CN102278116B - Device and method for manufacturing underground frozen wall in cold areas in winter - Google Patents
Device and method for manufacturing underground frozen wall in cold areas in winter Download PDFInfo
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- CN102278116B CN102278116B CN 201110105546 CN201110105546A CN102278116B CN 102278116 B CN102278116 B CN 102278116B CN 201110105546 CN201110105546 CN 201110105546 CN 201110105546 A CN201110105546 A CN 201110105546A CN 102278116 B CN102278116 B CN 102278116B
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Abstract
The invention relates to a device and method for manufacturing an underground frozen wall in cold areas in winter. The device is formed in such ways that: an outlet of a U-shaped pipe is connected with a water return radiator through an outlet sensor and a flowmeter, the water return radiator is connected with a water tank through a pipeline and a water tank inlet switch valve, the lateral face of the upper part of the water tank is provided with a water injection port, the water return radiator is connected with a water pump through a switch valve, a water tank water outlet pipeline and a filtering valve, the water tank is connected with the water tank water outlet pipeline through a water tank outlet switch valve, and the water pump is connected with an inlet of the U-shaped pipe through a water injection radiator, an air valve and an inlet sensor. Cold is obtained from the natural temperature outdoors in winter, the cold is conveyed into an underground frozen geologic body by taking a low-temperature glycol water solution as a circulating medium to further form a frozen wall instead of a liquid ammonia frozen geologic body; proved by tests, the temperature difference between the inlet and the outlet can reach 6 DEG C under the conditions that the outdoor temperature is -25 DEG C, and the flow rate is 18L/min; and the energy resources are saved, the engineering cost is reduced, and the benefits are increased.
Description
Technical field:
The present invention relates to a kind of underground cold-storage apparatus and cold-storage method, especially winter, cold district was with the cold device and method of sending into underground freezing plastid partly in winter.
Background technology:
In recent years, the making of the increasing underground freezing wall of requirement of engineering, freezing supporting is used in civil engineering, mining engineering usually.In the excavation construction of tunnel, vertical shaft or inclined shaft, it can play temporary lining and two kinds of effects of waterproof.Dark, the complicated underground construction of construction that freezing supporting is applicable to excavate.Freezing supporting basic principle is exactly the stratum around the wall of freezing hole, and interstitial water is build-up ice.By the freezing hole wall strength increase that makes, become impervious layer.Hole wall strength increase depends on cryogenic temperature.The first-phase paper of Shanxi water conservancy " the freezing support technology of underground construction ", the triumphant prestige of Britain island nineteen sixty has been excavated the circular deep foundation ditch of dark 40m, a diameter 40m, excavation is sand gravel, mud and the clay in safe scholar river entirely in the zone, has only adopted freezing supporting and does not adopt other supporting just to complete construction.When a Da Dong footpath tunnel boring machine of Britain's Caro is repaired, adopts freezing support technology that on every side sand and gravel are freezed, although bear the high water head of 25m, repair is still unaffected.The 36th the 27th phase of volume of Shanxi architecture paper " application of freezing process in the water supply project of county town, Shenmu County " for county town, Shenmu County water supply project basic condition, has proposed employing freezing process water blockoff scheme, has solved vertical shaft and has passed through deep layer quicksand section construction difficult problem.Electrical network and the 24th the 4th phase of volume of clean energy resource paper " the water-conveyance tunnel construction shaft freezes rear construction method research ", the freezing process To Construction of Silo is a kind of trial of hydraulic tunnel construction shaft construction, the utilization success of freezing process in Shenmu County's water supply project water-conveyance tunnel project, under freezing process solution complicated geological construction problem and frozen state, To Construction of Silo has certain experience to draw on and helps to utilizing later on.And the underground original position that will realize oil shale is exploited, and needs especially to make freezing wall.The paper of natural gas technical journal the 4th the 1st phase of volume in 2010 " oil shale electrical heating original position production technique progress ", the method that the freezing wall of present making is used is: after conventional brill completion, every mouthful of well is connected form closed circuit with ground catheter, and the high density polyethylene pipe that diameter is less is installed in the sleeve pipe of every mouthful of well, the ammonia spirits of-43 ℃ are passed through in the polyethylene pipe Injection Well, return to ground by the polyethylene pipe outside, the freezing liquid that returns to ground enters another mouthful well, circulates again.Along with the continuous circulation of freezing liquid, freezing zone constantly enlarges.At last, the freezing scope of every two freezing wells that are connected achieves a butt joint, and forms freezing wall.What Ying He joint operation Shell Co. Ltd used is exactly this method, and the ammonia spirit that the method is required-43 ℃ needs artificial cooling to obtain, therefore need to consume mass energy, causes freezing wall cost of manufacture very high.
Summary of the invention:
Purpose of the present invention is exactly for above-mentioned the deficiencies in the prior art, provides a kind of cold district making in winter underground freezing wall device;
Another object of the present invention is to provide a kind of method that winter, cold district was made underground freezing wall.
The objective of the invention is to be achieved through the following technical solutions:
Winter, cold district was made underground freezing wall device, to connect backwater radiators 4 by the outlet of U-shaped pipe 1 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, the upper side of water tank 8 is provided with water filling port 9, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, and water pump 13 connects and composes through water filling radiator 10, air valve 12 and entrance sensor 14 entrance with U-shaped pipe 1 by pipeline.
Winter, cold district was made the preparation method of underground freezing wall, it is characterized in that, comprised following order and step:
A, according to the limit of mining of geologic information delineation oil shale, beat at the inward flange of oil shale recovery scope and annotate cold well more than a bite, the spacing 2.5-3.5m of well and well, the diameter 130-300mm of well, well depth is beaten to by the base plate of producing oil shale according to geologic information;
B, U-shaped pipe 1 is lowered to annotates in cold well, and simple landfill;
C, the outlet of U-shaped pipe 1 is connected backwater radiators 4 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, water pump 13 is connected through water filling radiator 10, air valve 12 and entrance sensor by pipeline and is connected with the entrance of U-shaped pipe 1, and outlet sensor 2 is connected with the entrance sensor and is connected with recording instrument without paper respectively;
D, ethylene glycol is mixed with concentration is 55% the aqueous solution;
E, open water tank inlet switch valve 5, switch valve 6, water tank gate out switch valve 7 and air valve 12, the glycol water that configures is injected in water tank 8 by water filling port 9, and glycol water is filled with pipeline and water tank 8 rear pass gas check valve 12 and water tank inlet switch valve 5;
F, open water pump 13, glycol water enters U-shaped pipe 1 through water filling heat radiation 10 and entrance sensor 14, and the heat in shaft bottom is taken out of;
G, enter into through outlet sensor 2, flow meter 3 that 4 heat radiations of backwater radiator are laggard enters water pump 13 again, so move in circles.
Beneficial effect: obtain cold outdoor natural temperature from winter, send cold into underground freezing geologic body with the low-temperature glycol aqueous solution as circulatory mediator, and then form freezing wall, replaced the freezing underground geologic bodies of liquid ammonia, through overtesting, be-25 ℃ in outside temperature, flow is under the condition of 18L/min, and the temperature difference of access can reach 6 ℃.Save the energy, reduced engineering cost, improved benefit.
Description of drawings:
Accompanying drawing is the underground freezing wall device structure chart of cold district making in winter
1U shape pipe, 2 outlet sensors, 3 flow meters, 4 backwater radiators, 5 water tank inlet switch valves, 6 switch valves, 7 water tank gate out switch valves, 8 water tanks, 9 water filling ports, 10 water filling radiators, 11 strainer valves, 12 air valves, 13 water pumps, 14 entrance sensors.
The specific embodiment:
Be described in further detail below in conjunction with drawings and Examples:
Winter, cold district was made underground freezing wall device, to connect backwater radiators 4 by the outlet of U-shaped pipe 1 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, the upper side of water tank 8 is provided with water filling port 9, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, and water pump 13 connects and composes through water filling radiator 10, air valve 12 and entrance sensor 14 entrance with U-shaped pipe 1 by pipeline.
Winter, cold district was made the preparation method of underground freezing wall, it is characterized in that, comprised following order and step:
A, according to the limit of mining of geologic information delineation oil shale, beat at the inward flange of oil shale recovery scope and annotate cold well more than a bite, the spacing 2.5-3.5m of well and well, the diameter 130-300mm of well, well depth is beaten to by the base plate of producing oil shale according to geologic information;
B, U-shaped pipe 1 is lowered to annotates in cold well, U-shaped pipe 1 adopts diameter internal diameter 25-40mm usually, external diameter 32-45mm's, add the benzene plate in the therebetween of U-shaped pipe 1, and simple landfill;
C, the outlet of U-shaped pipe 1 is connected backwater radiators 4 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, water pump 13 is connected through water filling radiator 10, air valve 12 and entrance sensor by pipeline and is connected with the entrance of U-shaped pipe 1, and outlet sensor 2 is connected with the entrance sensor and is connected with recording instrument without paper respectively;
D, ethylene glycol is mixed with concentration is 55% the aqueous solution;
E, open water tank inlet switch valve 5, switch valve 6, water tank gate out switch valve 7 and air valve 12, the glycol water that configures is injected in water tank 8 by water filling port 9, and glycol water is filled with pipeline and water tank 8 rear pass gas check valve 12 and water tank inlet switch valve 5;
F, open water pump 13, glycol water enters U-shaped pipe 1 through water filling heat radiation 10 and entrance sensor 14, and the heat in shaft bottom is taken out of;
G, enter into through outlet sensor 2, flow meter 3 that 4 heat radiations of backwater radiator are laggard enters water pump 13 again, so move in circles.
Embodiment 1
Winter, cold district was made underground freezing wall device, to connect backwater radiators 4 by the outlet of U-shaped pipe 1 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, the upper side of water tank 8 is provided with water filling port 9, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, and water pump 13 connects and composes through water filling radiator 10, air valve 12 and entrance sensor 14 entrance with U-shaped pipe 1 by pipeline.
Winter, cold district was made the preparation method of underground freezing wall, it is characterized in that, comprised following order and step:
A, according to the limit of mining of geologic information delineation oil shale, beat at the inward flange of oil shale recovery scope and annotate cold well more than a bite, the spacing 2.5m of well and well, the diameter 160mm of well, well depth is beaten to by the base plate of producing oil shale according to geologic information;
B, U-shaped pipe 1 is lowered to annotates in cold well, the U-shaped pipe adopts diameter internal diameter 25mm, adds the benzene plate in the therebetween of U-shaped pipe 1, and simple landfill;
C, the outlet of U-shaped pipe 1 is connected backwater radiators 4 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, water pump 13 is connected through water filling radiator 10, air valve 12 and entrance sensor by pipeline and is connected with the entrance of U-shaped pipe 1, and outlet sensor 2 is connected with the entrance sensor and is connected with recording instrument without paper respectively;
D, ethylene glycol is mixed with concentration is 55% the aqueous solution;
E, open water tank inlet switch valve 5, switch valve 6, water tank gate out switch valve 7 and air valve 12, the glycol water that configures is injected in water tank 8 by water filling port 9, and glycol water is filled with pipeline and water tank 8 rear pass gas check valve 12 and water tank inlet switch valve 5;
F, open water pump 13, glycol water enters U-shaped pipe 1 through water filling heat radiation 10 and entrance sensor 14, and the heat in shaft bottom is taken out of;
G, enter into through outlet sensor 2, flow meter 3 that 4 heat radiations of backwater radiator are laggard enters water pump 13 again, so move in circles.
Winter, cold district was made underground freezing wall device, to connect backwater radiators 4 by the outlet of U-shaped pipe 1 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, the upper side of water tank 8 is provided with water filling port 9, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, and water pump 13 connects and composes through water filling radiator 10, air valve 12 and entrance sensor 14 entrance with U-shaped pipe 1 by pipeline.
Winter, cold district was made the preparation method of underground freezing wall, it is characterized in that, comprised following order and step:
A, according to the limit of mining of geologic information delineation oil shale, beat at the inward flange of oil shale recovery scope and annotate cold well more than a bite, the spacing 3.5m of well and well, the diameter 300mm of well, well depth is beaten to by the base plate of producing oil shale according to geologic information;
B, U-shaped pipe 1 is lowered to annotates in cold well, U-shaped pipe 1 adopts diameter internal diameter 40mm, adds the benzene plate in the therebetween of U-shaped pipe 1, and simple landfill;
C, the outlet of U-shaped pipe 1 is connected backwater radiators 4 through outlet sensor 2, flow meter 3, backwater radiator 4 is connected with water tank inlet switch valve by pipeline and is connected with water tank 8, backwater radiator 4 is connected with strainer valve through switch valve 6, radiator drain line and is connected with water pump 13, water tank 8 is connected with the radiator drain line through water tank gate out switch valve 7, water pump 13 is connected through water filling radiator 10, air valve 12 and entrance sensor by pipeline and is connected with the entrance of U-shaped pipe 1, and outlet sensor 2 is connected with the entrance sensor and is connected with recording instrument without paper respectively;
D, ethylene glycol is mixed with concentration is 55% the aqueous solution;
E, open water tank inlet switch valve 5, switch valve 6, water tank gate out switch valve 7 and air valve 12, the glycol water that configures is injected in water tank 8 by water filling port 9, and glycol water is filled with pipeline and water tank 8 rear pass gas check valve 12 and water tank inlet switch valve 5;
F, open water pump 13, glycol water enters U-shaped pipe 1 through water filling heat radiation 10 and entrance sensor 14, and the heat in shaft bottom is taken out of;
G, enter into through outlet sensor 2, flow meter 3 that 4 heat radiations of backwater radiator are laggard enters water pump 13 again, so move in circles.
Claims (3)
- one kind winter cold district make underground freezing wall device, it is characterized in that, through outlet sensor (2) by the outlet of U-shaped pipe (1), flow meter (3) connects backwater radiator (4), backwater radiator (4) is connected 5 by pipeline with water tank inlet switch valve) be connected with water tank (8), the upper side of water tank (8) is provided with water filling port (9), backwater radiator (4) is through another switch valve (6), the radiator drain line is connected 11 with strainer valve) be connected with water pump (13), water tank (8) is connected with the radiator drain line through water tank gate out switch valve (7), water pump (13) by pipeline through water filling radiator (10), air valve (12) and entrance sensor (14) connect and compose with the entrance of U-shaped pipe (1).
- 2. according to the underground freezing wall device of cold district making in winter claimed in claim 1, it is characterized in that, outlet sensor (2) is connected 14 with the entrance sensor) connect respectively recording instrument without paper, the range of outlet sensor (2) and entrance sensor (14) is-50 ℃ to+50 ℃, and the maximum range of flow meter (3) is 30L/min.
- 3. according to the method that winter, cold district was made the underground freezing wall of underground freezing wall device making claimed in claim 1, it is characterized in that, comprise the following steps:A, according to the limit of mining of geologic information delineation oil shale, beat at the inward flange of oil shale recovery scope and annotate cold well more than a bite, the spacing 2.5-3.5m of well and well, the diameter 130-300mm of well, well depth is beaten to by the base plate of producing oil shale according to geologic information;B, U-shaped pipe (1) is lowered to annotates in cold well;c, with the outlet of U-shaped pipe (1) through outlet sensor (2), flow meter (3) connects backwater radiator (4), backwater radiator (4) is connected 5 by pipeline with water tank inlet switch valve) be connected with water tank (8), backwater radiator (4) is through another switch valve (6), the radiator drain line is connected 11 with strainer valve) be connected with water pump (13), water tank (8) is connected with the radiator drain line through water tank gate out switch valve (7), water pump (13) by pipeline through water filling radiator (10), air valve (12) is connected 14 with the entrance sensor) be connected with the entrance of U-shaped pipe (1), outlet sensor (2) is connected 14 with the entrance sensor) be connected with recording instrument without paper respectively,D, ethylene glycol is mixed with concentration is 55% the aqueous solution;E, open water tank inlet switch valve (5), another switch valve (6), water tank gate out switch valve (7) and air valve (12), the glycol water that configures is injected in water tank (8) by water filling port (9), and glycol water closes gas check valve (12) and water tank inlet switch valve (5) after filling with pipeline and water tank (8);F, open water pump (13), glycol water enters U-shaped pipe (1) through water filling radiator (10) and entrance sensor (14), and the heat in shaft bottom is taken out of;G, enter into through outlet sensor (2), flow meter (3) that backwater radiator (4) heat radiation is laggard enters water pump (13) again, so move in circles.
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Families Citing this family (4)
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| CN107587529B (en) * | 2017-09-13 | 2019-04-30 | 吉林大学 | Gas-water pressure balanced type underground anti-seepage sealing technique and equipment used |
| CN108457306B (en) * | 2018-06-20 | 2023-08-01 | 北京城建集团有限责任公司 | Pile tube cooperated vertical side wall horizontal bottom-making basin-shaped freezing water stop construction method for 4/6 pilot tunnel PBA construction method |
| CN108457307B (en) * | 2018-06-20 | 2023-07-25 | 北京城建集团有限责任公司 | Basin-shaped freezing water stop construction method for horizontal bottom making of vertical side wall of pilot tunnel of 4/6/8 pilot tunnel PBA construction method |
| CN108442416B (en) * | 2018-06-20 | 2023-07-25 | 北京城建集团有限责任公司 | External expansion pilot tunnel vertical side wall horizontal bottom-making basin-shaped freezing water stop construction method for 8 pilot tunnel PBA construction method |
Citations (4)
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|---|---|---|---|---|
| US3943722A (en) * | 1970-12-31 | 1976-03-16 | Union Carbide Canada Limited | Ground freezing method |
| CN1270271A (en) * | 2000-04-11 | 2000-10-18 | 山东科技大学防水建材研究所 | Anti-leakage compound wall of freeze well and its construction method |
| CN1483902A (en) * | 2003-05-29 | 2004-03-24 | 中国矿业大学 | Method of distributing freezers for speeding up freezing soil and rock in local area |
| CN101694159A (en) * | 2009-10-22 | 2010-04-14 | 中煤第一建设公司第四十九工程处 | Technology for rapidly constructing air shaft under chill condition and process for sinking vertical shaft pit shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6796139B2 (en) * | 2003-02-27 | 2004-09-28 | Layne Christensen Company | Method and apparatus for artificial ground freezing |
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Patent Citations (4)
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|---|---|---|---|---|
| US3943722A (en) * | 1970-12-31 | 1976-03-16 | Union Carbide Canada Limited | Ground freezing method |
| CN1270271A (en) * | 2000-04-11 | 2000-10-18 | 山东科技大学防水建材研究所 | Anti-leakage compound wall of freeze well and its construction method |
| CN1483902A (en) * | 2003-05-29 | 2004-03-24 | 中国矿业大学 | Method of distributing freezers for speeding up freezing soil and rock in local area |
| CN101694159A (en) * | 2009-10-22 | 2010-04-14 | 中煤第一建设公司第四十九工程处 | Technology for rapidly constructing air shaft under chill condition and process for sinking vertical shaft pit shaft |
Non-Patent Citations (2)
| Title |
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| 冻结法在神木县城供水工程中的应用;尚小军;《山西建筑》;20100930;第36卷(第27期);150-151 * |
| 尚小军.冻结法在神木县城供水工程中的应用.《山西建筑》.2010,第36卷(第27期),150-151. |
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