CN107290981B - Freezing ring control system used in tunnel engineering freezing method construction - Google Patents
Freezing ring control system used in tunnel engineering freezing method construction Download PDFInfo
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- CN107290981B CN107290981B CN201610197804.4A CN201610197804A CN107290981B CN 107290981 B CN107290981 B CN 107290981B CN 201610197804 A CN201610197804 A CN 201610197804A CN 107290981 B CN107290981 B CN 107290981B
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- Prior art keywords
- freezing
- data transmission
- data
- holes
- data acquisition
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- 230000008014 freezing Effects 0.000 title claims abstract description 104
- 238000007710 freezing Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 239000012267 brine Substances 0.000 claims description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 8
- 238000010257 thawing Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a freezing ring control system used in the construction of a tunnel engineering freezing method, which comprises freezing holes and tunnel openings, wherein the freezing holes are distributed around the tunnel openings, freezing rings are formed around the freezing holes, the freezing rings are freezing bodies formed by water-containing soil layers, data transmission lines are connected among the freezing holes, the data acquired by the data acquisition instrument are transmitted and fed back to the data acquisition device through the data transmission line, the data transmission line is connected with the transformer substation, the data acquisition device is connected with the freezer switch through the data transmission line, and the freezer switch is connected with the data display control terminal through the data transmission line. The invention solves the problems that the size of a freezing ring is controlled and regulated in real time according to the related conditions of the current ground pressure and the water level in the construction process of the freezing method, and related freezing and safety parameters are collected, so that the shutdown monitoring of a freezing engineering unit and the control of the freezing cold quantity, the flow, the temperature and the ammonia concentration are reasonably allocated.
Description
Technical Field
The invention relates to the technical field of underground engineering construction artificial stratum freezing facility equipment, in particular to a freezing ring control system for tunnel engineering freezing method construction.
Background
The existing artificial stratum freezing technology is a method for forming a freezing body by utilizing an artificial freezing method to freeze an aquifer in soil so as to resist the formation of a supporting body by pressing and form a water-impermeable layer. The current formation freezing technology is due to the change of the stress in the soil and the surrounding rock stress caused by the change of the hydrothermal state. The soil freezing technology is widely applied at home and abroad, and is generally applied to soft soil tunnel subways, pier foundations, mines, underground engineering and the like. In the actual freezing process of tunnel engineering, the freezing holes are generally horizontally arranged, vertically arranged or alternately arranged in horizontal and inclined directions, and when encountering a curved tunnel line, a supporting body for supporting the freezing holes is needed. The frost heaving and sinking thawing are two big hazards to the environment in tunnel engineering, the measures adopted for the frost heaving are intermittent freezing to control the development of freezing walls, manual excavation of pressure relief grooves to reduce horizontal frost heaving force and unnecessary water in soil to reduce the volume of the unnecessary frost soil, and the method for accelerating the formation thawing speed and formation grouting is generally adopted for sinking thawing. The traditional freezing method mainly controls the size of the freezing ring manually, but the temperature field, the displacement field and the stress field of the underground structure are complex to change, and the freezing period is generally longer, so that the freezing depth and the size of the freezing ring are difficult to control effectively. For long-distance horizontal freezing, repeated drilling and freezing can be involved, so that the construction working condition is complex, and the construction period is increased. Therefore, the freezing ring control system during construction by using the tunnel engineering freezing method can effectively realize signal transmission and feedback of brine level alarm, starting and stopping of a refrigerator, brine temperature and flow and ammonia concentration, monitor whether the whole system is normal, control feedback of pipeline temperature, brine line level and ammonia concentration value in real time, provide data for cold energy allocation to control the size of the freezing ring, save engineering cost, provide guarantee for system safety by real-time management, perfect man-machine interaction and improve management level.
Disclosure of Invention
The invention solves the problems that the size of a freezing ring is controlled and regulated in real time according to the related conditions of the current ground pressure and the water level in the construction process of the freezing method, and related freezing and safety parameters are collected, so that the shutdown monitoring of a freezing engineering unit is realized, and the control of freezing cold quantity, flow, temperature and ammonia concentration is reasonably allocated, thereby ensuring the safety of a pipeline without leakage and effectively and rapidly eliminating safety accidents in time.
The technical scheme adopted by the invention is as follows:
the invention discloses a freezing ring control system used in the construction of a tunnel engineering freezing method, which comprises freezing holes and tunnel openings, wherein the freezing holes are distributed around the tunnel openings, freezing rings are formed around the freezing holes, the freezing rings are freezing bodies formed by a water-containing soil layer, data transmission lines are arranged among the freezing holes and are connected, data detection acquisition devices are uniformly distributed on the freezing holes, data acquired by the data acquisition devices are conveyed and fed back to a data acquisition device through the data transmission lines, the data transmission lines are connected with a transformer substation, the data acquisition device is connected with a freezer switch through the data transmission lines, and the freezer switch is connected with a data display control terminal through the data transmission lines.
The freezing ring control system used in the construction of the tunnel engineering freezing method comprises a freezing hole and a tunnel portal.
The freezing holes are distributed around the tunnel portal.
And a freezing ring is formed around the freezing hole.
The frozen body is formed by the water-containing soil layer of the frozen ring.
And the freezing holes are connected by a data transmission line.
And data detection acquisition instruments are uniformly distributed on the freezing holes.
And the data acquired by the data acquisition instrument is transmitted and fed back to the data acquisition device through the data transmission line.
The data transmission line is connected with the transformer substation.
The data acquisition device is connected with the freezer switch through a data transmission line.
The freezer switch is connected with the data display control terminal through a data transmission line.
Compared with the prior art, the invention has the following beneficial effects:
the freezing ring control system for the tunnel engineering freezing method can effectively realize the signal transmission and feedback of brine tank position alarm, the starting and stopping of a refrigerator, the brine temperature, the flow and the ammonia concentration, monitor whether the whole system is normal or not, control the pipeline temperature, the brine tank liquid level and the ammonia concentration in real time and deserve feedback, provide data for cold energy allocation to control the size of the freezing ring, save engineering cost, provide guarantee for system safety by real-time management, perfect man-machine interaction and improve management level.
The freezing holes are uniformly distributed with data detection collectors, so that the temperature and flow of brine and the concentration of ammonia can be detected; the data transmission line is adopted to connect all subsystems, so that real-time data acquisition is realized, and automatic monitoring and scheduling are realized; the freezing device switch controls the freezing rate in real time according to the complex changes of the temperature field, the displacement field and the stress field of the underground structure; the data display control terminal can monitor the running state of equipment in each subsystem, collect freezing and safety parameters, timely adjust and feed back engineering working conditions, and facilitate man-machine interaction.
The invention can be suitable for the freezing construction of the ultra-large section tunnel excavation, can be suitable for tunnel engineering of various complex lines by adopting a horizontal and inclined combined mode, has flexible arrangement form of freezing holes without repeated drilling, can effectively resist the surrounding stress of soil body by timely adjusting the size of a freezing ring when frost heaving or sinking and thawing occurs, and can not cause conditions such as ground rising and the like.
The control system for the freezing ring can be widely applied when the tunnel engineering freezing method is implemented.
Drawings
Fig. 1 is a diagram showing a freezing hole distribution diagram of a freezing ring control system in the construction of a tunnel engineering freezing method.
Fig. 2 is a system diagram of a freeze ring control system in the construction of a tunnel engineering freezing method.
In the figure, 1, freezing holes; 101. a data detection collector; 2. freezing the ring; 3. a tunnel portal; 4. a data transmission line; 5. a transformer station; 6. a data acquisition device; 7. a freezer switch; 8. and the data display control terminal.
Detailed Description
Referring to fig. 1, a freezing ring control system for a tunnel engineering freezing method comprises freezing holes 1 and tunnel openings 3, wherein the freezing holes 1 are distributed around the tunnel openings 3, freezing rings 2 are formed around the freezing holes 1, the freezing rings 2 are freezing bodies formed by a water-containing soil layer by reducing the temperature of soil body through the freezing holes, the freezing bodies can resist ground pressure and isolate erosion of groundwater, and data transmission lines 4 are connected between the freezing holes 2.
Referring to fig. 2, the freezing holes 1 are uniformly provided with data detecting and collecting devices 101, data collected by the data detecting and collecting devices 101 are conveyed and fed back to a data collecting device 6 through a data transmission line 4, the data transmission line 4 is connected with a transformer substation 5, the data collecting device 6 is connected with a freezer switch 7 through the data transmission line 4, and the freezer switch 7 is connected with a data display control terminal 8 through the data transmission line.
Claims (1)
1. A frozen ring control system for tunnel engineering when freezing method construction, its characterized in that: the freezing holes are distributed around the tunnel portal, freezing rings are formed around the freezing holes, the freezing rings are freezing bodies formed by water-containing soil layers, and the freezing holes are connected through a data transmission line;
the freezing holes are uniformly provided with data acquisition devices, data acquired by the data acquisition devices are transmitted and fed back to the data acquisition devices through data transmission lines, the data transmission lines are connected with a transformer substation, the data acquisition devices are connected with a freezer switch through the data transmission lines, and the freezer switch is connected with a data display control terminal through the data transmission lines; the data acquisition instrument is used for detecting the temperature and flow of the brine and the concentration of the ammonia gas; the freezer switch is used for controlling the freezing rate in real time according to the changes of the temperature field, the displacement field and the stress field of the underground structure; the data display control terminal is used for monitoring the running state of equipment in each subsystem, collecting freezing and safety parameters, and timely adjusting and feeding back engineering working conditions, so that man-machine interaction is facilitated;
the combined mode of the horizontal and the inclined is suitable for tunnel engineering of various complicated lines, and when frost heaving or sinking and thawing occurs, the surrounding stress of soil is effectively resisted by adjusting the size of the frost ring, so that the ground surface bulge is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197804.4A CN107290981B (en) | 2016-03-31 | 2016-03-31 | Freezing ring control system used in tunnel engineering freezing method construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197804.4A CN107290981B (en) | 2016-03-31 | 2016-03-31 | Freezing ring control system used in tunnel engineering freezing method construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107290981A CN107290981A (en) | 2017-10-24 |
| CN107290981B true CN107290981B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610197804.4A Active CN107290981B (en) | 2016-03-31 | 2016-03-31 | Freezing ring control system used in tunnel engineering freezing method construction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110132347A (en) * | 2019-04-25 | 2019-08-16 | 中铁十二局集团有限公司 | The construction monitoring method in the tunnel based on frozen construction |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504320A (en) * | 2009-03-17 | 2009-08-12 | 安徽理工大学 | Method for monitoring freezing wall temperature field by resistivity |
| CN201401163Y (en) * | 2009-03-17 | 2010-02-10 | 安徽理工大学 | System monitoring temperature field of frost wall by electrical resistivity |
| CN102678178A (en) * | 2012-04-27 | 2012-09-19 | 华中科技大学 | Safety early-warning analyzer for freezing construction for connecting aisle of tunnel and working method of safety early-warning analyzer |
| CN103015402A (en) * | 2012-12-27 | 2013-04-03 | 南京林业大学 | Construction method for inhibiting frost heaving and thaw collapse of horizontally frozen end through cement-soil reinforcement method |
| CN103115935A (en) * | 2013-01-25 | 2013-05-22 | 安徽理工大学 | Method for monitoring thawing process of frozen wall through optical fiber temperature sensing |
| CN103397903A (en) * | 2013-08-22 | 2013-11-20 | 煤炭工业合肥设计研究院 | Cooling device for underground refuge chamber |
| CN104405400A (en) * | 2014-10-08 | 2015-03-11 | 海南大学 | Method for arranging cup-shaped horizontal freezing holes in end of large-diameter shield tunnel |
| JP2015151813A (en) * | 2014-02-18 | 2015-08-24 | 清水建設株式会社 | Frost heaving load suppressing method for freezing method |
-
2016
- 2016-03-31 CN CN201610197804.4A patent/CN107290981B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504320A (en) * | 2009-03-17 | 2009-08-12 | 安徽理工大学 | Method for monitoring freezing wall temperature field by resistivity |
| CN201401163Y (en) * | 2009-03-17 | 2010-02-10 | 安徽理工大学 | System monitoring temperature field of frost wall by electrical resistivity |
| CN102678178A (en) * | 2012-04-27 | 2012-09-19 | 华中科技大学 | Safety early-warning analyzer for freezing construction for connecting aisle of tunnel and working method of safety early-warning analyzer |
| CN103015402A (en) * | 2012-12-27 | 2013-04-03 | 南京林业大学 | Construction method for inhibiting frost heaving and thaw collapse of horizontally frozen end through cement-soil reinforcement method |
| CN103115935A (en) * | 2013-01-25 | 2013-05-22 | 安徽理工大学 | Method for monitoring thawing process of frozen wall through optical fiber temperature sensing |
| CN103397903A (en) * | 2013-08-22 | 2013-11-20 | 煤炭工业合肥设计研究院 | Cooling device for underground refuge chamber |
| JP2015151813A (en) * | 2014-02-18 | 2015-08-24 | 清水建設株式会社 | Frost heaving load suppressing method for freezing method |
| CN104405400A (en) * | 2014-10-08 | 2015-03-11 | 海南大学 | Method for arranging cup-shaped horizontal freezing holes in end of large-diameter shield tunnel |
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| CN107290981A (en) | 2017-10-24 |
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