
In deep city underground engineering and mine construction engineering, when adopting frozen construction method, in the permanent lining, secondary lining section of completing, freezing pipe constantly provides cold to stratum, and this not only wastes a large amount of electric power, and the soil body near lining cutting can be made to produce frost heave, so that built lining cutting produces frost heaving failure, this is accomplished by the freezing pipe of the permanent lining, secondary lining section of completing part is become instlated tubular, and the cold to limit the lining cutting section of completing transmits, and creates favorable conditions for underground structure safety, construction economic, efficient.
At present, freezing pipe heat ray filter position is fixing relative to freezing pipe, namely wraps up certain heat-barrier material at freezing pipe section region exterior, i.e. parcel high density polyurethane or overcoat evacuation interlayer.But, owing to heat ray filter position is fixing relative to freezing pipe, after freezing engineering starts, freezing pipe heat ray filter position can not regulate, it is impossible to meets in the freezing engineering of underground, deep, the first cooling of demand can be heat insulation after to(for) freezing pipe.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provide a kind of be easy to regulate that freeze section length, simple in construction, cost be low, the frigo of economical and energy saving and freezing method thereof.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
One freezes the adjustable frigo of segment length, including feed pipe, liquid back pipe, auxiliary tube, interior freezing pipe, outer freezing pipe, some toroidal membranes；Interior freezing pipe is arranged on inside outer freezing pipe, sealed the top of interior freezing pipe and outer freezing pipe by upper sealing panel simultaneously, sealed the bottom of outer freezing pipe by lower seal plate, the bottom of interior freezing pipe is shorter than the bottom of outer freezing pipe, and interior freezing pipe only connects in bottom with outer freezing pipe；In the axially spaced cavity being arranged on interior freezing pipe and the formation of outer freezing pipe of toroidal membrane, toroidal membrane is perpendicular to interior freezing pipe and the axis of outer freezing pipe, and toroidal membrane and interior freezing pipe and outer freezing pipe are tightly connected, being uniformly arranged several check valve on each toroidal membrane, check valve only allows saline to flow from top to bottom；Feed pipe, liquid back pipe stretch in interior freezing pipe from outside, and feed pipe extends downward bottom interior freezing pipe, liquid back pipe is placed at interior freezing pipe top, and auxiliary tube stretches in the cavity of interior freezing pipe and the formation of outer freezing pipe from outside, and auxiliary tube is placed at the top of outer freezing pipe；The bottom of freezing pipe is provided with base cone outside.
A kind of based on the above-mentioned freezing method freezing the adjustable frigo of segment length, comprise the steps:
(1) freeze section length is the freezing process of whole frigo length: inject saline by the cavity that the inside freezing pipe of feed pipe and auxiliary tube and interior freezing pipe and outer freezing pipe are formed, fill interior freezing pipe and outer freezing pipe until saline after, close auxiliary tube, brine circulation system is constituted, it is achieved full section is freezed by feed pipe and liquid back pipe；
(2) freeze section length is the freezing process of n-th layer toroidal membrane following frigo length: in the cavity that in being regulated by feed pipe and auxiliary tube, freezing pipe and outer freezing pipe are formed, saline liquid level is to the position of n-th layer toroidal membrane, close auxiliary tube, brine circulation system is constituted, it is achieved segment section freezes by feed pipe and liquid back pipe.
In described step (2), in the cavity that in regulating, freezing pipe and outer freezing pipe are formed, saline liquid level is to the position of n-th layer toroidal membrane, in two kinds of situation, if the saline liquid level being respectively as follows: in the cavity of interior freezing pipe and the formation of outer freezing pipe is higher than n-th layer toroidal membrane, then by feed pipe back suction saline, until the saline liquid level in interior freezing pipe and outer freezing pipe is down to the position of n-th layer toroidal membrane；If the saline liquid level in the cavity that interior freezing pipe and outer freezing pipe are formed is lower than n-th layer toroidal membrane, saline is injected, until the saline liquid level in interior freezing pipe and outer freezing pipe rises to the position of n-th layer toroidal membrane in the cavity then formed by feed pipe and the inside freezing pipe of auxiliary tube and interior freezing pipe and outer freezing pipe.
When frozen ground is thicker, incipient stage, close after being full of saline in feed pipe, liquid back pipe and auxiliary tube, the mode adopting direct circulation starts frozen ground, can quick freezing upper formation, treat top closure of freezing wall and reach design thickness and mean temperature (being foundation based on field measurement temperature), along with the construction of shallow underground structural support completes, subsoil water soil pressure can be undertaken by supporting construction, and freezing pipe top is no longer necessary to provide cold to maintain frost wall intensity to stratum；
Subsequently, feed pipe back suction saline, the saline liquid level making inside and outside freezing pipe and auxiliary tube is down to supporting construction intensity and is reached the position of design, understratum still adopts the mode of direct circulation to freeze, now the check valve in auxiliary tube stops saline to enter, ensure to be complete in the auxiliary tube on supporting stratum and only have air, play good heat insulation effect.Limiting freezing pipe upper area and transmit cold to stratum, along with the further intensification of cutting depth, the forming method of other isolation section is ibid.Needs according to freeze section length adjustment fine degree, arrange several layers of toroidal membrane in the full section of frigo, so, just can realize the adjustment of freeze section length in whole freezing range.This frigo and freezing method substantially increase cold effective rate of utilization, reduce refrigeration plant start power, compared with bulk freezing device more environmental protection, economy, energy-conservation, efficient.
Beneficial effect: provided by the invention freeze the adjustable frigo of segment length and freezing method thereof, relative to prior art, have an advantage in that: the isolation section position of tradition frigo is fixing relative to freezing pipe, the present invention can in freezing process, needs according to construction speed and permanent lining, secondary lining support conditions, by regulating freezing pipe isolation section length, realize the adjustment effectively freezing segment length within the scope of full section freezing pipe, avoid the permanent lining, secondary lining section of completing, the Frozen earth expansion damage produced owing to excessively freezing and power wastage；Relative to existing freezing pipe and heat ray filter thereof, the present invention has the features such as structurally simple, economical energy-conservation, environmental friendliness
Accompanying drawing explanation
Fig. 1 is the front view that the present invention freezes the adjustable frigo of segment length；
Fig. 2 is the A-A section plan view of Fig. 1；
Fig. 3 is the B-B section plan view of Fig. 1.
In figure: 1, feed pipe, 2, liquid back pipe, 3, auxiliary tube, 4, upper sealing panel, 5, toroidal membrane, 6, outer freezing pipe, 7, interior freezing pipe, 8, lower seal plate, 9, base cone, 10, check valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
It is illustrated in figure 1 one and freezes the adjustable frigo of segment length, including feed pipe 1, liquid back pipe 2, auxiliary tube 3, interior freezing pipe 7, outer freezing pipe 6, some toroidal membranes 5；It is internal that interior freezing pipe 7 is arranged on outer freezing pipe 6, the top of freezing pipe 7 and outer freezing pipe 6 in simultaneously being sealed by upper sealing panel 4, sealed the bottom of outer freezing pipe 6 by lower seal plate 8, the bottom of interior freezing pipe 7 is shorter than the bottom of outer freezing pipe 6, and interior freezing pipe 7 only connects in bottom with outer freezing pipe 6；In the axially spaced cavity being arranged on interior freezing pipe 7 and outer freezing pipe 6 formation of toroidal membrane 5, toroidal membrane 5 is perpendicular to the axis of interior freezing pipe 7 and outer freezing pipe 6, and toroidal membrane 5 is tightly connected with interior freezing pipe 7 and outer freezing pipe 6, being uniformly arranged several check valve 10 on each toroidal membrane 5,10, check valve allows saline to flow from top to bottom；Feed pipe 1, liquid back pipe 2 stretch in interior freezing pipe 7 from outside, and feed pipe 1 extends downward bottom interior freezing pipe 7, liquid back pipe 2 is placed at interior freezing pipe 7 top, and auxiliary tube 3 stretches in the cavity of interior freezing pipe 7 and outer freezing pipe 6 formation from outside, and auxiliary tube 3 is placed at the top of outer freezing pipe 6；The bottom of freezing pipe 6 is provided with base cone 9 outside.
In design when freezing pipe 7 and outer freezing pipe 6, it is possible to adopt low-carbon (LC) seamless steel pipe；In order to conveniently produce and increase the length of whole frigo, it is possible to interior freezing pipe 7 and/or outer freezing pipe 6 are designed as multi-segment structure, the joint between each section adopts threaded or outer box cupling welding, to ensure union joint intensity, it is prevented that union joint fracture causes the accident.Base cone 9 adopts the steel plate consistent with outer freezing pipe 6 material to make.
When designing feed pipe 1, liquid back pipe 2 and auxiliary tube 3, it is possible to adopt polyethylene tube or steel pipe manufacturing；Equally, in order to conveniently produce and increase the length of whole freezing pipe, it is possible to feed pipe 1, liquid back pipe 2 and/or auxiliary tube 3 (mainly feed pipe 1) are designed as multi-segment structure, and the joint between each section adopts threaded or is welded to connect.Considering that the balance of hypothermic saline flow, the diameter design of feed pipe 1 and liquid back pipe 2 are same size, the diameter of auxiliary tube 3 is smaller than feed pipe 1, and its diameter is determined by the flow velocity of flowing water in Practical Project and flow.
As shown in Figure 2, toroidal membrane 5 is made up of the doughnut-shaped steel plate with check valve 10, toroidal membrane 5 had both limited saline between interior freezing pipe 7 and outer freezing pipe 6 and had flowed up, secure interior freezing pipe 7 in freezing pipe 6 outside again, the inside and outside edge of toroidal membrane 5 seals with interior freezing pipe 7 and outer freezing pipe 6 respectively and welds, consider the fastness that interior freezing pipe 7 is fixing, at least every two sections of outer freezing pipes 6 of (preferably each section) interior freezing pipe 7/ arrange one layer of toroidal membrane 5, for convenience of installing, toroidal membrane 5 position selects apart from the inside 50mm place of interior freezing pipe 7/ outer freezing pipe 6 joint.Check valve 10 seal weld is connected on toroidal membrane 5.When the toroidal membrane 5 present position degree of depth is bigger, it is necessary to bear significantly high hydrostatic pressure and flowing pressure, the steel plate thickness of toroidal membrane 5 should be strengthened, to ensure that it has enough bearing capacitys and rigidity.
Based on the above-mentioned freezing method freezing the adjustable frigo of segment length, comprise the steps:
1 freeze section length is the freezing process of whole frigo length: inject saline by the cavity that feed pipe 1 and the inside freezing pipe 7 of auxiliary tube 3 and interior freezing pipe 7 and outer freezing pipe 6 are formed, fill interior freezing pipe 7 and outer freezing pipe 6 until saline after, close auxiliary tube 3, brine circulation system is constituted, it is achieved full section is freezed by feed pipe 1 and liquid back pipe 2；
2 freeze section length are the freezing process of n-th layer toroidal membrane less than 5 frigo length: regulate in the cavity that interior freezing pipe 7 and outer freezing pipe 6 are formed saline liquid level to the position of n-th layer toroidal membrane 5 by feed pipe 1 and auxiliary tube 3, close auxiliary tube 3, brine circulation system is constituted, it is achieved segment section freezes by feed pipe 1 and liquid back pipe 2.In this step, in the cavity that in regulating, freezing pipe 7 and outer freezing pipe 6 are formed, saline liquid level is to the position of n-th layer toroidal membrane 5, in two kinds of situation, if the saline liquid level being respectively as follows: in the cavity of interior freezing pipe 7 and outer freezing pipe 6 formation is higher than n-th layer toroidal membrane 5, then by feed pipe 1 back suction saline, until the saline liquid level in interior freezing pipe 7 and outer freezing pipe 6 is down to the position of n-th layer toroidal membrane 5；If the saline liquid level in the cavity that interior freezing pipe 7 and outer freezing pipe 6 are formed is lower than n-th layer toroidal membrane 5, injection saline in the cavity then formed by feed pipe 1 and the inside freezing pipe 7 of auxiliary tube 3 and interior freezing pipe 7 and outer freezing pipe 6, until the saline liquid level in interior freezing pipe 7 and outer freezing pipe 6 rises to the position of n-th layer toroidal membrane 5.
Below in conjunction with an embodiment, the present invention is further illustrated.
One freeze section degree of depth needing frozen ground reaches 300m, and construction segment length is 6m, after namely often excavating 6m, waters building lining, then carries out next section of excavation again；Here the above-mentioned adjustable frigo of segment length that freezes is adopted to freeze.
In design, freezing pipe 7 adopts and freezes pipeline section splicing in one group of diameter × length=Φ 102mm × 4mm, designing outer freezing pipe 6 adopts the outer of one group of diameter × length=Φ 159mm × 6mm to freeze pipeline section (wall thickness is 6mm) splicing, inside freeze pipeline section and freeze outward pipeline section and be No. 20 low-carbon (LC) seamless steel pipes, inside freeze pipeline section and freeze outward the joint employing helicitic texture connection of pipeline section, higher than 100mm bottom outer freezing pipe 6 bottom the interior freezing pipe 7 being spliced, to guarantee that interior freezing pipe 7 connects in bottom with outer freezing pipe 6.
Design feed pipe 1 and liquid back pipe 2 all adopt the welded still pipe of one group of diameter × length=Φ 40mm × 3mm to splice, and auxiliary tube 3 adopts the welded still pipe of one group of diameter × length=Φ 14mm × 3mm to splice, and each weld should firmly connect, and ensure to seal；The feed pipe 1 bottom distance lower seal plate 8 about 100mm being spliced, the liquid back pipe 2 being spliced and auxiliary tube 3 bottom distance upper sealing panel 4 about 50mm.
In the cavity that interior freezing pipe 7 and outer freezing pipe 6 are formed, from top to bottom, designing one layer of toroidal membrane 5 every 3m, the external diameter of toroidal membrane 5 is 147mm, and internal diameter is 102mm, and material is steel plate；Being evenly arranged 4 check valves 10 on each toroidal membrane 5, check valve 10 is the straight check valve of latus rectum 8mm, external hexagonal opposite side distance 15mm, maximum working pressure 10MPa, and toroidal membrane 5 seals with interior freezing pipe 7 and outer freezing pipe 6 respectively and welds.
When full section is freezed, inject saline by feed pipe 1 and the inside freezing pipe 7 of auxiliary tube 3 and inside and outside freezing pipe 6 gap, fill after inside and outside freezing pipe until saline, close auxiliary tube 3, feed pipe 1 and liquid back pipe 2 constitute brine circulation system, it is achieved full section is freezed；After the first construction section permanent lining, secondary lining has been constructed and has been formed intensity, freezing pipe is no longer necessary to Rock And Soil towards periphery within the scope of top down 6m and provides cold, now, feed pipe 1 back suction saline, in being determined by the extraction salt water yield, between outer freezing pipe, saline liquid level is down to 6m depth location, then feed pipe 1 and liquid back pipe 2 recover direct circulation, check valve 10 owing to being positioned on the toroidal membrane 5 of 6m depth location limits saline and flows up, in causing, between outer freezing pipe, saline height keeps 6m depth location, in, between outer freezing pipe, the air within the scope of freezing pipe top down 6m is as excellent heat-barrier material, limit freezing pipe in this segment limit and transmit cold to stratum, the built lining cutting generation frost heaving failure of prevention also reduces cold unnecessary loss, now, freezing pipe effectively freezes segment length and becomes from degree of depth 6m to freezing pipe bottom section, namely do not excavate the soil body to continue normally to freeze；All the other each construction section lining cutting complete and form intensity after between inside and outside freezing pipe saline liquid level control method with the first construction section, saline liquid level between inside and outside freezing pipe is down to this construction section of completing lower end depth location, thus being adjusted to this construction section of completing lower end to freezing pipe bottom section by effectively freezing segment length, until whole Underground Construction completes, and then realize the adjustment to freeze section length effective in freezing pipe length range.
The above is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (3)
1. one kind is freezed the adjustable frigo of segment length, it is characterised in that: include feed pipe (1), liquid back pipe (2), auxiliary tube (3), interior freezing pipe (7), outer freezing pipe (6), some toroidal membranes (5)；It is internal that interior freezing pipe (7) is arranged on outer freezing pipe (6), the top of freezing pipe (7) and outer freezing pipe (6) in simultaneously being sealed by upper sealing panel (4), the bottom of outer freezing pipe (6) is sealed by lower seal plate (8), the bottom of interior freezing pipe (7) is higher than the bottom of outer freezing pipe (6), and interior freezing pipe (7) only connects in bottom with outer freezing pipe (6)；Toroidal membrane (5) is axially spaced is arranged on interior freezing pipe (7) and in cavity that outer freezing pipe (6) is formed, toroidal membrane (5) is perpendicular to interior freezing pipe (7) and the axis of outer freezing pipe (6), and toroidal membrane (5) is tightly connected with interior freezing pipe (7) and outer freezing pipe (6), being uniformly arranged several check valve (10) on each toroidal membrane (5), check valve (10) only allows saline to flow from top to bottom；Feed pipe (1), liquid back pipe (2) stretch in interior freezing pipe (7) from outside, and feed pipe (1) extends downward interior freezing pipe (7) bottom, liquid back pipe (2) is placed in interior freezing pipe (7) top, auxiliary tube (3) is in the cavity that interior freezing pipe (7) is stretched in outside and outer freezing pipe (6) is formed, and auxiliary tube (3) is placed in the top of outer freezing pipe (6)；The bottom of freezing pipe (6) is provided with base cone (9) outside.
2. one kind based on the freezing method freezing the adjustable frigo of segment length described in claim 1, it is characterised in that: comprise the steps:
(1) freeze section length is the freezing process of whole frigo length: by injecting saline in feed pipe (1) and auxiliary tube (3) cavity that inwardly freezing pipe (7) and interior freezing pipe (7) and outer freezing pipe (6) are formed, fill interior freezing pipe (7) and outer freezing pipe (6) until saline after, close auxiliary tube (3), brine circulation system is constituted, it is achieved full section is freezed by feed pipe (1) and liquid back pipe (2)；
(2) freeze section length is the freezing process of n-th layer toroidal membrane (5) following frigo length: in the cavity that in being regulated by feed pipe (1) and auxiliary tube (3), freezing pipe (7) and outer freezing pipe (6) are formed, saline liquid level is to the position of n-th layer toroidal membrane (5), close auxiliary tube (3), brine circulation system is constituted, it is achieved segment section freezes by feed pipe (1) and liquid back pipe (2).
3. freezing method according to claim 2, it is characterized in that: in described step (2), in the cavity that in regulating, freezing pipe (7) and outer freezing pipe (6) are formed, saline liquid level is to the position of n-th layer toroidal membrane (5), in two kinds of situation, if being respectively as follows: interior freezing pipe (7) and saline liquid level in cavity that outer freezing pipe (6) is formed being higher than n-th layer toroidal membrane (5), then by feed pipe (1) back suction saline, until the saline liquid level in interior freezing pipe (7) and outer freezing pipe (6) is down to the position of n-th layer toroidal membrane (5)；If the saline liquid level in the cavity that interior freezing pipe (7) and outer freezing pipe (6) are formed is lower than n-th layer toroidal membrane (5), the cavity interior injection saline that then inwardly freezing pipe (7) and interior freezing pipe (7) and outer freezing pipe (6) are formed by feed pipe (1) and auxiliary tube (3), until the saline liquid level in interior freezing pipe (7) and outer freezing pipe (6) rises to the position of n-th layer toroidal membrane (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510041475.XA CN104653185B (en) | 2015-01-27 | 2015-01-27 | One freezes the adjustable frigo of segment length and freezing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510041475.XA CN104653185B (en) | 2015-01-27 | 2015-01-27 | One freezes the adjustable frigo of segment length and freezing method thereof |
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| CN104653185A CN104653185A (en) | 2015-05-27 |
| CN104653185B true CN104653185B (en) | 2016-06-29 |
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| CN201510041475.XA Expired - Fee Related CN104653185B (en) | 2015-01-27 | 2015-01-27 | One freezes the adjustable frigo of segment length and freezing method thereof |
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| CN106761766A (en) * | 2016-11-28 | 2017-05-31 | 北京中煤矿山工程有限公司 | A kind of frigo and longitudinal temp measuring method for longitudinal thermometric |
| CN107191141B (en) * | 2017-07-11 | 2018-11-23 | 天津中财型材有限责任公司 | A kind of freezing pipe for tunnel boring |
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| CN109882187A (en) * | 2019-04-08 | 2019-06-14 | 中国矿业大学 | A kind of tunnel structure breakage freezing process method for repairing and constructing and dedicated elevation angle frigo |
| CN112376544B (en) * | 2019-05-22 | 2022-04-08 | 中国矿业大学(北京) | Freezing device and method for freezing stratum in sections |
| CN110566210B (en) * | 2019-09-04 | 2020-10-16 | 北京中煤矿山工程有限公司 | Horizontal freezer and freezing method for segmented time-staggered space |
| CN111365001B (en) * | 2020-03-02 | 2021-05-14 | 北京中煤矿山工程有限公司 | Freezer capable of realizing staged freezing and staged freezing method |
| CN113175327A (en) * | 2021-04-28 | 2021-07-27 | 安徽理工大学 | Freezing pipe of inclined shaft under condition of fast tunneling of fully-mechanized excavating machine and arrangement method of freezing pipe |
| CN115262526B (en) * | 2022-09-05 | 2023-08-22 | 上海建工集团股份有限公司 | Artificial stratum freezing device and method with adjustable freezing position |
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| CN104653185A (en) | 2015-05-27 |
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