CN109469489B - Method and device for treating harmful gas in excavation bin of large-diameter slurry shield machine - Google Patents
Method and device for treating harmful gas in excavation bin of large-diameter slurry shield machine Download PDFInfo
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- CN109469489B CN109469489B CN201810784552.4A CN201810784552A CN109469489B CN 109469489 B CN109469489 B CN 109469489B CN 201810784552 A CN201810784552 A CN 201810784552A CN 109469489 B CN109469489 B CN 109469489B
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- air inlet
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 45
- 239000002002 slurry Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000011010 flushing procedure Methods 0.000 claims description 52
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000004200 deflagration Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 5
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000004220 aggregation Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a method and a device for treating harmful gas in a large-diameter slurry shield machine excavation bin, wherein an exhaust pipeline is led out from the top of the shield machine excavation bin, the exhaust pipeline is connected with a pumping pipeline which extends to the outside of a tunnel, an air inlet pipeline is led out from the top of a shield machine air cushion bin, and the air inlet pipeline is connected with a shield machine air compressor system. When the liquid level sensor of the excavation bin of the shield machine monitors the liquid level of the excavation bin to be reduced, the existence of harmful gas aggregation in the excavation bin is proved. The air compressor system of the shield machine pressurizes an air cushion cabin of the shield machine through an air inlet pipeline, and harmful gas is discharged through an exhaust pipeline. The method solves the engineering problem that harmful gas in the excavation bin can not be discharged due to aggregation in the construction process of the slurry shield river crossing tunnel, and reduces the construction risk.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to a method and a device for treating harmful gas in an excavation bin of a large-diameter slurry shield machine.
Background
With the continuous deep modern construction, the urban process in China enters a rapid development mode, the utilization and development of urban underground space are becoming the important points of modern construction and sustainable development, and more tunnel construction in recent years needs to penetrate through stratum containing harmful gas. When the shield tunneling machine encounters such a stratum, harmful gas is released, and if the harmful gas is not effectively treated, serious risk hazards such as poisoning, choking, deflagration and the like can be caused. The method mainly adopted for the construction of the harmful gas stratum tunnel at present comprises the following steps: (1) altering the design route. And (2) constructing by adopting an open cut method. (3) surface drilling exhaust gas.
Compared with mountain and subway tunnels, the river-crossing tunnel has smaller construction space, reduced geological exploration precision, difficult discovery of shallow harmful gas buried in the stratum, and difficult decompression and exhaust operation before pipe insertion on the river surface, and can not adopt a conventional construction method for coping with the stratum of the harmful gas. In the operation of limited space, harmful gas is easy to gather at the top of the excavation bin, and the stability of the face is affected, so that deflagration accidents are caused. The invention can satisfactorily solve the problems and reduce the harm of harmful gas to shield construction.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction technology which can effectively reduce potential safety hazards caused by harmful gas aggregation in the construction process of a river-crossing tunnel, reduce construction difficulty, and has the advantages of simple and efficient working process, high safety and low cost.
In order to solve the technical problems, the invention provides a method and a device for treating harmful gas in an excavation bin of a large-diameter slurry shield machine, which are characterized in that: when the liquid level sensor of the excavation bin monitors that the liquid level of the excavation bin is reduced and harmful gas exists, the original air compressor system of the shield machine is utilized to pressurize the air cushion bin through the air inlet pipeline, and the harmful gas in the excavation bin is discharged through the exhaust pipeline. The concrete structure comprises: the device comprises an air inlet pipeline, an air inlet valve a, an air inlet valve b, an air inlet flushing pipeline, an air inlet flushing valve, an air inlet overflow valve, an air inlet pressure gauge, an air inlet speed regulating valve, an air inlet harmful gas sensor, an air exhaust pipeline, an air exhaust valve a, an air exhaust valve b, an air exhaust valve c, an air exhaust flushing pipeline, an air exhaust flushing valve, a mud buffer tank, a liquid level mirror, a mud discharge valve, an air exhaust overflow valve, an air exhaust pressure gauge, an air exhaust speed regulating valve and an air exhaust harmful gas sensor. And (3) leading out an exhaust pipeline from the top of the excavation bin of the shield machine, connecting the exhaust pipeline into a pumping pipeline which extends to the outside of the tunnel, leading out an air inlet pipeline from the top of the air cushion bin of the shield machine, and connecting the air inlet pipeline into an air compressor system of the shield machine. When the liquid level sensor of the excavation bin of the shield machine monitors the liquid level of the excavation bin to be reduced, the accumulation of harmful gas in the excavation bin is proved, and the shield machine stops working. And the air compressor system of the shield machine pressurizes an air cushion cabin of the shield machine through the air inlet pipeline, and discharges harmful gas through the exhaust pipeline.
The mud buffer tank is used for temporarily storing mud flowing out of the excavation bin, the liquid level mirror is arranged in the mud buffer tank, the mud is introduced into the exhaust pipeline along with harmful gas and enters the mud buffer tank, mud reserves can be observed in the liquid level mirror, and the mud discharge valve is opened to discharge the mud.
The exhaust pipeline is connected to the exhaust flushing pipeline, and the air inlet pipeline is connected to the air inlet flushing pipeline for preventing the accumulated slurry in the flushing pipeline from being blocked.
The exhaust pipeline in arrange exhaust overflow valve, exhaust pressure gauge, exhaust speed regulating valve, exhaust harmful gas sensor, the exhaust overflow valve be used for stabilizing exhaust pipeline and excavation storehouse internal pressure, the exhaust pressure gauge be used for observing the pressure value in the exhaust pipeline, the exhaust speed regulating valve be used for adjusting the gas velocity in the exhaust pipeline, prevent that the too fast harmful gas friction of velocity from arousing the deflagration, exhaust harmful gas sensor be used for monitoring whether harmful gas in the exhaust pipeline clear away completely, the air inlet pipeline in arrange inlet overflow valve, air inlet pressure gauge, air inlet speed regulating valve, air inlet harmful gas sensor, the air inlet overflow valve be used for stabilizing air inlet pipeline and air cushion storehouse internal pressure, the air inlet pressure gauge be used for observing the pressure value in the air inlet pipeline, the air inlet speed regulating valve be used for adjusting the gas velocity in the air inlet pipeline, the air inlet harmful gas sensor be used for monitoring whether harmful gas in the air inlet pipeline is backward flowing.
The invention has the following beneficial effects:
1) The cost is saved: the harmful gas reduction and emission technology in the construction method of the river crossing tunnel of the existing slurry balance shield machine has high requirements on constructors and relevant construction technologies, and the method directly eliminates the harmful gas through the air pressure system of the shield machine, avoids additionally arranging a negative pressure vacuum pump, and reduces the cost.
2) The safety degree is improved: the harmful gas accumulated in the excavation bin cannot be timely removed by the existing harmful gas reduction and emission technology for river crossing tunnel construction, and various hidden danger risks caused by the accumulation of the harmful gas in the excavation bin can be avoided.
3) The construction difficulty is reduced: the invention can avoid the inconvenience to construction caused by the accumulation of harmful gas in the excavation bin in the river crossing construction process.
4) The working time is saved: the invention only needs to take a certain time to clear the harmful gas in the excavation bin, can recover the work in a short time, and does not have great influence on the construction.
Drawings
FIG. 1 is a schematic diagram of a harmful gas treatment device of an excavation bin of a large-diameter slurry shield machine.
In the figure: the device comprises the following components of a 1-excavation bin, a 2-air cushion bin, a 3-air inlet pipeline, a 4-air inlet valve a, a 5-air inlet flushing pipeline, a 6-air inlet flushing valve, a 7-air inlet valve b, an 8-air inlet overflow valve, a 9-air inlet pressure gauge, a 10-air inlet speed regulating valve, an 11-air inlet harmful gas sensor, a 12-air outlet pipeline, a 13-air outlet valve a, a 14-air outlet flushing pipeline, a 15-air outlet flushing valve, a 16-air outlet valve b, a 17-mud discharging valve, a 18-mud buffer tank, a 19-liquid level mirror, a 20-air outlet valve c, a 21-air outlet pressure gauge, a 22-air outlet speed regulating valve, a 23-air outlet harmful gas sensor and a 24-air outlet overflow valve.
Detailed Description
The invention will be further described with reference to the drawings
Referring to fig. 1, the method and the device for treating harmful gas in the excavation bin of the large-diameter slurry shield machine comprise an air inlet pipeline (3), an air inlet valve a (4), an air inlet valve b (7), an air inlet flushing pipeline (5), an air inlet flushing valve (6), an air inlet overflow valve (8), an air inlet pressure gauge (9), an air inlet speed regulating valve (10), an air inlet harmful gas sensor (11), an air exhaust pipeline (12), an air exhaust valve a (13), an air exhaust valve b (16), an air exhaust valve c (20), an air exhaust flushing pipeline (14), an air exhaust flushing valve (15), a slurry buffer tank (18), a liquid level mirror (19), a slurry discharge valve (17), an air exhaust overflow valve (24), an air exhaust pressure gauge (21), an air exhaust speed regulating valve (22) and an air exhaust harmful gas sensor (23).
A mud buffer tank (18) is arranged in the exhaust pipeline (12) and used for temporarily storing mud flowing out of the excavation bin (1), and a liquid level mirror (19) is arranged in the mud buffer tank (18) and used for monitoring the storage condition of the mud in the mud buffer tank (18).
The exhaust pipeline (12) is connected to an exhaust flushing pipeline (14), and the air inlet pipeline (3) is connected to an air inlet flushing pipeline (5) for preventing the slurry accumulated in the flushing pipeline from being blocked.
An exhaust overflow valve (24), an exhaust pressure gauge (21), an exhaust speed regulating valve (22) and an exhaust harmful gas sensor (23) are arranged in the exhaust pipeline (12), the exhaust overflow valve (24) is used for stabilizing the pressure in the exhaust pipeline (12) and the excavation bin (1), the exhaust pressure gauge (21) is used for observing the pressure value in the exhaust pipeline (12), the exhaust speed regulating valve (22) is used for regulating the gas flow rate in the exhaust pipeline (12) to prevent deflagration caused by the friction of the harmful gas with too fast flow rate, the exhaust harmful gas sensor (23) is used for monitoring whether the harmful gas in the exhaust pipeline (12) is completely removed, an air inlet overflow valve (8), an air inlet pressure gauge (9), an air inlet speed regulating valve (10) and an air inlet harmful gas sensor (11) are arranged in the air inlet pipeline (3), the air inlet overflow valve (8) is used for stabilizing the pressure in the air inlet pipeline (3) and the air cushion bin (2), the air inlet pressure gauge (9) is used for observing the pressure value in the air inlet pipeline (3), the air inlet speed regulating valve (10) is used for regulating the gas flow rate in the air inlet pipeline (3), and whether the harmful gas sensor (11) is used for monitoring the back flow rate of the harmful gas in the air inlet pipeline (3).
As shown in FIG. 1, the arrangement mode of the harmful gas treatment device of the excavation bin of the large-diameter slurry shield machine is as follows:
an exhaust pipeline is led out from the top of an excavation bin (1) of the shield tunneling machine, an exhaust valve a (13), an exhaust flushing pipeline (14), an exhaust valve b (16), a slurry buffer tank (18), an exhaust valve c (20), an exhaust overflow valve (24), an exhaust pressure gauge (21), an exhaust speed regulating valve (22) and an exhaust harmful gas sensor (23) are sequentially arranged on the exhaust pipeline, an exhaust flushing valve (15) is arranged on the exhaust flushing pipeline (14), a slurry discharge valve (17) is arranged below the slurry buffer tank (18), and the exhaust pipeline (12) is connected into a pumping pipeline which extends to the outside of a tunnel all the time. An air inlet pipeline (3) is led out from the top of an air cushion bin (2) of the shield machine, an air inlet valve a (4), an air inlet flushing pipeline (5), an air inlet valve b (7), an air inlet overflow valve (8), an air inlet pressure gauge (9), an air inlet speed regulating valve (10) and an air inlet harmful gas sensor (11) are sequentially arranged on the air inlet pipeline, an air inlet flushing valve (6) is arranged on the air inlet flushing pipeline (5), and the air inlet pipeline (3) is connected into an air compressor system of the shield machine.
The method for treating the harmful gas in the excavation bin of the large-diameter slurry shield machine comprises the following steps:
when the liquid level sensor of the excavation bin of the shield machine monitors that the liquid level of the excavation bin (1) is reduced, the harmful gas is monitored to be accumulated in the excavation bin (1), and the shield machine stops working. Opening an air inlet valve a (4), an air inlet valve b (7), an air outlet valve a (13), an air outlet valve b (16) and an air outlet valve c (20), closing an air inlet flushing valve (6), an air outlet flushing valve (15) and a mud discharging valve (17), pressurizing an air cushion bin (2) of the shield machine through an air inlet pipeline (3) by the shield machine air compressor system, and discharging harmful gas through an air outlet pipeline (12). The mud is introduced into the exhaust pipeline (12) along with harmful gas and enters the mud buffer tank (18), so that the mud reserve can be observed in the liquid level mirror (19), and the mud discharge valve (17) is opened to discharge the mud. After the harmful gas is clearly finished, an air inlet flushing valve (6) and an air inlet valve a (4) are opened, an air inlet valve b (7) is closed, an air inlet flushing pipeline (5) is communicated with a water flushing air inlet pipeline (3), an exhaust flushing valve (15), an exhaust valve a (13) and an exhaust valve b (16) are opened, an exhaust valve c (20) is closed, an exhaust flushing pipeline (14) is communicated with a water flushing exhaust pipeline (12) and a mud buffer tank (18), and mud solidification blocking is prevented.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the content and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a major diameter slurry shield machine excavation storehouse harmful gas processing apparatus which characterized in that: the device comprises an air inlet pipeline (3), an air inlet valve a (4), an air inlet valve b (7), an air inlet flushing pipeline (5), an air inlet flushing valve (6), an air inlet overflow valve (8), an air inlet pressure gauge (9), an air inlet speed regulating valve (10), an air inlet harmful gas sensor (11), an air outlet pipeline (12), an air outlet valve a (13), an air outlet valve b (16), an air outlet valve c (20), an air outlet flushing pipeline (14), an air outlet flushing valve (15), a mud buffer tank (18), a liquid level mirror (19), a mud discharge valve (17), an air outlet overflow valve (24), an air outlet pressure gauge (21), an air outlet speed regulating valve (22) and an air outlet harmful gas sensor (23); the device comprises an exhaust pipeline (12), a slurry buffer tank (18) and a liquid level mirror (19), wherein the slurry buffer tank (18) is arranged in the exhaust pipeline (12) and is used for temporarily storing slurry flowing out of an excavation bin (1), and the liquid level mirror (19) is arranged in the slurry buffer tank (18) and is used for monitoring the storage condition of the slurry in the slurry buffer tank (18); the exhaust pipeline (12) is connected to an exhaust flushing pipeline (14), and the air inlet pipeline (3) is connected to an air inlet flushing pipeline (5) for preventing the slurry accumulated in the flushing pipeline from being blocked; an exhaust pipeline is led out from the top of an excavation bin (1) of the shield tunneling machine, an exhaust valve a (13), an exhaust valve b (16), a mud buffer tank (18), an exhaust valve c (20), an exhaust overflow valve (24), an exhaust pressure gauge (21), an exhaust speed regulating valve (22) and an exhaust harmful gas sensor (23) are sequentially arranged on the exhaust pipeline, an exhaust flushing pipeline (14) is connected to the exhaust pipeline (12) between the exhaust valve a (13) and the exhaust valve b (16), an exhaust flushing valve (15) is arranged on the exhaust flushing pipeline, a mud discharge valve (17) is arranged below the mud buffer tank (18), and the exhaust pipeline (12) is connected to a pumping pipeline which extends to the outside of a tunnel; an air inlet pipeline (3) is led out from the top of an air cushion bin (2) of the shield machine, an air inlet valve a (4), an air inlet valve b (7), an air inlet overflow valve (8), an air inlet pressure gauge (9), an air inlet speed regulating valve (10) and an air inlet harmful gas sensor (11) are sequentially arranged on the air inlet pipeline, an air inlet flushing pipeline (5) is connected into the air inlet pipeline (3) between the air inlet valve a (4) and the air inlet valve b (7), and an air inlet flushing valve (6) is arranged on the air inlet pipeline, and the air inlet pipeline (3) is connected into an air compressor system of the shield machine; the intake harmful gas sensor (11) is used for monitoring whether harmful gas flows backward in the intake pipeline (3).
2. The harmful gas treatment device for the excavation bin of the large-diameter slurry shield machine according to claim 1, wherein an exhaust overflow valve (24) is used for stabilizing the pressure in an exhaust pipeline (12) and the excavation bin (1), an exhaust pressure gauge (21) is used for observing the pressure value in the exhaust pipeline (12), an exhaust speed regulating valve (22) is used for regulating the gas flow rate in the exhaust pipeline (12) to prevent harmful gas friction from causing deflagration due to too fast flow rate, an exhaust harmful gas sensor (23) is used for monitoring whether harmful gas in the exhaust pipeline (12) is completely removed or not, an air inlet overflow valve (8) is used for stabilizing the pressure in an air inlet pipeline (3) and an air cushion bin (2), an air inlet pressure gauge (9) is used for observing the pressure value in the air inlet pipeline (3), and an air inlet speed regulating valve (10) is used for regulating the gas flow rate in the air inlet pipeline (3).
3. A method for treating harmful gas in the excavation chamber of a large-diameter slurry shield machine, which is characterized in that the device for treating the harmful gas in the excavation chamber of the large-diameter slurry shield machine according to claim 1 is adopted,
the method comprises the following steps:
1. when the liquid level sensor of the excavation bin of the shield machine monitors that the liquid level of the excavation bin (1) is reduced, the harmful gas is monitored to be accumulated in the excavation bin (1), and the shield machine stops working;
2. opening an air inlet valve a (4), an air inlet valve b (7), an air outlet valve a (13), an air outlet valve b (16) and an air outlet valve c (20), closing an air inlet flushing valve (6), an air outlet flushing valve (15) and a mud discharging valve (17), pressurizing an air cushion bin (2) of the shield machine through an air inlet pipeline (3) by the shield machine air compressor system, and discharging harmful gas through an air outlet pipeline (12);
3. the mud is introduced into the exhaust pipeline (12) along with harmful gas and enters the mud buffer tank (18), so that the mud reserve can be observed in the liquid level mirror (19), and the mud discharge valve (17) is opened to discharge the mud;
4. after harmful gas is removed, an air inlet flushing valve (6) and an air inlet valve a (4) are opened, an air inlet valve b (7) is closed, an air inlet flushing pipeline (5) is communicated with a water flushing air inlet pipeline (3), an exhaust flushing valve (15), an exhaust valve a (13) and an exhaust valve b (16) are opened, an exhaust valve c (20) is closed, an exhaust flushing pipeline (14) is communicated with a water flushing exhaust pipeline (12) and a mud buffer tank (18), and mud solidification blocking is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784552.4A CN109469489B (en) | 2018-07-17 | 2018-07-17 | Method and device for treating harmful gas in excavation bin of large-diameter slurry shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784552.4A CN109469489B (en) | 2018-07-17 | 2018-07-17 | Method and device for treating harmful gas in excavation bin of large-diameter slurry shield machine |
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| Publication Number | Publication Date |
|---|---|
| CN109469489A CN109469489A (en) | 2019-03-15 |
| CN109469489B true CN109469489B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810784552.4A Active CN109469489B (en) | 2018-07-17 | 2018-07-17 | Method and device for treating harmful gas in excavation bin of large-diameter slurry shield machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125129A (en) * | 2019-06-20 | 2019-08-16 | 中铁工程装备集团有限公司 | A kind of slurry shield pernicious gas collection device |
| CN110500101A (en) * | 2019-09-24 | 2019-11-26 | 中国电建集团铁路建设有限公司 | A kind of harmful gas processing device and processing method for earth pressure balanced shield, EPBS |
| CN111175450A (en) * | 2020-01-10 | 2020-05-19 | 中铁十四局集团大盾构工程有限公司 | Real-time detection device for harmful gas in excavation bin of large-diameter slurry shield machine |
| CN111365004B (en) * | 2020-03-11 | 2022-01-25 | 中铁二局集团有限公司 | Shield soil bin ventilation construction method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06257397A (en) * | 1993-03-08 | 1994-09-13 | Kajima Corp | Leak/inflow preventing method for harmful gas of shield machine |
| JPH07217375A (en) * | 1994-01-28 | 1995-08-15 | Kajima Corp | Detection system of toxic gas in facing shield method |
| JPH07293199A (en) * | 1994-04-25 | 1995-11-07 | Kajima Corp | Method and device for detecting noxious gas in working face for shield tunneling method |
| JPH09166525A (en) * | 1995-12-18 | 1997-06-24 | Butsuri Keisoku Consultant:Kk | Gas detecting method for shield excavation and device therefor |
| JP2882481B1 (en) * | 1998-04-28 | 1999-04-12 | 株式会社銭高組 | Mud / mud pressure shield excavation combined use formation gas detection method and detection device |
| JP2001032680A (en) * | 1999-07-21 | 2001-02-06 | Kajima Corp | Extension method for piping and device therefor |
| JP2005023614A (en) * | 2003-06-30 | 2005-01-27 | Fukuda Corp | Freezing pipe used for freezing treatment and freezing method using freezing pipe |
| JP2014173228A (en) * | 2013-03-06 | 2014-09-22 | Maeda Corp | Apparatus for discharging harmful gas-containing excavated soil in shield method |
| CN205000971U (en) * | 2015-10-10 | 2016-01-27 | 银川英奥特自控有限公司 | Shield constructs with electric mixed air pressurizer |
| CN107327303A (en) * | 2017-08-15 | 2017-11-07 | 中铁工程装备集团有限公司 | A kind of slurry shield machine muddy water storehouse pressure keeping method and device |
| CN108194089A (en) * | 2017-12-21 | 2018-06-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of slurry shield slurry loop circulation system |
-
2018
- 2018-07-17 CN CN201810784552.4A patent/CN109469489B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06257397A (en) * | 1993-03-08 | 1994-09-13 | Kajima Corp | Leak/inflow preventing method for harmful gas of shield machine |
| JPH07217375A (en) * | 1994-01-28 | 1995-08-15 | Kajima Corp | Detection system of toxic gas in facing shield method |
| JPH07293199A (en) * | 1994-04-25 | 1995-11-07 | Kajima Corp | Method and device for detecting noxious gas in working face for shield tunneling method |
| JPH09166525A (en) * | 1995-12-18 | 1997-06-24 | Butsuri Keisoku Consultant:Kk | Gas detecting method for shield excavation and device therefor |
| JP2882481B1 (en) * | 1998-04-28 | 1999-04-12 | 株式会社銭高組 | Mud / mud pressure shield excavation combined use formation gas detection method and detection device |
| JP2001032680A (en) * | 1999-07-21 | 2001-02-06 | Kajima Corp | Extension method for piping and device therefor |
| JP2005023614A (en) * | 2003-06-30 | 2005-01-27 | Fukuda Corp | Freezing pipe used for freezing treatment and freezing method using freezing pipe |
| JP2014173228A (en) * | 2013-03-06 | 2014-09-22 | Maeda Corp | Apparatus for discharging harmful gas-containing excavated soil in shield method |
| CN205000971U (en) * | 2015-10-10 | 2016-01-27 | 银川英奥特自控有限公司 | Shield constructs with electric mixed air pressurizer |
| CN107327303A (en) * | 2017-08-15 | 2017-11-07 | 中铁工程装备集团有限公司 | A kind of slurry shield machine muddy water storehouse pressure keeping method and device |
| CN108194089A (en) * | 2017-12-21 | 2018-06-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of slurry shield slurry loop circulation system |
Non-Patent Citations (1)
| Title |
|---|
| 富水砂砾石复合地层土压平衡盾构气压开仓施工技术;董泽龙;;城市道桥与防洪(第03期);127-130 * |
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| CN109469489A (en) | 2019-03-15 |
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